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Study of Fluzone® Influenza Virus Vaccines 2012-2013 Formulation Among Adults.

Safety and Immunogenicity Among Adults of Fluzone®, Influenza Virus Vaccines 2012-2013 Formulation (Intradermal and Intramuscular Route)

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01691339
Enrollment
200
Registered
2012-09-24
Start date
2012-09-30
Completion date
2013-02-28
Last updated
2013-11-04

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

Conditions

Influenza

Keywords

Influenza, Influenza virus vaccine, Fluzone® (Influenza Virus Vaccine) 2012-2013 Formulation, Fluzone® High-Dose (Influenza Virus Vaccine) 2012-2013 Formulation, Trivalent Inactivated Influenza Vaccine, Fluzone® Intradermal (Influenza Virus Vaccine) 2012-2013 Formulation

Brief summary

The aim of this study is to evaluate the safety and immunogenicity of Fluzone vaccine (18 years to \<65 years of age and ≥ 65 years of age), Fluzone Intradermal vaccine (18 years to \<65 years of age), and Fluzone High-Dose vaccine (≥ 65 years of age). Primary Objective: * To describe the safety of the 2012 - 2013 formulation of Fluzone and Fluzone Intradermal vaccines in adults 18 to \< 65 years of age and the safety of the 2012 - 2013 formulation of Fluzone and Fluzone High-Dose vaccines in adults ≥ 65 years of age. Observational Objectives: * To describe the immunogenicity of the 2012 - 2013 formulation of Fluzone and Fluzone Intradermal vaccines in adults 18 to \< 65 years of age and the immunogenicity of the 2012 - 2013 formulation of Fluzone and Fluzone High-Dose vaccines in adults ≥ 65 years of age. * To evaluate the compliance, in terms of immunogenicity, of each study vaccine (Fluzone, Fluzone Intradermal, and Fluzone High-Dose) in the applicable age group with the requirements of the Committee for Human Medicinal Products (CHMP) Note for Guidance (NfG) CPMP/BWP/214/96. * To submit remaining available sera from subjects given Fluzone vaccine to the 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 selection and recommendation of strains for subsequent years' influenza vaccines.

Detailed description

Participants 18 to \< 65 years of age will be randomized to receive a dose of either Fluzone or Fluzone Intradermal vaccine and participants ≥ 65 years of age will be randomized to receive a dose of Fluzone or Fluzone High-Dose vaccine. All participants will be followed up for safety and immunogenicity. The duration of participation in the trial will be approximately 21 days.

Interventions

BIOLOGICALInfluenza Virus Vaccine: Fluzone® 2012-2013 Formulation

0.5 mL, Intramuscular

BIOLOGICALInfluenza Virus Vaccine: Fluzone® Intradermal 2012-2013 Formulation

0.1 mL, Intradermal

BIOLOGICALInfluenza Virus Vaccine: Fluzone® High-Dose 2012-2013 Formulation

0.5 mL, Intramuscular

Sponsors

Sanofi Pasteur, a Sanofi Company
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
SINGLE (Outcomes Assessor)

Eligibility

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

Inclusion criteria

* Subject is ≥ 18 years of age on the day of inclusion * Informed consent form has been signed and dated * Able to attend all scheduled visits and to comply with all trial procedures.

