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Safety and Immunogenicity of Fluzone® Quadrivalent and Fluzone® High-Dose, Influenza Vaccines, 2016-2017 Formulations

Safety and Immunogenicity of Fluzone® Quadrivalent and Fluzone® High-Dose, Influenza Vaccines, 2016-2017 Formulations

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02908269
Enrollment
180
Registered
2016-09-20
Start date
2016-09-15
Completion date
2016-12-09
Last updated
2022-03-29

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

Conditions

Influenza

Keywords

Influenza, Fluzone® Quadrivalent, Influenza Vaccine (2016-2017 formulation), Fluzone® High-Dose, Influenza Vaccine (2016-2017 formulation)

Brief summary

The aim of the study was to describe the safety and immunogenicity of the 2016-2017 formulations of Fluzone Quadrivalent vaccine in children 3 to \< 9 years of age and in adults 18 to \< 65 years or age, and of the 2016-2017 formulation of Fluzone High-Dose vaccine in adults ≥65 years of age. Primary Observational Objectives * To describe the safety of the 2016-2017 formulation of Fluzone Quadrivalent vaccine in children 3 to \< 9 years of age and adults 18 to \< 65 years of age, and the safety of the 2016-2017 formulation of Fluzone High-Dose vaccine in adults ≥ 65 years of age. Observational Objectives: * To describe the immunogenicity of the 2016-2017 formulation of Fluzone Quadrivalent vaccine in children 3 to \< 9 years of age and adults 18 to \< 65 years of age, and the immunogenicity of the 2016-2017 formulation of Fluzone High-Dose vaccine in adults ≥ 65 years of age. * To submit available sera from approximately 90 participants (30 participants 3 to \< 9 years of age and 30 participants 18 to \< 65 years of age who receive Fluzone Quadrivalent vaccine, and 30 participants ≥ 65 years of age who receive Fluzone High-Dose vaccine) to Center for Biologics Evaluation and Research (CBER) for further analysis by the World Health Organization (WHO), the Centers for Disease Control and Prevention (CDC), and the Food and Drug Administration (FDA) to support formulation recommendations for subsequent influenza vaccines.

Detailed description

All participants received a 0.5-mL intramuscular dose of their assigned vaccine at Visit 1. For participants 3 to \< 9 years of age for whom 2 doses of influenza vaccine were recommended per Advisory Committee on Immunization Practices (ACIP) guidance, a second dose of Fluzone Quadrivalent vaccine (of the same volume) was administered during Visit 2. Solicited adverse reaction (AR) information was collected for 7 days after vaccination. Unsolicited non-serious adverse event (AE) and serious adverse event (SAE) information was collected from Visit 1 to Visit 2 or from Visit 1 to Visit 3 for those participants receiving 2 doses of study vaccine. Immunogenicity was evaluated in all participants prior to vaccination on Day 0 (Visit 1) and after the final vaccination on Day 28 for 3 to \< 9 year olds and Day 21 days for adults 18 years and older.

Interventions

BIOLOGICALFluzone Quadrivalent vaccine, 2016-2017 formulation, No Preservative

0.5 mL, Intramuscular

BIOLOGICALFluzone High-Dose, vaccine, 2016-2017 formulation

0.5 mL, Intramuscular

Sponsors

Sanofi Pasteur, a Sanofi Company
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Eligibility

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

Inclusion criteria

* Aged 3 to \<9 years or adult aged ≥ 18 years on the day of first study vaccination (study product administration) . * Informed consent form had been signed and dated by participants ≥ 18 years of age. * Assent form had been signed and dated by participants 7 to \<9 years of age, and informed consent form (ICF) has been signed and dated by parent(s) or guardian(s) for participants 3 to \<9 years of age. * Participant and parent/guardian (of participants 3 to \<9 years of age) were able to attend all scheduled visits and to comply with all trial procedures.

