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A Study to Evaluate the Safety and Immunogenicity for Regimen Selection of Ad26.RSV.preF and/or RSV preF Protein Combinations Followed by Expanded Safety Evaluation in Adults Aged 60 Years and Older

A Randomized, Double-blind, Placebo-controlled Phase 1/2a Study for Safety and Immunogenicity Evaluations for Regimen Selection of Ad26.RSV.preF and/or RSV preF Protein Combinations Followed by Expanded Safety Evaluation in Adults Aged 60 Years and Older

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03502707
Enrollment
669
Registered
2018-04-19
Start date
2018-07-06
Completion date
2022-05-16
Last updated
2025-05-25

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

Conditions

Healthy

Brief summary

The purpose of this study for: Cohort 1 and Cohort 2: to assess the safety and reactogenicity of the intramuscular one- and two-dose regimens, with a booster at Month 12 (Cohort 1) and to select a regimen for Cohort 3. Cohort 2 and part of Cohort 1: to assess respiratory syncytial virus (RSV) neutralizing antibody levels of the regimens containing RSV pre-fusion (preF) protein compared to the one-dose adenovirus serotype 26 respiratory syncytial virus pre-fusion (Ad26.RSV.preF) regimen. Cohort 3: to assess the safety and reactogenicity of the selected regimen and a booster at Month 12 and/or Month 24.

Interventions

BIOLOGICALPlacebo

Placebo for Ad26.RSV.preF, RSV preF protein, Ad26.RSV.preF/RSV preF protein mixture and selected regimen will be administered as sterile saline for intramuscular injection.

BIOLOGICALRSV preF Protein 50 mcg

RSV preF will be administered as a solution for intramuscular injection at a dose of 50 mcg.

BIOLOGICALRSV preF Protein 150 mcg

RSV preF will be administered as a solution for intramuscular injection at a dose of 150 mcg.

Ad26.RSV.preF will be administered as a solution for intramuscular injection at a dose of 1\*10\^11 vp.

BIOLOGICALMixture of Ad26.RSV.preF 5*10^10 vp Plus RSV preF Protein 50 mcg

Mixture of Ad26.RSV.preF (5\*10\^10 vp) and RSV preF protein (50 mcg) will be administered as a solution for intramuscular injection.

BIOLOGICALMixture of Ad26.RSV.preF 5*10^10 vp Plus RSV preF Protein 150 mcg

Mixture of Ad26.RSV.preF (5\*10\^10 vp) and RSV preF protein (150 mcg) will be administered as a solution for intramuscular injection.

BIOLOGICALMixture of Ad26.RSV.preF 1*10^11 vp Plus RSV preF Protein 50 mcg

Mixture of Ad26.RSV.preF (1\*10\^11 vp) and RSV preF protein (50 mcg) will be administered as a solution for intramuscular injection.

BIOLOGICALMixture of Ad26.RSV.preF 1*10^11 vp Plus RSV preF Protein 150 mcg

Mixture of Ad26.RSV.preF (1\*10\^11 vp) and RSV preF protein (150 mcg) will be administered as a solution for intramuscular injection.

BIOLOGICALSelected Regimen

A regimen from Cohort 1 or Cohort 2 will be selected and administered as a solution for intramuscular injection at the selected dose.

Sponsors

Janssen Vaccines & Prevention B.V.
Lead SponsorINDUSTRY

Study design

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

Eligibility

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

Inclusion criteria

* Before randomization, a woman must be postmenopausal (postmenopausal state is defined as no menses for 12 months without an alternative medical cause) and not intending to conceive by any methods * In the investigator's clinical judgment, participant must be either in good or stable health. Participants may have underlying illnesses such as hypertension, type 2 diabetes mellitus, hyperlipoproteinemia, or hypothyroidism, as long as their symptoms and signs are medically controlled. If they are on medication for a condition, the medication dose must have been stable for at least 12 weeks preceding vaccination and expected to remain stable for the duration of the study. Participants will be included on the basis of physical examination, medical history, vital signs, and 12-lead electrocardiogram (ECG) performed at screening * For participants in Cohorts 1 and 2 only: Participant must be healthy on the basis of clinical laboratory tests performed at screening. If the results of the laboratory screening tests are outside the central laboratory normal reference ranges and additionally within the limits of toxicity Grade 2 according to the United States (US) Food and Drug Administration (FDA) toxicity, the participant may be included only if the investigator judges the abnormalities or deviations from normal to be not clinically significant and appropriate and reasonable for the population under study. This determination must be recorded in the participant's source documents and initialed by the investigator * From the time of each vaccination through 3 months after each vaccination, participant agrees not to donate blood * Participant must be willing to provide verifiable identification, have means to be contacted and to contact the investigator during the study

Exclusion criteria

* Per serology testing in Cohorts 1 and 2 and per medical history in Cohort 3: Participant has chronic active hepatitis B or hepatitis C infection, documented by hepatitis B surface antigen and hepatitis C antibody, respectively * Per serology testing in Cohorts 1 and 2 and per medical history in Cohort 3: Participant has human immunodeficiency virus (HIV) type 1 or type 2 infection * Participant has had major psychiatric illness and/or drug or alcohol abuse which in the investigator's opinion would compromise the participant's safety and/or compliance with the study procedures * Participant has a known allergy, or history of anaphylaxis or other serious adverse reactions to vaccines or vaccine components (including any of the constituents of the study vaccine) * Participant has received respiratory syncytial virus (RSV) vaccine in a previous RSV vaccine study at any time prior to randomization

Design outcomes

Primary

MeasureTime frameDescription
Cohort 2 (Group 11 to 15): Respiratory Syncytial Virus (RSV) A2 Strain Neutralization Antibody Titers on Day 29Day 29RSV A2 Strain neutralization antibody titers on Day 29 was reported. Geometric mean titers (GMTs) of RSV A2 neutralizing antibodies were measured using the neutralization assay. The outcome measure was planned to be analyzed for specified arms only.
Cohort 2: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 27 days post-vaccination 2 on Day 57 (Day 64)Number of participants with solicited local and systemic AEs at 7 days post-vaccination 2 in Cohort 2 were reported. An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. Solicited local AEs that included injection site pain/tenderness, erythema and swelling at the study vaccine injection site, are used to assess the reactogenicity of the study vaccine and are pre-defined local (injection site). Systemic events included events such as fatigue, headache, nausea, and myalgia, for which participants were specifically questioned and which will be noted by participants in their participant diary for 7 days post vaccination (day of vaccination and the subsequent 7 days).
Cohort 3: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 17 days post-vaccination 1 on Day 1 (Day 8)Number of participants with solicited local and systemic AEs at 7 days post-vaccination 1 in Cohort 3 were reported. An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. Solicited local AEs that included injection site pain/tenderness, erythema and swelling at the study vaccine injection site, are used to assess the reactogenicity of the study vaccine and are pre-defined local (injection site). Systemic events included events such as fatigue, headache, nausea, and myalgia, for which participants were specifically questioned and which will be noted by participants in their participant diary for 7 days post vaccination (day of vaccination and the subsequent 7 days).
Cohort 3: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 27 days post-vaccination 2 on Day 365 (Day 372)Number of participants with solicited local and systemic AEs at 7 days post-vaccination 2 in Cohort 3 were reported. An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. Solicited local AEs that included injection site pain/tenderness, erythema and swelling at the study vaccine injection site, are used to assess the reactogenicity of the study vaccine and are pre-defined local (injection site). Systemic events included events such as fatigue, headache, nausea, and myalgia, for which participants were specifically questioned and which will be noted by participants in their participant diary for 7 days post vaccination (day of vaccination and the subsequent 7 days).
Cohort 3: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 37 days post-vaccination 3 on Day 730 (Day 737)Number of participants with solicited local and systemic AEs at 7 days post-vaccination 3 in Cohort 3 were reported. An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. Solicited local AEs that included injection site pain/tenderness, erythema and swelling at the study vaccine injection site, are used to assess the reactogenicity of the study vaccine and are pre-defined local (injection site). Systemic events included events such as fatigue, headache, nausea, and myalgia, for which participants were specifically questioned and which will be noted by participants in their participant diary for 7 days post vaccination (day of vaccination and the subsequent 7 days).
Cohort 1: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 128 days post-vaccination 1 on Day 1 (Day 29)Number of participants with unsolicited AEs post-vaccination 1 in Cohort 1 were reported. An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. Unsolicited AEs are all AEs for which the participant is not specifically questioned in the participant diary.
Cohort 1: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 228 days post-vaccination 2 on Day 57 (Day 85)Number of participants with unsolicited AEs post-vaccination 2 in Cohort 1 were reported. An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. Unsolicited AEs are all AEs for which the participant is not specifically questioned in the participant diary.
Cohort 1: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 328 days post-vaccination 3 on Day 365 (Day 393)Number of participants with unsolicited AEs post-vaccination 3 in Cohort 1 were reported. An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. Unsolicited AEs are all AEs for which the participant is not specifically questioned in the participant diary.
Cohort 2: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 128 days post-vaccination 1 on Day 1 (Day 29)Number of participants with unsolicited AEs post-vaccination 1 in Cohort 2 were reported. An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. Unsolicited AEs are all AEs for which the participant is not specifically questioned in the participant diary.
Cohort 2: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 228 days post-vaccination 2 on Day 57 (Day 85)Number of participants with unsolicited AEs post-vaccination 2 in Cohort 2 were reported. An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. Unsolicited AEs are all AEs for which the participant is not specifically questioned in the participant diary.
Cohort 3: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 128 days post-vaccination 1 on Day 1 (Day 29)Number of participants with unsolicited AEs post-vaccination 1 in Cohort 3 were reported. An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. Unsolicited AEs are all AEs for which the participant is not specifically questioned in the participant diary.
Cohort 3: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 228 days post-vaccination 2 on Day 365 (Day 393)Number of participants with unsolicited AEs post-vaccination 2 in Cohort 3 were reported. An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. Unsolicited AEs are all AEs for which the participant is not specifically questioned in the participant diary.
Cohort 3: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 328 days post-vaccination 3 on Day 730 (Day 758)Number of participants with unsolicited AEs post-vaccination 3 in Cohort 3 were reported. An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. Unsolicited AEs are all AEs for which the participant is not specifically questioned in the participant diary.
Cohort 1: Number of Participants With Serious Adverse Events (SAEs)From Day 1 up to Day 730An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. An SAE is an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly/birth defect; suspected transmission of any infectious agent via a medicinal product or medically important. The outcome measure was planned to be analyzed for specified arms only.
Cohort 2 (Groups 11-13 and 16-18): Number of Participants With Serious Adverse Events (SAEs)From Day 1 up to Day 730An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. An SAE is an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly/birth defect; suspected transmission of any infectious agent via a medicinal product or medically important. The outcome measure was planned to be analyzed for specified arms only.
Cohort 2 (Groups 14-15): Number of Participants With Serious Adverse Events (SAEs)From Day 1 up to Day 1095An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. An SAE is an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly/birth defect; suspected transmission of any infectious agent via a medicinal product or medically important. The outcome measure was planned to be analyzed for specified arms only.
Cohort 3: Number of Participants With Serious Adverse Events (SAEs)From Day 1 up to Day 1095An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. An SAE is an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly/birth defect; suspected transmission of any infectious agent via a medicinal product or medically important. The outcome measure was planned to be analyzed for specified arms only.
Cohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 17 days post-vaccination 1 on Day 1 (Day 8)Number of participants with solicited local and systemic AEs at 7 days post-vaccination 1 in Cohort 1 were reported. An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. Solicited local (injection site) AEs that included injection site pain/tenderness, erythema and swelling at the study vaccine injection site, are used to assess the reactogenicity of the study vaccine and are pre-defined local (injection site). Systemic events included events such as fatigue, headache, nausea, and myalgia, for which participants were specifically questioned and which will be noted by participants in their participant diary for 7 days post-vaccination (day of vaccination and the subsequent 7 days).
Cohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 27 days post-vaccination 2 on Day 57 (Day 64)Number of participants with solicited local and systemic AEs at 7 days post-vaccination 2 in Cohort 1 were reported. An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. Solicited local AEs that included injection site pain/tenderness, erythema and swelling at the study vaccine injection site, are used to assess the reactogenicity of the study vaccine and are pre-defined local (injection site). Systemic events included events such as fatigue, headache, nausea, and myalgia, for which participants will be specifically questioned and which were noted by participants in their participant diary for 7 days post vaccination (day of vaccination and the subsequent 7 days).
Cohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 37 days post-vaccination 3 on Day 365 (Day 372)Number of participants with solicited local and systemic AEs at 7 days post-vaccination 3 in Cohort 1 were reported. An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. Solicited local AEs that included injection site pain/tenderness, erythema and swelling at the study vaccine injection site, are used to assess the reactogenicity of the study vaccine and are pre-defined local (injection site). Systemic events included events such as fatigue, headache, nausea, and myalgia, for which participants were specifically questioned and which will be noted by participants in their participant diary for 7 days post vaccination (day of vaccination and the subsequent 7 days).
Cohort 2: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 17 days post-vaccination 1 on Day 1 (Day 8)Number of participants with solicited local and systemic AEs at 7 days post-vaccination 1 in Cohort 2 were reported. An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. Solicited local AEs that included injection site pain/tenderness, erythema and swelling at the study vaccine injection site, are used to assess the reactogenicity of the study vaccine and are pre-defined local (injection site). Systemic events included events such as fatigue, headache, nausea, and myalgia, for which participants were specifically questioned and which will be noted by participants in their participant diary for 7 days post vaccination (day of vaccination and the subsequent 7 days).

