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Efficacy Study of GSK's Investigational Respiratory Syncytial Virus (RSV) Vaccine in Adults Aged 60 Years and Above

A Phase 3, Randomized, Placebo-controlled, Observer-blind, Multi-country Study to Demonstrate the Efficacy of a Single Dose and Annual Revaccination Doses of GSK's RSVPreF3 OA Investigational Vaccine in Adults Aged 60 Years and Above

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04886596
Enrollment
26675
Registered
2021-05-14
Start date
2021-05-25
Completion date
2024-05-31
Last updated
2025-07-31

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Respiratory Syncytial Virus Infections

Keywords

Respiratory syncytial virus, Lower respiratory tract disease, Efficacy study, Adults aged 60 years and above

Brief summary

This study will evaluate the efficacy of the RSVPreF3 OA investigational vaccine in preventing Lower Respiratory Tract Disease (LRTD) caused by RSV in adults ≥60 years of age following a single dose of the RSVPreF3 OA vaccine and following annual revaccination doses in Northern Hemisphere (NH) and in Southern Hemisphere (SH). This study will also assess if the vaccine is safe and induces an immune response.

Detailed description

Dose 1 Period will be conducted in 2 parts: Part 1: Participants in RSVPreF3 groups will receive lots 1, 2 and 3 of the investigational vaccine before Season 1. Part 2: Will be initiated when the vaccine lots in part 1 are exhausted at the study sites and participants in RSVPreF3 group will receive lot 4 of the investigational vaccine before Season 1.

Interventions

BIOLOGICALPlacebo

Placebo administered intramuscularly into the deltoid of the non-dominant arm at day 1 and before Season 2 to the Placebo Group, and before Season 2 to the participants of the RSVPreF3 Group, that are re-randomized to the RSV\_1 dose group.

RSVPreF3 OA vaccine administered intramuscularly into the deltoid of the non-dominant arm at Day 1 in the RSVPreF3 group, and before Season 2 to the participants of the RSVPreF3 group that are re-randomized to the RSV\_annual group.

Sponsors

GlaxoSmithKline
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Masking description

This is an observer blind study.

Eligibility

Sex/Gender
ALL
Age
60 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* A male or female ≥ 60 YOA at the time of first vaccination, who live in the community (community dwelling participants) or in a long-term care facility (LTCF participants). * Participants who, in the opinion of the investigator, can and will comply with the requirements of the protocol. Note: In case of physical incapacity that would preclude the self-completion of the diary cards and/or questionnaires, either site staff can assist the participant (for activities performed during site visits) or the participant may assign a caregiver to assist him/her with this activity (for activities performed at home or in the LTCF). However, at no time, the site staff or caregiver will evaluate the participant's health status while answering diaries and/or questionnaires or make decisions on behalf of the participant * Written or witnessed informed consent obtained from the participant prior to performance of any study specific procedure. * Participants who are medically stable in the opinion of the investigator at the time of first vaccination. Participants with chronic stable medical conditions with or without specific treatment, such as diabetes, hypertension or cardiac disease, are allowed to participate in this study if considered by the investigator as medically stable.

Exclusion criteria

Medical conditions * Any confirmed or suspected immunosuppressive or immunodeficient condition resulting from disease or immunosuppressive/cytotoxic therapy, based on medical history and physical examination (no laboratory testing required). * History of any reaction or hypersensitivity likely to be exacerbated by any component of the vaccine. * Hypersensitivity to latex. * Serious or unstable chronic illness. * Any history of dementia or any medical condition that moderately or severely impairs cognition. Note: If deemed necessary for clinical evaluation, the investigator can use tools such as Mini-Mental State Exam (MMSE), Mini-Cog or Montreal Cognitive Assessment (MoCA) to determine cognition levels of the participant. * Recurrent or un-controlled neurological disorders or seizures. Participants with medically-controlled active neurological diseases can be enrolled in the study as per investigator assessment, provided that their condition will allow them to comply with the requirements of the protocol. * Significant underlying illness that in the opinion of the investigator would be expected to prevent completion of the study. * Any medical condition that in the judgment of the investigator would make intramuscular injection unsafe. Prior/Concomitant therapy * Use of any investigational or non-registered product (drug, vaccine or medical device) other than the study vaccine during the period beginning 30 days before the first study vaccine administration, or planned use during the study period. * Planned or actual administration of a vaccine not foreseen by the study protocol in the period starting 30 days before each dose and ending 30 days after each dose of study vaccine administration, with the exception of inactivated and subunit influenza vaccines which can be administered up to 14 days before or from 14 days after each study vaccination. * Previous vaccination with an RSV vaccine. * Administration of long-acting immune-modifying drugs or planned administration at any time during the study period. * Administration of immunoglobulins and/or any blood products or plasma derivatives during the period starting 90 days before the first study vaccine or planned administration during the study period. * Chronic administration (defined as more than 14 consecutive days in total) of immunosuppressants or other immune-modifying drugs during the period starting 90 days prior to the first study vaccine administration or planned administration during the study period. For corticosteroids, this will mean prednisone ≥20 mg/day, or equivalent. Inhaled and topical steroids are allowed. Prior/Concurrent clinical study experience • Concurrently participating in another clinical study, at any time during the study period, in which the participant has been or will be exposed to an investigational or a non-investigational vaccine/product (drug or medical device). Other exclusions * History of chronic alcohol consumption and/or drug abuse as deemed by the investigator to render the potential participant unable/unlikely to provide accurate safety reports or comply with study procedures. * Bedridden participants. * Planned move during the study period that will prohibit participating in the trial until study end. This includes: * Planned move during the study period to another LTCF that will prohibit participation in the trial until study end. * Planned move from the community to a LTCF that will prohibit participation in the trial until study end. * Participation of any study personnel or their immediate dependants, family, or household members. * Planned leave or holiday of 4 consecutive weeks or more during the RSV seasons\* covered by the study, that would prohibit the reporting of ARI cases and attendance to ARI visit. * RSV seasons are from October to April in NH and from March to September in SH.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated Lower Respiratory Tract Disease (LRTD) During the First Season Following a Single Dose of the RSVPreF3 OA VaccineFrom Day 15 post-vaccination up to end of season 1 in the Northern Hemisphere (NH) [a median of approximately 6.7 months (6.9 months in NH and 3.5 months in Southern Hemisphere [SH])]First episode of Reverse Transcriptase-Polymerase Chain Reaction (RT-PCR)-confirmed RSV A and/or RSV B- associated LRTD during the first season was assessed. The case definition for RSV-confirmed LRTD is as follows: Presence of at least one RSV-positive swab detected by RT-PCR.

Secondary

MeasureTime frameDescription
Number of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD Over Several Seasons Following Annual Revaccination Doses of the RSVPreF3 OA VaccineFrom Day 15 post first vaccination up to end of season 2 and up to end of season 3 in the NH (assessed approximately over 2 and 3 years in NH)Efficacy of annual revaccination doses of the RSVPreF3 OA vaccine was assessed against RSV A and/or B confirmed LRTD over several seasons according to the case definition.
Number of Participants With First Episode of RT-PCR Confirmed RSV Subtype A and Subtype B LRTD Over 3 Seasons Following a Single Dose of the RSVPreF3 OA VaccineFrom Day 15 post first vaccination up to end of season 3 in the NH (assessed approximately over 3 years in NH, and 2.5-3 years in SH)Efficacy of a single dose of the RSVPreF3 OA vaccine was assessed against LRTD episode caused by RSV A and B subtype over 3 seasons according to the case definition.
Number of Participants With First Episode of RT-PCR Confirmed RSV Subtype A and Subtype B LRTD Over 3 Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following 1 Annual Revaccination DoseFrom Day 15 post first vaccination up to end of season 3 in the NH (assessed approximately over 3 years in NH, and 2.5-3 years in SH)Efficacy of a single dose and 1 annual revaccination dose of the RSVPreF3 OA vaccine was assessed against LRTD episode caused by RSV A and B subtype over 3 seasons according to the case definition.
Number of Participants With First Episode of RT-PCR Confirmed LRTD Caused by Human Metapneumovirus (hMPV) up to the End of Season 1 Following a Single Dose of the RSVPreF3 OA VaccineFrom Day 15 post-vaccination up to end of season 1 in the SH [a median of approximately 11.5 months (11.6 months in NH and 9.1 months in SH)]
Number of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD, by Age Categories Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesFrom Day 15 post first vaccination up to end of season 3 in the NH (assessed approximately over 3 years in NH and 2.5-3 years in SH)Efficacy of a single dose of the RSVPreF3 OA vaccine and annual revaccination doses was assessed against RSV A and/or B confirmed LRTD episode according to the case definition, in the following age categories: greater than or equal to (≥) 65 years of age (YOA), ≥70 YOA and ≥80 YOA.
Number of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by RSV Season Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesFrom Day 15 post first dose or start of the RSV season to the first occurrence of RSV-confirmed LRTD at each RSV season (assessed approximately over 7 months at each season [Seasons 1 and 2 in SH, Seasons 1, 2 and 3 in NH])Efficacy of a single dose of the RSVPreF3 OA vaccine and annual revaccination doses was assessed against RSV A and/or B confirmed LRTD episode according to the case definition, by RSV season as follows: VE after each season includes the first occurrence of episodes reported from Day 15 post vaccination at first season, and for the next seasons, excluding analysis of participants who already reported a case in the previous season. The RSV season may be extended based on epidemiology data.
Number of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Year Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesFrom Day 15 post first dose and each revaccination dose up to next dose or end of study (assessed approximately over a year after each vaccination [at Year 1, Year 2 and Year 3])Efficacy of a single dose of the RSVPreF3 OA vaccine and annual revaccination doses was assessed against RSV A and/or B confirmed LRTD episode according to the case definition, by years after vaccination as follows: VE at each year includes the first occurrence of episodes reported from Day 14 post vaccination at first year, and for the next years, excluding analysis of participants who already reported a case in the previous year.
Number of Participants With First Episode of RT-PCR Confirmed RSV A and /or B Associated LRTD, Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesFrom Day 15 post first dose to the first occurrence of RSV LRTD (assessed approximately over 3 years in the NH and 2.5-3 years in SH)
Number of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Comorbidities Using Charlson Comorbidity Index Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesFrom Day 15 post first vaccination up to end of season 3 in the NH (assessed approximately over 3 years in NH and 2.5-3 years in SH)Efficacy of a single dose of the RSVPreF3 OA vaccine and annual revaccination doses is assessed against RSV A and/or B associated LRTD episode by baseline comorbidities using Charlson Comorbidity Index. Low/medium Risk = Participants with co-morbidity score at baseline less than or equal to 3 (Charlson Index); High Risk = Participants with co-morbidity score at baseline greater than 3 (Charlson Index).
Number of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Comorbidities According to Comorbidities of Interest Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesFrom Day 15 post first vaccination up to end of season 3 in the NH (assessed approximately over 3 years in NH and 2.5-3 years in SH)Efficacy of a single dose of the RSVPreF3 OA vaccine and annual revaccination doses is assessed against RSV A and/or B associated LRTD episode by baseline comorbidities of interest divided into 2: cardiorespiratory conditions such as chronic obstructive pulmonary disease (COPD), asthma, any chronic respiratory or pulmonary disease, and endocrinometabolic conditions such as diabetes mellitus type 1 or 2, chronic heart failure and advanced liver or renal disease.
Number of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Frailty Status Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesFrom Day 15 post first vaccination up to end of season 3 in the NH (assessed approximately over 3 years in NH and 2.5-3 years in SH)Efficacy of a single dose of the RSVPreF3 OA vaccine and annual revaccination doses is assessed against RSV A and /or B associated LRTD episode according to the case definition, by baseline frailty status of frail, pre-frail and fit. Frail = Participants with a walking speed of less than (\<) 0.4 meters per second (m/s) or who were not able to perform the test; Pre-Frail = Participants with a walking speed between 0.4-0.99 m/s; Fit = Participants with a walking speed of ≥1 m/s.
Number of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated Severe LRTD Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesFrom Day 15 post first vaccination up to end of season 3 in the NH (assessed approximately over 3 years in NH and 2.5-3 years in SH)Efficacy of a single dose of the RSVPreF3 OA vaccine and annual revaccination doses is assessed against RSV A and/or B associated severe LRTD episode. Case definition for RSV-confirmed severe LRTD: An RT-PCR confirmed case of RSV-associated severe LRTD is characterized by presence of lower respiratory signs or an LRTD episode assessed as severe by the investigator (Severe LRTD case definition 1) or presence of an LRTD with need for oxygen supplementation or need for positive airway pressure therapy or need for other types of mechanical ventilation (Severe LRTD case definition 2) and with at least one RSV positive swab detected by RT-PCR.
Number of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated ARI Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesFrom Day 15 post first vaccination up to end of season 3 in the NH (assessed approximately over 3 years in NH and 2.5-3 years in SH)Efficacy of a single dose of the RSVPreF3 OA vaccine and annual revaccination doses is assessed against RSV confirmed A and/or B associated ARI episode. A case of RT-PCR confirmed RSV-associated ARI is characterized by the presence of respiratory symptoms/signs for at least 24 hours OR respiratory symptom/sign + systemic symptom/sign for at least 24 hours with at least one RSV-positive swab detected by RT-PCR.
Number of Participants With First Episode of Any ARI or Any LRTD Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesFrom Day 15 post first vaccination up to study end (approximately 3 years for NH and 2.5-3 years for SH)Efficacy of a single dose of the RSVPreF3 OA vaccine and annual revaccination doses is assessed against any ARI and any LRTD.
Number of Hospitalizations Due to RSV-confirmed Respiratory Diseases or Due to Complication Related to RSV-confirmed Respiratory Diseases, Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyFrom Day 15 post-first vaccination up to study end (approximately 3 years for NH and 2.5-3 years for SH)RSV infection was confirmed by RT-PCR.
Number of Hospitalizations Due to Any Respiratory Diseases or Due to a Complication Related to Any Respiratory Diseases, During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyFrom Day 15 post-first vaccination up to study end (approximately 3 years for NH and 2.5-3 years for SH)A diagnosis of respiratory disease included: acute respiratory infections, other diseases of upper respiratory tract, pneumonia and influenza, chronic obstructive pulmonary disease and allied conditions, pneumoconioses and other lung diseases due to external agents, other diseases of respiratory system.
Number of Complications Related to RSV-confirmed ARI During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyFrom Day 15 post-first vaccination up to study end (approximately 3 years for NH and 2.5-3 years for SH)RSV infection was confirmed by RT-PCR.
Number of Complications Related to Any ARI During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyFrom Day 15 post-first vaccination up to study end (approximately 3 years for NH and 2.5-3 years for SH)RSV infection was confirmed by RT-PCR.
Maximum Influenza Patient-Reported Outcome (Flu-PRO) Chest Score for the Participants With RT-PCR-confirmed RSV A and/or B-associated ARI Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesDuring the first 7 days from the onset of ARI symptoms (assessed from Day 15 post first vaccination dose until end of study [approximately 3 years in NH and 2.5-3 years in SH])For this outcome measure, the Health Related -Quality of life (HR-QOL) score is measured by Flu-PRO questionnaire version 2.0. The Flu-PRO is a 32 items daily diary, which assesses influenza signs across 6 body systems- nose, throat, eyes, chest/respiratory, gastrointestinal and body/systemic. The objective of this outcome measure was to present data only for chest/respiratory system after a single dose and after annual revaccination. The FLU-PRO score was computed as the mean score across questionaire items for chest/respiratory body system, with the scores ranging from 0 (symptom free) to 4 (very severe symptoms).
Least Square Mean Flu-PRO Total Score for the Participants With RT-PCR-confirmed RSV A and/or B-associated ARI Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesDuring the first 7 days from the onset of ARI symptoms (assessed from Day 15 post first vaccination dose until end of study [approximately 3 years in NH and 2.5-3 years in SH])The Flu-PRO questionnaire version 2.0 is a 32 items daily diary, which assesses influenza signs across 6 body systems- nose, throat, eyes, chest/respiratory, gastrointestinal and body/systemic. The FLU-PRO total score was computed as the mean score across all 32 items of the questionaire for all 6 body systems, with the total scores ranging from 0 (symptom free) to 4 (very severe symptoms).
EuroQol 5-dimension Health Questionnaire (EQ-5D) Utility Score for Participants With RT-PCR-confirmed RSV A and/or B-associated ARI Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesAt the ARI visit (assessed from Day 15 post first vaccination dose until end of study- approximately 3 years in NH and 2.5-3 years in SH)The EQ-5D is a general health utility questionnaire with health states, defined through 5 dimensions- mobility, self-care, usual activities, pain/ discomfort and anxiety/ depression. A participant who responds 1 (no problem/no symptom) to all 5 items has a profile 11111 and similarly a participant who responds 3 (the highest level of difficulty or symptom) to all items has a profile 33333. The health states indicated in these 5 dimensions are converted and presented as a single mean index value as recommended by EuroQol group, where values range from 0 (worst) to 1 (full health).
Least Square Mean of Short Form-12 (SF-12) Health Survey for Participants With RT-PCR Confirmed RSV A and/or B-associated ARI Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesAt the ARI visit (assessed from one-month post first vaccination dose until end of study- approximately 3 years in NH and 2.5-3 years in SH)SF-12 is a health survey with 12 questions, covering 8 domains- physical functioning, role physical, bodily pain, general health, vitality, social functioning, role emotional and mental health. Summary scores are computed from these domains for the physical and mental component. The total score of the SF-12 questionnaire is evaluated on a scale from 0 to 100, with a higher score indicating a better perceived health-related quality of life.
Duration in Days of RT-PCR Confirmed RSV A and/or B ARI and LRTD EpisodesFrom Day 15 post first dose to end of Season 1, from 15 days post-second dose administration to end of Season 2, and from start to end of Season 3 [all seasons summing approximately 3 years in NH and 2.5-3 years in SH]The duration in days of RT-PCR confirmed RSV A and/or B ARI and LRTD episodes are described.
Number of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1From Day 15 post-dose 1 administration up to end of season 1 in the SH [a median of approximately 11.5 months (11.6 months in NH and 9.1 months in SH)]RSV infection was confirmed by RT-PCR, and the symptoms/signs and supportive therapy use associated with RT-PCR confirmed RSV A and/or RSV B ARI episodes were reported. Fever was defined as a temperature ≥38.0 degrees Celsius (°C) by any route.
Number of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2From Day 15 post-dose 2 administration up to end of Season 2 in SH (a median of approximately 11.9 months [11.9 months in NH and 7.5 months in SH])RSV infection was confirmed by RT-PCR, and the symptoms/signs and supportive therapy use associated with RT-PCR confirmed RSV A and/or RSV B ARI episodes were reported. Fever was defined as a temperature ≥38.0 degrees Celsius (°C) by any route.
Number of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3From start of Season 3 up to end of Season 3 in NH (a median of approximately 7 months)RSV infection was confirmed by RT-PCR, and the symptoms/signs and supportive therapy use associated with RT-PCR confirmed RSV A and/or RSV B ARI episodes were reported. Fever was defined as a temperature ≥38.0 degrees Celsius (°C) by any route.
Number of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1From Day 15 post-dose 1 administration up to end of season 1 in the SH [a median of approximately 11.5 months (11.6 months in NH and 9.1 months in SH)]RSV infection was confirmed by RT-PCR, and the symptoms/signs and supportive therapy use associated with RT-PCR confirmed RSV A and/or RSV B LRTD episodes were reported. Fever was defined as a temperature ≥38.0°C by any route.
Number of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2From Day 15 post-dose 2 administration up to end of Season 2 in SH (a median of approximately 11.9 months [11.9 months in NH and 7.5 months in SH])RSV infection was confirmed by RT-PCR, and the symptoms/signs and supportive therapy use associated with RT-PCR confirmed RSV A and/or RSV B LRTD episodes were reported. Fever was defined as a temperature ≥38.0°C by any route.
Number of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3From start of Season 3 up to end of Season 3 in NH (a median of approximately 7 months)RSV infection was confirmed by RT-PCR, and the symptoms/signs and supportive therapy use associated with RT-PCR confirmed RSV A and/or RSV B LRTD episodes were reported. Fever was defined as a temperature ≥38.0°C by any route.
Number of Participants With RT-PCR Confirmed RSV A and/or B ARI and LRTD Episodes According to SeverityAssessed during the study period (approximately 3 years for NH and 2.5-3 years for SH)RSV A and/or B ARI and LRTD episodes were assessed as mild, moderate or severe by the investigator after the single dose and after annual revaccination. Mild = an ARI/LRTD episode which is easily tolerated by the participant, causing minimal discomfort and not interfering with everyday activities. Moderate = an ARI/LRTD episode which is sufficiently discomforting to interfere with normal everyday activities. Severe = an ARI/LRTD episode which prevents normal, everyday activities.
RSVPreF3 Specific Immunoglobulin G(IgG) Antibody ConcentrationsAt pre-dose 1 (Day 1), Day 31 post-dose 1, pre-season 2 (approximately 10-17 months post Day 1 in NH; 12-21 months post Day 1 in SH) and pre-season 3 (approximately 24-27 months post Day 1, only in NH)The RSVPreF3 IgG antibody concentrations are expressed as geometric mean concentrations (GMCs) in ELISA units per milliliter (EU/mL).
RSV A Neutralizing Antibody TitersAt pre-dose 1 (Day 1), Day 31 post-dose 1, pre-season 2 (approximately 10-17 months post Day 1 in NH; 12-21 months post Day 1 in SH) and pre-season 3 (approximately 24-27 months post Day 1, only in NH)The RSV A neutralizing antibody titers are expressed as geometric mean titers (GMTs).
RSV B Neutralizing Antibody TitersAt pre-dose 1 (Day 1), Day 31 post-dose 1, pre-season 2 (approximately 10-17 months post Day 1 in NH; 12-21 months post Day 1 in SH) and pre-season 3 (approximately 24-27 months post Day 1, only in NH)RSV B neutralizing antibodies are expressed as GMTs.
Number of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsDuring the 4-day follow up period after first vaccination (Day 1), second vaccination (administered pre-season 2) and after the third vaccination (administered pre-season 3 -only applicable for participants in NH])Any solicited event is defined as the occurrence of any solicited adverse event (AE) regardless of intensity grade or relation to study vaccination. Grade 3 = an event which prevented normal, everyday activities. The assessed administration site events include pain, erythema and swelling.
Number of Participants With Any and Grade 3 Solicited Systemic Adverse EventsDuring the 4-day follow up period after first vaccination (Day 1), second vaccination (administered pre-season 2) and after the third vaccination (administered pre-season 3 -only applicable for participants in NH])Any solicited event is defined as the occurrence of any solicited adverse event (AE) regardless of intensity grade or relation to study vaccination. Grade 3 = an event which prevented normal, everyday activities. The assessed solicited systemic events include arthralgia, fatigue, fever, headache and myalgia. Fever is defined as a temperature ≥ 38.0°C by any route. Grade 3 fever is defined as temperature \>39°C by any route.
Number of Days With Solicited Administration Site Adverse EventsDuring the 4-day follow up period after first vaccination (Day 1), second vaccination (administered pre-season 2) and after the third vaccination (administered pre-season 3 -only applicable for participants in NH])
Number of Days With Solicited Systemic Adverse EventsDuring the 4-day follow up period after first vaccination (Day 1), second vaccination (administered pre-season 2) and after the third vaccination (administered pre-season 3 -only applicable for participants in NH])
Number of Participants With Any Unsolicited AEsDuring the 30-day follow up period after first vaccination (Day 1), second vaccination (administered pre-season 2) and after the third vaccination (administered pre-season 3 -only applicable for participants in NH)An unsolicited AE is defined as any AE reported in addition to those solicited during the clinical study. Also, any 'solicited' symptom with onset outside of the specified period of follow-up for solicited symptoms was reported as an unsolicited AE. Any= occurrence of the event regardless of intensity grade or relation to the study vaccination.
Number of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD Over Several Seasons Following a Single Dose of the RSVPreF3 OA VaccineFrom Day 15 post first vaccination up to end of season 2 and up to end of season 3 in the Northern Hemisphere [NH] (assessed approximately over 2 and 3 years in NH)Efficacy of a single dose of the RSVPreF3 OA vaccine was assessed against RSV A and/or B confirmed LRTD over several seasons according to the case definition.
Number of Participants With Potential Immune Mediated Diseases (pIMDs)From the day of the vaccination up to 6 months after each vaccination (first vaccination: at Day 1, second vaccination: at pre-season 2 and the third vaccination: at pre-season 3 -only applicable for participants in NH])pIMDs aredefined as a subset of Adverse Events of Specific Interest (AESIs) that include autoimmune diseases and other inflammatory and/or neurologic disorders of interest which may or may not have an autoimmune aetiology. Any= occurrence of any pIMD regardless of intensity grade or relation to the study vaccination.
Number of Participants With Related SAEsFrom Day 1 up to study end (approximately 3 years for NH and 2.5-3 years for SH)Related SAEs that occur throughout the study are assessed. Related SAEs= Any SAE related to investigational vaccine or related to study participation or to a GSK concomitant medication/vaccine as assessed by the investigator.
Number of Participants With Fatal SAEsFrom Day 1 up to study end (approximately 3 years for NH and 2.5-3 years for SH)Fatal SAEs that occur throughout the study are assessed. Fatal SAEs= Any SAEs leading to deaths.
Number of Participants With Related pIMDsFrom Day 1 up to study end (approximately 3 years for NH and 2.5-3 years for SH)Related pIMD = pIMD assessed by the investigator as related to the study vaccination.
Number of Participants With Serious Adverse Events (SAEs)From the day of the vaccination up to 6 months after each vaccination (first vaccination: at Day 1, second vaccination: at pre-season 2 and the third vaccination: at pre-season 3 -only applicable for participants in NH])An SAE is defined as any untoward medical occurrence that resulted in death, was life-threatening, required hospitalization or prolongation of existing hospitalization, resulted in disability/incapacity, was a congenital anomaly/birth defect in the offspring of a study participant, or in other situations that were considered serious per medical or scientific judgment. Any = occurrence of any SAE regardless of intensity grade or relation to study vaccination.