Exclusion criteria

* History of serious adverse reaction to any influenza vaccine * Receipt of any vaccine within 30 days before receiving study vaccine, or plans to receive another vaccine before Visit 2 * Participation in another interventional clinical trial investigating a vaccine, drug, medical device, or medical procedure in the 30 days preceding the first study vaccination or during the course of the study, unless no intervention for the other study occurred within the 30 days prior to the first study vaccination and none are planned before the subject would complete safety surveillance for the present study * Thrombocytopenia, which may be a contraindication for intramuscular vaccination, at the discretion of the Investigator * Prior vaccination with any 2012 - 2013 formulation of influenza vaccine * Known systemic hypersensitivity to eggs, chicken proteins, latex, or any of the vaccine components, or a history of a life-threatening reaction to Fluzone, Fluzone Intradermal, or Fluzone High-Dose vaccine or to a vaccine containing any of the same substances (the complete list of vaccine components is included in the Prescribing Information) * Receipt of immune globulins, blood, or blood-derived products in the past 3 months * Bleeding disorder or receipt of anticoagulants in the 3 weeks preceding inclusion, which may be a contraindication for intramuscular vaccination, at the discretion of the Investigator * Subject is pregnant, or lactating, or of childbearing potential (to be considered of non-childbearing potential, a female must be pre-menarche or post-menopausal for at least 1 year, surgically sterile, or using an effective method of contraception or abstinence from at least 4 weeks prior to vaccination and until at least 4 weeks after vaccination) * Any condition that in the opinion of the Investigator would pose a health risk to the subject if enrolled or could interfere with the evaluation of the vaccine * Personal history of Guillain-Barré syndrome * 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) * Chronic illness that, in the opinion of the Investigator, is at a stage where it might interfere with trial conduct or completion * Seropositivity for human immunodeficiency virus (HIV), hepatitis B, or hepatitis C, as reported by the subject * Deprived of freedom by an administrative or court order, or in an emergency setting, or hospitalized involuntarily * Current alcohol or drug addiction that, in the opinion of the Investigator, might interfere with the ability to comply with trial procedures * Moderate or severe acute illness/infection (according to Investigator judgment) or febrile illness (temperature ≥ 100.4°F) on the day of vaccination. A prospective subject 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, 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.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineDay 0 up to Day 7 post-vaccinationSolicited injection site: Pain, Erythema, Swelling, Induration, and Ecchymosis; Solicited systemic reactions: Fever (Temperature), Headache, Malaise, Myalgia, and Shivering. Grade 3 injection site: Pain - Significant, prevents daily activity; Erythema, Swelling, Induration, and Ecchymosis - \>100 mm. Grade 3 systemic reactions: Fever ≥39.0°C; Headache, Malaise, Myalgia, and Shivering - significant, prevents daily activity.

Other

MeasureTime frameDescription
Geometric Mean Titers Against the Influenza Virus Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineDay 0 (pre-vaccination) up to Day 21 post-vaccinationAnti-influenza antibodies were measured using a hemagglutination inhibition (HAI) assay.
Number of Participants With Seroprotection Against Influenza Vaccine Antigens Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineDay 0 (pre-vaccination) and Day 21 post-vaccinationAnti-influenza antibodies were measured using a hemagglutination inhibition (HAI) assay. Seroprotection was defined as a pre-vaccination or a post-vaccination titer ≥ 40 (l/dil).
Number of Adult Participants With Seroconversion to Influenza Virus Vaccine Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineDay 0 (pre-vaccination) and Day 21 post-vaccinationAnti-influenza antibodies were measured using a hemagglutination inhibition (HAI) assay. Seroconversion was defined as either a pre-vaccination titer \< 10 (1/dil) and a post-vaccination titer ≥ 40 (1/dil), or a pre-vaccination titer ≥ 10 (1/dil) and a ≥ 4-fold increase in post-vaccination titer.
Number of Participants With Influenza Antibody Titers of <1:10 Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineDay 0 (pre-vaccination) and Day 21 post-vaccinationAnti-influenza antibodies were measured using a hemagglutination inhibition (HAI) assay to determine pre-vaccination and post-vaccination titers of \<1:10.

Countries

United States

Participant flow

Recruitment details

The study participants were enrolled from 19 through 27 September 2012 at 4 clinic centers in the United States.

Pre-assignment details

A total of 200 participants who met all of the inclusion and none of the exclusion criteria were randomized and vaccinated in this study.