Secondary

MeasureTime frameDescription
Cohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDays 1, 15, 29, 57, 85, 183, 365, 393, 547, 730, 744, 758RSV A2 strain neutralization antibody titers at specified timepoints in Cohort 3 was reported. The GMTs of RSV A2 neutralizing antibodies were measured using the neutralization assay.
Cohort 2 (Group 16): RSV A2 Strain Neutralization Antibody Titers on Day 29Day 29RSV A2 strain neutralization antibody titers on Day 29 in Group 16 of Cohort 2 was reported. The GMTs of RSV A2 neutralizing antibodies were measured using the neutralization assay. The outcome measure was planned to be reported for specified arms only.
Cohort 2 (Group 17): RSV A2 Strain Neutralization Antibody Titers on Day 85Day 85RSV A2 strain neutralization antibody titers on Day 85 in Group 17 of Cohort 2 was reported. The GMTs of RSV A2 neutralizing antibodies were measured using the neutralization assay. The outcome measure was planned to be reported for specified arms only.
Cohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDays 1, 15, 29, 57, 85, 183, 365, 393, and 547GMT (ELISA units per liter \[EU/L\]) of RSV F-protein in pre-fusion form as assessed by ELISA at specified timepoints as assessed by ELISA at specified timepoints in Cohort 1 were reported.
Cohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDays 1, 15, 29, 57, 85, 183, 365, and 547GMT (ELISA units per liter \[EU/L\]) of RSV F-protein in pre-fusion form as assessed by ELISA at specified timepoints as assessed by ELISA at specified timepoints in Cohort 2 were reported.
Cohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDays 1, 15, 29, 57, 85, 183, 365, 393, and 547GMT (EU/L) of RSV F-protein in post-fusion form as assessed by ELISA at specified timepoints for Cohort 1 were reported.
Cohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDays 1, 15, 29, 57, 85, 183, 365, and 547GMT (EU/L) of RSV F-protein in post-fusion form as assessed by ELISA at specified timepoints for Cohort 2 were reported.
Cohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDays 1, 15, 29, 57, 85, 183, 365, 393, and 547Breadth of IFN-gamma T-Cells responses against RSV analyzed by ELISpot assay at specified timepoints for Cohort 1 were reported. The ELISPOT assay for F protein-specific gamma interferon-producing T cells was performed using RSV F peptides. The unit was Spot forming units (SFU)/10\^6 peripheral blood mononuclear cells (PBMCs).
Cohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDays 1, 15, 29, 57, 85, 183, 365, 393, 730, 744, and 758Breadth of IFN-gamma T-Cells responses against RSV analyzed by ELISpot assay at specified timepoints for Cohort 3 were reported. The ELISPOT assay for F protein-specific gamma interferon-producing T cells was performed using RSV F peptides. The unit was SFU/10\^6 PBMCs.
Cohort 2 (Group 11-16): Breadth of IFN-gamma T-Cells Responses Against RSV Analyzed by ELISpot Assay on Day 29Day 29Breadth of IFN-gamma T-Cells responses against RSV analyzed by ELISpot Assay on Day 29 in Groups 11-16 of Cohort 2 was reported. The ELISPOT assay for F protein-specific gamma interferon-producing T cells was performed using RSV F peptides. The outcome measure was planned to be analyzed for specified arms only.
Cohort 2 (Group 17): Breadth of IFN-gamma T-Cells Responses Analyzed by ELISpot Assay on Day 85Day 85Breadth of IFN-gamma T-Cells responses analyzed by ELISpot assay on Day 85 in Group 17 of Cohort 2 was reported. The ELISPOT assay for F protein-specific gamma interferon-producing T cells was performed using RSV F peptides. The outcome measure was planned to be analyzed for specified arms only.
Cohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDays 1, 15, 29, 57, 85, 183, 365, 393, and 547RSV A2 strain neutralization antibody titers at specified timepoints in Cohort 1 was reported. The GMTs of RSV A2 neutralizing antibodies were measured using the neutralization assay.

Countries

United States

Participant flow

Participants by arm

ArmCount
Cohort 1: Pooled Placebo
Participants received a single intramuscular (IM) injection of placebo on Day 1, Day 57 and at Month 12 in Groups 1, 3, and 6. In Group 8, participants received single IM injection of placebo in each arm on Day 1 and at Month 12 and then a single placebo IM injection in one arm alone on Day 57.
16
Cohort 1: RSV preF Protein 50 mcg
Participants received a single IM injection of respiratory syncytial virus (RSV) pre-fusion (preF) protein 50 micrograms (mcg) on Day 1, Day 57 and at Month 12 in Group 2 of Cohort 1.
8
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)
Participants received a single IM injection of a mixture of adenovirus serotype 26 RSV preF (Ad26.RSV.preF) 5\*10\^10 viral particles (vp) plus RSV preF protein 50 mcg on Day 1, Day 57 and at Month 12 in Group 4 of Cohort 1.
8
Cohort 1: RSV preF Protein 150 mcg
Participants received a single IM injection of RSV preF protein 150 mcg on Day 1, Day 57 and at Month 12 in Group 5 of Cohort 1.
8
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)
Participants received a single IM injection of a mixture of Ad26.RSV.preF 5\*10\^10 vp plus RSV preF protein 150 mcg on Day 1, Day 57 and at Month 12 in Group 7 of Cohort 1.
8
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With Placebo
Participants received a single IM injection of a mixture of Ad26.RSV.preF 1\*10\^11 vp plus RSV preF protein 150 mcg in one arms on Day 1, Day 57, and at Month 12 and placebo IM injection in another arm on Day 1 and at Month 12 in Group 9 of Cohort 1.
8
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo Alone
Participants received a single IM injection of Ad26.RSV.preF 1\*10\^11 vp in one arm and RSV preF protein 150 mcg IM injection in another arm on Day 1 and at Month 12, and placebo IM injection alone on Day 57 in Group 10 of Cohort 1.
8
Cohort 2: Ad26.RSV.preF 1*10^11 vp With Placebo and Placebo Alone
Participants received a single IM injection of Ad26.RSV.preF 1\*10\^11 vp in one arm and placebo in another arm on Day 1, followed by single IM injection of placebo alone on Day 57 in Group 11 of Cohort 2.
24
Cohort 2:Ad26.RSV.preF 5*10^10vp + RSV preF Protein 50mcg(Mixture) With Placebo and Placebo Alone
Participants received a single IM injection of a mixture of Ad26.RSV.preF 5\*10\^10 vp plus RSV preF protein 50 mcg in one arm and single IM injection of placebo in another arm on Day 1, followed by a single IM injection of placebo alone on Day 57 in Group 12 of Cohort 2.
42
Cohort 2:Ad26.RSV.preF 1*10^11vp + RSV preF Protein 50mcg(Mixture) With Placebo and Placebo Alone
Participants received a single IM injection of a mixture of Ad26.RSV.preF 1\*10\^11 vp plus RSV preF protein 50 mcg in one arm and single IM injection of placebo in another arm on Day 1, followed by a single IM injection of placebo alone on Day 57 in Group 13 of Cohort 2.
42
Cohort 2: Ad26.RSV.preF 1*10^11vp + RSV preF Protein 150mcg (Mixture) With Placebo and Placebo Alone
Participants received a single IM injection of a mixture of Ad26.RSV.preF 1\*10\^11 vp plus RSV preF protein 150 mcg in one arm and single IM injection of placebo in another arm on Day 1, followed by a single IM injection of placebo alone on Day 57 in Group 14 of Cohort 2.
42
Cohort 2: Ad26.RSV.preF 5*10^10vp + RSV preF Protein 150mcg (Mixture) With Placebo and Placebo Alone
Participants received a single IM injection of a mixture of Ad26.RSV.preF 5\*10\^10 vp plus RSV preF protein 150 mcg in one arm and single IM injection of placebo in another arm on Day 1, followed by a single IM injection of placebo alone on Day 57 in Group 15 of Cohort 2.
42
Cohort 2: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo Alone
Participants received a single IM injection of Ad26.RSV.preF 1\*10\^11 vp in one arm and RSV preF protein 150 mcg in another arm on Day 1, followed by a single IM injection of placebo alone on Day 57 in Group 16 of Cohort 2.
36
Cohort 2: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With Placebo
Participants received a single IM injection of a mixture of Ad26.RSV.preF 1\*10\^11 vp plus RSV preF protein 150 mcg in one arm on Day 1 and Day 57 and a single IM injection of placebo in another arm on Day 1 in Group 17 of Cohort 2.
36
Cohort 2: Pooled Placebo
Participants received two IM injections of placebo, one on each arm, on Day 1 and a single IM injection of placebo on Day 57 in Group 18 of Cohort 2.
24
Cohort 3: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture)
Participants received a single IM injection of a mixture of Ad26.RSV.preF 1\*10\^11 vp plus RSV preF protein 150 mcg (Cohort 2 selected regimen) on Day 1, Month 12, and Month 24 in Group 19 of Cohort 3.
135
Cohort 3: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) and Placebo
Participants received a single IM injection of a mixture of Ad26.RSV.preF 1\*10\^11 vp plus RSV preF protein 150 mcg (Cohort 2 selected regimen) on Day 1 and Month 24 and a placebo alone on Month 12 in Group 20 of Cohort 3.
136
Cohort 3: Pooled Placebo of Cohort 2 Selected Regimen
Participants received a single IM injection of Cohort 2 selected regimen and a placebo on Day 1, Month 12, and Month 24 in Group 21 of Cohort 3.
44
Total667