Countries

Australia, Belgium, Canada, Estonia, Finland, Germany, Italy, Japan, Mexico, New Zealand, Poland, Russia, South Africa, South Korea, Spain, United Kingdom, United States

Participant flow

Pre-assignment details

Out of 26675 participants enrolled in the study, 24972 received study intervention and were included in the Exposed set and started the study.

Participants by arm

ArmCount
RSVPreF3 Group
Participants received a single dose of the RSVPreF3 OA vaccine at Day 1. Before the second vaccination participants in this group were re-randomized into 2 as: a group that received placebo every subsequent year, and a group that received an additional dose of RSVPreF3 OA vaccine every subsequent year of the study.
12,469
Placebo Group
Participants received 1 dose of placebo at Day 1 and an additional dose of placebo every subsequent year of the study.
12,503
Total24,972

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event442441
Overall StudyConsent withdrawal, not due to a (S)AE1,7151,726
Overall StudyLost to Follow-up448465
Overall StudyMigrated/moved from the study area201184
Overall StudyOther298326

Baseline characteristics

CharacteristicRSVPreF3 GroupPlacebo GroupTotal
Age, Continuous69.5 YEARS
STANDARD_DEVIATION 6.5
69.6 YEARS
STANDARD_DEVIATION 6.4
69.5 YEARS
STANDARD_DEVIATION 6.5
Race/Ethnicity, Customized
All Other Races
55 Participants41 Participants96 Participants
Race/Ethnicity, Customized
Asian
953 Participants956 Participants1909 Participants
Race/Ethnicity, Customized
Black or African American
1064 Participants1101 Participants2165 Participants
Race/Ethnicity, Customized
Other
508 Participants469 Participants977 Participants
Race/Ethnicity, Customized
White
9889 Participants9936 Participants19825 Participants
Sex: Female, Male
Female
6489 Participants6429 Participants12918 Participants
Sex: Female, Male
Male
5980 Participants6074 Participants12054 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
265 / 12,503111 / 6,226120 / 6,243
other
Total, other adverse events
5,837 / 12,5033,663 / 6,2263,826 / 6,243
serious
Total, serious adverse events
1,660 / 12,503799 / 6,226796 / 6,243

Outcome results

Primary

Number of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated Lower Respiratory Tract Disease (LRTD) During the First Season Following a Single Dose of the RSVPreF3 OA Vaccine

First episode of Reverse Transcriptase-Polymerase Chain Reaction (RT-PCR)-confirmed RSV A and/or RSV B- associated LRTD during the first season was assessed. The case definition for RSV-confirmed LRTD is as follows: Presence of at least one RSV-positive swab detected by RT-PCR.

Time frame: From Day 15 post-vaccination up to end of season 1 in the Northern Hemisphere (NH) [a median of approximately 6.7 months (6.9 months in NH and 3.5 months in Southern Hemisphere [SH])]

Population: Analysis was performed on the modified Exposed Set (mES), which included all participants who received at least the first dose of the study intervention and who do not report an RSV-confirmed Acute Respiratory Illness (ARI) prior to 2 weeks (\<Day 15) after each vaccination (mES-RSV set). Only participants with data available at specified timepoints were included in analysis.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated Lower Respiratory Tract Disease (LRTD) During the First Season Following a Single Dose of the RSVPreF3 OA Vaccine7 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated Lower Respiratory Tract Disease (LRTD) During the First Season Following a Single Dose of the RSVPreF3 OA Vaccine40 Participants
Comparison: To demonstrate the vaccine efficacy (VE) efficacy of a single dose of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD during the first season in adults ≥ 60 YOA96.95% CI: [57.89, 94.08]Poisson regression method
Secondary

Duration in Days of RT-PCR Confirmed RSV A and/or B ARI and LRTD Episodes

The duration in days of RT-PCR confirmed RSV A and/or B ARI and LRTD episodes are described.

Time frame: From Day 15 post first dose to end of Season 1, from 15 days post-second dose administration to end of Season 2, and from start to end of Season 3 [all seasons summing approximately 3 years in NH and 2.5-3 years in SH]

Population: Analysis was performed on the mES-RSV. Only participants with data available at specified timepoints were included in analysis.

ArmMeasureGroupValue (MEDIAN)
RSVPreF3 GroupDuration in Days of RT-PCR Confirmed RSV A and/or B ARI and LRTD EpisodesRT-PCR-confirmed RSV LRTD, Season 115.5 Days
RSVPreF3 GroupDuration in Days of RT-PCR Confirmed RSV A and/or B ARI and LRTD EpisodesRT-PCR-confirmed RSV ARI, Season 112.0 Days
Placebo GroupDuration in Days of RT-PCR Confirmed RSV A and/or B ARI and LRTD EpisodesRT-PCR-confirmed RSV LRTD, Season 120.0 Days
Placebo GroupDuration in Days of RT-PCR Confirmed RSV A and/or B ARI and LRTD EpisodesRT-PCR-confirmed RSV LRTD, Season 317.5 Days
Placebo GroupDuration in Days of RT-PCR Confirmed RSV A and/or B ARI and LRTD EpisodesRT-PCR-confirmed RSV ARI, Season 115.0 Days
Placebo GroupDuration in Days of RT-PCR Confirmed RSV A and/or B ARI and LRTD EpisodesRT-PCR-confirmed RSV ARI, Season 216.0 Days
Placebo GroupDuration in Days of RT-PCR Confirmed RSV A and/or B ARI and LRTD EpisodesRT-PCR-confirmed RSV LRTD, Season 216.0 Days
Placebo GroupDuration in Days of RT-PCR Confirmed RSV A and/or B ARI and LRTD EpisodesRT-PCR-confirmed RSV ARI, Season 316.0 Days
RSV_1_dose GroupDuration in Days of RT-PCR Confirmed RSV A and/or B ARI and LRTD EpisodesRT-PCR-confirmed RSV LRTD, Season 316.5 Days
RSV_1_dose GroupDuration in Days of RT-PCR Confirmed RSV A and/or B ARI and LRTD EpisodesRT-PCR-confirmed RSV LRTD, Season 217.0 Days
RSV_1_dose GroupDuration in Days of RT-PCR Confirmed RSV A and/or B ARI and LRTD EpisodesRT-PCR-confirmed RSV ARI, Season 316.0 Days
RSV_1_dose GroupDuration in Days of RT-PCR Confirmed RSV A and/or B ARI and LRTD EpisodesRT-PCR-confirmed RSV ARI, Season 214.0 Days
RSV_annual GroupDuration in Days of RT-PCR Confirmed RSV A and/or B ARI and LRTD EpisodesRT-PCR-confirmed RSV ARI, Season 213.0 Days
RSV_annual GroupDuration in Days of RT-PCR Confirmed RSV A and/or B ARI and LRTD EpisodesRT-PCR-confirmed RSV ARI, Season 310.0 Days
RSV_annual GroupDuration in Days of RT-PCR Confirmed RSV A and/or B ARI and LRTD EpisodesRT-PCR-confirmed RSV LRTD, Season 214.0 Days
RSV_annual GroupDuration in Days of RT-PCR Confirmed RSV A and/or B ARI and LRTD EpisodesRT-PCR-confirmed RSV LRTD, Season 312.0 Days
Secondary

EuroQol 5-dimension Health Questionnaire (EQ-5D) Utility Score for Participants With RT-PCR-confirmed RSV A and/or B-associated ARI Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses

The EQ-5D is a general health utility questionnaire with health states, defined through 5 dimensions- mobility, self-care, usual activities, pain/ discomfort and anxiety/ depression. A participant who responds 1 (no problem/no symptom) to all 5 items has a profile 11111 and similarly a participant who responds 3 (the highest level of difficulty or symptom) to all items has a profile 33333. The health states indicated in these 5 dimensions are converted and presented as a single mean index value as recommended by EuroQol group, where values range from 0 (worst) to 1 (full health).

Time frame: At the ARI visit (assessed from Day 15 post first vaccination dose until end of study- approximately 3 years in NH and 2.5-3 years in SH)

Population: Analysis was performed on the mES-RSV. Only participants with data available at specified timepoints were included in analysis. For single dose evaluation, participants from the RSV\_annual group who received RSVPreF3 OA investigational vaccine at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2. For annual dose evaluation, participants from the RSV\_1\_dose group who received Placebo at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
RSVPreF3 GroupEuroQol 5-dimension Health Questionnaire (EQ-5D) Utility Score for Participants With RT-PCR-confirmed RSV A and/or B-associated ARI Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesAt ARI visit (Single dose)0.8164 Scores on a scaleStandard Error 0.0258
RSVPreF3 GroupEuroQol 5-dimension Health Questionnaire (EQ-5D) Utility Score for Participants With RT-PCR-confirmed RSV A and/or B-associated ARI Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesAt ARI visit (Annual revaccination)0.8377 Scores on a scaleStandard Error 0.0259
Placebo GroupEuroQol 5-dimension Health Questionnaire (EQ-5D) Utility Score for Participants With RT-PCR-confirmed RSV A and/or B-associated ARI Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesAt ARI visit (Annual revaccination)0.7966 Scores on a scaleStandard Error 0.0197
Placebo GroupEuroQol 5-dimension Health Questionnaire (EQ-5D) Utility Score for Participants With RT-PCR-confirmed RSV A and/or B-associated ARI Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesAt ARI visit (Single dose)0.7886 Scores on a scaleStandard Error 0.0197
Secondary

Least Square Mean Flu-PRO Total Score for the Participants With RT-PCR-confirmed RSV A and/or B-associated ARI Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses

The Flu-PRO questionnaire version 2.0 is a 32 items daily diary, which assesses influenza signs across 6 body systems- nose, throat, eyes, chest/respiratory, gastrointestinal and body/systemic. The FLU-PRO total score was computed as the mean score across all 32 items of the questionaire for all 6 body systems, with the total scores ranging from 0 (symptom free) to 4 (very severe symptoms).