Participants by arm

ArmCount
Fluzone® Vaccine (Group 1)
Adults 18 to \< 65 years of age received one dose of Fluzone vaccine intramuscularly
50
Fluzone® Intradermal Vaccine (Group 2)
Adults 18 to \< 65 years of age received one dose of Fluzone Intradermal vaccine intradermally
50
Fluzone® Vaccine (Group 3)
Adults ≥ 65 years of age received one dose of Fluzone vaccine intramuscularly
51
Fluzone® High-Dose Vaccine (Group 4)
Adults ≥ 65 years of age received one dose of Fluzone High-Dose vaccine intramuscularly
49
Total200

Baseline characteristics

CharacteristicFluzone® Intradermal Vaccine (Group 2)Fluzone® Vaccine (Group 3)Fluzone® Vaccine (Group 1)Fluzone® High-Dose Vaccine (Group 4)Total
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants51 Participants0 Participants49 Participants100 Participants
Age, Categorical
Between 18 and 65 years
50 Participants0 Participants50 Participants0 Participants100 Participants
Age Continuous40.5 Years
STANDARD_DEVIATION 14.2
73.3 Years
STANDARD_DEVIATION 5.7
43.4 Years
STANDARD_DEVIATION 13.6
72.2 Years
STANDARD_DEVIATION 5.2
57.4 Years
STANDARD_DEVIATION 18.7
Region of Enrollment
United States
50 Participants51 Participants50 Participants49 Participants200 Participants
Sex: Female, Male
Female
29 Participants32 Participants31 Participants35 Participants127 Participants
Sex: Female, Male
Male
21 Participants19 Participants19 Participants14 Participants73 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —
other
Total, other adverse events
12 / 5020 / 5013 / 5119 / 49
serious
Total, serious adverse events
0 / 500 / 502 / 510 / 49

Outcome results

Primary

Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose Vaccine

Solicited injection site: Pain, Erythema, Swelling, Induration, and Ecchymosis; Solicited systemic reactions: Fever (Temperature), Headache, Malaise, Myalgia, and Shivering. Grade 3 injection site: Pain - Significant, prevents daily activity; Erythema, Swelling, Induration, and Ecchymosis - \>100 mm. Grade 3 systemic reactions: Fever ≥39.0°C; Headache, Malaise, Myalgia, and Shivering - significant, prevents daily activity.

Time frame: Day 0 up to Day 7 post-vaccination

Population: Solicited injection site reactions and systemic reactions were assessed in the Safety Analysis Set.