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005FG006FG007FG008FG009FG010FG011FG012FG013FG014FG015FG016FG017
Overall StudyAdverse Event000000000000000150
Overall StudyDeath000100001100100100
Overall StudyInitiated Prohibited Medication000000000000000010
Overall StudyLost to Follow-up000000050212110492
Overall StudyOther000000001120000410
Overall StudyPhysician Decision000000002100001300
Overall StudyProtocol Violation000000000000000100
Overall StudyRandomized but not vaccinated000000000001000001
Overall StudySponsor's Decision100000000100000210
Overall StudyWithdrawal by Subject11000203121223533434418

Baseline characteristics

CharacteristicCohort 1: Pooled PlaceboTotalCohort 3: Pooled Placebo of Cohort 2 Selected RegimenCohort 3: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) and PlaceboCohort 3: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture)Cohort 2: Pooled PlaceboCohort 2: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 2: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 2: Ad26.RSV.preF 5*10^10vp + RSV preF Protein 150mcg (Mixture) With Placebo and Placebo AloneCohort 2: Ad26.RSV.preF 1*10^11vp + RSV preF Protein 150mcg (Mixture) With Placebo and Placebo AloneCohort 2:Ad26.RSV.preF 1*10^11vp + RSV preF Protein 50mcg(Mixture) With Placebo and Placebo AloneCohort 2:Ad26.RSV.preF 5*10^10vp + RSV preF Protein 50mcg(Mixture) With Placebo and Placebo AloneCohort 2: Ad26.RSV.preF 1*10^11 vp With Placebo and Placebo AloneCohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: RSV preF Protein 150 mcgCohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: RSV preF Protein 50 mcg
Age, Continuous67.4 years
STANDARD_DEVIATION 7.22
68.3 years
STANDARD_DEVIATION 6.4
69.3 years
STANDARD_DEVIATION 6.12
68.4 years
STANDARD_DEVIATION 6.25
67.9 years
STANDARD_DEVIATION 6.43
69 years
STANDARD_DEVIATION 7.08
66.5 years
STANDARD_DEVIATION 5.03
69 years
STANDARD_DEVIATION 6.49
71 years
STANDARD_DEVIATION 7.58
67.5 years
STANDARD_DEVIATION 5.71
68.5 years
STANDARD_DEVIATION 6.96
69 years
STANDARD_DEVIATION 6.9
68.5 years
STANDARD_DEVIATION 6.29
66.1 years
STANDARD_DEVIATION 6.17
64.5 years
STANDARD_DEVIATION 3.78
67.3 years
STANDARD_DEVIATION 3.88
69.4 years
STANDARD_DEVIATION 6.23
67.4 years
STANDARD_DEVIATION 6.21
67 years
STANDARD_DEVIATION 6.05
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants38 Participants1 Participants9 Participants3 Participants4 Participants1 Participants4 Participants3 Participants6 Participants2 Participants1 Participants2 Participants0 Participants1 Participants0 Participants0 Participants1 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
16 Participants628 Participants43 Participants127 Participants132 Participants20 Participants35 Participants32 Participants39 Participants36 Participants39 Participants41 Participants22 Participants8 Participants7 Participants8 Participants8 Participants7 Participants8 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants4 Participants0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants1 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
1 Participants13 Participants2 Participants1 Participants2 Participants0 Participants0 Participants0 Participants2 Participants1 Participants1 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants2 Participants
Race (NIH/OMB)
Black or African American
2 Participants62 Participants0 Participants16 Participants11 Participants3 Participants5 Participants2 Participants3 Participants2 Participants0 Participants3 Participants4 Participants4 Participants4 Participants0 Participants1 Participants0 Participants2 Participants
Race (NIH/OMB)
More than one race
0 Participants5 Participants1 Participants1 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
1 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
12 Participants581 Participants41 Participants117 Participants121 Participants21 Participants31 Participants34 Participants36 Participants38 Participants40 Participants37 Participants20 Participants4 Participants3 Participants7 Participants7 Participants8 Participants4 Participants
Region of Enrollment
UNITED STATES
16 Participants667 Participants44 Participants136 Participants135 Participants24 Participants36 Participants36 Participants42 Participants42 Participants42 Participants42 Participants24 Participants8 Participants8 Participants8 Participants8 Participants8 Participants8 Participants
Sex: Female, Male
Female
8 Participants400 Participants24 Participants78 Participants83 Participants13 Participants28 Participants20 Participants27 Participants28 Participants27 Participants24 Participants13 Participants4 Participants5 Participants5 Participants5 Participants4 Participants4 Participants
Sex: Female, Male
Male
8 Participants267 Participants20 Participants58 Participants52 Participants11 Participants8 Participants16 Participants15 Participants14 Participants15 Participants18 Participants11 Participants4 Participants3 Participants3 Participants3 Participants4 Participants4 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
EG006
affected / at risk
EG007
affected / at risk
EG008
affected / at risk
EG009
affected / at risk
EG010
affected / at risk
EG011
affected / at risk
EG012
affected / at risk
EG013
affected / at risk
EG014
affected / at risk
EG015
affected / at risk
EG016
affected / at risk
EG017
affected / at risk
deaths
Total, all-cause mortality
0 / 160 / 80 / 81 / 80 / 80 / 80 / 80 / 241 / 421 / 420 / 420 / 421 / 360 / 360 / 241 / 1350 / 1360 / 44
other
Total, other adverse events
5 / 165 / 82 / 82 / 84 / 86 / 84 / 812 / 2414 / 4214 / 4215 / 4210 / 4210 / 3615 / 3610 / 2425 / 13527 / 13613 / 44
serious
Total, serious adverse events
3 / 160 / 80 / 82 / 83 / 80 / 80 / 80 / 245 / 425 / 424 / 425 / 427 / 363 / 364 / 2414 / 13516 / 1363 / 44

Outcome results

Primary

Cohort 1: Number of Participants With Serious Adverse Events (SAEs)

An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. An SAE is an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly/birth defect; suspected transmission of any infectious agent via a medicinal product or medically important. The outcome measure was planned to be analyzed for specified arms only.

Time frame: From Day 1 up to Day 730

Population: The full analysis set (FAS) included all participants who were randomized and received at least one dose of vaccine (active or placebo), regardless of the occurrence of protocol deviations or the type of vaccine.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cohort 1: Pooled PlaceboCohort 1: Number of Participants With Serious Adverse Events (SAEs)3 Participants
Cohort 1: RSV preF Protein 50 mcgCohort 1: Number of Participants With Serious Adverse Events (SAEs)0 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Number of Participants With Serious Adverse Events (SAEs)0 Participants
Cohort 1: RSV preF Protein 150 mcgCohort 1: Number of Participants With Serious Adverse Events (SAEs)2 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Number of Participants With Serious Adverse Events (SAEs)3 Participants
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Number of Participants With Serious Adverse Events (SAEs)0 Participants
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Number of Participants With Serious Adverse Events (SAEs)0 Participants
Primary

Cohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1

Number of participants with solicited local and systemic AEs at 7 days post-vaccination 1 in Cohort 1 were reported. An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. Solicited local (injection site) AEs that included injection site pain/tenderness, erythema and swelling at the study vaccine injection site, are used to assess the reactogenicity of the study vaccine and are pre-defined local (injection site). Systemic events included events such as fatigue, headache, nausea, and myalgia, for which participants were specifically questioned and which will be noted by participants in their participant diary for 7 days post-vaccination (day of vaccination and the subsequent 7 days).

Time frame: 7 days post-vaccination 1 on Day 1 (Day 8)

Population: The FAS included all participants who were randomized and received at least one dose of vaccine (active or placebo), regardless of the occurrence of protocol deviations or the type of vaccine.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Cohort 1: Pooled PlaceboCohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1Solicited Local AEs3 Participants
Cohort 1: Pooled PlaceboCohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1Solicited Systemic AEs4 Participants
Cohort 1: RSV preF Protein 50 mcgCohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1Solicited Local AEs2 Participants
Cohort 1: RSV preF Protein 50 mcgCohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1Solicited Systemic AEs0 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1Solicited Local AEs4 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1Solicited Systemic AEs4 Participants
Cohort 1: RSV preF Protein 150 mcgCohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1Solicited Local AEs0 Participants
Cohort 1: RSV preF Protein 150 mcgCohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1Solicited Systemic AEs1 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1Solicited Local AEs5 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1Solicited Systemic AEs4 Participants
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1Solicited Local AEs6 Participants
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1Solicited Systemic AEs5 Participants
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1Solicited Local AEs6 Participants
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1Solicited Systemic AEs5 Participants
Primary

Cohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2

Number of participants with solicited local and systemic AEs at 7 days post-vaccination 2 in Cohort 1 were reported. An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. Solicited local AEs that included injection site pain/tenderness, erythema and swelling at the study vaccine injection site, are used to assess the reactogenicity of the study vaccine and are pre-defined local (injection site). Systemic events included events such as fatigue, headache, nausea, and myalgia, for which participants will be specifically questioned and which were noted by participants in their participant diary for 7 days post vaccination (day of vaccination and the subsequent 7 days).