Time frame: During the first 7 days from the onset of ARI symptoms (assessed from Day 15 post first vaccination dose until end of study [approximately 3 years in NH and 2.5-3 years in SH])

Population: Analysis was performed on the mES-RSV. Only participants with data available at specified timepoints were included in analysis. For single dose evaluation, participants from the RSV\_annual group who received RSVPreF3 OA investigational vaccine at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2. For annual dose evaluation, participants from the RSV\_1\_dose group who received Placebo at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
RSVPreF3 GroupLeast Square Mean Flu-PRO Total Score for the Participants With RT-PCR-confirmed RSV A and/or B-associated ARI Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesDay 1 to Day 7 (Single dose)0.85 Scores on a scaleStandard Error 0.07
RSVPreF3 GroupLeast Square Mean Flu-PRO Total Score for the Participants With RT-PCR-confirmed RSV A and/or B-associated ARI Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesDay 1 to Day 7 (Annual revaccination)0.81 Scores on a scaleStandard Error 0.07
Placebo GroupLeast Square Mean Flu-PRO Total Score for the Participants With RT-PCR-confirmed RSV A and/or B-associated ARI Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesDay 1 to Day 7 (Single dose)0.92 Scores on a scaleStandard Error 0.06
Placebo GroupLeast Square Mean Flu-PRO Total Score for the Participants With RT-PCR-confirmed RSV A and/or B-associated ARI Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesDay 1 to Day 7 (Annual revaccination)0.90 Scores on a scaleStandard Error 0.06
Secondary

Least Square Mean of Short Form-12 (SF-12) Health Survey for Participants With RT-PCR Confirmed RSV A and/or B-associated ARI Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses

SF-12 is a health survey with 12 questions, covering 8 domains- physical functioning, role physical, bodily pain, general health, vitality, social functioning, role emotional and mental health. Summary scores are computed from these domains for the physical and mental component. The total score of the SF-12 questionnaire is evaluated on a scale from 0 to 100, with a higher score indicating a better perceived health-related quality of life.

Time frame: At the ARI visit (assessed from one-month post first vaccination dose until end of study- approximately 3 years in NH and 2.5-3 years in SH)

Population: Analysis was performed on the mES-RSV. Only participants with data available at specified timepoints were included in analysis. For single dose evaluation, participants from the RSV\_annual group who received RSVPreF3 OA investigational vaccine at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2. For annual dose evaluation, participants from the RSV\_1\_dose group who received Placebo at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
RSVPreF3 GroupLeast Square Mean of Short Form-12 (SF-12) Health Survey for Participants With RT-PCR Confirmed RSV A and/or B-associated ARI Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesAt ARI visit (Single dose)59.43 Scores on a scaleStandard Error 4.07
RSVPreF3 GroupLeast Square Mean of Short Form-12 (SF-12) Health Survey for Participants With RT-PCR Confirmed RSV A and/or B-associated ARI Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesAt ARI visit (Annual revaccination)63.65 Scores on a scaleStandard Error 4.15
Placebo GroupLeast Square Mean of Short Form-12 (SF-12) Health Survey for Participants With RT-PCR Confirmed RSV A and/or B-associated ARI Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesAt ARI visit (Single dose)57.51 Scores on a scaleStandard Error 3.15
Placebo GroupLeast Square Mean of Short Form-12 (SF-12) Health Survey for Participants With RT-PCR Confirmed RSV A and/or B-associated ARI Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesAt ARI visit (Annual revaccination)59.02 Scores on a scaleStandard Error 3.18
Secondary

Maximum Influenza Patient-Reported Outcome (Flu-PRO) Chest Score for the Participants With RT-PCR-confirmed RSV A and/or B-associated ARI Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses

For this outcome measure, the Health Related -Quality of life (HR-QOL) score is measured by Flu-PRO questionnaire version 2.0. The Flu-PRO is a 32 items daily diary, which assesses influenza signs across 6 body systems- nose, throat, eyes, chest/respiratory, gastrointestinal and body/systemic. The objective of this outcome measure was to present data only for chest/respiratory system after a single dose and after annual revaccination. The FLU-PRO score was computed as the mean score across questionaire items for chest/respiratory body system, with the scores ranging from 0 (symptom free) to 4 (very severe symptoms).

Time frame: During the first 7 days from the onset of ARI symptoms (assessed from Day 15 post first vaccination dose until end of study [approximately 3 years in NH and 2.5-3 years in SH])

Population: Analysis was performed on the mES-RSV. Only participants with data available at specified timepoints were included in analysis. For single dose evaluation, participants from the RSV\_annual group who received RSVPreF3 OA investigational vaccine at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2. For annual dose evaluation, participants from the RSV\_1\_dose group who received Placebo at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2.

ArmMeasureGroupValue (MEAN)Dispersion
RSVPreF3 GroupMaximum Influenza Patient-Reported Outcome (Flu-PRO) Chest Score for the Participants With RT-PCR-confirmed RSV A and/or B-associated ARI Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesChest / Respiratory (Single dose)1.60 Scores on a scaleStandard Deviation 0.89
RSVPreF3 GroupMaximum Influenza Patient-Reported Outcome (Flu-PRO) Chest Score for the Participants With RT-PCR-confirmed RSV A and/or B-associated ARI Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesChest / Respiratory (Annual revaccination)1.50 Scores on a scaleStandard Deviation 0.87
Placebo GroupMaximum Influenza Patient-Reported Outcome (Flu-PRO) Chest Score for the Participants With RT-PCR-confirmed RSV A and/or B-associated ARI Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesChest / Respiratory (Single dose)1.97 Scores on a scaleStandard Deviation 0.88
Placebo GroupMaximum Influenza Patient-Reported Outcome (Flu-PRO) Chest Score for the Participants With RT-PCR-confirmed RSV A and/or B-associated ARI Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesChest / Respiratory (Annual revaccination)1.96 Scores on a scaleStandard Deviation 0.89
Secondary

Number of Complications Related to Any ARI During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of Study

RSV infection was confirmed by RT-PCR.

Time frame: From Day 15 post-first vaccination up to study end (approximately 3 years for NH and 2.5-3 years for SH)

Population: Analysis was performed on the mES-RSV. Only participants with data available at specified timepoints were included in analysis. For single dose evaluation, participants from the RSV\_annual group who received RSVPreF3 OA investigational vaccine at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2. For annual dose evaluation, participants from the RSV\_1\_dose group who received Placebo at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
RSVPreF3 GroupNumber of Complications Related to Any ARI During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyComplications related to any ARI (Single dose), during season438 Participants
RSVPreF3 GroupNumber of Complications Related to Any ARI During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyComplications related to any ARI (Single dose), up to end of study620 Participants
RSVPreF3 GroupNumber of Complications Related to Any ARI During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyComplications related to any ARI (Annual revaccination), up to end of study579 Participants
RSVPreF3 GroupNumber of Complications Related to Any ARI During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyComplications related to any ARI (Annual revaccination), during season417 Participants
Placebo GroupNumber of Complications Related to Any ARI During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyComplications related to any ARI (Annual revaccination), up to end of study823 Participants
Placebo GroupNumber of Complications Related to Any ARI During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyComplications related to any ARI (Annual revaccination), during season660 Participants
Placebo GroupNumber of Complications Related to Any ARI During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyComplications related to any ARI (Single dose), during season695 Participants
Placebo GroupNumber of Complications Related to Any ARI During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyComplications related to any ARI (Single dose), up to end of study863 Participants
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of complications related to any ARI during the study period in adults ≥ 60 YOA, following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [-8.29, 12.42]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of complications related to any ARI during the study period in adults ≥ 60 YOA, following annual revaccination of the RSVPreF3 OA investigational vaccine.95% CI: [-4.05, 16.39]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of complications related to any ARI during the RSV seasons in adults ≥ 60 YOA, following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [-0.68, 21.31]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of complications related to any ARI during the RSV seasons in adults ≥ 60 YOA, following annual revaccination of the RSVPreF3 OA investigational vaccine.95% CI: [0.32, 22.58]Poisson regression method
Secondary

Number of Complications Related to RSV-confirmed ARI During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of Study

RSV infection was confirmed by RT-PCR.

Time frame: From Day 15 post-first vaccination up to study end (approximately 3 years for NH and 2.5-3 years for SH)

Population: Analysis was performed on the mES-RSV. Only participants with data available at specified timepoints were included in analysis. For single dose evaluation, participants from the RSV\_annual group who received RSVPreF3 OA investigational vaccine at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2. For annual dose evaluation, participants from the RSV\_1\_dose group who received Placebo at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
RSVPreF3 GroupNumber of Complications Related to RSV-confirmed ARI During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyRelated to RT-PCR-confirmed RSV ARI (Single dose), up to end of study12 Participants
RSVPreF3 GroupNumber of Complications Related to RSV-confirmed ARI During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyRelated to RT-PCR-confirmed RSV ARI (Annual revaccination), up to end of study11 Participants
RSVPreF3 GroupNumber of Complications Related to RSV-confirmed ARI During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyRelated to RT-PCR-confirmed RSV ARI (Single dose), during season9 Participants
RSVPreF3 GroupNumber of Complications Related to RSV-confirmed ARI During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyRelated to RT-PCR-confirmed RSV ARI (Annual revaccination), during season9 Participants
Placebo GroupNumber of Complications Related to RSV-confirmed ARI During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyRelated to RT-PCR-confirmed RSV ARI (Annual revaccination), during season39 Participants
Placebo GroupNumber of Complications Related to RSV-confirmed ARI During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyRelated to RT-PCR-confirmed RSV ARI (Single dose), up to end of study50 Participants
Placebo GroupNumber of Complications Related to RSV-confirmed ARI During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyRelated to RT-PCR-confirmed RSV ARI (Single dose), during season43 Participants
Placebo GroupNumber of Complications Related to RSV-confirmed ARI During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyRelated to RT-PCR-confirmed RSV ARI (Annual revaccination), up to end of study46 Participants
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of complications related to RSV- ARI during the study period in adults ≥ 60 YOA, following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [28.91, 82.15]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of complications related to RSV-ARI during the study period in adults ≥ 60 YOA, following annual revaccination of the RSVPreF3 OA investigational vaccine.95% CI: [28.5, 83.2]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of complications related to RSV- ARI during the RSV seasons in adults ≥ 60 YOA, following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [28.56, 85.47]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of complications related to RSV-ARI during the RSV seasons in adults ≥ 60 YOA, following annual revaccination of the RSVPreF3 OA investigational vaccine.95% CI: [21.45, 84.29]Poisson regression method
Secondary

Number of Days With Solicited Administration Site Adverse Events

Time frame: During the 4-day follow up period after first vaccination (Day 1), second vaccination (administered pre-season 2) and after the third vaccination (administered pre-season 3 -only applicable for participants in NH])

Population: Analysis was performed on a subset of participants from the solicited safety set (SSS), which included participants who received at least the first dose of the study intervention and with the solicited administration site events diary card data available after the corresponding vaccination for the specified duration. Only participants with data available at specified timepoints were included in analysis. Analysis is presented dose-wise after first dose administration and annual revaccinations.

ArmMeasureGroupValue (MEDIAN)
RSVPreF3 GroupNumber of Days With Solicited Administration Site Adverse EventsPain, Dose 11.0 Days
RSVPreF3 GroupNumber of Days With Solicited Administration Site Adverse EventsSwelling, Dose 22.0 Days
RSVPreF3 GroupNumber of Days With Solicited Administration Site Adverse EventsErythema, Dose 14.0 Days
RSVPreF3 GroupNumber of Days With Solicited Administration Site Adverse EventsPain, Dose 21.0 Days
RSVPreF3 GroupNumber of Days With Solicited Administration Site Adverse EventsErythema, Dose 24.0 Days
RSVPreF3 GroupNumber of Days With Solicited Administration Site Adverse EventsSwelling, Dose 14.0 Days
RSVPreF3 GroupNumber of Days With Solicited Administration Site Adverse EventsPain, Dose 3 (NH)2.0 Days
Placebo GroupNumber of Days With Solicited Administration Site Adverse EventsPain, Dose 21.0 Days
Placebo GroupNumber of Days With Solicited Administration Site Adverse EventsErythema, Dose 22.0 Days
Placebo GroupNumber of Days With Solicited Administration Site Adverse EventsErythema, Dose 13.0 Days
Placebo GroupNumber of Days With Solicited Administration Site Adverse EventsPain, Dose 12.0 Days
Placebo GroupNumber of Days With Solicited Administration Site Adverse EventsPain, Dose 3 (NH)1.0 Days
Placebo GroupNumber of Days With Solicited Administration Site Adverse EventsSwelling, Dose 13.0 Days
Placebo GroupNumber of Days With Solicited Administration Site Adverse EventsSwelling, Dose 3 (NH)49.0 Days
RSV_1_dose GroupNumber of Days With Solicited Administration Site Adverse EventsSwelling, Dose 23.0 Days
RSV_1_dose GroupNumber of Days With Solicited Administration Site Adverse EventsPain, Dose 3 (NH)2.0 Days
RSV_1_dose GroupNumber of Days With Solicited Administration Site Adverse EventsErythema, Dose 23.0 Days
RSV_1_dose GroupNumber of Days With Solicited Administration Site Adverse EventsSwelling, Dose 3 (NH)1.5 Days
RSV_1_dose GroupNumber of Days With Solicited Administration Site Adverse EventsSwelling, Dose 13.0 Days
RSV_1_dose GroupNumber of Days With Solicited Administration Site Adverse EventsErythema, Dose 13.0 Days
RSV_1_dose GroupNumber of Days With Solicited Administration Site Adverse EventsPain, Dose 12.0 Days
RSV_1_dose GroupNumber of Days With Solicited Administration Site Adverse EventsPain, Dose 22.0 Days
RSV_1_dose GroupNumber of Days With Solicited Administration Site Adverse EventsErythema, Dose 3 (NH)3.0 Days
Secondary

Number of Days With Solicited Systemic Adverse Events

Time frame: During the 4-day follow up period after first vaccination (Day 1), second vaccination (administered pre-season 2) and after the third vaccination (administered pre-season 3 -only applicable for participants in NH])

Population: Analysis was performed on a subset of participants from the solicited safety set (SSS), which included participants who received at least the first dose of the study intervention and with the solicited systemic events diary card data available after the corresponding vaccination for the specified duration. Only participants with data available at specified timepoints were included in analysis. Analysis is presented dose-wise after first dose administration and annual revaccinations.

ArmMeasureGroupValue (MEDIAN)
RSVPreF3 GroupNumber of Days With Solicited Systemic Adverse EventsFatigue, Dose 3 (NH)1.0 Days
RSVPreF3 GroupNumber of Days With Solicited Systemic Adverse EventsArthralgia, Dose 22.0 Days
RSVPreF3 GroupNumber of Days With Solicited Systemic Adverse EventsHeadache, Dose 11.0 Days
RSVPreF3 GroupNumber of Days With Solicited Systemic Adverse EventsFever, Dose 11.0 Days
RSVPreF3 GroupNumber of Days With Solicited Systemic Adverse EventsArthralgia, Dose 12.5 Days
RSVPreF3 GroupNumber of Days With Solicited Systemic Adverse EventsFever, Dose 3 (NH)1.0 Days
RSVPreF3 GroupNumber of Days With Solicited Systemic Adverse EventsFever, Dose 22.0 Days
RSVPreF3 GroupNumber of Days With Solicited Systemic Adverse EventsMyalgia, Dose 11.5 Days
RSVPreF3 GroupNumber of Days With Solicited Systemic Adverse EventsArthralgia, Dose 3 (NH)4.0 Days
RSVPreF3 GroupNumber of Days With Solicited Systemic Adverse EventsMyalgia, Dose 3 (NH)2.0 Days
RSVPreF3 GroupNumber of Days With Solicited Systemic Adverse EventsHeadache, Dose 3 (NH)1.0 Days
RSVPreF3 GroupNumber of Days With Solicited Systemic Adverse EventsFatigue, Dose 11.0 Days
RSVPreF3 GroupNumber of Days With Solicited Systemic Adverse EventsFatigue, Dose 22.0 Days
RSVPreF3 GroupNumber of Days With Solicited Systemic Adverse EventsMyalgia, Dose 22.0 Days
RSVPreF3 GroupNumber of Days With Solicited Systemic Adverse EventsHeadache, Dose 22.0 Days
Placebo GroupNumber of Days With Solicited Systemic Adverse EventsHeadache, Dose 3 (NH)1.0 Days
Placebo GroupNumber of Days With Solicited Systemic Adverse EventsArthralgia, Dose 12.0 Days
Placebo GroupNumber of Days With Solicited Systemic Adverse EventsArthralgia, Dose 22.0 Days
Placebo GroupNumber of Days With Solicited Systemic Adverse EventsArthralgia, Dose 3 (NH)2.0 Days
Placebo GroupNumber of Days With Solicited Systemic Adverse EventsFatigue, Dose 21.5 Days
Placebo GroupNumber of Days With Solicited Systemic Adverse EventsFatigue, Dose 3 (NH)2.5 Days
Placebo GroupNumber of Days With Solicited Systemic Adverse EventsFever, Dose 11.0 Days
Placebo GroupNumber of Days With Solicited Systemic Adverse EventsFever, Dose 21.0 Days
Placebo GroupNumber of Days With Solicited Systemic Adverse EventsHeadache, Dose 11.0 Days
Placebo GroupNumber of Days With Solicited Systemic Adverse EventsHeadache, Dose 21.0 Days
Placebo GroupNumber of Days With Solicited Systemic Adverse EventsFatigue, Dose 12.0 Days
Placebo GroupNumber of Days With Solicited Systemic Adverse EventsMyalgia, Dose 12.0 Days
Placebo GroupNumber of Days With Solicited Systemic Adverse EventsMyalgia, Dose 21.5 Days
Placebo GroupNumber of Days With Solicited Systemic Adverse EventsMyalgia, Dose 3 (NH)3.0 Days
RSV_1_dose GroupNumber of Days With Solicited Systemic Adverse EventsMyalgia, Dose 3 (NH)2.0 Days
RSV_1_dose GroupNumber of Days With Solicited Systemic Adverse EventsHeadache, Dose 21.0 Days
RSV_1_dose GroupNumber of Days With Solicited Systemic Adverse EventsArthralgia, Dose 3 (NH)4.0 Days
RSV_1_dose GroupNumber of Days With Solicited Systemic Adverse EventsMyalgia, Dose 22.0 Days
RSV_1_dose GroupNumber of Days With Solicited Systemic Adverse EventsHeadache, Dose 3 (NH)2.0 Days
RSV_1_dose GroupNumber of Days With Solicited Systemic Adverse EventsArthralgia, Dose 21.0 Days
RSV_1_dose GroupNumber of Days With Solicited Systemic Adverse EventsFatigue, Dose 12.0 Days
RSV_1_dose GroupNumber of Days With Solicited Systemic Adverse EventsMyalgia, Dose 12.0 Days
RSV_1_dose GroupNumber of Days With Solicited Systemic Adverse EventsFever, Dose 21.0 Days
RSV_1_dose GroupNumber of Days With Solicited Systemic Adverse EventsFever, Dose 11.0 Days
RSV_1_dose GroupNumber of Days With Solicited Systemic Adverse EventsFatigue, Dose 3 (NH)2.0 Days
RSV_1_dose GroupNumber of Days With Solicited Systemic Adverse EventsArthralgia, Dose 12.0 Days
RSV_1_dose GroupNumber of Days With Solicited Systemic Adverse EventsHeadache, Dose 11.0 Days
RSV_1_dose GroupNumber of Days With Solicited Systemic Adverse EventsFatigue, Dose 22.0 Days
Secondary