ArmMeasureGroupValue (NUMBER)
Fluzone® Vaccine (Group 1)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineInjection site Swelling1 Participants
Fluzone® Vaccine (Group 1)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3 Injection site Ecchymosis0 Participants
Fluzone® Vaccine (Group 1)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineInjection site Erythema1 Participants
Fluzone® Vaccine (Group 1)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3 Malaise0 Participants
Fluzone® Vaccine (Group 1)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3 Injection site Pain0 Participants
Fluzone® Vaccine (Group 1)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3 Fever0 Participants
Fluzone® Vaccine (Group 1)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineHeadache10 Participants
Fluzone® Vaccine (Group 1)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineMyalgia10 Participants
Fluzone® Vaccine (Group 1)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3 Injection site Erythema0 Participants
Fluzone® Vaccine (Group 1)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3 Headache1 Participants
Fluzone® Vaccine (Group 1)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineInjection site Induration1 Participants
Fluzone® Vaccine (Group 1)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3 Myalgia0 Participants
Fluzone® Vaccine (Group 1)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineInjection site Pain12 Participants
Fluzone® Vaccine (Group 1)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineFever2 Participants
Fluzone® Vaccine (Group 1)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineInjection site Ecchymosis0 Participants
Fluzone® Vaccine (Group 1)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineShivering4 Participants
Fluzone® Vaccine (Group 1)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3Injection site Induration0 Participants
Fluzone® Vaccine (Group 1)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineMalaise11 Participants
Fluzone® Vaccine (Group 1)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3 Injection site Swelling0 Participants
Fluzone® Vaccine (Group 1)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3 Shivering0 Participants
Fluzone® Intradermal Vaccine (Group 2)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineMalaise11 Participants
Fluzone® Intradermal Vaccine (Group 2)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineInjection site Swelling9 Participants
Fluzone® Intradermal Vaccine (Group 2)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineInjection site Pain20 Participants
Fluzone® Intradermal Vaccine (Group 2)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineHeadache12 Participants
Fluzone® Intradermal Vaccine (Group 2)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3 Injection site Pain0 Participants
Fluzone® Intradermal Vaccine (Group 2)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineFever0 Participants
Fluzone® Intradermal Vaccine (Group 2)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3 Injection site Erythema0 Participants
Fluzone® Intradermal Vaccine (Group 2)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineInjection site Erythema16 Participants
Fluzone® Intradermal Vaccine (Group 2)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3Injection site Induration0 Participants
Fluzone® Intradermal Vaccine (Group 2)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3 Headache1 Participants
Fluzone® Intradermal Vaccine (Group 2)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3 Shivering0 Participants
Fluzone® Intradermal Vaccine (Group 2)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3 Injection site Ecchymosis0 Participants
Fluzone® Intradermal Vaccine (Group 2)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3 Malaise0 Participants
Fluzone® Intradermal Vaccine (Group 2)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineInjection site Induration4 Participants
Fluzone® Intradermal Vaccine (Group 2)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineMyalgia10 Participants
Fluzone® Intradermal Vaccine (Group 2)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3 Fever0 Participants
Fluzone® Intradermal Vaccine (Group 2)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3 Myalgia0 Participants
Fluzone® Intradermal Vaccine (Group 2)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3 Injection site Swelling0 Participants
Fluzone® Intradermal Vaccine (Group 2)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineShivering4 Participants
Fluzone® Intradermal Vaccine (Group 2)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineInjection site Ecchymosis1 Participants
Fluzone® Vaccine (Group 3)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineInjection site Induration0 Participants
Fluzone® Vaccine (Group 3)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3 Injection site Ecchymosis0 Participants
Fluzone® Vaccine (Group 3)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineFever0 Participants
Fluzone® Vaccine (Group 3)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3 Fever0 Participants
Fluzone® Vaccine (Group 3)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineHeadache11 Participants
Fluzone® Vaccine (Group 3)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3 Headache0 Participants
Fluzone® Vaccine (Group 3)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineMalaise10 Participants
Fluzone® Vaccine (Group 3)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3 Malaise0 Participants
Fluzone® Vaccine (Group 3)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineMyalgia13 Participants
Fluzone® Vaccine (Group 3)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3 Myalgia2 Participants
Fluzone® Vaccine (Group 3)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineShivering4 Participants
Fluzone® Vaccine (Group 3)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3 Shivering0 Participants
Fluzone® Vaccine (Group 3)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineInjection site Pain12 Participants
Fluzone® Vaccine (Group 3)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3 Injection site Pain0 Participants
Fluzone® Vaccine (Group 3)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineInjection site Erythema0 Participants
Fluzone® Vaccine (Group 3)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3 Injection site Erythema0 Participants
Fluzone® Vaccine (Group 3)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineInjection site Swelling0 Participants
Fluzone® Vaccine (Group 3)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3 Injection site Swelling0 Participants
Fluzone® Vaccine (Group 3)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3Injection site Induration0 Participants
Fluzone® Vaccine (Group 3)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineInjection site Ecchymosis0 Participants
Fluzone® High-Dose Vaccine (Group 4)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3 Shivering0 Participants
Fluzone® High-Dose Vaccine (Group 4)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineInjection site Ecchymosis0 Participants
Fluzone® High-Dose Vaccine (Group 4)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineInjection site Swelling1 Participants
Fluzone® High-Dose Vaccine (Group 4)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineShivering3 Participants
Fluzone® High-Dose Vaccine (Group 4)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3 Myalgia0 Participants
Fluzone® High-Dose Vaccine (Group 4)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineFever0 Participants
Fluzone® High-Dose Vaccine (Group 4)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3 Injection site Swelling0 Participants
Fluzone® High-Dose Vaccine (Group 4)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineMyalgia7 Participants
Fluzone® High-Dose Vaccine (Group 4)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3 Malaise0 Participants
Fluzone® High-Dose Vaccine (Group 4)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineMalaise7 Participants
Fluzone® High-Dose Vaccine (Group 4)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineInjection site Induration1 Participants
Fluzone® High-Dose Vaccine (Group 4)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3 Headache0 Participants
Fluzone® High-Dose Vaccine (Group 4)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineHeadache7 Participants
Fluzone® High-Dose Vaccine (Group 4)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3 Injection site Ecchymosis0 Participants
Fluzone® High-Dose Vaccine (Group 4)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3Injection site Induration0 Participants
Fluzone® High-Dose Vaccine (Group 4)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineInjection site Erythema1 Participants
Fluzone® High-Dose Vaccine (Group 4)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3 Injection site Pain0 Participants
Fluzone® High-Dose Vaccine (Group 4)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3 Fever0 Participants
Fluzone® High-Dose Vaccine (Group 4)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineGrade 3 Injection site Erythema0 Participants
Fluzone® High-Dose Vaccine (Group 4)Number of Participants Reporting Solicited Injection Site and Systemic Reactions Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineInjection site Pain19 Participants
Other Pre-specified