Exclusion criteria

* Participant was pregnant, or lactating, or of childbearing potential and not using an effective method of contraception or abstinence from at least 4 weeks prior to vaccination and until at least 4 weeks after vaccination. To be considered of non-childbearing potential, a female must be pre-menarche, or post-menopausal for at least 1 year, or surgically sterile. * Participation at the time of study enrollment (or in the 30 days preceding the first trial vaccination) or planned participation during the present trial period in another clinical trial investigating a vaccine, drug, medical device, or medical procedure. * Receipt of any vaccine in the 30 days preceding the first trial vaccination, or planned receipt of any vaccine before Visit 2 for participants receiving 1 dose of influenza vaccine or Visit 3 for participants receiving 2 doses of influenza vaccine. * Previous vaccination against influenza (in the 2016-2017 influenza season) with either the trial vaccine or another vaccine. * Receipt of immune globulins, blood, or blood-derived products in the past 3 months. * Known or suspected congenital or acquired immunodeficiency; or receipt of immunosuppressive therapy, such as anti-cancer chemotherapy or radiation therapy, within the preceding 6 months; or long-term systemic corticosteroid therapy (prednisone or equivalent for more than 2 consecutive weeks within the past 3 months). * Known systemic hypersensitivity to any of the vaccine components, or history of a life-threatening reaction to the vaccine used in the trial or to a vaccine containing any of the same substances. * Thrombocytopenia, which may be a contraindication for intramuscular vaccination, at the discretion of the Investigator. * Bleeding disorder, or receipt of anticoagulants in the 3 weeks preceding inclusion, contraindicating intramuscular vaccination. * Deprived of freedom by an administrative or court order, or in an emergency setting, or hospitalized involuntarily. * Current alcohol abuse or drug addiction. * Chronic illness that, in the opinion of the Investigator, is at a stage where it might interfere with trial conduct or completion. * Moderate or severe acute illness/infection (according to Investigator judgment) on the day of planned vaccination or febrile illness (temperature ≥100.4°F \[38.0°C\]). A prospective participant should not be included in the study until the condition has resolved or the febrile event has subsided. * Identified as an Investigator or employee of the Investigator or study center with direct involvement in the proposed study (participants ≥18 years of age) or identified as an immediate family member (i.e., parent, spouse, natural or adopted child) of the Investigator or employee with direct involvement in the proposed study (all participants). * History of serious adverse reaction to any influenza vaccine. * Personal history of Guillain-Barré syndrome. * Any condition that in the opinion of the Investigator would pose a health risk to the participant if enrolled or could interfere with the evaluation of the vaccine. * Personal history of clinically significant developmental delay (at the discretion of the Investigator), neurologic disorder, or seizure disorder. * Known seropositivity for human immunodeficiency virus, hepatitis B, or hepatitis C.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 1 (3 to < 9 Years of Age)Within 7 days after any vaccinationSolicited injection site reactions: Pain (Grade 1: easily tolerated, Grade 2: sufficiently discomforting to interfere with normal behavior or activities, Grade 3: incapacitating, unable to perform usual activities), erythema & swelling (Grade 1: \>0 to \<25 mm;Grade 2: ≥ 25 to \< 50 mm; Grade 3: ≥ 50 mm). Solicited systemic reactions: Fever (Grade 1: ≥ 38.0 degrees Celsius to ≤ 38.4 degrees Celsius, Grade 2: ≥ 38.5 degrees Celsius to ≤ 38.9 degrees Celsius, Grade 3: ≥ 39.0 degrees Celsius), headache, malaise & myalgia (Grade 1: no interference with activity, Grade 2: some interference, Grade 3: significant interference). Number of participants with any solicited injection-site & systemic reactions are reported; number of participants with Grade 3 solicited injection-site & systemic reactions are also reported.
Number of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 2 (18 to < 65 Years) and Group 3 (≥ 65 Years)Within 7 days after any vaccinationSolicited injection site reactions: Pain (Grade 1: no interference with activity, Grade 2: some interference, Grade 3: significant; prevents daily activity), erythema & swelling (Grade 1: ≥ 25 to ≤ 50 mm; Grade 2: ≥ 51 to ≤ 100 mm; Grade 3: \>100 mm). Solicited systemic reactions: Fever (Grade 1: ≥ 38.0 degrees Celsius to ≤ 38.4 degrees Celsius, Grade 2: ≥ 38.5 degrees Celsius to ≤ 38.9 degrees Celsius, Grade 3: ≥ 39.0 degrees Celsius), headache, malaise & myalgia (Grade 1: no interference with activity, Grade 2: some interference, Grade 3: significant interference). Number of participants with any solicited injection-site & systemic reactions are reported; number of participants with Grade 3 solicited injection-site & systemic reactions are also reported.