Number of Hospitalizations Due to Any Respiratory Diseases or Due to a Complication Related to Any Respiratory Diseases, During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of Study

A diagnosis of respiratory disease included: acute respiratory infections, other diseases of upper respiratory tract, pneumonia and influenza, chronic obstructive pulmonary disease and allied conditions, pneumoconioses and other lung diseases due to external agents, other diseases of respiratory system.

Time frame: From Day 15 post-first vaccination up to study end (approximately 3 years for NH and 2.5-3 years for SH)

Population: Analysis was performed on the mES-RSV. Only participants with data available at specified timepoints were included in analysis. For single dose evaluation, participants from the RSV\_annual group who received RSVPreF3 OA investigational vaccine at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2. For annual dose evaluation, participants from the RSV\_1\_dose group who received Placebo at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
RSVPreF3 GroupNumber of Hospitalizations Due to Any Respiratory Diseases or Due to a Complication Related to Any Respiratory Diseases, During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyAny respiratory disease or related complication (Annual revaccination), during seasons119 Participants
RSVPreF3 GroupNumber of Hospitalizations Due to Any Respiratory Diseases or Due to a Complication Related to Any Respiratory Diseases, During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyAny respiratory disease (Single dose), up to end of study167 Participants
RSVPreF3 GroupNumber of Hospitalizations Due to Any Respiratory Diseases or Due to a Complication Related to Any Respiratory Diseases, During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyAny respiratory disease (Annual revaccination), up to end of study163 Participants
RSVPreF3 GroupNumber of Hospitalizations Due to Any Respiratory Diseases or Due to a Complication Related to Any Respiratory Diseases, During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyAny respiratory disease or related complication (Single dose), up to end of study179 Participants
RSVPreF3 GroupNumber of Hospitalizations Due to Any Respiratory Diseases or Due to a Complication Related to Any Respiratory Diseases, During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyAny respiratory disease (Single dose), during seasons121 Participants
RSVPreF3 GroupNumber of Hospitalizations Due to Any Respiratory Diseases or Due to a Complication Related to Any Respiratory Diseases, During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyAny respiratory disease (Annual revaccination), during seasons114 Participants
RSVPreF3 GroupNumber of Hospitalizations Due to Any Respiratory Diseases or Due to a Complication Related to Any Respiratory Diseases, During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyAny respiratory disease or related complication (Annual revaccination), up to end of study171 Participants
RSVPreF3 GroupNumber of Hospitalizations Due to Any Respiratory Diseases or Due to a Complication Related to Any Respiratory Diseases, During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyAny respiratory disease or related complication (Single dose), during seasons131 Participants
Placebo GroupNumber of Hospitalizations Due to Any Respiratory Diseases or Due to a Complication Related to Any Respiratory Diseases, During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyAny respiratory disease or related complication (Annual revaccination), up to end of study217 Participants
Placebo GroupNumber of Hospitalizations Due to Any Respiratory Diseases or Due to a Complication Related to Any Respiratory Diseases, During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyAny respiratory disease (Annual revaccination), during seasons163 Participants
Placebo GroupNumber of Hospitalizations Due to Any Respiratory Diseases or Due to a Complication Related to Any Respiratory Diseases, During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyAny respiratory disease (Single dose), during seasons174 Participants
Placebo GroupNumber of Hospitalizations Due to Any Respiratory Diseases or Due to a Complication Related to Any Respiratory Diseases, During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyAny respiratory disease or related complication (Annual revaccination), during seasons169 Participants
Placebo GroupNumber of Hospitalizations Due to Any Respiratory Diseases or Due to a Complication Related to Any Respiratory Diseases, During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyAny respiratory disease (Single dose), up to end of study221 Participants
Placebo GroupNumber of Hospitalizations Due to Any Respiratory Diseases or Due to a Complication Related to Any Respiratory Diseases, During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyAny respiratory disease or related complication (Single dose), up to end of study230 Participants
Placebo GroupNumber of Hospitalizations Due to Any Respiratory Diseases or Due to a Complication Related to Any Respiratory Diseases, During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyAny respiratory disease (Annual revaccination), up to end of study208 Participants
Placebo GroupNumber of Hospitalizations Due to Any Respiratory Diseases or Due to a Complication Related to Any Respiratory Diseases, During the RSV Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyAny respiratory disease or related complication (Single dose), during seasons180 Participants
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of hospitalization due to any respiratory diseases during the study period in adults ≥ 60 YOA, following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [-25.43, 17.49]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of hospitalization due to any respiratory diseases or complication related to any respiratory disease during the study period in adults ≥ 60 YOA, following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [-28.26, 14.61]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of hospitalization due to any respiratory diseases during the study period in adults ≥ 60 YOA, following annual revaccination of the RSVPreF3 OA investigational vaccine95% CI: [-28.2, 16.38]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of hospitalization due to any respiratory diseases or complication related to any respiratory diseases during the study period in adults ≥ 60 YOA, following annual revaccination of the RSVPreF3 OA investigational vaccine.95% CI: [-27.55, 15.98]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of hospitalization due to any respiratory diseases during the RSV season in adults ≥ 60 YOA, following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [-23.52, 23.99]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of hospitalization due to any respiratory diseases or complication related to any respiratory disease during the RSV seasons in adults ≥ 60 YOA, following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [-28.56, 19.7]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of hospitalization due to any respiratory diseases during the RSV seasons in adults ≥ 60 YOA, following annual revaccination of the RSVPreF3 OA investigational vaccine.95% CI: [-22.14, 26]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of hospitalization due to any respiratory diseases or complication related to any respiratory diseases during the RSV seasons in adults ≥ 60 YOA, following annual revaccination of the RSVPreF3 OA investigational vaccine.95% CI: [-21.73, 25.48]Poisson regression method
Secondary

Number of Hospitalizations Due to RSV-confirmed Respiratory Diseases or Due to Complication Related to RSV-confirmed Respiratory Diseases, Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of Study

RSV infection was confirmed by RT-PCR.

Time frame: From Day 15 post-first vaccination up to study end (approximately 3 years for NH and 2.5-3 years for SH)

Population: Analysis was performed on the mES-RSV. Only participants with data available at specified timepoints were included in analysis. For single dose evaluation, participants from the RSV\_annual group who received RSVPreF3 OA investigational vaccine at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2. For annual dose evaluation, participants from the RSV\_1\_dose group who received Placebo at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
RSVPreF3 GroupNumber of Hospitalizations Due to RSV-confirmed Respiratory Diseases or Due to Complication Related to RSV-confirmed Respiratory Diseases, Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyRSV respiratory disease (Single dose), during season2 Participants
RSVPreF3 GroupNumber of Hospitalizations Due to RSV-confirmed Respiratory Diseases or Due to Complication Related to RSV-confirmed Respiratory Diseases, Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyRSV respiratory disease (Single dose), up to end of study2 Participants
RSVPreF3 GroupNumber of Hospitalizations Due to RSV-confirmed Respiratory Diseases or Due to Complication Related to RSV-confirmed Respiratory Diseases, Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyRSV respiratory disease (Annual revaccination),during season0 Participants
RSVPreF3 GroupNumber of Hospitalizations Due to RSV-confirmed Respiratory Diseases or Due to Complication Related to RSV-confirmed Respiratory Diseases, Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyRSV respiratory disease or related complication (Single dose), up to end of study2 Participants
RSVPreF3 GroupNumber of Hospitalizations Due to RSV-confirmed Respiratory Diseases or Due to Complication Related to RSV-confirmed Respiratory Diseases, Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyRSV respiratory disease or related complication (Single dose), during season2 Participants
RSVPreF3 GroupNumber of Hospitalizations Due to RSV-confirmed Respiratory Diseases or Due to Complication Related to RSV-confirmed Respiratory Diseases, Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyRSV respiratory disease (Annual revaccination), up to end of study0 Participants
RSVPreF3 GroupNumber of Hospitalizations Due to RSV-confirmed Respiratory Diseases or Due to Complication Related to RSV-confirmed Respiratory Diseases, Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyRSV respiratory disease or related complication (Annual revaccination), during season0 Participants
RSVPreF3 GroupNumber of Hospitalizations Due to RSV-confirmed Respiratory Diseases or Due to Complication Related to RSV-confirmed Respiratory Diseases, Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyRSV respiratory disease or related complication (Annual revaccination), up to end of study0 Participants
Placebo GroupNumber of Hospitalizations Due to RSV-confirmed Respiratory Diseases or Due to Complication Related to RSV-confirmed Respiratory Diseases, Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyRSV respiratory disease or related complication (Annual revaccination), during season4 Participants
Placebo GroupNumber of Hospitalizations Due to RSV-confirmed Respiratory Diseases or Due to Complication Related to RSV-confirmed Respiratory Diseases, Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyRSV respiratory disease (Single dose), during season4 Participants
Placebo GroupNumber of Hospitalizations Due to RSV-confirmed Respiratory Diseases or Due to Complication Related to RSV-confirmed Respiratory Diseases, Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyRSV respiratory disease or related complication (Single dose), during season4 Participants
Placebo GroupNumber of Hospitalizations Due to RSV-confirmed Respiratory Diseases or Due to Complication Related to RSV-confirmed Respiratory Diseases, Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyRSV respiratory disease (Annual revaccination),during season4 Participants
Placebo GroupNumber of Hospitalizations Due to RSV-confirmed Respiratory Diseases or Due to Complication Related to RSV-confirmed Respiratory Diseases, Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyRSV respiratory disease or related complication (Annual revaccination), up to end of study6 Participants
Placebo GroupNumber of Hospitalizations Due to RSV-confirmed Respiratory Diseases or Due to Complication Related to RSV-confirmed Respiratory Diseases, Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyRSV respiratory disease (Single dose), up to end of study6 Participants
Placebo GroupNumber of Hospitalizations Due to RSV-confirmed Respiratory Diseases or Due to Complication Related to RSV-confirmed Respiratory Diseases, Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyRSV respiratory disease or related complication (Single dose), up to end of study6 Participants
Placebo GroupNumber of Hospitalizations Due to RSV-confirmed Respiratory Diseases or Due to Complication Related to RSV-confirmed Respiratory Diseases, Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses up to End of StudyRSV respiratory disease (Annual revaccination), up to end of study6 Participants
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of hospitalization due to RT-PCR-confirmed RSV respiratory disease during the study period in adults ≥ 60 YOA, following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [-184.45, 95.19]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of hospitalization due to RT-PCR-confirmed RSV respiratory disease or complication related to RT-PCR-confirmed RSV ARI during the study period in adults ≥ 60 YOA, following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [-184.45, 95.19]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of hospitalization due to RT-PCR-confirmed RSV respiratory disease during the study period in adults ≥ 60 YOA, following annual revaccination of the RSVPreF3 OA investigational vaccine.95% CI: [11.56, 100]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of hospitalization due to RT-PCR-confirmed RSV respiratory disease or complication related to RT-PCR-confirmed RSV ARI during the study period in adults ≥ 60 YOA, following annual revaccination of the RSVPreF3 OA investigational vaccine.95% CI: [11.56, 100]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of hospitalization due to RT-PCR-confirmed RSV respiratory disease during the RSV seson in adults ≥ 60 YOA, following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [-457.67, 93.12]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of hospitalization due to RT-PCR-confirmed RSV respiratory disease or complication related to RT-PCR-confirmed RSV ARI during the RSV season in adults ≥ 60 YOA, following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [-457.67, 93.12]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of hospitalization due to RT-PCR-confirmed RSV respiratory disease during the RSV season in adults ≥ 60 YOA, following annual revaccination of the RSVPreF3 OA investigational vaccine.95% CI: [-54.53, 100]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of hospitalization due to RT-PCR-confirmed RSV respiratory disease or complication related to RT-PCR-confirmed RSV ARI during the RSV season in adults ≥ 60 YOA, following annual revaccination of the RSVPreF3 OA investigational vaccine.95% CI: [-54.53, 100]Poisson regression method
Secondary

Number of Participants With Any and Grade 3 Solicited Administration Site Adverse Events

Any solicited event is defined as the occurrence of any solicited adverse event (AE) regardless of intensity grade or relation to study vaccination. Grade 3 = an event which prevented normal, everyday activities. The assessed administration site events include pain, erythema and swelling.

Time frame: During the 4-day follow up period after first vaccination (Day 1), second vaccination (administered pre-season 2) and after the third vaccination (administered pre-season 3 -only applicable for participants in NH])

Population: Analysis was performed on a subset of participants from the solicited safety set (SSS), which included participants who received at least the first dose of the study intervention and with the solicited administration site events diary card data available after the corresponding vaccination for the specified duration. Only participants with data available at specified timepoints were included in analysis. Analysis is presented dose-wise after first dose administration and annual revaccinations.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsSwelling, Dose 2, Grade 30 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsPain, Dose 2, Grade 30 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsErythema, Dose 3 (NH), Any0 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsErythema, Dose 2, Any1 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsPain, Dose 2, Any51 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsErythema, Dose 3 (NH), Grade 30 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsSwelling, Dose 2, Any2 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsPain, Dose 1, Any81 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsPain, Dose 1, Grade 30 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsSwelling, Dose 3 (NH), Any0 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsSwelling, Dose 1, Grade 30 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsErythema, Dose 1, Any10 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsSwelling, Dose 1, Any7 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsErythema, Dose 1, Grade 30 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsPain, Dose 3 (NH), Grade 30 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsSwelling, Dose 3 (NH), Grade 30 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsPain, Dose 3 (NH), Any7 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsErythema , Dose 2, Grade 30 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsSwelling, Dose 3 (NH), Grade 30 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsErythema, Dose 1, Grade 30 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsPain, Dose 2, Grade 30 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsSwelling, Dose 2, Any0 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsErythema, Dose 2, Any1 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsErythema , Dose 2, Grade 30 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsErythema, Dose 3 (NH), Any0 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsErythema, Dose 3 (NH), Grade 30 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsPain, Dose 1, Any267 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsPain, Dose 1, Grade 36 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsPain, Dose 2, Any30 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsPain, Dose 3 (NH), Any3 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsPain, Dose 3 (NH), Grade 30 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsSwelling, Dose 1, Any25 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsSwelling, Dose 1, Grade 30 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsSwelling, Dose 2, Grade 30 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsSwelling, Dose 3 (NH), Any1 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsErythema, Dose 1, Any41 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsPain, Dose 3 (NH), Any25 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsErythema, Dose 1, Grade 32 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsSwelling, Dose 3 (NH), Any2 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsErythema, Dose 1, Any30 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsSwelling, Dose 2, Grade 36 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsSwelling, Dose 1, Any28 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsSwelling, Dose 3 (NH), Grade 30 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsPain, Dose 1, Grade 33 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsErythema, Dose 3 (NH), Grade 31 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsSwelling, Dose 1, Grade 32 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsPain, Dose 1, Any268 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsPain, Dose 3 (NH), Grade 30 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsErythema, Dose 3 (NH), Any2 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsSwelling, Dose 2, Any23 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsErythema , Dose 2, Grade 33 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsPain, Dose 2, Grade 32 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsErythema, Dose 2, Any31 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Administration Site Adverse EventsPain, Dose 2, Any169 Participants
Secondary

Number of Participants With Any and Grade 3 Solicited Systemic Adverse Events

Any solicited event is defined as the occurrence of any solicited adverse event (AE) regardless of intensity grade or relation to study vaccination. Grade 3 = an event which prevented normal, everyday activities. The assessed solicited systemic events include arthralgia, fatigue, fever, headache and myalgia. Fever is defined as a temperature ≥ 38.0°C by any route. Grade 3 fever is defined as temperature \>39°C by any route.