Geometric Mean Titers Against the Influenza Virus Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose Vaccine

Anti-influenza antibodies were measured using a hemagglutination inhibition (HAI) assay.

Time frame: Day 0 (pre-vaccination) up to Day 21 post-vaccination

Population: Geometric mean titers against the influenza virus antigens were assessed in the Per-Protocol Analysis Set.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Fluzone® Vaccine (Group 1)Geometric Mean Titers Against the Influenza Virus Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H1N1 (Pre-vaccination; N = 46, 46, 49, 46)28.3 Titers
Fluzone® Vaccine (Group 1)Geometric Mean Titers Against the Influenza Virus Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H1N1 (Post-vaccination; N = 46, 47, 49, 46)1068 Titers
Fluzone® Vaccine (Group 1)Geometric Mean Titers Against the Influenza Virus Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H3N2 (Pre-vaccination; N = 46, 46, 49, 46)29.1 Titers
Fluzone® Vaccine (Group 1)Geometric Mean Titers Against the Influenza Virus Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H3N2 (Post-vaccination; N = 45, 47, 49, 46)460 Titers
Fluzone® Vaccine (Group 1)Geometric Mean Titers Against the Influenza Virus Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineB (Pre-vaccination; N = 46, 46, 49, 46)17.9 Titers
Fluzone® Vaccine (Group 1)Geometric Mean Titers Against the Influenza Virus Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineB (Post-vaccination; N = 45, 47, 49, 46)169 Titers
Fluzone® Intradermal Vaccine (Group 2)Geometric Mean Titers Against the Influenza Virus Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineB (Post-vaccination; N = 45, 47, 49, 46)129 Titers
Fluzone® Intradermal Vaccine (Group 2)Geometric Mean Titers Against the Influenza Virus Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H3N2 (Post-vaccination; N = 45, 47, 49, 46)599 Titers
Fluzone® Intradermal Vaccine (Group 2)Geometric Mean Titers Against the Influenza Virus Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H1N1 (Pre-vaccination; N = 46, 46, 49, 46)30.7 Titers
Fluzone® Intradermal Vaccine (Group 2)Geometric Mean Titers Against the Influenza Virus Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H3N2 (Pre-vaccination; N = 46, 46, 49, 46)23.6 Titers
Fluzone® Intradermal Vaccine (Group 2)Geometric Mean Titers Against the Influenza Virus Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H1N1 (Post-vaccination; N = 46, 47, 49, 46)1473 Titers
Fluzone® Intradermal Vaccine (Group 2)Geometric Mean Titers Against the Influenza Virus Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineB (Pre-vaccination; N = 46, 46, 49, 46)20.9 Titers
Fluzone® Vaccine (Group 3)Geometric Mean Titers Against the Influenza Virus Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H1N1 (Post-vaccination; N = 46, 47, 49, 46)246 Titers
Fluzone® Vaccine (Group 3)Geometric Mean Titers Against the Influenza Virus Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H3N2 (Pre-vaccination; N = 46, 46, 49, 46)68.5 Titers
Fluzone® Vaccine (Group 3)Geometric Mean Titers Against the Influenza Virus Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H3N2 (Post-vaccination; N = 45, 47, 49, 46)264 Titers
Fluzone® Vaccine (Group 3)Geometric Mean Titers Against the Influenza Virus Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineB (Post-vaccination; N = 45, 47, 49, 46)35.2 Titers
Fluzone® Vaccine (Group 3)Geometric Mean Titers Against the Influenza Virus Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineB (Pre-vaccination; N = 46, 46, 49, 46)13.7 Titers
Fluzone® Vaccine (Group 3)Geometric Mean Titers Against the Influenza Virus Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H1N1 (Pre-vaccination; N = 46, 46, 49, 46)58.6 Titers
Fluzone® High-Dose Vaccine (Group 4)Geometric Mean Titers Against the Influenza Virus Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineB (Pre-vaccination; N = 46, 46, 49, 46)18.7 Titers
Fluzone® High-Dose Vaccine (Group 4)Geometric Mean Titers Against the Influenza Virus Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineB (Post-vaccination; N = 45, 47, 49, 46)60.1 Titers
Fluzone® High-Dose Vaccine (Group 4)Geometric Mean Titers Against the Influenza Virus Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H1N1 (Post-vaccination; N = 46, 47, 49, 46)369 Titers
Fluzone® High-Dose Vaccine (Group 4)Geometric Mean Titers Against the Influenza Virus Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H3N2 (Post-vaccination; N = 45, 47, 49, 46)392 Titers
Fluzone® High-Dose Vaccine (Group 4)Geometric Mean Titers Against the Influenza Virus Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H1N1 (Pre-vaccination; N = 46, 46, 49, 46)81.8 Titers
Fluzone® High-Dose Vaccine (Group 4)Geometric Mean Titers Against the Influenza Virus Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H3N2 (Pre-vaccination; N = 46, 46, 49, 46)78.2 Titers
Other Pre-specified