Time frame: 7 days post-vaccination 2 on Day 57 (Day 64)

Population: The FAS included all participants who were randomized and received at least one dose of vaccine (active or placebo), regardless of the occurrence of protocol deviations or the type of vaccine. Here, 'N' (number of participants analyzed) signifies participants evaluable for this outcome measure.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Cohort 1: Pooled PlaceboCohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2Solicited Local AEs5 Participants
Cohort 1: Pooled PlaceboCohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2Solicited Systemic AEs5 Participants
Cohort 1: RSV preF Protein 50 mcgCohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2Solicited Local AEs1 Participants
Cohort 1: RSV preF Protein 50 mcgCohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2Solicited Systemic AEs0 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2Solicited Local AEs3 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2Solicited Systemic AEs1 Participants
Cohort 1: RSV preF Protein 150 mcgCohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2Solicited Local AEs2 Participants
Cohort 1: RSV preF Protein 150 mcgCohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2Solicited Systemic AEs3 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2Solicited Local AEs3 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2Solicited Systemic AEs4 Participants
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2Solicited Local AEs7 Participants
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2Solicited Systemic AEs3 Participants
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2Solicited Local AEs0 Participants
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2Solicited Systemic AEs1 Participants
Primary

Cohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 3

Number of participants with solicited local and systemic AEs at 7 days post-vaccination 3 in Cohort 1 were reported. An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. Solicited local AEs that included injection site pain/tenderness, erythema and swelling at the study vaccine injection site, are used to assess the reactogenicity of the study vaccine and are pre-defined local (injection site). Systemic events included events such as fatigue, headache, nausea, and myalgia, for which participants were specifically questioned and which will be noted by participants in their participant diary for 7 days post vaccination (day of vaccination and the subsequent 7 days).

Time frame: 7 days post-vaccination 3 on Day 365 (Day 372)

Population: The FAS included all participants who were randomized and received at least one dose of vaccine (active or placebo), regardless of the occurrence of protocol deviations or the type of vaccine. Here, 'N' (number of participants analyzed) signifies participants evaluable for this outcome measure.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Cohort 1: Pooled PlaceboCohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 3Solicited Local AEs1 Participants
Cohort 1: Pooled PlaceboCohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 3Solicited Systemic AEs2 Participants
Cohort 1: RSV preF Protein 50 mcgCohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 3Solicited Local AEs0 Participants
Cohort 1: RSV preF Protein 50 mcgCohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 3Solicited Systemic AEs1 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 3Solicited Local AEs3 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 3Solicited Systemic AEs0 Participants
Cohort 1: RSV preF Protein 150 mcgCohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 3Solicited Local AEs2 Participants
Cohort 1: RSV preF Protein 150 mcgCohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 3Solicited Systemic AEs2 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 3Solicited Local AEs4 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 3Solicited Systemic AEs5 Participants
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 3Solicited Local AEs5 Participants
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 3Solicited Systemic AEs0 Participants
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 3Solicited Local AEs6 Participants
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 3Solicited Systemic AEs3 Participants
Primary

Cohort 1: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 1

Number of participants with unsolicited AEs post-vaccination 1 in Cohort 1 were reported. An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. Unsolicited AEs are all AEs for which the participant is not specifically questioned in the participant diary.

Time frame: 28 days post-vaccination 1 on Day 1 (Day 29)

Population: The FAS included all participants who were randomized and received at least one dose of vaccine (active or placebo), regardless of the occurrence of protocol deviations or the type of vaccine.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cohort 1: Pooled PlaceboCohort 1: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 12 Participants
Cohort 1: RSV preF Protein 50 mcgCohort 1: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 15 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 10 Participants
Cohort 1: RSV preF Protein 150 mcgCohort 1: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 11 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 13 Participants
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 14 Participants
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 13 Participants
Primary

Cohort 1: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 2

Number of participants with unsolicited AEs post-vaccination 2 in Cohort 1 were reported. An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. Unsolicited AEs are all AEs for which the participant is not specifically questioned in the participant diary.

Time frame: 28 days post-vaccination 2 on Day 57 (Day 85)

Population: The FAS included all participants who were randomized and received at least one dose of vaccine (active or placebo), regardless of the occurrence of protocol deviations or the type of vaccine. Here, 'N' (number of participants analyzed) signifies participants evaluable for this outcome measure.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cohort 1: Pooled PlaceboCohort 1: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 22 Participants
Cohort 1: RSV preF Protein 50 mcgCohort 1: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 21 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 22 Participants
Cohort 1: RSV preF Protein 150 mcgCohort 1: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 20 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 22 Participants
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 24 Participants
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 20 Participants
Primary

Cohort 1: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 3

Number of participants with unsolicited AEs post-vaccination 3 in Cohort 1 were reported. An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. Unsolicited AEs are all AEs for which the participant is not specifically questioned in the participant diary.

Time frame: 28 days post-vaccination 3 on Day 365 (Day 393)

Population: The FAS included all participants who were randomized and received at least one dose of vaccine (active or placebo), regardless of the occurrence of protocol deviations or the type of vaccine. Here, 'N' (number of participants analyzed) signifies participants evaluable for this outcome measure.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cohort 1: Pooled PlaceboCohort 1: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 31 Participants
Cohort 1: RSV preF Protein 50 mcgCohort 1: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 30 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 30 Participants
Cohort 1: RSV preF Protein 150 mcgCohort 1: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 31 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 30 Participants
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 31 Participants
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 31 Participants
Primary

Cohort 2 (Group 11 to 15): Respiratory Syncytial Virus (RSV) A2 Strain Neutralization Antibody Titers on Day 29

RSV A2 Strain neutralization antibody titers on Day 29 was reported. Geometric mean titers (GMTs) of RSV A2 neutralizing antibodies were measured using the neutralization assay. The outcome measure was planned to be analyzed for specified arms only.

Time frame: Day 29

Population: The per-protocol RSV immunogenicity (PPI) set included all participants who were randomized and received the complete first dose and for whom immunogenicity data were available. Here, 'N' (number of participants analyzed) signifies participants evaluable for this outcome measure.

ArmMeasureValue (GEOMETRIC_MEAN)
Cohort 1: Pooled PlaceboCohort 2 (Group 11 to 15): Respiratory Syncytial Virus (RSV) A2 Strain Neutralization Antibody Titers on Day 291642 Titers
Cohort 1: RSV preF Protein 50 mcgCohort 2 (Group 11 to 15): Respiratory Syncytial Virus (RSV) A2 Strain Neutralization Antibody Titers on Day 292869 Titers
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 2 (Group 11 to 15): Respiratory Syncytial Virus (RSV) A2 Strain Neutralization Antibody Titers on Day 294813 Titers
Cohort 1: RSV preF Protein 150 mcgCohort 2 (Group 11 to 15): Respiratory Syncytial Virus (RSV) A2 Strain Neutralization Antibody Titers on Day 295189 Titers
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 2 (Group 11 to 15): Respiratory Syncytial Virus (RSV) A2 Strain Neutralization Antibody Titers on Day 294855 Titers
Primary

Cohort 2 (Groups 11-13 and 16-18): Number of Participants With Serious Adverse Events (SAEs)

An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. An SAE is an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly/birth defect; suspected transmission of any infectious agent via a medicinal product or medically important. The outcome measure was planned to be analyzed for specified arms only.

Time frame: From Day 1 up to Day 730

Population: The full analysis set (FAS) included all participants who were randomized and received at least one dose of vaccine (active or placebo), regardless of the occurrence of protocol deviations or the type of vaccine.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cohort 1: Pooled PlaceboCohort 2 (Groups 11-13 and 16-18): Number of Participants With Serious Adverse Events (SAEs)0 Participants
Cohort 1: RSV preF Protein 50 mcgCohort 2 (Groups 11-13 and 16-18): Number of Participants With Serious Adverse Events (SAEs)5 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 2 (Groups 11-13 and 16-18): Number of Participants With Serious Adverse Events (SAEs)5 Participants
Cohort 1: RSV preF Protein 150 mcgCohort 2 (Groups 11-13 and 16-18): Number of Participants With Serious Adverse Events (SAEs)7 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 2 (Groups 11-13 and 16-18): Number of Participants With Serious Adverse Events (SAEs)3 Participants
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 2 (Groups 11-13 and 16-18): Number of Participants With Serious Adverse Events (SAEs)4 Participants
Primary

Cohort 2 (Groups 14-15): Number of Participants With Serious Adverse Events (SAEs)

An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. An SAE is an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly/birth defect; suspected transmission of any infectious agent via a medicinal product or medically important. The outcome measure was planned to be analyzed for specified arms only.

Time frame: From Day 1 up to Day 1095

Population: The FAS included all participants who were randomized and received at least one dose of vaccine (active or placebo), regardless of the occurrence of protocol deviations or the type of vaccine.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cohort 1: Pooled PlaceboCohort 2 (Groups 14-15): Number of Participants With Serious Adverse Events (SAEs)4 Participants
Cohort 1: RSV preF Protein 50 mcgCohort 2 (Groups 14-15): Number of Participants With Serious Adverse Events (SAEs)5 Participants
Primary

Cohort 2: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1

Number of participants with solicited local and systemic AEs at 7 days post-vaccination 1 in Cohort 2 were reported. An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. Solicited local AEs that included injection site pain/tenderness, erythema and swelling at the study vaccine injection site, are used to assess the reactogenicity of the study vaccine and are pre-defined local (injection site). Systemic events included events such as fatigue, headache, nausea, and myalgia, for which participants were specifically questioned and which will be noted by participants in their participant diary for 7 days post vaccination (day of vaccination and the subsequent 7 days).