Time frame: During the 4-day follow up period after first vaccination (Day 1), second vaccination (administered pre-season 2) and after the third vaccination (administered pre-season 3 -only applicable for participants in NH])

Population: Analysis was performed on a subset of participants from the solicited safety set (SSS), which included participants who received at least the first dose of the study intervention and with the solicited systemic events diary card data available after the corresponding vaccination for the specified duration. Only participants with data available at specified timepoints were included in analysis. Analysis is presented dose-wise after first dose administration and annual revaccinations.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsArthralgia, Dose 1, Grade 35 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsHeadache, Dose 2, Any60 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsArthralgia, Dose 2, Any48 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsHeadache, Dose 1, Any111 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsArthralgia, Dose 2, Grade 32 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsFatigue, Dose 3 (NH), Any12 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsFever, Dose 3 (NH), Grade 30 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsArthralgia, Dose 3 (NH), Any5 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsFatigue, Dose 2, Grade 37 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsFever, Dose 3 (NH), Any1 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsArthralgia, Dose 3 (NH), Grade 30 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsFatigue, Dose 2, Any80 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsFatigue, Dose 1, Any141 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsMyalgia, Dose 3 (NH), Any5 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsMyalgia, Dose 1, Grade 33 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsFatigue, Dose 1, Grade 34 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsMyalgia, Dose 3 (NH), Grade 30 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsMyalgia, Dose 2, Grade 33 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsHeadache, Dose 3 (NH), Grade 30 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsFever, Dose 1, Any3 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsFatigue, Dose 3 (NH), Grade 30 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsHeadache, Dose 3 (NH), Any9 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsFever, Dose 1, Grade 31 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsMyalgia, Dose 2, Any52 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsHeadache, Dose 2, Grade 34 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsFever, Dose 2, Any4 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsFever, Dose 2, Grade 32 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsArthralgia, Dose 1, Any56 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsMyalgia, Dose 1, Any72 Participants
RSVPreF3 GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsHeadache, Dose 1, Grade 30 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsHeadache, Dose 3 (NH), Any6 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsArthralgia, Dose 2, Any20 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsFever, Dose 2, Any1 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsFever, Dose 3 (NH), Any0 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsHeadache, Dose 3 (NH), Grade 30 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsFatigue, Dose 3 (NH), Grade 31 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsFever, Dose 1, Any14 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsFever, Dose 1, Grade 31 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsArthralgia, Dose 1, Any74 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsArthralgia, Dose 1, Grade 35 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsArthralgia, Dose 2, Grade 30 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsArthralgia, Dose 3 (NH), Any2 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsArthralgia, Dose 3 (NH), Grade 30 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsFatigue, Dose 1, Any143 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsFever, Dose 2, Grade 30 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsFever, Dose 3 (NH), Grade 30 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsHeadache, Dose 1, Any116 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsHeadache, Dose 1, Grade 36 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsHeadache, Dose 2, Any41 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsHeadache, Dose 2, Grade 31 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsFatigue, Dose 1, Grade 36 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsFatigue, Dose 2, Any44 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsFatigue, Dose 2, Grade 32 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsFatigue, Dose 3 (NH), Any8 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsMyalgia, Dose 1, Any127 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsMyalgia, Dose 1, Grade 35 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsMyalgia, Dose 2, Any20 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsMyalgia, Dose 2, Grade 30 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsMyalgia, Dose 3 (NH), Any3 Participants
Placebo GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsMyalgia, Dose 3 (NH), Grade 30 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsHeadache, Dose 2, Grade 32 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsFever, Dose 1, Any4 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsFatigue, Dose 3 (NH), Grade 30 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsMyalgia, Dose 2, Any82 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsFever, Dose 3 (NH), Any0 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsFatigue, Dose 1, Grade 39 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsHeadache, Dose 3 (NH), Any5 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsMyalgia, Dose 3 (NH), Grade 30 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsFatigue, Dose 2, Any98 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsArthralgia, Dose 1, Grade 36 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsFever, Dose 2, Any6 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsFatigue, Dose 2, Grade 33 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsHeadache, Dose 2, Any73 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsArthralgia, Dose 3 (NH), Grade 30 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsMyalgia, Dose 3 (NH), Any7 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsFatigue, Dose 1, Any153 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsHeadache, Dose 3 (NH), Grade 30 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsFever, Dose 2, Grade 30 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsArthralgia, Dose 3 (NH), Any5 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsArthralgia, Dose 2, Grade 32 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsHeadache, Dose 1, Any123 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsFever, Dose 3 (NH), Grade 30 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsArthralgia, Dose 2, Any55 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsMyalgia, Dose 2, Grade 33 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsArthralgia, Dose 1, Any84 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsMyalgia, Dose 1, Any128 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsHeadache, Dose 1, Grade 35 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsFatigue, Dose 3 (NH), Any9 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsFever, Dose 1, Grade 30 Participants
RSV_1_dose GroupNumber of Participants With Any and Grade 3 Solicited Systemic Adverse EventsMyalgia, Dose 1, Grade 37 Participants
Secondary

Number of Participants With Any Unsolicited AEs

An unsolicited AE is defined as any AE reported in addition to those solicited during the clinical study. Also, any 'solicited' symptom with onset outside of the specified period of follow-up for solicited symptoms was reported as an unsolicited AE. Any= occurrence of the event regardless of intensity grade or relation to the study vaccination.

Time frame: During the 30-day follow up period after first vaccination (Day 1), second vaccination (administered pre-season 2) and after the third vaccination (administered pre-season 3 -only applicable for participants in NH)

Population: Analysis is performed on the Exposed Set, which included all participants that received at least the first vaccination. Only participants with data available at specified timepoints were included in analysis. Analysis is presented dose-wise after first dose administration and annual revaccinations.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
RSVPreF3 GroupNumber of Participants With Any Unsolicited AEsAny unsolicited AE (post Dose 2)1570 Participants
RSVPreF3 GroupNumber of Participants With Any Unsolicited AEsAny unsolicited AE (post Dose 1)2334 Participants
RSVPreF3 GroupNumber of Participants With Any Unsolicited AEsAny unsolicited AE (post Dose 3)422 Participants
Placebo GroupNumber of Participants With Any Unsolicited AEsAny unsolicited AE (post Dose 2)824 Participants
Placebo GroupNumber of Participants With Any Unsolicited AEsAny unsolicited AE (post Dose 1)2149 Participants
Placebo GroupNumber of Participants With Any Unsolicited AEsAny unsolicited AE (post Dose 3)233 Participants
RSV_1_dose GroupNumber of Participants With Any Unsolicited AEsAny unsolicited AE (post Dose 1)2136 Participants
RSV_1_dose GroupNumber of Participants With Any Unsolicited AEsAny unsolicited AE (post Dose 3)397 Participants
RSV_1_dose GroupNumber of Participants With Any Unsolicited AEsAny unsolicited AE (post Dose 2)1456 Participants
Secondary

Number of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1

RSV infection was confirmed by RT-PCR, and the symptoms/signs and supportive therapy use associated with RT-PCR confirmed RSV A and/or RSV B ARI episodes were reported. Fever was defined as a temperature ≥38.0 degrees Celsius (°C) by any route.

Time frame: From Day 15 post-dose 1 administration up to end of season 1 in the SH [a median of approximately 11.5 months (11.6 months in NH and 9.1 months in SH)]

Population: Analysis was performed on the mES. Only participants with data available for symptoms/signs and supportive therapy use associated with RT-PCR confirmed RSV A and/or RSV B ARI episodes at specified timepoints were included in analysis.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Wheezing (new or increased)5 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Crackles1 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Cough (new or increased)36 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Headache20 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Respiratory rate ≥20 breaths/minute3 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Rhonchi1 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Nasal Congestion28 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Rhinorrhea32 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Feverishness8 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Low or decreased oxygen saturation1 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Sore Throat26 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Fever2 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Decreased appetite13 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Sputum (new or increased)20 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Need for oxygen supplementation0 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Need for positive airway pressure therapy0 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Fatigue22 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Need of other types of mechanical ventilation0 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Shortness of breath or dyspnea (new or increased)7 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Other symptoms or signs7 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Body aches12 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Other symptoms or signs22 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Sore Throat76 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Wheezing (new or increased)25 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Body aches40 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Need for oxygen supplementation4 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Rhinorrhea93 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Cough (new or increased)101 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Sputum (new or increased)75 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Shortness of breath or dyspnea (new or increased)35 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Crackles6 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Rhonchi13 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Respiratory rate ≥20 breaths/minute11 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Low or decreased oxygen saturation9 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Fever8 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Feverishness24 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Fatigue67 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Headache55 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Decreased appetite42 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Need for positive airway pressure therapy0 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Need of other types of mechanical ventilation0 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 1Nasal Congestion83 Participants
Secondary

Number of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2

RSV infection was confirmed by RT-PCR, and the symptoms/signs and supportive therapy use associated with RT-PCR confirmed RSV A and/or RSV B ARI episodes were reported. Fever was defined as a temperature ≥38.0 degrees Celsius (°C) by any route.

Time frame: From Day 15 post-dose 2 administration up to end of Season 2 in SH (a median of approximately 11.9 months [11.9 months in NH and 7.5 months in SH])

Population: Analysis was performed on the modified Exposed set for Dose 2 (mES-Dose 2), which included all participants who received the first and second doses of the study intervention, and who did not report an RSV-confirmed ARI prior to Day 15 after each vaccination. Only participants with data available for symptoms/signs and supportive therapy use associated with RT-PCR confirmed RSV A and/or RSV B ARI episodes at specified timepoints were included in analysis.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Feverishness64 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Shortness of breath or dyspnea (new or increased)79 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Nasal Congestion162 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Sputum (new or increased)150 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Wheezing (new or increased)56 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Low or decreased oxygen saturation8 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Rhinorrhea186 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Respiratory rate ≥20 breaths/minute21 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Crackles19 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Need of other types of mechanical ventilation0 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Rhonchi32 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Fever21 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Need for oxygen supplementation1 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Cough (new or increased)201 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Decreased appetite85 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Need for positive airway pressure therapy0 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Headache124 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Sore Throat147 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Body aches91 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Other symptoms or signs48 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Fatigue145 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Low or decreased oxygen saturation1 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Sore Throat43 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Sputum (new or increased)39 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Respiratory rate ≥20 breaths/minute5 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Fatigue34 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Nasal Congestion43 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Rhinorrhea52 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Cough (new or increased)55 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Shortness of breath or dyspnea (new or increased)17 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Wheezing (new or increased)15 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Crackles2 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Rhonchi8 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Fever5 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Feverishness13 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Body aches27 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Headache36 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Decreased appetite20 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Need for oxygen supplementation1 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Need for positive airway pressure therapy1 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Need of other types of mechanical ventilation0 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Other symptoms or signs12 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Need for oxygen supplementation0 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Rhinorrhea39 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Fatigue33 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Nasal Congestion31 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Sputum (new or increased)29 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Body aches24 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Need of other types of mechanical ventilation0 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Need for positive airway pressure therapy0 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Headache28 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Decreased appetite18 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Low or decreased oxygen saturation4 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Crackles3 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Feverishness15 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Rhonchi7 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Wheezing (new or increased)10 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Respiratory rate ≥20 breaths/minute0 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Shortness of breath or dyspnea (new or increased)19 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Cough (new or increased)41 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Other symptoms or signs14 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Fever7 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 2Sore Throat33 Participants
Secondary

Number of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3

RSV infection was confirmed by RT-PCR, and the symptoms/signs and supportive therapy use associated with RT-PCR confirmed RSV A and/or RSV B ARI episodes were reported. Fever was defined as a temperature ≥38.0 degrees Celsius (°C) by any route.

Time frame: From start of Season 3 up to end of Season 3 in NH (a median of approximately 7 months)

Population: Analysis was performed on the mES-Dose 2. Only participants with data available for symptoms/signs and supportive therapy use associated with RT-PCR confirmed RSV A and/or RSV B ARI episodes at specified timepoints were included in analysis. Only participants in NH were included in this analysis.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Nasal Congestion101 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Sore Throat76 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Shortness of breath or dyspnea (new or increased)42 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Crackles10 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Fever10 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Feverishness32 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Fatigue85 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Headache66 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Decreased appetite52 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Rhinorrhea98 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Cough (new or increased)111 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Sputum (new or increased)86 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Wheezing (new or increased)32 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Rhonchi16 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Respiratory rate ≥20 breaths/minute9 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Low or decreased oxygen saturation11 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Body aches56 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Need for oxygen supplementation0 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Need for positive airway pressure therapy0 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Need of other types of mechanical ventilation0 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Other symptoms or signs35 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Headache16 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Nasal Congestion25 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Decreased appetite13 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Sore Throat17 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Cough (new or increased)27 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Need for positive airway pressure therapy0 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Low or decreased oxygen saturation1 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Wheezing (new or increased)6 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Crackles2 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Respiratory rate ≥20 breaths/minute3 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Fever2 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Rhinorrhea26 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Sputum (new or increased)23 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Feverishness14 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Fatigue21 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Rhonchi8 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Body aches16 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Other symptoms or signs6 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Need of other types of mechanical ventilation0 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Shortness of breath or dyspnea (new or increased)10 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Need for oxygen supplementation1 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Cough (new or increased)18 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Nasal Congestion15 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Rhinorrhea17 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Sore Throat14 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Decreased appetite12 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Sputum (new or increased)10 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Shortness of breath or dyspnea (new or increased)5 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Need of other types of mechanical ventilation0 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Crackles0 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Need for oxygen supplementation0 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Rhonchi2 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Other symptoms or signs9 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Respiratory rate ≥20 breaths/minute0 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Need for positive airway pressure therapy0 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Wheezing (new or increased)3 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Low or decreased oxygen saturation3 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Fever0 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Feverishness6 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Fatigue15 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Headache12 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B ARI Episodes During Season 3Body aches10 Participants
Secondary

Number of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1

RSV infection was confirmed by RT-PCR, and the symptoms/signs and supportive therapy use associated with RT-PCR confirmed RSV A and/or RSV B LRTD episodes were reported. Fever was defined as a temperature ≥38.0°C by any route.

Time frame: From Day 15 post-dose 1 administration up to end of season 1 in the SH [a median of approximately 11.5 months (11.6 months in NH and 9.1 months in SH)]

Population: Analysis was performed on the mES-RSV. Only participants with data available for symptoms/signs and supportive therapy use associated with RT-PCR confirmed RSV A and/or RSV B LRTD episodes at specified timepoints were included in analysis.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Sore Throat5 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Body aches5 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Cough (new or increased)10 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Shortness of breath or dyspnea (new or increased)4 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Wheezing (new or increased)5 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Crackles1 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Nasal Congestion7 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Rhonchi0 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Respiratory rate ≥20 breaths/minute3 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Low or decreased oxygen saturation1 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Fever1 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Feverishness2 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Fatigue6 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Headache4 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Decreased appetite7 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Need for oxygen supplementation0 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Need for positive airway pressure therapy0 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Need of other types of mechanical ventilation0 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Other symptoms or signs2 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Rhinorrhea9 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Sputum (new or increased)8 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Fever8 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Sputum (new or increased)36 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Rhonchi13 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Other symptoms or signs12 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Body aches22 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Sore Throat33 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Feverishness16 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Cough (new or increased)47 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Need for positive airway pressure therapy0 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Shortness of breath or dyspnea (new or increased)29 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Fatigue37 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Wheezing (new or increased)24 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Nasal Congestion38 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Headache27 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Crackles6 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Need of other types of mechanical ventilation0 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Decreased appetite26 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Respiratory rate ≥20 breaths/minute10 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Rhinorrhea38 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Low or decreased oxygen saturation8 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 1Need for oxygen supplementation4 Participants
Secondary

Number of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2

RSV infection was confirmed by RT-PCR, and the symptoms/signs and supportive therapy use associated with RT-PCR confirmed RSV A and/or RSV B LRTD episodes were reported. Fever was defined as a temperature ≥38.0°C by any route.

Time frame: From Day 15 post-dose 2 administration up to end of Season 2 in SH (a median of approximately 11.9 months [11.9 months in NH and 7.5 months in SH])

Population: Analysis was performed on the mES-Dose 2. Only participants with data available for symptoms/signs and supportive therapy use associated with RT-PCR confirmed RSV A and/or RSV B LRTD episodes at specified timepoints were included in analysis.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Wheezing (new or increased)56 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Respiratory rate ≥20 breaths/minute21 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Body aches53 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Crackles19 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Nasal Congestion90 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Fatigue86 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Rhonchi31 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Need of other types of mechanical ventilation0 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Feverishness44 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Low or decreased oxygen saturation8 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Need for positive airway pressure therapy0 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Fever13 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Sore Throat79 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Cough (new or increased)106 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Need for oxygen supplementation1 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Sputum (new or increased)95 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Other symptoms or signs28 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Decreased appetite47 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Shortness of breath or dyspnea (new or increased)72 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Rhinorrhea96 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Headache70 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Need for positive airway pressure therapy1 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Rhinorrhea20 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Sore Throat17 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Rhonchi5 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Nasal Congestion20 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Cough (new or increased)21 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Sputum (new or increased)19 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Shortness of breath or dyspnea (new or increased)14 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Wheezing (new or increased)15 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Crackles2 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Respiratory rate ≥20 breaths/minute5 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Low or decreased oxygen saturation1 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Fever3 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Feverishness7 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Fatigue16 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Body aches15 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Headache17 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Decreased appetite13 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Need for oxygen supplementation1 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Need of other types of mechanical ventilation0 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Other symptoms or signs3 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Wheezing (new or increased)10 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Sore Throat15 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Body aches11 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Shortness of breath or dyspnea (new or increased)13 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Other symptoms or signs5 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Headache14 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Sputum (new or increased)17 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Need of other types of mechanical ventilation0 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Decreased appetite11 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Cough (new or increased)20 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Rhinorrhea19 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Need for oxygen supplementation0 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Low or decreased oxygen saturation4 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Nasal Congestion15 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Fever3 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Respiratory rate ≥20 breaths/minute0 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Rhonchi7 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Feverishness8 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Crackles3 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Need for positive airway pressure therapy0 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 2Fatigue15 Participants
Secondary

Number of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3

RSV infection was confirmed by RT-PCR, and the symptoms/signs and supportive therapy use associated with RT-PCR confirmed RSV A and/or RSV B LRTD episodes were reported. Fever was defined as a temperature ≥38.0°C by any route.