Secondary

MeasureTime frameDescription
Geometric Mean Titers (GMTs) of Influenza Vaccine Antibodies (Group 3: ≥ 65 Years)Day 0 (pre-vaccination) and 21 days post-final vaccination (post-vaccination)Anti-influenza antibodies were measured using hemagglutination inhibition (HAI) assay for 3 strains: H1N1, H3N2, Victoria lineage.
Number of Participants With Seroprotection to Influenza Vaccine Antigens (Group 1: 3 to < 9 Years)Day 0 (pre-vaccination) and 28 days post-final vaccination (post-vaccination)Anti-influenza antibodies were measured using HAI assay for 4 strains: H1N1, H3N2, Victoria lineage, Yamagata lineage. Seroprotection was defined as an antibody titer ≥40 (1/dilution \[dil\]) at pre-vaccination and at post-final vaccination.
Geometric Mean Titers (GMTs) of Influenza Vaccine Antibodies (Group 1: 3 to < 9 Years)Day 0 (pre-vaccination) and 28 days post-final vaccination (post-vaccination)Anti-influenza antibodies were measured using hemagglutination inhibition (HAI) assay for 4 strains: H1N1, H3N2, Victoria lineage, Yamagata lineage.
Number of Participants With Seroprotection to Influenza Vaccine Antigens (Group 3: ≥ 65 Years)Day 0 (pre-vaccination) and 21 days post-final vaccination (post-vaccination)Anti-influenza antibodies were measured using HAI assay for 3 strains: H1N1, H3N2, Victoria lineage. Seroprotection was defined as an antibody titer ≥ 40 (1/dilution \[dil\]) at pre-vaccination and at post-final vaccination.
Number of Participants With Seroprotection to Influenza Vaccine Antigens (Group 2: 18 to < 65 Years)Day 0 (pre-vaccination) and 21 days post-final vaccination (post-vaccination)Anti-influenza antibodies were measured using HAI assay for 4 strains: H1N1, H3N2, Victoria lineage, Yamagata lineage. Seroprotection was defined as an antibody titer ≥ 40 (1/dilution \[dil\]) at pre-vaccination and at post-final vaccination.
Geometric Mean Titers (GMTs) of Influenza Vaccine Antibodies (Group 2: 18 to < 65 Years)Day 0 (pre-vaccination) and 21 days post-final vaccination (post-vaccination)Anti-influenza antibodies were measured using hemagglutination inhibition (HAI) assay for 4 strains: H1N1, H3N2, Victoria lineage, Yamagata lineage.

Countries

United States

Participant flow

Recruitment details

Study participants were enrolled in 2 centers in the United States from 15 September 2016 to 28 September 2016.

Pre-assignment details

A total of 180 participants (60 for each group) were enrolled and vaccinated in the study.