Time frame: 7 days post-vaccination 1 on Day 1 (Day 8)

Population: The FAS included all participants who were randomized and received at least one dose of vaccine (active or placebo), regardless of the occurrence of protocol deviations or the type of vaccine.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Cohort 1: Pooled PlaceboCohort 2: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1Solicited Local AEs14 Participants
Cohort 1: Pooled PlaceboCohort 2: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1Solicited Systemic AEs11 Participants
Cohort 1: RSV preF Protein 50 mcgCohort 2: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1Solicited Local AEs24 Participants
Cohort 1: RSV preF Protein 50 mcgCohort 2: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1Solicited Systemic AEs23 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 2: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1Solicited Local AEs26 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 2: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1Solicited Systemic AEs20 Participants
Cohort 1: RSV preF Protein 150 mcgCohort 2: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1Solicited Local AEs29 Participants
Cohort 1: RSV preF Protein 150 mcgCohort 2: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1Solicited Systemic AEs22 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 2: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1Solicited Local AEs25 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 2: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1Solicited Systemic AEs21 Participants
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 2: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1Solicited Local AEs20 Participants
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 2: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1Solicited Systemic AEs20 Participants
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 2: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1Solicited Systemic AEs20 Participants
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 2: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1Solicited Local AEs22 Participants
Cohort 2: Pooled PlaceboCohort 2: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1Solicited Local AEs5 Participants
Cohort 2: Pooled PlaceboCohort 2: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1Solicited Systemic AEs11 Participants
Primary

Cohort 2: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2

Number of participants with solicited local and systemic AEs at 7 days post-vaccination 2 in Cohort 2 were reported. An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. Solicited local AEs that included injection site pain/tenderness, erythema and swelling at the study vaccine injection site, are used to assess the reactogenicity of the study vaccine and are pre-defined local (injection site). Systemic events included events such as fatigue, headache, nausea, and myalgia, for which participants were specifically questioned and which will be noted by participants in their participant diary for 7 days post vaccination (day of vaccination and the subsequent 7 days).

Time frame: 7 days post-vaccination 2 on Day 57 (Day 64)

Population: The FAS included all participants who were randomized and received at least one dose of vaccine (active or placebo), regardless of the occurrence of protocol deviations or the type of vaccine. Here, 'N' (number of participants analyzed) signifies participants evaluable for this outcome measure.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Cohort 1: Pooled PlaceboCohort 2: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2Solicited Systemic AEs3 Participants
Cohort 1: Pooled PlaceboCohort 2: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2Solicited Local AEs1 Participants
Cohort 1: RSV preF Protein 50 mcgCohort 2: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2Solicited Local AEs0 Participants
Cohort 1: RSV preF Protein 50 mcgCohort 2: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2Solicited Systemic AEs9 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 2: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2Solicited Local AEs3 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 2: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2Solicited Systemic AEs8 Participants
Cohort 1: RSV preF Protein 150 mcgCohort 2: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2Solicited Systemic AEs7 Participants
Cohort 1: RSV preF Protein 150 mcgCohort 2: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2Solicited Local AEs3 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 2: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2Solicited Local AEs3 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 2: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2Solicited Systemic AEs5 Participants
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 2: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2Solicited Local AEs2 Participants
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 2: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2Solicited Systemic AEs5 Participants
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 2: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2Solicited Systemic AEs13 Participants
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 2: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2Solicited Local AEs23 Participants
Cohort 2: Pooled PlaceboCohort 2: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2Solicited Systemic AEs6 Participants
Cohort 2: Pooled PlaceboCohort 2: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2Solicited Local AEs2 Participants
Primary

Cohort 2: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 1

Number of participants with unsolicited AEs post-vaccination 1 in Cohort 2 were reported. An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. Unsolicited AEs are all AEs for which the participant is not specifically questioned in the participant diary.

Time frame: 28 days post-vaccination 1 on Day 1 (Day 29)

Population: The FAS included all participants who were randomized and received at least one dose of vaccine (active or placebo), regardless of the occurrence of protocol deviations or the type of vaccine.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cohort 1: Pooled PlaceboCohort 2: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 18 Participants
Cohort 1: RSV preF Protein 50 mcgCohort 2: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 111 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 2: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 110 Participants
Cohort 1: RSV preF Protein 150 mcgCohort 2: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 112 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 2: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 18 Participants
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 2: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 110 Participants
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 2: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 112 Participants
Cohort 2: Pooled PlaceboCohort 2: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 13 Participants
Primary

Cohort 2: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 2

Number of participants with unsolicited AEs post-vaccination 2 in Cohort 2 were reported. An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. Unsolicited AEs are all AEs for which the participant is not specifically questioned in the participant diary.

Time frame: 28 days post-vaccination 2 on Day 57 (Day 85)

Population: The FAS included all participants who were randomized and received at least one dose of vaccine (active or placebo), regardless of the occurrence of protocol deviations or the type of vaccine. Here, 'N' (number of participants analyzed) signifies participants evaluable for this outcome measure.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cohort 1: Pooled PlaceboCohort 2: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 26 Participants
Cohort 1: RSV preF Protein 50 mcgCohort 2: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 25 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 2: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 25 Participants
Cohort 1: RSV preF Protein 150 mcgCohort 2: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 26 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 2: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 22 Participants
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 2: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 23 Participants
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 2: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 25 Participants
Cohort 2: Pooled PlaceboCohort 2: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 28 Participants
Primary

Cohort 3: Number of Participants With Serious Adverse Events (SAEs)

An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. An SAE is an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly/birth defect; suspected transmission of any infectious agent via a medicinal product or medically important. The outcome measure was planned to be analyzed for specified arms only.

Time frame: From Day 1 up to Day 1095

Population: The FAS included all participants who were randomized and received at least one dose of vaccine (active or placebo), regardless of the occurrence of protocol deviations or the type of vaccine.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cohort 1: Pooled PlaceboCohort 3: Number of Participants With Serious Adverse Events (SAEs)14 Participants
Cohort 1: RSV preF Protein 50 mcgCohort 3: Number of Participants With Serious Adverse Events (SAEs)16 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 3: Number of Participants With Serious Adverse Events (SAEs)3 Participants
Primary

Cohort 3: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1

Number of participants with solicited local and systemic AEs at 7 days post-vaccination 1 in Cohort 3 were reported. An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. Solicited local AEs that included injection site pain/tenderness, erythema and swelling at the study vaccine injection site, are used to assess the reactogenicity of the study vaccine and are pre-defined local (injection site). Systemic events included events such as fatigue, headache, nausea, and myalgia, for which participants were specifically questioned and which will be noted by participants in their participant diary for 7 days post vaccination (day of vaccination and the subsequent 7 days).

Time frame: 7 days post-vaccination 1 on Day 1 (Day 8)

Population: The FAS included all participants who were randomized and received at least one dose of vaccine (active or placebo), regardless of the occurrence of protocol deviations or the type of vaccine. Here, 'N' (number of participants analyzed) signifies participants evaluable for this outcome measure.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Cohort 1: Pooled PlaceboCohort 3: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1Solicited Local AEs95 Participants
Cohort 1: Pooled PlaceboCohort 3: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1Solicited Systemic AEs95 Participants
Cohort 1: RSV preF Protein 50 mcgCohort 3: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1Solicited Local AEs94 Participants
Cohort 1: RSV preF Protein 50 mcgCohort 3: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1Solicited Systemic AEs88 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 3: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1Solicited Local AEs9 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 3: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 1Solicited Systemic AEs12 Participants
Primary

Cohort 3: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2

Number of participants with solicited local and systemic AEs at 7 days post-vaccination 2 in Cohort 3 were reported. An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. Solicited local AEs that included injection site pain/tenderness, erythema and swelling at the study vaccine injection site, are used to assess the reactogenicity of the study vaccine and are pre-defined local (injection site). Systemic events included events such as fatigue, headache, nausea, and myalgia, for which participants were specifically questioned and which will be noted by participants in their participant diary for 7 days post vaccination (day of vaccination and the subsequent 7 days).

Time frame: 7 days post-vaccination 2 on Day 365 (Day 372)

Population: The FAS included all participants who were randomized and received at least one dose of vaccine (active or placebo), regardless of the occurrence of protocol deviations or the type of vaccine. Here, 'N' (number of participants analyzed) signifies participants evaluable for this outcome measure.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Cohort 1: Pooled PlaceboCohort 3: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2Solicited Local AEs74 Participants
Cohort 1: Pooled PlaceboCohort 3: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2Solicited Systemic AEs56 Participants
Cohort 1: RSV preF Protein 50 mcgCohort 3: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2Solicited Local AEs23 Participants
Cohort 1: RSV preF Protein 50 mcgCohort 3: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2Solicited Systemic AEs38 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 3: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2Solicited Local AEs6 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 3: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 2Solicited Systemic AEs10 Participants
Primary

Cohort 3: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 3

Number of participants with solicited local and systemic AEs at 7 days post-vaccination 3 in Cohort 3 were reported. An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. Solicited local AEs that included injection site pain/tenderness, erythema and swelling at the study vaccine injection site, are used to assess the reactogenicity of the study vaccine and are pre-defined local (injection site). Systemic events included events such as fatigue, headache, nausea, and myalgia, for which participants were specifically questioned and which will be noted by participants in their participant diary for 7 days post vaccination (day of vaccination and the subsequent 7 days).

Time frame: 7 days post-vaccination 3 on Day 730 (Day 737)

Population: The FAS included all participants who were randomized and received at least one dose of vaccine (active or placebo), regardless of the occurrence of protocol deviations or the type of vaccine. Here, 'N' (number of participants analyzed) signifies participants evaluable for this outcome measure.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Cohort 1: Pooled PlaceboCohort 3: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 3Solicited Local AEs42 Participants
Cohort 1: Pooled PlaceboCohort 3: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 3Solicited Systemic AEs32 Participants
Cohort 1: RSV preF Protein 50 mcgCohort 3: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 3Solicited Local AEs48 Participants
Cohort 1: RSV preF Protein 50 mcgCohort 3: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 3Solicited Systemic AEs46 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 3: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 3Solicited Local AEs4 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 3: Number of Participants With Solicited Local (Injection Site) and Systemic AEs at 7 Days Post-vaccination 3Solicited Systemic AEs6 Participants
Primary

Cohort 3: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 1

Number of participants with unsolicited AEs post-vaccination 1 in Cohort 3 were reported. An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. Unsolicited AEs are all AEs for which the participant is not specifically questioned in the participant diary.

Time frame: 28 days post-vaccination 1 on Day 1 (Day 29)

Population: The FAS included all participants who were randomized and received at least one dose of vaccine (active or placebo), regardless of the occurrence of protocol deviations or the type of vaccine. Here, 'N' (number of participants analyzed) signifies participants evaluable for this outcome measure.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cohort 1: Pooled PlaceboCohort 3: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 132 Participants
Cohort 1: RSV preF Protein 50 mcgCohort 3: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 123 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 3: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 17 Participants
Primary

Cohort 3: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 2

Number of participants with unsolicited AEs post-vaccination 2 in Cohort 3 were reported. An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. Unsolicited AEs are all AEs for which the participant is not specifically questioned in the participant diary.