Time frame: From start of Season 3 up to end of Season 3 in NH (a median of approximately 7 months)

Population: Analysis was performed on the mES-Dose 2. Only participants with data available for symptoms/signs and supportive therapy use associated with RT-PCR confirmed RSV A and/or RSV B LRTD episodes at specified timepoints were included in analysis. Only participants in NH were included in this analysis.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Body aches39 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Crackles10 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Other symptoms or signs22 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Fatigue49 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Rhonchi16 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Need for positive airway pressure therapy0 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Feverishness22 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Respiratory rate ≥20 breaths/minute9 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Cough (new or increased)60 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Fever6 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Low or decreased oxygen saturation11 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Rhinorrhea50 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Need for oxygen supplementation0 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Sputum (new or increased)53 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Nasal Congestion54 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Decreased appetite33 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Shortness of breath or dyspnea (new or increased)38 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Need of other types of mechanical ventilation0 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Headache41 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Wheezing (new or increased)32 Participants
RSVPreF3 GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Sore Throat42 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Need for positive airway pressure therapy0 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Nasal Congestion13 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Rhinorrhea14 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Sore Throat9 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Cough (new or increased)15 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Sputum (new or increased)14 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Shortness of breath or dyspnea (new or increased)9 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Wheezing (new or increased)5 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Crackles2 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Rhonchi8 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Respiratory rate ≥20 breaths/minute3 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Low or decreased oxygen saturation1 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Fever0 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Feverishness8 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Fatigue13 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Body aches10 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Headache10 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Decreased appetite11 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Need for oxygen supplementation1 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Need of other types of mechanical ventilation0 Participants
Placebo GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Other symptoms or signs4 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Wheezing (new or increased)3 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Rhinorrhea4 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Body aches5 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Shortness of breath or dyspnea (new or increased)4 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Other symptoms or signs3 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Headache5 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Sputum (new or increased)5 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Need of other types of mechanical ventilation0 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Decreased appetite3 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Cough (new or increased)6 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Nasal Congestion4 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Need for oxygen supplementation0 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Low or decreased oxygen saturation3 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Respiratory rate ≥20 breaths/minute0 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Sore Throat5 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Fever0 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Rhonchi2 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Feverishness3 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Crackles0 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Need for positive airway pressure therapy0 Participants
RSV_1_dose GroupNumber of Participants With Each Reported Symptom/Sign and Supportive Therapy Use Associated With of RT-PCR Confirmed RSV A and/or B LRTD Episodes During Season 3Fatigue6 Participants
Secondary

Number of Participants With Fatal SAEs

Fatal SAEs that occur throughout the study are assessed. Fatal SAEs= Any SAEs leading to deaths.

Time frame: From Day 1 up to study end (approximately 3 years for NH and 2.5-3 years for SH)

Population: Analysis was performed on the Exposed Set. Only participants with data available at specified timepoints were included in analysis. Analysis is presented dose-wise after first dose administration and annual revaccinations.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
RSVPreF3 GroupNumber of Participants With Fatal SAEs265 Participants
Placebo GroupNumber of Participants With Fatal SAEs111 Participants
RSV_1_dose GroupNumber of Participants With Fatal SAEs120 Participants
Secondary

Number of Participants With First Episode of Any ARI or Any LRTD Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses

Efficacy of a single dose of the RSVPreF3 OA vaccine and annual revaccination doses is assessed against any ARI and any LRTD.

Time frame: From Day 15 post first vaccination up to study end (approximately 3 years for NH and 2.5-3 years for SH)

Population: Analysis was performed on the mES-RSV. Only participants with data available at specified timepoints were included in analysis. For single dose evaluation, participants from the RSV\_annual group who received RSVPreF3 OA investigational vaccine at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2. For annual dose evaluation, participants from the RSV\_1\_dose group who received Placebo at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
RSVPreF3 GroupNumber of Participants With First Episode of Any ARI or Any LRTD Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesAny ARI (Single dose)4858 Participants
RSVPreF3 GroupNumber of Participants With First Episode of Any ARI or Any LRTD Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesAny ARI (Annual revaccination)4731 Participants
RSVPreF3 GroupNumber of Participants With First Episode of Any ARI or Any LRTD Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesAny LRTD (Single dose)12450 Participants
RSVPreF3 GroupNumber of Participants With First Episode of Any ARI or Any LRTD Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesAny LRTD (Annual revaccination)2308 Participants
Placebo GroupNumber of Participants With First Episode of Any ARI or Any LRTD Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesAny LRTD (Annual revaccination)3210 Participants
Placebo GroupNumber of Participants With First Episode of Any ARI or Any LRTD Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesAny ARI (Single dose)6096 Participants
Placebo GroupNumber of Participants With First Episode of Any ARI or Any LRTD Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesAny LRTD (Single dose)3352 Participants
Placebo GroupNumber of Participants With First Episode of Any ARI or Any LRTD Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesAny ARI (Annual revaccination)5914 Participants
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of any ARI in adults ≥ 60 YOA, following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [-1.47, 5.99]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of any ARI in adults ≥ 60 YOA, following annual revaccination of the RSVPreF3 OA investigational vaccine.95% CI: [-0.5, 6.98]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of any LRTD in adults ≥ 60 YOA, following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [-1.55, 8.63]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of any LRTD in adults ≥ 60 YOA, following annual revaccination of the RSVPreF3 OA investigational vaccine.95% CI: [1.81, 11.9]Poisson regression method
Secondary

Number of Participants With First Episode of RT-PCR Confirmed LRTD Caused by Human Metapneumovirus (hMPV) up to the End of Season 1 Following a Single Dose of the RSVPreF3 OA Vaccine

Time frame: From Day 15 post-vaccination up to end of season 1 in the SH [a median of approximately 11.5 months (11.6 months in NH and 9.1 months in SH)]

Population: Analysis was performed on the mES-RSV. Only participants with data available at specified timepoints were included in analysis.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed LRTD Caused by Human Metapneumovirus (hMPV) up to the End of Season 1 Following a Single Dose of the RSVPreF3 OA Vaccine53 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed LRTD Caused by Human Metapneumovirus (hMPV) up to the End of Season 1 Following a Single Dose of the RSVPreF3 OA Vaccine65 Participants
Comparison: To evaluate vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of hMPV-confirmed LRTD in adults ≥ 60 YOA, following a single dose of the RSVPreF3 OA investigational vaccine up to the end of Season 1.95% CI: [-19.1, 44.33]Poisson regression method
Secondary

Number of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated ARI Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses

Efficacy of a single dose of the RSVPreF3 OA vaccine and annual revaccination doses is assessed against RSV confirmed A and/or B associated ARI episode. A case of RT-PCR confirmed RSV-associated ARI is characterized by the presence of respiratory symptoms/signs for at least 24 hours OR respiratory symptom/sign + systemic symptom/sign for at least 24 hours with at least one RSV-positive swab detected by RT-PCR.

Time frame: From Day 15 post first vaccination up to end of season 3 in the NH (assessed approximately over 3 years in NH and 2.5-3 years in SH)

Population: Analysis was performed on the mES-RSV. Only participants with data available at specified timepoints were included in analysis. For single dose evaluation, participants from the RSV\_annual group who received RSVPreF3 OA investigational vaccine at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2. For annual dose evaluation, participants from the RSV\_1\_dose group who received Placebo at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated ARI Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV ARI (Single dose)131 Participants
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated ARI Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV ARI (Annual revaccination)103 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated ARI Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV ARI (Single dose)428 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated ARI Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV ARI (Annual revaccination)385 Participants
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed ARI in adults ≥ 60 YOA, following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [40.31, 60.21]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed ARI in adults ≥ 60 YOA, following annual revaccination of the RSVPreF3 OA investigational vaccine.95% CI: [48.1, 66.96]Poisson regression method
Secondary

Number of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD, by Age Categories Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses

Efficacy of a single dose of the RSVPreF3 OA vaccine and annual revaccination doses was assessed against RSV A and/or B confirmed LRTD episode according to the case definition, in the following age categories: greater than or equal to (≥) 65 years of age (YOA), ≥70 YOA and ≥80 YOA.

Time frame: From Day 15 post first vaccination up to end of season 3 in the NH (assessed approximately over 3 years in NH and 2.5-3 years in SH)

Population: Analysis was performed on the mES-RSV. Only participants with data available at specified timepoints were included in analysis. For single dose evaluation, participants from the RSV\_annual group who received RSVPreF3 OA investigational vaccine at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2. For annual dose evaluation, participants from the RSV\_1\_dose group who received Placebo at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD, by Age Categories Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD (Single dose), >=80 YOA,5 Participants
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD, by Age Categories Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD (Single dose), >=70 YOA20 Participants
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD, by Age Categories Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD (Annual revaccination), >=65 YOA28 Participants
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD, by Age Categories Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD (Annual revaccination), >=70 YOA19 Participants
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD, by Age Categories Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD (Annual revaccination), >=80 YOA5 Participants
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD, by Age Categories Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD (Single dose), >=65 YOA38 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD, by Age Categories Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD (Annual revaccination), >=80 YOA12 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD, by Age Categories Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD (Single dose), >=80 YOA,13 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD, by Age Categories Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD (Annual revaccination), >=65 YOA137 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD, by Age Categories Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD (Single dose), >=65 YOA156 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD, by Age Categories Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD (Annual revaccination), >=70 YOA87 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD, by Age Categories Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD (Single dose), >=70 YOA98 Participants
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD by \>=65YOA, following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [40.73, 71.96]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD by \>=70YOA, following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [44.32, 80.16]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD by \>=80YOA, following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [-93.99, 82.47]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD by \>=65YOA, following annual revaccination of the RSVPreF3 OA investigational vaccine.95% CI: [49.33, 78.64]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD by \>=70YOA, following annual revaccination of the RSVPreF3 OA investigational vaccine at end of season 3.95% CI: [40.49, 79.55]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD by \>=80YOA, following annual revaccination of the RSVPreF3 OA investigational vaccine at end of season 3.95% CI: [-108.42, 81.73]Poisson regression method
Secondary

Number of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Comorbidities According to Comorbidities of Interest Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses

Efficacy of a single dose of the RSVPreF3 OA vaccine and annual revaccination doses is assessed against RSV A and/or B associated LRTD episode by baseline comorbidities of interest divided into 2: cardiorespiratory conditions such as chronic obstructive pulmonary disease (COPD), asthma, any chronic respiratory or pulmonary disease, and endocrinometabolic conditions such as diabetes mellitus type 1 or 2, chronic heart failure and advanced liver or renal disease.

Time frame: From Day 15 post first vaccination up to end of season 3 in the NH (assessed approximately over 3 years in NH and 2.5-3 years in SH)

Population: Analysis was performed on the mES-RSV. Only participants with data available at specified timepoints were included in analysis. For single dose evaluation, participants from the RSV\_annual group who received RSVPreF3 OA investigational vaccine at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2. For annual dose evaluation, participants from the RSV\_1\_dose group who received Placebo at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Comorbidities According to Comorbidities of Interest Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesConfirmed RSV LRTD (Single dose), No pre-existing comorbidity of interest23 Participants
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Comorbidities According to Comorbidities of Interest Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesConfirmed RSV LRTD (Single dose), At least 1 pre-existing comorbidity of interest25 Participants
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Comorbidities According to Comorbidities of Interest Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesConfirmed RSV LRTD (Single dose), At least 1 pre-existing Cardiorespiratory condition17 Participants
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Comorbidities According to Comorbidities of Interest Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesConfirmed RSV LRTD (Single dose), At least 1 pre-existing Endocrinometabolic condition12 Participants
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Comorbidities According to Comorbidities of Interest Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesConfirmed RSV LRTD (Annual revaccination), No pre-existing comorbidity of interest20 Participants
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Comorbidities According to Comorbidities of Interest Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesConfirmed RSV LRTD (Annual revaccination), At least 1 pre-existing comorbidity of interest18 Participants
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Comorbidities According to Comorbidities of Interest Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesConfirmed RSV LRTD (Annual revaccination), At least 1 pre-existing Cardiorespiratory condition11 Participants
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Comorbidities According to Comorbidities of Interest Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesConfirmed RSV LRTD (Annual revaccination), At least 1 pre-existing Endocrinometabolic condition9 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Comorbidities According to Comorbidities of Interest Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesConfirmed RSV LRTD (Annual revaccination), At least 1 pre-existing Endocrinometabolic condition49 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Comorbidities According to Comorbidities of Interest Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesConfirmed RSV LRTD (Single dose), No pre-existing comorbidity of interest99 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Comorbidities According to Comorbidities of Interest Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesConfirmed RSV LRTD (Annual revaccination), No pre-existing comorbidity of interest91 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Comorbidities According to Comorbidities of Interest Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesConfirmed RSV LRTD (Single dose), At least 1 pre-existing comorbidity of interest116 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Comorbidities According to Comorbidities of Interest Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesConfirmed RSV LRTD (Annual revaccination), At least 1 pre-existing Cardiorespiratory condition73 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Comorbidities According to Comorbidities of Interest Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesConfirmed RSV LRTD (Single dose), At least 1 pre-existing Cardiorespiratory condition85 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Comorbidities According to Comorbidities of Interest Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesConfirmed RSV LRTD (Annual revaccination), At least 1 pre-existing comorbidity of interest101 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Comorbidities According to Comorbidities of Interest Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesConfirmed RSV LRTD (Single dose), At least 1 pre-existing Endocrinometabolic condition55 Participants
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD in adults ≥ 60 YOA with no pre-existing comorbidity of interest, following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [38.62, 76.74]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD in adults ≥ 60 YOA with at least 1 pre-existing comorbidity of interest, following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [45.1, 78.14]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD in adults ≥ 60 YOA with at least 1 pre-existing cardiorespiratory condition, following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [45.71, 82.33]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD in adults ≥ 60 YOA with at least 1 pre-existing endocrinometabolic condition, following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [31.35, 82.48]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD in adults ≥ 60 YOA with no pre-existing comorbidity of interest, following annual revaccination of the RSVPreF3 OA investigational vaccine.95% CI: [41.08, 79.17]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD in adults ≥ 60 YOA with at least 1 pre-existing comorbidity of interest, following annual revaccination of the RSVPreF3 OA investigational vaccine.95% CI: [51.92, 83.65]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD in adults ≥ 60 YOA with at least 1 pre-existing cardiorespiratory condition,following annual revaccination of the RSVPreF3 OA investigational vaccine.95% CI: [54.11, 88.54]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD in adults ≥ 60 YOA with at least 1 pre-existing endocrinometabolic condition, following annual revaccination of the RSVPreF3 OA investigational vaccine.95% CI: [37.51, 87.05]Poisson regression method
Secondary

Number of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Comorbidities Using Charlson Comorbidity Index Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses

Efficacy of a single dose of the RSVPreF3 OA vaccine and annual revaccination doses is assessed against RSV A and/or B associated LRTD episode by baseline comorbidities using Charlson Comorbidity Index. Low/medium Risk = Participants with co-morbidity score at baseline less than or equal to 3 (Charlson Index); High Risk = Participants with co-morbidity score at baseline greater than 3 (Charlson Index).

Time frame: From Day 15 post first vaccination up to end of season 3 in the NH (assessed approximately over 3 years in NH and 2.5-3 years in SH)

Population: Analysis was performed on the mES-RSV. Only participants with data available at specified timepoints were included in analysis. For single dose evaluation, participants from the RSV\_annual group who received RSVPreF3 OA investigational vaccine at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2. For annual dose evaluation, participants from the RSV\_1\_dose group who received Placebo at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Comorbidities Using Charlson Comorbidity Index Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD (Single dose), Low/Medium risk24 Participants
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Comorbidities Using Charlson Comorbidity Index Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD (Single dose), High risk24 Participants
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Comorbidities Using Charlson Comorbidity Index Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD (Annual revaccination), Low/Medium risk18 Participants
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Comorbidities Using Charlson Comorbidity Index Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD (Annual revaccination), High risk20 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Comorbidities Using Charlson Comorbidity Index Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD (Annual revaccination), High risk84 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Comorbidities Using Charlson Comorbidity Index Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD (Single dose), Low/Medium risk119 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Comorbidities Using Charlson Comorbidity Index Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD (Annual revaccination), Low/Medium risk108 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Comorbidities Using Charlson Comorbidity Index Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD (Single dose), High risk96 Participants
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD in adults ≥ 60 YOA by baseline comorbidities with low/medium risk (Charlson Comorbidity Index), following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [47.54, 79.4]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD in adults ≥ 60 YOA by baseline comorbidities with high risk (Charlson Comorbidity Index), following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [34.81, 74.98]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD in adults ≥ 60 YOA by baseline comorbidities with low/medium risk (Charlson Comorbidity Index), following annual revaccination of the RSVPreF3 OA investigational vaccine.95% CI: [54.34, 84.37]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD in adults ≥ 60 YOA by baseline comorbidities with high risk (Charlson Comorbidity Index), following annual revaccination of the RSVPreF3 OA investigational vaccine.95% CI: [37.17, 78.01]Poisson regression method
Secondary

Number of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Frailty Status Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses

Efficacy of a single dose of the RSVPreF3 OA vaccine and annual revaccination doses is assessed against RSV A and /or B associated LRTD episode according to the case definition, by baseline frailty status of frail, pre-frail and fit. Frail = Participants with a walking speed of less than (\<) 0.4 meters per second (m/s) or who were not able to perform the test; Pre-Frail = Participants with a walking speed between 0.4-0.99 m/s; Fit = Participants with a walking speed of ≥1 m/s.