Participants by arm

ArmCount
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 Years
Participants aged 3 to \< 9 years received a 0.5-mL dose of Fluzone Quadrivalent vaccine, intramuscularly, at Day 0. For participants for whom 2 doses of influenza vaccine were recommended per ACIP guidance, a second dose of Fluzone Quadrivalent vaccine was administered at Day 28.
60
Fluzone Quadrivalent Vaccine Group 2: 18 to < 65 Years
Participants aged 18 to \< 65 years received one 0.5-mL dose of Fluzone Quadrivalent vaccine, intramuscularly, at Day 0.
60
Fluzone High-Dose Vaccine Group 3: ≥ 65 Years
Participants aged ≥ 65 years received one 0.5-mL dose of Fluzone High-Dose vaccine, intramuscularly, at Day 0.
60
Total180

Baseline characteristics

CharacteristicFluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsFluzone Quadrivalent Vaccine Group 2: 18 to < 65 YearsFluzone High-Dose Vaccine Group 3: ≥ 65 YearsTotal
Age, Continuous6.03 years
STANDARD_DEVIATION 1.61
42.2 years
STANDARD_DEVIATION 12.9
72.6 years
STANDARD_DEVIATION 6.19
40.3 years
STANDARD_DEVIATION 28.5
Region of Enrollment
United States
60 participants60 participants60 participants180 participants
Sex: Female, Male
Female
26 Participants42 Participants45 Participants113 Participants
Sex: Female, Male
Male
34 Participants18 Participants15 Participants67 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 600 / 600 / 60
other
Total, other adverse events
35 / 6033 / 6025 / 60
serious
Total, serious adverse events
1 / 600 / 602 / 60

Outcome results

Primary

Number of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 1 (3 to < 9 Years of Age)

Solicited injection site reactions: Pain (Grade 1: easily tolerated, Grade 2: sufficiently discomforting to interfere with normal behavior or activities, Grade 3: incapacitating, unable to perform usual activities), erythema & swelling (Grade 1: \>0 to \<25 mm;Grade 2: ≥ 25 to \< 50 mm; Grade 3: ≥ 50 mm). Solicited systemic reactions: Fever (Grade 1: ≥ 38.0 degrees Celsius to ≤ 38.4 degrees Celsius, Grade 2: ≥ 38.5 degrees Celsius to ≤ 38.9 degrees Celsius, Grade 3: ≥ 39.0 degrees Celsius), headache, malaise & myalgia (Grade 1: no interference with activity, Grade 2: some interference, Grade 3: significant interference). Number of participants with any solicited injection-site & systemic reactions are reported; number of participants with Grade 3 solicited injection-site & systemic reactions are also reported.

Time frame: Within 7 days after any vaccination

Population: Analysis was performed using the Safety Analysis Set, which included all participants who received the study vaccine. Number of participants analyzed corresponds to participants with available data for the listed solicited reaction.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 1 (3 to < 9 Years of Age)Any Injection site pain18 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 1 (3 to < 9 Years of Age)Grade 3 Injection site pain1 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 1 (3 to < 9 Years of Age)Any Injection site erythema6 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 1 (3 to < 9 Years of Age)Grade3 Injection site erythema0 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 1 (3 to < 9 Years of Age)Any Injection site swelling7 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 1 (3 to < 9 Years of Age)Grade3 Injection site swelling0 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 1 (3 to < 9 Years of Age)Any Fever3 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 1 (3 to < 9 Years of Age)Grade 3 Fever1 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 1 (3 to < 9 Years of Age)Any Headache9 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 1 (3 to < 9 Years of Age)Grade 3 Headache0 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 1 (3 to < 9 Years of Age)Any Malaise15 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 1 (3 to < 9 Years of Age)Grade 3 Malaise1 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 1 (3 to < 9 Years of Age)Any Myalgia12 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 1 (3 to < 9 Years of Age)Grade 3 Myalgia0 Participants
Primary

Number of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 2 (18 to < 65 Years) and Group 3 (≥ 65 Years)