Time frame: 28 days post-vaccination 2 on Day 365 (Day 393)

Population: The FAS included all participants who were randomized and received at least one dose of vaccine (active or placebo), regardless of the occurrence of protocol deviations or the type of vaccine. Here, 'N' (number of participants analyzed) signifies participants evaluable for this outcome measure.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cohort 1: Pooled PlaceboCohort 3: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 29 Participants
Cohort 1: RSV preF Protein 50 mcgCohort 3: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 210 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 3: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 24 Participants
Primary

Cohort 3: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 3

Number of participants with unsolicited AEs post-vaccination 3 in Cohort 3 were reported. An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. Unsolicited AEs are all AEs for which the participant is not specifically questioned in the participant diary.

Time frame: 28 days post-vaccination 3 on Day 730 (Day 758)

Population: The FAS included all participants who were randomized and received at least one dose of vaccine (active or placebo), regardless of the occurrence of protocol deviations or the type of vaccine. Here, 'N' (number of participants analyzed) signifies participants evaluable for this outcome measure.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cohort 1: Pooled PlaceboCohort 3: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 38 Participants
Cohort 1: RSV preF Protein 50 mcgCohort 3: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 38 Participants
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 3: Number of Participants With Unsolicited AEs at 28 Days Post-vaccination 32 Participants
Secondary

Cohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified Timepoints

Breadth of IFN-gamma T-Cells responses against RSV analyzed by ELISpot assay at specified timepoints for Cohort 1 were reported. The ELISPOT assay for F protein-specific gamma interferon-producing T cells was performed using RSV F peptides. The unit was Spot forming units (SFU)/10\^6 peripheral blood mononuclear cells (PBMCs).

Time frame: Days 1, 15, 29, 57, 85, 183, 365, 393, and 547

Population: PPI set included all participants who were randomized and received the complete first dose and for whom immunogenicity data were available. Here, 'n' (number analyzed) signifies participants evaluable for this outcome measure at specified timepoints.

ArmMeasureGroupValue (MEDIAN)
Cohort 1: Pooled PlaceboCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 5742 SFU/10^6 PBMCs
Cohort 1: Pooled PlaceboCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 36561 SFU/10^6 PBMCs
Cohort 1: Pooled PlaceboCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 2946 SFU/10^6 PBMCs
Cohort 1: Pooled PlaceboCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 8552 SFU/10^6 PBMCs
Cohort 1: Pooled PlaceboCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 39354 SFU/10^6 PBMCs
Cohort 1: Pooled PlaceboCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 18356 SFU/10^6 PBMCs
Cohort 1: Pooled PlaceboCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 54742 SFU/10^6 PBMCs
Cohort 1: Pooled PlaceboCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 1557 SFU/10^6 PBMCs
Cohort 1: Pooled PlaceboCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 148 SFU/10^6 PBMCs
Cohort 1: RSV preF Protein 50 mcgCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 183105 SFU/10^6 PBMCs
Cohort 1: RSV preF Protein 50 mcgCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 85199 SFU/10^6 PBMCs
Cohort 1: RSV preF Protein 50 mcgCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 547199 SFU/10^6 PBMCs
Cohort 1: RSV preF Protein 50 mcgCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 15341 SFU/10^6 PBMCs
Cohort 1: RSV preF Protein 50 mcgCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 393159 SFU/10^6 PBMCs
Cohort 1: RSV preF Protein 50 mcgCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 29211 SFU/10^6 PBMCs
Cohort 1: RSV preF Protein 50 mcgCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 139 SFU/10^6 PBMCs
Cohort 1: RSV preF Protein 50 mcgCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 365152 SFU/10^6 PBMCs
Cohort 1: RSV preF Protein 50 mcgCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 5778 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 365270 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 85398 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 116 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 15432 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 183281 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 393492 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 57180 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 29183 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 547262 SFU/10^6 PBMCs
Cohort 1: RSV preF Protein 150 mcgCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 183172 SFU/10^6 PBMCs
Cohort 1: RSV preF Protein 150 mcgCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 126 SFU/10^6 PBMCs
Cohort 1: RSV preF Protein 150 mcgCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 15316 SFU/10^6 PBMCs
Cohort 1: RSV preF Protein 150 mcgCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 29153 SFU/10^6 PBMCs
Cohort 1: RSV preF Protein 150 mcgCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 57130 SFU/10^6 PBMCs
Cohort 1: RSV preF Protein 150 mcgCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 85293 SFU/10^6 PBMCs
Cohort 1: RSV preF Protein 150 mcgCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 365158 SFU/10^6 PBMCs
Cohort 1: RSV preF Protein 150 mcgCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 393472 SFU/10^6 PBMCs
Cohort 1: RSV preF Protein 150 mcgCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 547245 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 393720 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 57244 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 171 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 29271 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 85556 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 547374 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 365297 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 183301 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 15390 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 15399 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 57167 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 393400 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 134 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 365231 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 29271 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 85432 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 547202 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 183305 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 15480 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 183215 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 29416 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 365249 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 57315 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 393443 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 156 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 547258 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 85274 SFU/10^6 PBMCs
Secondary

Cohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified Timepoints

GMT (EU/L) of RSV F-protein in post-fusion form as assessed by ELISA at specified timepoints for Cohort 1 were reported.

Time frame: Days 1, 15, 29, 57, 85, 183, 365, 393, and 547

Population: PPI set included all participants who were randomized and received the complete first dose and for whom immunogenicity data were available. Here, 'n' (number analyzed) signifies participants evaluable for this outcome measure at specified timepoints.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Cohort 1: Pooled PlaceboCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 57217 EU/L
Cohort 1: Pooled PlaceboCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 365226 EU/L
Cohort 1: Pooled PlaceboCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 29214 EU/L
Cohort 1: Pooled PlaceboCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 85220 EU/L
Cohort 1: Pooled PlaceboCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 393237 EU/L
Cohort 1: Pooled PlaceboCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 183254 EU/L
Cohort 1: Pooled PlaceboCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 547243 EU/L
Cohort 1: Pooled PlaceboCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 15194 EU/L
Cohort 1: Pooled PlaceboCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1222 EU/L
Cohort 1: RSV preF Protein 50 mcgCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 183710 EU/L
Cohort 1: RSV preF Protein 50 mcgCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 851020 EU/L
Cohort 1: RSV preF Protein 50 mcgCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 547607 EU/L
Cohort 1: RSV preF Protein 50 mcgCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 151208 EU/L
Cohort 1: RSV preF Protein 50 mcgCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 393874 EU/L
Cohort 1: RSV preF Protein 50 mcgCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 29986 EU/L
Cohort 1: RSV preF Protein 50 mcgCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1206 EU/L
Cohort 1: RSV preF Protein 50 mcgCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 365225 EU/L
Cohort 1: RSV preF Protein 50 mcgCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 571164 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 3651316 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 852122 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1316 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 154841 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1831827 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 3932385 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 573098 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 293929 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 5471382 EU/L
Cohort 1: RSV preF Protein 150 mcgCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1831163 EU/L
Cohort 1: RSV preF Protein 150 mcgCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1197 EU/L
Cohort 1: RSV preF Protein 150 mcgCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 152985 EU/L
Cohort 1: RSV preF Protein 150 mcgCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 292303 EU/L
Cohort 1: RSV preF Protein 150 mcgCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 57964 EU/L
Cohort 1: RSV preF Protein 150 mcgCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 851906 EU/L
Cohort 1: RSV preF Protein 150 mcgCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 365657 EU/L
Cohort 1: RSV preF Protein 150 mcgCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 3931631 EU/L
Cohort 1: RSV preF Protein 150 mcgCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 547863 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 3931408 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 57864 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1210 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 291698 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 851332 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 547723 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 365530 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 183844 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 153032 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 151739 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 57866 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 3931330 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1239 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 365740 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 291499 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 851384 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 5471001 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 183857 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 15973 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 183547 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 291033 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 365398 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 57693 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 3931140 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1159 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 547792 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 85786 EU/L
Secondary

Cohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified Timepoints

GMT (ELISA units per liter \[EU/L\]) of RSV F-protein in pre-fusion form as assessed by ELISA at specified timepoints as assessed by ELISA at specified timepoints in Cohort 1 were reported.

Time frame: Days 1, 15, 29, 57, 85, 183, 365, 393, and 547

Population: PPI set included all participants who were randomized and received the complete first dose and for whom immunogenicity data were available. Here, 'n' (number analyzed) signifies participants evaluable for this outcome measure at specified timepoints.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Cohort 1: Pooled PlaceboCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 57246 EU/L
Cohort 1: Pooled PlaceboCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 365271 EU/L
Cohort 1: Pooled PlaceboCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 29219 EU/L
Cohort 1: Pooled PlaceboCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 85268 EU/L
Cohort 1: Pooled PlaceboCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 393333 EU/L
Cohort 1: Pooled PlaceboCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 183281 EU/L
Cohort 1: Pooled PlaceboCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 547304 EU/L
Cohort 1: Pooled PlaceboCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 15261 EU/L
Cohort 1: Pooled PlaceboCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1245 EU/L
Cohort 1: RSV preF Protein 50 mcgCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1831045 EU/L
Cohort 1: RSV preF Protein 50 mcgCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 852048 EU/L
Cohort 1: RSV preF Protein 50 mcgCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 547952 EU/L
Cohort 1: RSV preF Protein 50 mcgCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 152144 EU/L
Cohort 1: RSV preF Protein 50 mcgCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 3931259 EU/L
Cohort 1: RSV preF Protein 50 mcgCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 291697 EU/L
Cohort 1: RSV preF Protein 50 mcgCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1263 EU/L
Cohort 1: RSV preF Protein 50 mcgCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 365365 EU/L
Cohort 1: RSV preF Protein 50 mcgCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 571694 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 3651669 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 853768 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1360 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 156121 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1832105 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 3933523 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 574715 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 294132 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 5472486 EU/L
Cohort 1: RSV preF Protein 150 mcgCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1831715 EU/L
Cohort 1: RSV preF Protein 150 mcgCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1215 EU/L
Cohort 1: RSV preF Protein 150 mcgCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 154315 EU/L
Cohort 1: RSV preF Protein 150 mcgCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 293352 EU/L
Cohort 1: RSV preF Protein 150 mcgCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 573450 EU/L
Cohort 1: RSV preF Protein 150 mcgCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 853996 EU/L
Cohort 1: RSV preF Protein 150 mcgCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 365993 EU/L
Cohort 1: RSV preF Protein 150 mcgCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 3932856 EU/L
Cohort 1: RSV preF Protein 150 mcgCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 5471813 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 3932796 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 573469 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1274 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 293575 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 853215 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 5471304 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 3651192 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1831415 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 156268 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 153507 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 572339 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 3932970 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1301 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 3651415 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 292396 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 852672 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 5472241 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1831654 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 153396 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1831095 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 292257 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 365928 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 572145 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 3931952 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1242 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 5471879 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 851688 EU/L
Secondary

Cohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified Timepoints

RSV A2 strain neutralization antibody titers at specified timepoints in Cohort 1 was reported. The GMTs of RSV A2 neutralizing antibodies were measured using the neutralization assay.