Time frame: From Day 15 post first vaccination up to end of season 3 in the NH (assessed approximately over 3 years in NH and 2.5-3 years in SH)

Population: Analysis was performed on the mES-RSV. Only participants with data available at specified timepoints were included in analysis. For single dose evaluation, participants from the RSV\_annual group who received RSVPreF3 OA investigational vaccine at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2. For annual dose evaluation, participants from the RSV\_1\_dose group who received Placebo at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Frailty Status Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD (Annual revaccination), Frail1 Participants
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Frailty Status Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD (Annual revaccination), Pre-Frail10 Participants
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Frailty Status Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD (Single dose), Frail2 Participants
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Frailty Status Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD (Single dose), Pre-Frail12 Participants
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Frailty Status Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD (Single dose), Fit34 Participants
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Frailty Status Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD (Annual revaccination), Fit27 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Frailty Status Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD (Annual revaccination), Fit126 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Frailty Status Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD (Single dose), Fit145 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Frailty Status Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD (Annual revaccination), Frail1 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Frailty Status Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD (Single dose), Frail1 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Frailty Status Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD (Annual revaccination), Pre-Frail63 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Baseline Frailty Status Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD (Single dose), Pre-Frail67 Participants
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD by baseline frailty status (frail) in adults ≥ 60 YOA, following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [-16322.97, 88]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD by baseline frailty status (pre-frail) in adults ≥ 60 YOA, following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [43.89, 85.33]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD by baseline frailty status (fit) in adults ≥ 60 YOA, following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [42.89, 74.08]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD by baseline frailty status (frail) in adults ≥ 60 YOA, following annual revaccination of the RSVPreF3 OA investigational vaccine.95% CI: [-6751.38, 98.91]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD by baseline frailty status (pre-frail) in adults ≥ 60 YOA, following annual revaccination of the RSVPreF3 OA investigational vaccine.95% CI: [49.33, 88.31]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD by baseline frailty status (fit) in adults ≥ 60 YOA, following annual revaccination of the RSVPreF3 OA investigational vaccine.95% CI: [46.1, 77.75]Poisson regression method
Secondary

Number of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by RSV Season Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses

Efficacy of a single dose of the RSVPreF3 OA vaccine and annual revaccination doses was assessed against RSV A and/or B confirmed LRTD episode according to the case definition, by RSV season as follows: VE after each season includes the first occurrence of episodes reported from Day 15 post vaccination at first season, and for the next seasons, excluding analysis of participants who already reported a case in the previous season. The RSV season may be extended based on epidemiology data.

Time frame: From Day 15 post first dose or start of the RSV season to the first occurrence of RSV-confirmed LRTD at each RSV season (assessed approximately over 7 months at each season [Seasons 1 and 2 in SH, Seasons 1, 2 and 3 in NH])

Population: Analysis was performed on the mES-RSV. Only participants with data available at specified timepoints were included in analysis. Analysis is presented based on the groups at each season (RSVPreF3 group for Season 1, RSV\_1\_dose and RSV\_annual groups for Seasons 2 and 3, Placebo group for Season 1, 2 and 3).

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by RSV Season Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD, Season 17 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by RSV Season Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD, Season 3 (Single dose)60 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by RSV Season Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD, Season 3 (Annual revaccination)37 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by RSV Season Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD, Season 136 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by RSV Season Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD, Season 2 (Single dose)98 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by RSV Season Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD, Season 2 (Annual revaccination)98 Participants
RSV_1_dose GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by RSV Season Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD, Season 3 (Single dose)16 Participants
RSV_1_dose GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by RSV Season Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD, Season 2 (Single dose)19 Participants
RSV_annual GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by RSV Season Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD, Season 2 (Annual revaccination)22 Participants
RSV_annual GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by RSV Season Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD, Season 3 (Annual revaccination)6 Participants
Comparison: To evaluate the efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD over season 1 in adults ≥ 60 YOA, following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [55.9, 92.73]Poisson regression method
Comparison: To evaluate the efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD over season 2 in adults ≥ 60 YOA, following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [36.44, 77.7]Poisson regression method
Comparison: To evaluate the efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD over season 3 in adults ≥ 60 YOA, following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [7.06, 71.59]Poisson regression method
Comparison: To evaluate the efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD over season 2 in adults ≥ 60 YOA, following annual revaccination of the RSVPreF3 OA investigational vaccine.95% CI: [27.85, 72.98]Poisson regression method
Comparison: To evaluate the efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD over season 3 in adults ≥ 60 YOA, following annual revaccination of the RSVPreF3 OA investigational vaccine.95% CI: [22.35, 88.79]Poisson regression method
Secondary

Number of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Year Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses

Efficacy of a single dose of the RSVPreF3 OA vaccine and annual revaccination doses was assessed against RSV A and/or B confirmed LRTD episode according to the case definition, by years after vaccination as follows: VE at each year includes the first occurrence of episodes reported from Day 14 post vaccination at first year, and for the next years, excluding analysis of participants who already reported a case in the previous year.

Time frame: From Day 15 post first dose and each revaccination dose up to next dose or end of study (assessed approximately over a year after each vaccination [at Year 1, Year 2 and Year 3])

Population: Analysis was performed on the mES-RSV. Only participants with data available at specified timepoints were included in analysis. Analysis is presented based on the groups at each season (RSVPreF3 group for Year 1, RSV\_1\_dose and RSV\_annual groups for Years 2 and 3, Placebo group for Years 1, 2 and 3).

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Year Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD, Year 110 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Year Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD, Year 3 (Single dose)61 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Year Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD, Year 3 (Annual revaccination)38 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Year Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD, Year 147 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Year Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD, Year 2 (Single dose)106 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Year Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD, Year 2 (Annual revaccination)106 Participants
RSV_1_dose GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Year Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD, Year 3 (Single dose)16 Participants
RSV_1_dose GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Year Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD, Year 2 (Single dose)22 Participants
RSV_annual GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Year Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD, Year 3 (Annual revaccination)6 Participants
RSV_annual GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD by Year Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV LRTD, Year 2 (Annual revaccination)22 Participants
Comparison: To evaluate the efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD over Year 1 in adults ≥ 60 YOA, following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [57.62, 90.48]Poisson regression method
Comparison: To evaluate the efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD over Year 2 in adults ≥ 60 YOA, following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [34, 75.1]Poisson regression method
Comparison: To evaluate the efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD over Year 3 in adults ≥ 60 YOA, following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [8.51, 71.97]Poisson regression method
Comparison: To evaluate the efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD over Year 2 in adults ≥ 60 YOA, following annual revaccination of the RSVPreF3 OA investigational vaccine.95% CI: [33.59, 74.94]Poisson regression method
Comparison: To evaluate the efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD over Year 3 in adults ≥ 60 YOA, following annual revaccination of the RSVPreF3 OA investigational vaccine.95% CI: [24.64, 89.08]Poisson regression method
Secondary

Number of Participants With First Episode of RT-PCR Confirmed RSV A and /or B Associated LRTD, Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses

Time frame: From Day 15 post first dose to the first occurrence of RSV LRTD (assessed approximately over 3 years in the NH and 2.5-3 years in SH)

Population: Analysis was performed on the mES-RSV. Only participants with data available at specified timepoints were included in analysis. For single dose evaluation, participants from the RSV\_annual group who received RSVPreF3 OA investigational vaccine at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2. For annual dose evaluation, participants from the RSV\_1\_dose group who received Placebo at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and /or B Associated LRTD, Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesSeason 2 (Single dose)32 Participants
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and /or B Associated LRTD, Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesSeason 3 (NH) (Single dose)48 Participants
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and /or B Associated LRTD, Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesSeason 2 (Annual revaccination)32 Participants
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and /or B Associated LRTD, Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesSeason 3 (NH) (Annual revaccination)38 Participants
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and /or B Associated LRTD, Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesSeason 110 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and /or B Associated LRTD, Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesSeason 3 (NH) (Annual revaccination)192 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and /or B Associated LRTD, Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesSeason 147 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and /or B Associated LRTD, Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesSeason 2 (Single dose)154 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and /or B Associated LRTD, Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesSeason 2 (Annual revaccination)154 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and /or B Associated LRTD, Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesSeason 3 (NH) (Single dose)215 Participants
Comparison: To evaluate the evolution of efficacy of a single dose of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD in adults ≥ 60 YOA over Season 1.95% CI: [57.95, 89.26]Regression, Cox
Comparison: To evaluate the evolution of efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD in adults ≥ 60 YOA over Season 2, following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [52.47, 77.95]Regression, Cox
Comparison: To evaluate the evolution of efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD in adults ≥ 60 YOA over Season 3, following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [46.76, 74.11]Regression, Cox
Comparison: To evaluate the evolution of efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD in adults ≥ 60 YOA over Season 2, following annual revaccination of the RSVPreF3 OA investigational vaccine.95% CI: [52.27, 77.86]Regression, Cox
Comparison: To evaluate the evolution of efficacy of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD in adults ≥ 60 YOA over Season 3, following annual revaccination of the RSVPreF3 OA investigational vaccine.95% CI: [51.71, 78.34]Regression, Cox
Secondary

Number of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD Over Several Seasons Following Annual Revaccination Doses of the RSVPreF3 OA Vaccine

Efficacy of annual revaccination doses of the RSVPreF3 OA vaccine was assessed against RSV A and/or B confirmed LRTD over several seasons according to the case definition.

Time frame: From Day 15 post first vaccination up to end of season 2 and up to end of season 3 in the NH (assessed approximately over 2 and 3 years in NH)

Population: Analysis was performed on the mES-RSV. Only participants with data available at specified timepoints were included in analysis. For annual dose evaluation, participants from the RSV\_1\_dose group who received Placebo at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2 administration.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD Over Several Seasons Following Annual Revaccination Doses of the RSVPreF3 OA VaccineSeason 2 (NH)30 Participants
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD Over Several Seasons Following Annual Revaccination Doses of the RSVPreF3 OA VaccineSeason 3 (NH)38 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD Over Several Seasons Following Annual Revaccination Doses of the RSVPreF3 OA VaccineSeason 2 (NH)139 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD Over Several Seasons Following Annual Revaccination Doses of the RSVPreF3 OA VaccineSeason 3 (NH)192 Participants
Comparison: To demonstrate the vaccine efficacy of a single dose of the RSVPreF3 OA investigational vaccine followed by 1 annual revaccination before Season 2 in the prevention of RSV-confirmed LRTD in adults ≥ 60 YOA over three seasons.97.5% CI: [51.82, 79.11]Poisson regression method
Comparison: To demonstrate the vaccine efficacy of a single dose of the RSVPreF3 OA investigational vaccine followed by 1 annual revaccination before Season 2 in the prevention of RSV-confirmed LRTD in adults ≥ 60 YOA over two seasons.97.5% CI: [48.09, 80]Poisson regression method
Secondary

Number of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD Over Several Seasons Following a Single Dose of the RSVPreF3 OA Vaccine

Efficacy of a single dose of the RSVPreF3 OA vaccine was assessed against RSV A and/or B confirmed LRTD over several seasons according to the case definition.

Time frame: From Day 15 post first vaccination up to end of season 2 and up to end of season 3 in the Northern Hemisphere [NH] (assessed approximately over 2 and 3 years in NH)

Population: Analysis was performed on the mES-RSV. Only participants with data available at specified timepoints were included in analysis. For single dose evaluation, participants from the RSV\_annual group who received RSVPreF3 OA investigational vaccine at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2 administration.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD Over Several Seasons Following a Single Dose of the RSVPreF3 OA VaccineSeason 2 (NH)30 Participants
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD Over Several Seasons Following a Single Dose of the RSVPreF3 OA VaccineSeason 3 (NH)48 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD Over Several Seasons Following a Single Dose of the RSVPreF3 OA VaccineSeason 2 (NH)139 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated LRTD Over Several Seasons Following a Single Dose of the RSVPreF3 OA VaccineSeason 3 (NH)215 Participants
Comparison: To demonstrate the vaccine efficacy of a single dose of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD in adults ≥ 60 YOA over three seasons.97.5% CI: [46.74, 74.79]Poisson regression method
Comparison: To demonstrate the vaccine efficacy of a single dose of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD in adults ≥ 60 YOA over two seasons.97.5% CI: [48.19, 80.04]Poisson regression method
Secondary

Number of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated Severe LRTD Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination Doses

Efficacy of a single dose of the RSVPreF3 OA vaccine and annual revaccination doses is assessed against RSV A and/or B associated severe LRTD episode. Case definition for RSV-confirmed severe LRTD: An RT-PCR confirmed case of RSV-associated severe LRTD is characterized by presence of lower respiratory signs or an LRTD episode assessed as severe by the investigator (Severe LRTD case definition 1) or presence of an LRTD with need for oxygen supplementation or need for positive airway pressure therapy or need for other types of mechanical ventilation (Severe LRTD case definition 2) and with at least one RSV positive swab detected by RT-PCR.

Time frame: From Day 15 post first vaccination up to end of season 3 in the NH (assessed approximately over 3 years in NH and 2.5-3 years in SH)

Population: Analysis was performed on the mES-RSV. Only participants with data available at specified timepoints were included in analysis. For single dose evaluation, participants from the RSV\_annual group who received RSVPreF3 OA investigational vaccine at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2. For annual dose evaluation, participants from the RSV\_1\_dose group who received Placebo at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated Severe LRTD Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV severe LRTD (Single dose), Definition 1: Clinical symptomology15 Participants
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated Severe LRTD Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV severe LRTD (Annual revaccination), Any9 Participants
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated Severe LRTD Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV severe LRTD (Single dose), Any15 Participants
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated Severe LRTD Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV severe LRTD (Annual revaccination), Definition 1: Clinical symptomology9 Participants
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated Severe LRTD Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV severe LRTD (Single dose), Definition 2: Supportive therapy2 Participants
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated Severe LRTD Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV severe LRTD (Annual revaccination), Definition 2: Supportive therapy0 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated Severe LRTD Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV severe LRTD (Single dose), Definition 2: Supportive therapy7 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated Severe LRTD Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV severe LRTD (Single dose), Any75 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated Severe LRTD Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV severe LRTD (Single dose), Definition 1: Clinical symptomology75 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated Severe LRTD Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV severe LRTD (Annual revaccination), Definition 2: Supportive therapy6 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated Severe LRTD Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV severe LRTD (Annual revaccination), Any67 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV A and/or B Associated Severe LRTD Following a Single Dose of the RSVPreF3 OA Vaccine and Following Annual Revaccination DosesRT-PCR-confirmed RSV severe LRTD (Annual revaccination), Definition 1: Clinical symptomology67 Participants
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of severe RSV-confirmed LRTD in adults ≥ 60 YOA according to any case definition, following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [42.43, 82.68]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of severe RSV-confirmed LRTD in adults ≥ 60 YOA according to case definition 1, following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [42.43, 82.68]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of severe RSV-confirmed LRTD in adults ≥ 60 YOA according to the case definition 2, following a single dose of the RSVPreF3 OA investigational vaccine.95% CI: [-119.6, 95.93]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of severe RSV-confirmed LRTD in adults ≥ 60 YOA according to any case definition, following annual revaccination of the RSVPreF3 OA investigational vaccine.95% CI: [57.05, 90.75]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of severe RSV-confirmed LRTD in adults ≥ 60 YOA according to case definition 1, following annual revaccination of the RSVPreF3 OA investigational vaccine.95% CI: [57.05, 90.75]Poisson regression method
Comparison: To evaluate the vaccine efficacy of the RSVPreF3 OA investigational vaccine in the prevention of severe RSV-confirmed LRTD in adults ≥ 60 YOA according to case definition 2, following annual revaccination of the RSVPreF3 OA investigational vaccine.95% CI: [20.27, 100]Poisson regression method
Secondary

Number of Participants With First Episode of RT-PCR Confirmed RSV Subtype A and Subtype B LRTD Over 3 Seasons Following a Single Dose of the RSVPreF3 OA Vaccine

Efficacy of a single dose of the RSVPreF3 OA vaccine was assessed against LRTD episode caused by RSV A and B subtype over 3 seasons according to the case definition.