Solicited injection site reactions: Pain (Grade 1: no interference with activity, Grade 2: some interference, Grade 3: significant; prevents daily activity), erythema & swelling (Grade 1: ≥ 25 to ≤ 50 mm; Grade 2: ≥ 51 to ≤ 100 mm; Grade 3: \>100 mm). Solicited systemic reactions: Fever (Grade 1: ≥ 38.0 degrees Celsius to ≤ 38.4 degrees Celsius, Grade 2: ≥ 38.5 degrees Celsius to ≤ 38.9 degrees Celsius, Grade 3: ≥ 39.0 degrees Celsius), headache, malaise & myalgia (Grade 1: no interference with activity, Grade 2: some interference, Grade 3: significant interference). Number of participants with any solicited injection-site & systemic reactions are reported; number of participants with Grade 3 solicited injection-site & systemic reactions are also reported.

Time frame: Within 7 days after any vaccination

Population: Analysis was performed on safety analysis set.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 2 (18 to < 65 Years) and Group 3 (≥ 65 Years)Any Injection site pain28 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 2 (18 to < 65 Years) and Group 3 (≥ 65 Years)Grade 3 Injection site pain0 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 2 (18 to < 65 Years) and Group 3 (≥ 65 Years)Any Injection site erythema0 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 2 (18 to < 65 Years) and Group 3 (≥ 65 Years)Grade3 Injection site erythema0 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 2 (18 to < 65 Years) and Group 3 (≥ 65 Years)Any Injection site swelling0 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 2 (18 to < 65 Years) and Group 3 (≥ 65 Years)Grade3 Injection site swelling0 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 2 (18 to < 65 Years) and Group 3 (≥ 65 Years)Any Fever0 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 2 (18 to < 65 Years) and Group 3 (≥ 65 Years)Grade 3 Fever0 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 2 (18 to < 65 Years) and Group 3 (≥ 65 Years)Any Headache11 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 2 (18 to < 65 Years) and Group 3 (≥ 65 Years)Grade 3 Headache0 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 2 (18 to < 65 Years) and Group 3 (≥ 65 Years)Any Malaise10 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 2 (18 to < 65 Years) and Group 3 (≥ 65 Years)Grade 3 Malaise0 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 2 (18 to < 65 Years) and Group 3 (≥ 65 Years)Any Myalgia15 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 2 (18 to < 65 Years) and Group 3 (≥ 65 Years)Grade 3 Myalgia0 Participants
Fluzone High-Dose Vaccine Group 3: ≥ 65 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 2 (18 to < 65 Years) and Group 3 (≥ 65 Years)Any Malaise4 Participants
Fluzone High-Dose Vaccine Group 3: ≥ 65 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 2 (18 to < 65 Years) and Group 3 (≥ 65 Years)Any Injection site pain12 Participants
Fluzone High-Dose Vaccine Group 3: ≥ 65 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 2 (18 to < 65 Years) and Group 3 (≥ 65 Years)Grade 3 Fever0 Participants
Fluzone High-Dose Vaccine Group 3: ≥ 65 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 2 (18 to < 65 Years) and Group 3 (≥ 65 Years)Grade 3 Injection site pain0 Participants
Fluzone High-Dose Vaccine Group 3: ≥ 65 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 2 (18 to < 65 Years) and Group 3 (≥ 65 Years)Any Myalgia11 Participants
Fluzone High-Dose Vaccine Group 3: ≥ 65 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 2 (18 to < 65 Years) and Group 3 (≥ 65 Years)Any Injection site erythema3 Participants
Fluzone High-Dose Vaccine Group 3: ≥ 65 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 2 (18 to < 65 Years) and Group 3 (≥ 65 Years)Any Headache8 Participants
Fluzone High-Dose Vaccine Group 3: ≥ 65 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 2 (18 to < 65 Years) and Group 3 (≥ 65 Years)Grade3 Injection site erythema0 Participants
Fluzone High-Dose Vaccine Group 3: ≥ 65 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 2 (18 to < 65 Years) and Group 3 (≥ 65 Years)Grade 3 Malaise0 Participants
Fluzone High-Dose Vaccine Group 3: ≥ 65 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 2 (18 to < 65 Years) and Group 3 (≥ 65 Years)Any Injection site swelling1 Participants
Fluzone High-Dose Vaccine Group 3: ≥ 65 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 2 (18 to < 65 Years) and Group 3 (≥ 65 Years)Grade 3 Headache0 Participants
Fluzone High-Dose Vaccine Group 3: ≥ 65 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 2 (18 to < 65 Years) and Group 3 (≥ 65 Years)Grade3 Injection site swelling0 Participants
Fluzone High-Dose Vaccine Group 3: ≥ 65 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 2 (18 to < 65 Years) and Group 3 (≥ 65 Years)Grade 3 Myalgia0 Participants
Fluzone High-Dose Vaccine Group 3: ≥ 65 YearsNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, and Swelling) and Systemic Reactions (Fever, Headache, Malaise, Myalgia): Group 2 (18 to < 65 Years) and Group 3 (≥ 65 Years)Any Fever1 Participants
Secondary