Time frame: Days 1, 15, 29, 57, 85, 183, 365, 393, and 547

Population: PPI set included all participants who were randomized and received the complete first dose and for whom immunogenicity data were available. Here, 'N' (number of participants analyzed) signifies participants evaluable for this outcome measure. Here, 'n' (number analyzed) signifies participants evaluable for this outcome measure at specified timepoints.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Cohort 1: Pooled PlaceboCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 57431 Titers
Cohort 1: Pooled PlaceboCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 365502 Titers
Cohort 1: Pooled PlaceboCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 29412 Titers
Cohort 1: Pooled PlaceboCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 85536 Titers
Cohort 1: Pooled PlaceboCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 393442 Titers
Cohort 1: Pooled PlaceboCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 183529 Titers
Cohort 1: Pooled PlaceboCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 547637 Titers
Cohort 1: Pooled PlaceboCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 15197 Titers
Cohort 1: Pooled PlaceboCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 1553 Titers
Cohort 1: RSV preF Protein 50 mcgCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 1832473 Titers
Cohort 1: RSV preF Protein 50 mcgCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 854142 Titers
Cohort 1: RSV preF Protein 50 mcgCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 5472149 Titers
Cohort 1: RSV preF Protein 50 mcgCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 154850 Titers
Cohort 1: RSV preF Protein 50 mcgCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 3932548 Titers
Cohort 1: RSV preF Protein 50 mcgCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 293326 Titers
Cohort 1: RSV preF Protein 50 mcgCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 1600 Titers
Cohort 1: RSV preF Protein 50 mcgCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 365595 Titers
Cohort 1: RSV preF Protein 50 mcgCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 573441 Titers
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 3652628 Titers
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 854865 Titers
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 1917 Titers
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 15823 Titers
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 1833889 Titers
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 39311814 Titers
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 575105 Titers
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 295716 Titers
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 5474613 Titers
Cohort 1: RSV preF Protein 150 mcgCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 1832444 Titers
Cohort 1: RSV preF Protein 150 mcgCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 1434 Titers
Cohort 1: RSV preF Protein 150 mcgCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 15644 Titers
Cohort 1: RSV preF Protein 150 mcgCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 294311 Titers
Cohort 1: RSV preF Protein 150 mcgCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 573382 Titers
Cohort 1: RSV preF Protein 150 mcgCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 854574 Titers
Cohort 1: RSV preF Protein 150 mcgCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 3651395 Titers
Cohort 1: RSV preF Protein 150 mcgCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 3933468 Titers
Cohort 1: RSV preF Protein 150 mcgCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 5472286 Titers
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 3933103 Titers
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 575276 Titers
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 1457 Titers
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 295933 Titers
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 854582 Titers
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 5472359 Titers
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 3652531 Titers
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 1833438 Titers
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 151152 Titers
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 154404 Titers
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 573382 Titers
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 3932994 Titers
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 1577 Titers
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 3652039 Titers
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 292399 Titers
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 854667 Titers
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 5474080 Titers
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 1832759 Titers
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 157782 Titers
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 1832073 Titers
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 293678 Titers
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 3651665 Titers
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 573980 Titers
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 3933081 Titers
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 1522 Titers
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 5473548 Titers
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 1: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 853905 Titers
Secondary

Cohort 2 (Group 11-16): Breadth of IFN-gamma T-Cells Responses Against RSV Analyzed by ELISpot Assay on Day 29

Breadth of IFN-gamma T-Cells responses against RSV analyzed by ELISpot Assay on Day 29 in Groups 11-16 of Cohort 2 was reported. The ELISPOT assay for F protein-specific gamma interferon-producing T cells was performed using RSV F peptides. The outcome measure was planned to be analyzed for specified arms only.

Time frame: Day 29

Population: The PPI set included all participants who were randomized and received the complete first dose and for whom immunogenicity data were available. Here, 'N' (number of participants analyzed) signifies participants evaluable for this outcome measure.

ArmMeasureValue (MEDIAN)
Cohort 1: Pooled PlaceboCohort 2 (Group 11-16): Breadth of IFN-gamma T-Cells Responses Against RSV Analyzed by ELISpot Assay on Day 29320 SFU/10^6 PBMCs
Cohort 1: RSV preF Protein 50 mcgCohort 2 (Group 11-16): Breadth of IFN-gamma T-Cells Responses Against RSV Analyzed by ELISpot Assay on Day 29354 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 2 (Group 11-16): Breadth of IFN-gamma T-Cells Responses Against RSV Analyzed by ELISpot Assay on Day 29315 SFU/10^6 PBMCs
Cohort 1: RSV preF Protein 150 mcgCohort 2 (Group 11-16): Breadth of IFN-gamma T-Cells Responses Against RSV Analyzed by ELISpot Assay on Day 29290 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 2 (Group 11-16): Breadth of IFN-gamma T-Cells Responses Against RSV Analyzed by ELISpot Assay on Day 29390 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 2 (Group 11-16): Breadth of IFN-gamma T-Cells Responses Against RSV Analyzed by ELISpot Assay on Day 29298 SFU/10^6 PBMCs
Secondary

Cohort 2 (Group 16): RSV A2 Strain Neutralization Antibody Titers on Day 29

RSV A2 strain neutralization antibody titers on Day 29 in Group 16 of Cohort 2 was reported. The GMTs of RSV A2 neutralizing antibodies were measured using the neutralization assay. The outcome measure was planned to be reported for specified arms only.

Time frame: Day 29

Population: PPI set included all participants who were randomized and received the complete first dose and for whom immunogenicity data were available. Here, 'N' (number of participants analyzed) signifies participants evaluable for this outcome measure.

ArmMeasureValue (GEOMETRIC_MEAN)
Cohort 1: Pooled PlaceboCohort 2 (Group 16): RSV A2 Strain Neutralization Antibody Titers on Day 296053 Titers
Secondary

Cohort 2 (Group 17): Breadth of IFN-gamma T-Cells Responses Analyzed by ELISpot Assay on Day 85

Breadth of IFN-gamma T-Cells responses analyzed by ELISpot assay on Day 85 in Group 17 of Cohort 2 was reported. The ELISPOT assay for F protein-specific gamma interferon-producing T cells was performed using RSV F peptides. The outcome measure was planned to be analyzed for specified arms only.

Time frame: Day 85

Population: PPI set included all participants who were randomized and received the complete first dose and for whom immunogenicity data were available. Here, 'N' (number of participants analyzed) signifies participants evaluable for this outcome measure.

ArmMeasureValue (MEDIAN)
Cohort 1: Pooled PlaceboCohort 2 (Group 17): Breadth of IFN-gamma T-Cells Responses Analyzed by ELISpot Assay on Day 85495 SFU/10^6 PBMCs
Secondary

Cohort 2 (Group 17): RSV A2 Strain Neutralization Antibody Titers on Day 85

RSV A2 strain neutralization antibody titers on Day 85 in Group 17 of Cohort 2 was reported. The GMTs of RSV A2 neutralizing antibodies were measured using the neutralization assay. The outcome measure was planned to be reported for specified arms only.

Time frame: Day 85

Population: PPI set included all participants who were randomized and received the complete first dose and for whom immunogenicity data were available. Here, 'N' (number of participants analyzed) signifies participants evaluable for this outcome measure.

ArmMeasureValue (GEOMETRIC_MEAN)
Cohort 1: Pooled PlaceboCohort 2 (Group 17): RSV A2 Strain Neutralization Antibody Titers on Day 854616 Titers
Secondary

Cohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified Timepoints

GMT (EU/L) of RSV F-protein in post-fusion form as assessed by ELISA at specified timepoints for Cohort 2 were reported.

Time frame: Days 1, 15, 29, 57, 85, 183, 365, and 547

Population: PPI set included all participants who were randomized and received the complete first dose and for whom immunogenicity data were available. Here, 'n' (number analyzed) signifies participants evaluable for this outcome measure at specified timepoints.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Cohort 1: Pooled PlaceboCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1270 EU/L
Cohort 1: Pooled PlaceboCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 15679 EU/L
Cohort 1: Pooled PlaceboCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 85513 EU/L
Cohort 1: Pooled PlaceboCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 183455 EU/L
Cohort 1: Pooled PlaceboCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 57634 EU/L
Cohort 1: Pooled PlaceboCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 547381 EU/L
Cohort 1: Pooled PlaceboCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 365409 EU/L
Cohort 1: Pooled PlaceboCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 29612 EU/L
Cohort 1: RSV preF Protein 50 mcgCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 547507 EU/L
Cohort 1: RSV preF Protein 50 mcgCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 291542 EU/L
Cohort 1: RSV preF Protein 50 mcgCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 183735 EU/L
Cohort 1: RSV preF Protein 50 mcgCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 851144 EU/L
Cohort 1: RSV preF Protein 50 mcgCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 365666 EU/L
Cohort 1: RSV preF Protein 50 mcgCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 151785 EU/L
Cohort 1: RSV preF Protein 50 mcgCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 571403 EU/L
Cohort 1: RSV preF Protein 50 mcgCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1260 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 183727 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 571239 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 151555 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1228 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 851050 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 547556 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 365605 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 291233 EU/L
Cohort 1: RSV preF Protein 150 mcgCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 292195 EU/L
Cohort 1: RSV preF Protein 150 mcgCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 183896 EU/L
Cohort 1: RSV preF Protein 150 mcgCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 365652 EU/L
Cohort 1: RSV preF Protein 150 mcgCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 152524 EU/L
Cohort 1: RSV preF Protein 150 mcgCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 547640 EU/L
Cohort 1: RSV preF Protein 150 mcgCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 571754 EU/L
Cohort 1: RSV preF Protein 150 mcgCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1202 EU/L
Cohort 1: RSV preF Protein 150 mcgCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 851397 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 365785 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 292203 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1237 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 152617 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 183908 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 851400 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 547741 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 571740 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1246 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 547570 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 152159 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 291863 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 571506 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 851088 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 183709 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 365660 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 851504 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 571661 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 291994 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 152365 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1234 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 547720 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 365755 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 183924 EU/L
Cohort 2: Pooled PlaceboCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 85241 EU/L
Cohort 2: Pooled PlaceboCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1190 EU/L
Cohort 2: Pooled PlaceboCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 15181 EU/L
Cohort 2: Pooled PlaceboCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 29219 EU/L
Cohort 2: Pooled PlaceboCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 57257 EU/L
Cohort 2: Pooled PlaceboCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 365166 EU/L
Cohort 2: Pooled PlaceboCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 183232 EU/L
Cohort 2: Pooled PlaceboCohort 2: Post-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 547222 EU/L
Secondary

Cohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified Timepoints

GMT (ELISA units per liter \[EU/L\]) of RSV F-protein in pre-fusion form as assessed by ELISA at specified timepoints as assessed by ELISA at specified timepoints in Cohort 2 were reported.