Time frame: From Day 15 post first vaccination up to end of season 3 in the NH (assessed approximately over 3 years in NH, and 2.5-3 years in SH)

Population: Analysis was performed on the mES-RSV. Only participants with data available at specified timepoints were included in analysis. For single dose evaluation, participants from the RSV\_annual group who received RSVPreF3 OA investigational vaccine at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2 administration.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV Subtype A and Subtype B LRTD Over 3 Seasons Following a Single Dose of the RSVPreF3 OA VaccineRT-PCR-confirmed RSV-A LRTD14 Participants
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV Subtype A and Subtype B LRTD Over 3 Seasons Following a Single Dose of the RSVPreF3 OA VaccineRT-PCR-confirmed RSV-B LRTD34 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV Subtype A and Subtype B LRTD Over 3 Seasons Following a Single Dose of the RSVPreF3 OA VaccineRT-PCR-confirmed RSV-A LRTD80 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV Subtype A and Subtype B LRTD Over 3 Seasons Following a Single Dose of the RSVPreF3 OA VaccineRT-PCR-confirmed RSV-B LRTD135 Participants
Comparison: To demonstrate the vaccine efficacy of a single dose of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD for RSV subtype A in adults ≥ 60 YOA over 3 seasons.97.5% CI: [42.18, 85.72]Poisson regression method
Comparison: To demonstrate the vaccine efficacy of a single dose of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD for RSV subtype B in adults ≥ 60 YOA over 3 seasons.97.5% CI: [35.9, 74.11]Poisson regression method
Secondary

Number of Participants With First Episode of RT-PCR Confirmed RSV Subtype A and Subtype B LRTD Over 3 Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following 1 Annual Revaccination Dose

Efficacy of a single dose and 1 annual revaccination dose of the RSVPreF3 OA vaccine was assessed against LRTD episode caused by RSV A and B subtype over 3 seasons according to the case definition.

Time frame: From Day 15 post first vaccination up to end of season 3 in the NH (assessed approximately over 3 years in NH, and 2.5-3 years in SH)

Population: Analysis was performed on the mES-RSV. Only participants with data available at specified timepoints were included in analysis. For single dose evaluation, participants from the RSV\_annual group who received RSVPreF3 OA investigational vaccine at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2. For annual dose evaluation, participants from the RSV\_1\_dose group who received Placebo at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV Subtype A and Subtype B LRTD Over 3 Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following 1 Annual Revaccination DoseRT-PCR-confirmed RSV-A LRTD17 Participants
RSVPreF3 GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV Subtype A and Subtype B LRTD Over 3 Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following 1 Annual Revaccination DoseRT-PCR-confirmed RSV-B LRTD21 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV Subtype A and Subtype B LRTD Over 3 Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following 1 Annual Revaccination DoseRT-PCR-confirmed RSV-A LRTD65 Participants
Placebo GroupNumber of Participants With First Episode of RT-PCR Confirmed RSV Subtype A and Subtype B LRTD Over 3 Seasons Following a Single Dose of the RSVPreF3 OA Vaccine and Following 1 Annual Revaccination DoseRT-PCR-confirmed RSV-B LRTD127 Participants
Comparison: To demonstrate the vaccine efficacy of a single dose and 1 annual revaccination before Season 2 of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD for RSV subtype A in adults ≥ 60 YOA over 3 seasons.97.5% CI: [16.52, 77.52]Poisson regression method
Comparison: To demonstrate the vaccine efficacy of a single dose and 1 annual revaccination before Season 2 of the RSVPreF3 OA investigational vaccine in the prevention of RSV-confirmed LRTD for RSV subtype B in adults ≥ 60 YOA over 3 seasons.97.5% CI: [55.1, 85.4]Poisson regression method
Secondary

Number of Participants With Potential Immune Mediated Diseases (pIMDs)

pIMDs aredefined as a subset of Adverse Events of Specific Interest (AESIs) that include autoimmune diseases and other inflammatory and/or neurologic disorders of interest which may or may not have an autoimmune aetiology. Any= occurrence of any pIMD regardless of intensity grade or relation to the study vaccination.

Time frame: From the day of the vaccination up to 6 months after each vaccination (first vaccination: at Day 1, second vaccination: at pre-season 2 and the third vaccination: at pre-season 3 -only applicable for participants in NH])

Population: Analysis is performed on the Exposed Set, which included all participants that received at least the first vaccination. Only participants with data available at specified timepoints were included in analysis. Analysis is presented dose-wise after first dose administration and annual revaccinations.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
RSVPreF3 GroupNumber of Participants With Potential Immune Mediated Diseases (pIMDs)Any pIMDs (post Dose 2)39 Participants
RSVPreF3 GroupNumber of Participants With Potential Immune Mediated Diseases (pIMDs)Any pIMDs (post Dose 1)39 Participants
RSVPreF3 GroupNumber of Participants With Potential Immune Mediated Diseases (pIMDs)Any pIMDs (post Dose 3)13 Participants
Placebo GroupNumber of Participants With Potential Immune Mediated Diseases (pIMDs)Any pIMDs (post Dose 2)19 Participants
Placebo GroupNumber of Participants With Potential Immune Mediated Diseases (pIMDs)Any pIMDs (post Dose 1)27 Participants
Placebo GroupNumber of Participants With Potential Immune Mediated Diseases (pIMDs)Any pIMDs (post Dose 3)8 Participants
RSV_1_dose GroupNumber of Participants With Potential Immune Mediated Diseases (pIMDs)Any pIMDs (post Dose 1)19 Participants
RSV_1_dose GroupNumber of Participants With Potential Immune Mediated Diseases (pIMDs)Any pIMDs (post Dose 3)10 Participants
RSV_1_dose GroupNumber of Participants With Potential Immune Mediated Diseases (pIMDs)Any pIMDs (post Dose 2)14 Participants
Secondary

Number of Participants With Related pIMDs

Related pIMD = pIMD assessed by the investigator as related to the study vaccination.

Time frame: From Day 1 up to study end (approximately 3 years for NH and 2.5-3 years for SH)

Population: Analysis was performed on the Exposed Set. Only participants with data available at specified timepoints were included in analysis. Analysis is presented dose-wise after first dose administration and annual revaccinations.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
RSVPreF3 GroupNumber of Participants With Related pIMDs9 Participants
Placebo GroupNumber of Participants With Related pIMDs7 Participants
RSV_1_dose GroupNumber of Participants With Related pIMDs5 Participants
Secondary

Number of Participants With Related SAEs

Related SAEs that occur throughout the study are assessed. Related SAEs= Any SAE related to investigational vaccine or related to study participation or to a GSK concomitant medication/vaccine as assessed by the investigator.

Time frame: From Day 1 up to study end (approximately 3 years for NH and 2.5-3 years for SH)

Population: Analysis was performed on the Exposed Set. Only participants with data available at specified timepoints were included in analysis. Analysis is presented dose-wise after first dose administration and annual revaccinations.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
RSVPreF3 GroupNumber of Participants With Related SAEs12 Participants
Placebo GroupNumber of Participants With Related SAEs8 Participants
RSV_1_dose GroupNumber of Participants With Related SAEs12 Participants
Secondary

Number of Participants With RT-PCR Confirmed RSV A and/or B ARI and LRTD Episodes According to Severity

RSV A and/or B ARI and LRTD episodes were assessed as mild, moderate or severe by the investigator after the single dose and after annual revaccination. Mild = an ARI/LRTD episode which is easily tolerated by the participant, causing minimal discomfort and not interfering with everyday activities. Moderate = an ARI/LRTD episode which is sufficiently discomforting to interfere with normal everyday activities. Severe = an ARI/LRTD episode which prevents normal, everyday activities.

Time frame: Assessed during the study period (approximately 3 years for NH and 2.5-3 years for SH)

Population: Analysis was performed on the mES-RSV. Only participants with data available at specified timepoints were included in analysis. For single dose evaluation, participants from the RSV\_annual group who received RSVPreF3 OA investigational vaccine at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2. For annual dose evaluation, participants from the RSV\_1\_dose group who received Placebo at Dose 2 contributed to Season 1 data only and were censored starting from Dose 2.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
RSVPreF3 GroupNumber of Participants With RT-PCR Confirmed RSV A and/or B ARI and LRTD Episodes According to SeverityMild (Annual revaccination)15 Participants
RSVPreF3 GroupNumber of Participants With RT-PCR Confirmed RSV A and/or B ARI and LRTD Episodes According to SeverityMild (Single dose)16 Participants
RSVPreF3 GroupNumber of Participants With RT-PCR Confirmed RSV A and/or B ARI and LRTD Episodes According to SeverityModerate (Annual revaccination)23 Participants
RSVPreF3 GroupNumber of Participants With RT-PCR Confirmed RSV A and/or B ARI and LRTD Episodes According to SeveritySevere (Single dose)3 Participants
RSVPreF3 GroupNumber of Participants With RT-PCR Confirmed RSV A and/or B ARI and LRTD Episodes According to SeveritySevere (Annual revaccination)0 Participants
RSVPreF3 GroupNumber of Participants With RT-PCR Confirmed RSV A and/or B ARI and LRTD Episodes According to SeverityModerate (Single dose)29 Participants
Placebo GroupNumber of Participants With RT-PCR Confirmed RSV A and/or B ARI and LRTD Episodes According to SeveritySevere (Annual revaccination)24 Participants
Placebo GroupNumber of Participants With RT-PCR Confirmed RSV A and/or B ARI and LRTD Episodes According to SeverityMild (Single dose)49 Participants
Placebo GroupNumber of Participants With RT-PCR Confirmed RSV A and/or B ARI and LRTD Episodes According to SeverityModerate (Single dose)138 Participants
Placebo GroupNumber of Participants With RT-PCR Confirmed RSV A and/or B ARI and LRTD Episodes According to SeveritySevere (Single dose)28 Participants
Placebo GroupNumber of Participants With RT-PCR Confirmed RSV A and/or B ARI and LRTD Episodes According to SeverityMild (Annual revaccination)48 Participants
Placebo GroupNumber of Participants With RT-PCR Confirmed RSV A and/or B ARI and LRTD Episodes According to SeverityModerate (Annual revaccination)120 Participants
Secondary

Number of Participants With Serious Adverse Events (SAEs)

An SAE is defined as any untoward medical occurrence that resulted in death, was life-threatening, required hospitalization or prolongation of existing hospitalization, resulted in disability/incapacity, was a congenital anomaly/birth defect in the offspring of a study participant, or in other situations that were considered serious per medical or scientific judgment. Any = occurrence of any SAE regardless of intensity grade or relation to study vaccination.

Time frame: From the day of the vaccination up to 6 months after each vaccination (first vaccination: at Day 1, second vaccination: at pre-season 2 and the third vaccination: at pre-season 3 -only applicable for participants in NH])

Population: Analysis is performed on the Exposed Set, which included all participants that received at least the first vaccination. Only participants with data available at specified timepoints were included in analysis. Analysis is presented dose-wise after first dose administration and annual revaccinations.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
RSVPreF3 GroupNumber of Participants With Serious Adverse Events (SAEs)Any SAE (post Dose 2)497 Participants
RSVPreF3 GroupNumber of Participants With Serious Adverse Events (SAEs)Any SAE (post Dose 1)541 Participants
RSVPreF3 GroupNumber of Participants With Serious Adverse Events (SAEs)Any SAE (post Dose 3)179 Participants
Placebo GroupNumber of Participants With Serious Adverse Events (SAEs)Any SAE (post Dose 2)239 Participants
Placebo GroupNumber of Participants With Serious Adverse Events (SAEs)Any SAE (post Dose 1)280 Participants
Placebo GroupNumber of Participants With Serious Adverse Events (SAEs)Any SAE (post Dose 3)75 Participants
RSV_1_dose GroupNumber of Participants With Serious Adverse Events (SAEs)Any SAE (post Dose 1)268 Participants
RSV_1_dose GroupNumber of Participants With Serious Adverse Events (SAEs)Any SAE (post Dose 3)73 Participants
RSV_1_dose GroupNumber of Participants With Serious Adverse Events (SAEs)Any SAE (post Dose 2)229 Participants
Secondary

RSV A Neutralizing Antibody Titers

The RSV A neutralizing antibody titers are expressed as geometric mean titers (GMTs).

Time frame: At pre-dose 1 (Day 1), Day 31 post-dose 1, pre-season 2 (approximately 10-17 months post Day 1 in NH; 12-21 months post Day 1 in SH) and pre-season 3 (approximately 24-27 months post Day 1, only in NH)

Population: Analysis was performed in a subset of participants from the PPSi. Only participants with data available at specified timepoints were included in analysis. Analysis is presented dose-wise after first dose administration and annual revaccinations.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
RSVPreF3 GroupRSV A Neutralizing Antibody TitersPre-Season 2865.8 Titers
RSVPreF3 GroupRSV A Neutralizing Antibody TitersPre-dose 1 at day 1933.5 Titers
RSVPreF3 GroupRSV A Neutralizing Antibody TitersPre-Season 3977.9 Titers
RSVPreF3 GroupRSV A Neutralizing Antibody TitersPost-dose 1 at day 31880.8 Titers
Placebo GroupRSV A Neutralizing Antibody TitersPre-Season 22535.9 Titers
Placebo GroupRSV A Neutralizing Antibody TitersPost-dose 1 at day 318915.5 Titers
Placebo GroupRSV A Neutralizing Antibody TitersPre-dose 1 at day 1899.8 Titers
Placebo GroupRSV A Neutralizing Antibody TitersPre-Season 32049.7 Titers
RSV_1_dose GroupRSV A Neutralizing Antibody TitersPost-dose 1 at day 319652.4 Titers
RSV_1_dose GroupRSV A Neutralizing Antibody TitersPre-dose 1 at day 1929.3 Titers
RSV_1_dose GroupRSV A Neutralizing Antibody TitersPre-Season 32996.1 Titers
RSV_1_dose GroupRSV A Neutralizing Antibody TitersPre-Season 22918.4 Titers
Secondary

RSV B Neutralizing Antibody Titers

RSV B neutralizing antibodies are expressed as GMTs.

Time frame: At pre-dose 1 (Day 1), Day 31 post-dose 1, pre-season 2 (approximately 10-17 months post Day 1 in NH; 12-21 months post Day 1 in SH) and pre-season 3 (approximately 24-27 months post Day 1, only in NH)

Population: Analysis was performed on PPSi. Only participants with data available at specified timepoints were included in analysis. Analysis is presented dose-wise after first dose administration and annual revaccinations.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
RSVPreF3 GroupRSV B Neutralizing Antibody TitersPre-Season 3946.8 Titers
RSVPreF3 GroupRSV B Neutralizing Antibody TitersPre-dose 1 at day 11249.7 Titers
RSVPreF3 GroupRSV B Neutralizing Antibody TitersPost-dose 1 at day 311262.4 Titers
RSVPreF3 GroupRSV B Neutralizing Antibody TitersPre-Season 21229.7 Titers
Placebo GroupRSV B Neutralizing Antibody TitersPre-Season 22955.5 Titers
Placebo GroupRSV B Neutralizing Antibody TitersPre-dose 1 at day 11189.9 Titers
Placebo GroupRSV B Neutralizing Antibody TitersPre-Season 32054.5 Titers
Placebo GroupRSV B Neutralizing Antibody TitersPost-dose 1 at day 319928.9 Titers
RSV_1_dose GroupRSV B Neutralizing Antibody TitersPre-Season 32515.3 Titers
RSV_1_dose GroupRSV B Neutralizing Antibody TitersPost-dose 1 at day 3110253.4 Titers
RSV_1_dose GroupRSV B Neutralizing Antibody TitersPre-Season 22979.2 Titers
RSV_1_dose GroupRSV B Neutralizing Antibody TitersPre-dose 1 at day 11187.2 Titers
Secondary

RSVPreF3 Specific Immunoglobulin G(IgG) Antibody Concentrations

The RSVPreF3 IgG antibody concentrations are expressed as geometric mean concentrations (GMCs) in ELISA units per milliliter (EU/mL).

Time frame: At pre-dose 1 (Day 1), Day 31 post-dose 1, pre-season 2 (approximately 10-17 months post Day 1 in NH; 12-21 months post Day 1 in SH) and pre-season 3 (approximately 24-27 months post Day 1, only in NH)

Population: Analysis was performed in a subset of participants from the Per Protocol Set for immunogenicity (PPSi), which included participants who received at least the first dose of the study intervention, have post-vaccination immunogenicity data available, and did not meet protocol deviations that lead to exclusion. Only participants with data available at specified timepoints were included in analysis. Analysis is presented dose-wise after first dose administration and annual revaccinations.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
RSVPreF3 GroupRSVPreF3 Specific Immunoglobulin G(IgG) Antibody ConcentrationsPre-dose 1 at day 17090.2 EU/mL
RSVPreF3 GroupRSVPreF3 Specific Immunoglobulin G(IgG) Antibody ConcentrationsPost-dose 1 at day 317053.2 EU/mL
RSVPreF3 GroupRSVPreF3 Specific Immunoglobulin G(IgG) Antibody ConcentrationsPre-Season 27594.8 EU/mL
RSVPreF3 GroupRSVPreF3 Specific Immunoglobulin G(IgG) Antibody ConcentrationsPre-Season 38436.6 EU/mL
Placebo GroupRSVPreF3 Specific Immunoglobulin G(IgG) Antibody ConcentrationsPre-Season 321255.0 EU/mL
Placebo GroupRSVPreF3 Specific Immunoglobulin G(IgG) Antibody ConcentrationsPre-dose 1 at day 16956.5 EU/mL
Placebo GroupRSVPreF3 Specific Immunoglobulin G(IgG) Antibody ConcentrationsPre-Season 224103.6 EU/mL
Placebo GroupRSVPreF3 Specific Immunoglobulin G(IgG) Antibody ConcentrationsPost-dose 1 at day 3189361.9 EU/mL
RSV_1_dose GroupRSVPreF3 Specific Immunoglobulin G(IgG) Antibody ConcentrationsPre-Season 328925.3 EU/mL
RSV_1_dose GroupRSVPreF3 Specific Immunoglobulin G(IgG) Antibody ConcentrationsPost-dose 1 at day 3193769.5 EU/mL
RSV_1_dose GroupRSVPreF3 Specific Immunoglobulin G(IgG) Antibody ConcentrationsPre-Season 224523.8 EU/mL
RSV_1_dose GroupRSVPreF3 Specific Immunoglobulin G(IgG) Antibody ConcentrationsPre-dose 1 at day 17101.1 EU/mL

Source: ClinicalTrials.gov · Data processed: May 24, 2026