Geometric Mean Titers (GMTs) of Influenza Vaccine Antibodies (Group 1: 3 to < 9 Years)

Anti-influenza antibodies were measured using hemagglutination inhibition (HAI) assay for 4 strains: H1N1, H3N2, Victoria lineage, Yamagata lineage.

Time frame: Day 0 (pre-vaccination) and 28 days post-final vaccination (post-vaccination)

Population: Analysis was performed using the Per-protocol Analysis Set (PPAS), which included all participants who received study vaccine and had a valid post-vaccination serology result for at least 1 strain.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsGeometric Mean Titers (GMTs) of Influenza Vaccine Antibodies (Group 1: 3 to < 9 Years)Pre-Vaccination: A/H1N1273 Titers (1/dilutions)
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsGeometric Mean Titers (GMTs) of Influenza Vaccine Antibodies (Group 1: 3 to < 9 Years)Pre-Vaccination: A/H3N2167 Titers (1/dilutions)
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsGeometric Mean Titers (GMTs) of Influenza Vaccine Antibodies (Group 1: 3 to < 9 Years)Pre-Vaccination: B Victoria111 Titers (1/dilutions)
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsGeometric Mean Titers (GMTs) of Influenza Vaccine Antibodies (Group 1: 3 to < 9 Years)Pre-Vaccination: B Yamagata170 Titers (1/dilutions)
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsGeometric Mean Titers (GMTs) of Influenza Vaccine Antibodies (Group 1: 3 to < 9 Years)Post-Vaccination: A/H1N11232 Titers (1/dilutions)
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsGeometric Mean Titers (GMTs) of Influenza Vaccine Antibodies (Group 1: 3 to < 9 Years)Post-Vaccination: A/H3N22495 Titers (1/dilutions)
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsGeometric Mean Titers (GMTs) of Influenza Vaccine Antibodies (Group 1: 3 to < 9 Years)Post-Vaccination: B Victoria1208 Titers (1/dilutions)
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsGeometric Mean Titers (GMTs) of Influenza Vaccine Antibodies (Group 1: 3 to < 9 Years)Post-Vaccination: B Yamagata1731 Titers (1/dilutions)
Secondary

Geometric Mean Titers (GMTs) of Influenza Vaccine Antibodies (Group 2: 18 to < 65 Years)

Anti-influenza antibodies were measured using hemagglutination inhibition (HAI) assay for 4 strains: H1N1, H3N2, Victoria lineage, Yamagata lineage.