Time frame: Days 1, 15, 29, 57, 85, 183, 365, and 547

Population: PPI set included all participants who were randomized and received the complete first dose and for whom immunogenicity data were available. Here, 'n' (number analyzed) signifies participants evaluable for this outcome measure at specified timepoints.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Cohort 1: Pooled PlaceboCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 29912 EU/L
Cohort 1: Pooled PlaceboCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 151239 EU/L
Cohort 1: Pooled PlaceboCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1436 EU/L
Cohort 1: Pooled PlaceboCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 571052 EU/L
Cohort 1: Pooled PlaceboCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 851028 EU/L
Cohort 1: Pooled PlaceboCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 183699 EU/L
Cohort 1: Pooled PlaceboCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 365612 EU/L
Cohort 1: Pooled PlaceboCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 547554 EU/L
Cohort 1: RSV preF Protein 50 mcgCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 852031 EU/L
Cohort 1: RSV preF Protein 50 mcgCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 292796 EU/L
Cohort 1: RSV preF Protein 50 mcgCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1831086 EU/L
Cohort 1: RSV preF Protein 50 mcgCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 3651027 EU/L
Cohort 1: RSV preF Protein 50 mcgCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1354 EU/L
Cohort 1: RSV preF Protein 50 mcgCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 572397 EU/L
Cohort 1: RSV preF Protein 50 mcgCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 153860 EU/L
Cohort 1: RSV preF Protein 50 mcgCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 547775 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 365868 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 851824 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 547779 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 292435 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1831121 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 572150 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1278 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 153363 EU/L
Cohort 1: RSV preF Protein 150 mcgCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 547946 EU/L
Cohort 1: RSV preF Protein 150 mcgCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 156055 EU/L
Cohort 1: RSV preF Protein 150 mcgCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1274 EU/L
Cohort 1: RSV preF Protein 150 mcgCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 572977 EU/L
Cohort 1: RSV preF Protein 150 mcgCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 293880 EU/L
Cohort 1: RSV preF Protein 150 mcgCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 852553 EU/L
Cohort 1: RSV preF Protein 150 mcgCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1831369 EU/L
Cohort 1: RSV preF Protein 150 mcgCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 365990 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 572853 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 3651105 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 293610 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1318 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 547937 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 852400 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1831320 EU/L
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 150 mcg (Mixture)Cohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 155375 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 547849 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 154925 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 293318 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1314 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 365917 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1831083 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 851981 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp + RSV preF Protein 150 mcg (Mixture) Alone and With PlaceboCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 572521 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 293684 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 155215 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 572903 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 852686 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1831561 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 5471072 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 3651230 EU/L
Cohort 1: Ad26.RSV.preF 1*10^11 vp With RSV preF Protein 150 mcg and Placebo AloneCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1326 EU/L
Cohort 2: Pooled PlaceboCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 547264 EU/L
Cohort 2: Pooled PlaceboCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 183251 EU/L
Cohort 2: Pooled PlaceboCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 85289 EU/L
Cohort 2: Pooled PlaceboCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 57290 EU/L
Cohort 2: Pooled PlaceboCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 29234 EU/L
Cohort 2: Pooled PlaceboCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 15217 EU/L
Cohort 2: Pooled PlaceboCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 1229 EU/L
Cohort 2: Pooled PlaceboCohort 2: Pre-Fusion RSV Fusion Protein (F-protein) Geometric Mean Titers (GMTs) as Assessed by Enzyme-linked Immunosorbent Assay (ELISA) at Specified TimepointsDay 365204 EU/L
Secondary

Cohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified Timepoints

Breadth of IFN-gamma T-Cells responses against RSV analyzed by ELISpot assay at specified timepoints for Cohort 3 were reported. The ELISPOT assay for F protein-specific gamma interferon-producing T cells was performed using RSV F peptides. The unit was SFU/10\^6 PBMCs.

Time frame: Days 1, 15, 29, 57, 85, 183, 365, 393, 730, 744, and 758

Population: PPI set included all participants who were randomized and received the complete first dose and for whom immunogenicity data were available. Here, 'N' (number of participants analyzed) signifies participants evaluable for this outcome measure. Here, 'n' (number analyzed) signifies participants evaluable for this outcome measure at specified timepoints.

ArmMeasureGroupValue (MEDIAN)
Cohort 1: Pooled PlaceboCohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 156 SFU/10^6 PBMCs
Cohort 1: Pooled PlaceboCohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 15515 SFU/10^6 PBMCs
Cohort 1: Pooled PlaceboCohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 29348 SFU/10^6 PBMCs
Cohort 1: Pooled PlaceboCohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 57371 SFU/10^6 PBMCs
Cohort 1: Pooled PlaceboCohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 85301 SFU/10^6 PBMCs
Cohort 1: Pooled PlaceboCohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 183218 SFU/10^6 PBMCs
Cohort 1: Pooled PlaceboCohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 365152 SFU/10^6 PBMCs
Cohort 1: Pooled PlaceboCohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 393364 SFU/10^6 PBMCs
Cohort 1: Pooled PlaceboCohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 547284 SFU/10^6 PBMCs
Cohort 1: Pooled PlaceboCohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 730210 SFU/10^6 PBMCs
Cohort 1: Pooled PlaceboCohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 744707 SFU/10^6 PBMCs
Cohort 1: Pooled PlaceboCohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 758390 SFU/10^6 PBMCs
Cohort 1: RSV preF Protein 50 mcgCohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 758430 SFU/10^6 PBMCs
Cohort 1: RSV preF Protein 50 mcgCohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 173 SFU/10^6 PBMCs
Cohort 1: RSV preF Protein 50 mcgCohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 365233 SFU/10^6 PBMCs
Cohort 1: RSV preF Protein 50 mcgCohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 547233 SFU/10^6 PBMCs
Cohort 1: RSV preF Protein 50 mcgCohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 15566 SFU/10^6 PBMCs
Cohort 1: RSV preF Protein 50 mcgCohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 183227 SFU/10^6 PBMCs
Cohort 1: RSV preF Protein 50 mcgCohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 744651 SFU/10^6 PBMCs
Cohort 1: RSV preF Protein 50 mcgCohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 29457 SFU/10^6 PBMCs
Cohort 1: RSV preF Protein 50 mcgCohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 393207 SFU/10^6 PBMCs
Cohort 1: RSV preF Protein 50 mcgCohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 85327 SFU/10^6 PBMCs
Cohort 1: RSV preF Protein 50 mcgCohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 57424 SFU/10^6 PBMCs
Cohort 1: RSV preF Protein 50 mcgCohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 730243 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 5741 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 8518 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 73025 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 18332 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 36544 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 39330 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 74435 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 139 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 1517 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 54717 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 2946 SFU/10^6 PBMCs
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 3: Breadth of Interferon-gamma (IFN-gamma) T-Cells Responses Against RSV Analyzed by Enzyme-linked Immunospot (ELISpot) Assay at Specified TimepointsDay 75814 SFU/10^6 PBMCs
Secondary

Cohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified Timepoints

RSV A2 strain neutralization antibody titers at specified timepoints in Cohort 3 was reported. The GMTs of RSV A2 neutralizing antibodies were measured using the neutralization assay.

Time frame: Days 1, 15, 29, 57, 85, 183, 365, 393, 547, 730, 744, 758

Population: PPI set included all participants who were randomized and received the complete first dose and for whom immunogenicity data were available. Here, 'N' (number of participants analyzed) signifies participants evaluable for this outcome measure. Here, 'n' (number analyzed) signifies participants evaluable for this outcome measure at specified timepoints.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Cohort 1: Pooled PlaceboCohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 156739 Titers
Cohort 1: Pooled PlaceboCohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 853765 Titers
Cohort 1: Pooled PlaceboCohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 574412 Titers
Cohort 1: Pooled PlaceboCohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 7442116 Titers
Cohort 1: Pooled PlaceboCohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 1833220 Titers
Cohort 1: Pooled PlaceboCohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 1546 Titers
Cohort 1: Pooled PlaceboCohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 7301051 Titers
Cohort 1: Pooled PlaceboCohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 3652021 Titers
Cohort 1: Pooled PlaceboCohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 7582201 Titers
Cohort 1: Pooled PlaceboCohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 295808 Titers
Cohort 1: Pooled PlaceboCohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 3932856 Titers
Cohort 1: Pooled PlaceboCohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 5471743 Titers
Cohort 1: RSV preF Protein 50 mcgCohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 3931741 Titers
Cohort 1: RSV preF Protein 50 mcgCohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 5471364 Titers
Cohort 1: RSV preF Protein 50 mcgCohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 730841 Titers
Cohort 1: RSV preF Protein 50 mcgCohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 7442473 Titers
Cohort 1: RSV preF Protein 50 mcgCohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 573891 Titers
Cohort 1: RSV preF Protein 50 mcgCohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 7582315 Titers
Cohort 1: RSV preF Protein 50 mcgCohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 853252 Titers
Cohort 1: RSV preF Protein 50 mcgCohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 154982 Titers
Cohort 1: RSV preF Protein 50 mcgCohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 1832829 Titers
Cohort 1: RSV preF Protein 50 mcgCohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 1552 Titers
Cohort 1: RSV preF Protein 50 mcgCohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 3651895 Titers
Cohort 1: RSV preF Protein 50 mcgCohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 294338 Titers
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 183673 Titers
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 1582 Titers
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 15525 Titers
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 29489 Titers
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 57563 Titers
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 85514 Titers
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 758416 Titers
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 365545 Titers
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 393585 Titers
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 547469 Titers
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 730314 Titers
Cohort 1: Ad26.RSV.preF 5*10^10 vp + RSV preF Protein 50 mcg (Mixture)Cohort 3: RSV A2 Strain Neutralization Antibody Titers at Specified TimepointsDay 744393 Titers

Source: ClinicalTrials.gov · Data processed: Feb 8, 2026