Time frame: Day 0 (pre-vaccination) and 21 days post-final vaccination (post-vaccination)

Population: Analysis was performed on PPAS.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsGeometric Mean Titers (GMTs) of Influenza Vaccine Antibodies (Group 2: 18 to < 65 Years)Pre-Vaccination: A/H1N1225 Titers (1/dilutions)
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsGeometric Mean Titers (GMTs) of Influenza Vaccine Antibodies (Group 2: 18 to < 65 Years)Pre-Vaccination: A/H3N266.1 Titers (1/dilutions)
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsGeometric Mean Titers (GMTs) of Influenza Vaccine Antibodies (Group 2: 18 to < 65 Years)Pre-Vaccination: B Victoria195 Titers (1/dilutions)
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsGeometric Mean Titers (GMTs) of Influenza Vaccine Antibodies (Group 2: 18 to < 65 Years)Pre-Vaccination: B Yamagata264 Titers (1/dilutions)
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsGeometric Mean Titers (GMTs) of Influenza Vaccine Antibodies (Group 2: 18 to < 65 Years)Post-Vaccination: A/H1N1779 Titers (1/dilutions)
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsGeometric Mean Titers (GMTs) of Influenza Vaccine Antibodies (Group 2: 18 to < 65 Years)Post-Vaccination: A/H3N2752 Titers (1/dilutions)
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsGeometric Mean Titers (GMTs) of Influenza Vaccine Antibodies (Group 2: 18 to < 65 Years)Post-Vaccination: B Victoria998 Titers (1/dilutions)
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsGeometric Mean Titers (GMTs) of Influenza Vaccine Antibodies (Group 2: 18 to < 65 Years)Post-Vaccination: B Yamagata1470 Titers (1/dilutions)
Secondary

Geometric Mean Titers (GMTs) of Influenza Vaccine Antibodies (Group 3: ≥ 65 Years)

Anti-influenza antibodies were measured using hemagglutination inhibition (HAI) assay for 3 strains: H1N1, H3N2, Victoria lineage.

Time frame: Day 0 (pre-vaccination) and 21 days post-final vaccination (post-vaccination)

Population: Analysis was performed on PPAS.

ArmMeasureGroupValue (MEDIAN)
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsGeometric Mean Titers (GMTs) of Influenza Vaccine Antibodies (Group 3: ≥ 65 Years)Pre-Vaccination: A/H1N177.3 Titers (1/dilutions)
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsGeometric Mean Titers (GMTs) of Influenza Vaccine Antibodies (Group 3: ≥ 65 Years)Pre-Vaccination: A/H3N259.6 Titers (1/dilutions)
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsGeometric Mean Titers (GMTs) of Influenza Vaccine Antibodies (Group 3: ≥ 65 Years)Pre-Vaccination: B Victoria106 Titers (1/dilutions)
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsGeometric Mean Titers (GMTs) of Influenza Vaccine Antibodies (Group 3: ≥ 65 Years)Post-Vaccination: A/H1N1347 Titers (1/dilutions)
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsGeometric Mean Titers (GMTs) of Influenza Vaccine Antibodies (Group 3: ≥ 65 Years)Post-Vaccination: A/H3N2590 Titers (1/dilutions)
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsGeometric Mean Titers (GMTs) of Influenza Vaccine Antibodies (Group 3: ≥ 65 Years)Post-Vaccination: B Victoria816 Titers (1/dilutions)
Secondary

Number of Participants With Seroprotection to Influenza Vaccine Antigens (Group 1: 3 to < 9 Years)

Anti-influenza antibodies were measured using HAI assay for 4 strains: H1N1, H3N2, Victoria lineage, Yamagata lineage. Seroprotection was defined as an antibody titer ≥40 (1/dilution \[dil\]) at pre-vaccination and at post-final vaccination.

Time frame: Day 0 (pre-vaccination) and 28 days post-final vaccination (post-vaccination)

Population: Analysis was performed on PPAS.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants With Seroprotection to Influenza Vaccine Antigens (Group 1: 3 to < 9 Years)Pre-Vaccination: A/H1N146 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants With Seroprotection to Influenza Vaccine Antigens (Group 1: 3 to < 9 Years)Pre-Vaccination: A/H3N247 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants With Seroprotection to Influenza Vaccine Antigens (Group 1: 3 to < 9 Years)Pre-Vaccination: B Victoria35 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants With Seroprotection to Influenza Vaccine Antigens (Group 1: 3 to < 9 Years)Pre-Vaccination: B Yamagata41 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants With Seroprotection to Influenza Vaccine Antigens (Group 1: 3 to < 9 Years)Post-Vaccination: A/H1N154 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants With Seroprotection to Influenza Vaccine Antigens (Group 1: 3 to < 9 Years)Post-Vaccination: A/H3N254 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants With Seroprotection to Influenza Vaccine Antigens (Group 1: 3 to < 9 Years)Post-Vaccination: B Victoria52 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants With Seroprotection to Influenza Vaccine Antigens (Group 1: 3 to < 9 Years)Post-Vaccination: B Yamagata53 Participants
Secondary

Number of Participants With Seroprotection to Influenza Vaccine Antigens (Group 2: 18 to < 65 Years)

Anti-influenza antibodies were measured using HAI assay for 4 strains: H1N1, H3N2, Victoria lineage, Yamagata lineage. Seroprotection was defined as an antibody titer ≥ 40 (1/dilution \[dil\]) at pre-vaccination and at post-final vaccination.

Time frame: Day 0 (pre-vaccination) and 21 days post-final vaccination (post-vaccination)

Population: Analysis was performed on PPAS.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants With Seroprotection to Influenza Vaccine Antigens (Group 2: 18 to < 65 Years)Pre-Vaccination: A/H1N153 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants With Seroprotection to Influenza Vaccine Antigens (Group 2: 18 to < 65 Years)Pre-Vaccination: A/H3N240 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants With Seroprotection to Influenza Vaccine Antigens (Group 2: 18 to < 65 Years)Pre-Vaccination: B Victoria52 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants With Seroprotection to Influenza Vaccine Antigens (Group 2: 18 to < 65 Years)Pre-Vaccination: B Yamagata56 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants With Seroprotection to Influenza Vaccine Antigens (Group 2: 18 to < 65 Years)Post-Vaccination: A/H1N160 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants With Seroprotection to Influenza Vaccine Antigens (Group 2: 18 to < 65 Years)Post-Vaccination: A/H3N260 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants With Seroprotection to Influenza Vaccine Antigens (Group 2: 18 to < 65 Years)Post-Vaccination: B Victoria60 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants With Seroprotection to Influenza Vaccine Antigens (Group 2: 18 to < 65 Years)Post-Vaccination: B Yamagata60 Participants
Secondary

Number of Participants With Seroprotection to Influenza Vaccine Antigens (Group 3: ≥ 65 Years)

Anti-influenza antibodies were measured using HAI assay for 3 strains: H1N1, H3N2, Victoria lineage. Seroprotection was defined as an antibody titer ≥ 40 (1/dilution \[dil\]) at pre-vaccination and at post-final vaccination.

Time frame: Day 0 (pre-vaccination) and 21 days post-final vaccination (post-vaccination)

Population: Analysis was performed on PPAS.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants With Seroprotection to Influenza Vaccine Antigens (Group 3: ≥ 65 Years)Pre-Vaccination: A/H1N141 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants With Seroprotection to Influenza Vaccine Antigens (Group 3: ≥ 65 Years)Pre-Vaccination: A/H3N239 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants With Seroprotection to Influenza Vaccine Antigens (Group 3: ≥ 65 Years)Pre-Vaccination: B Victoria51 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants With Seroprotection to Influenza Vaccine Antigens (Group 3: ≥ 65 Years)Post-Vaccination: A/H1N156 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants With Seroprotection to Influenza Vaccine Antigens (Group 3: ≥ 65 Years)Post-Vaccination: A/H3N258 Participants
Fluzone Quadrivalent Vaccine Group 1: 3 to < 9 YearsNumber of Participants With Seroprotection to Influenza Vaccine Antigens (Group 3: ≥ 65 Years)Post-Vaccination: B Victoria60 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026