Number of Adult Participants With Seroconversion to Influenza Virus Vaccine Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose Vaccine

Anti-influenza antibodies were measured using a hemagglutination inhibition (HAI) assay. Seroconversion was defined as either a pre-vaccination titer \< 10 (1/dil) and a post-vaccination titer ≥ 40 (1/dil), or a pre-vaccination titer ≥ 10 (1/dil) and a ≥ 4-fold increase in post-vaccination titer.

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

Population: Seroconversion to the influenza virus vaccine antigens was assessed in the Per-Protocol Analysis Set.

ArmMeasureGroupValue (NUMBER)
Fluzone® Vaccine (Group 1)Number of Adult Participants With Seroconversion to Influenza Virus Vaccine Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H1N1 (N = 46, 46, 49, 46)43 Participants
Fluzone® Vaccine (Group 1)Number of Adult Participants With Seroconversion to Influenza Virus Vaccine Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineB (N = 45, 46, 49, 46)36 Participants
Fluzone® Vaccine (Group 1)Number of Adult Participants With Seroconversion to Influenza Virus Vaccine Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H3N2 (N = 45, 46, 49, 46)34 Participants
Fluzone® Intradermal Vaccine (Group 2)Number of Adult Participants With Seroconversion to Influenza Virus Vaccine Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H1N1 (N = 46, 46, 49, 46)43 Participants
Fluzone® Intradermal Vaccine (Group 2)Number of Adult Participants With Seroconversion to Influenza Virus Vaccine Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineB (N = 45, 46, 49, 46)33 Participants
Fluzone® Intradermal Vaccine (Group 2)Number of Adult Participants With Seroconversion to Influenza Virus Vaccine Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H3N2 (N = 45, 46, 49, 46)39 Participants
Fluzone® Vaccine (Group 3)Number of Adult Participants With Seroconversion to Influenza Virus Vaccine Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H3N2 (N = 45, 46, 49, 46)19 Participants
Fluzone® Vaccine (Group 3)Number of Adult Participants With Seroconversion to Influenza Virus Vaccine Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H1N1 (N = 46, 46, 49, 46)21 Participants
Fluzone® Vaccine (Group 3)Number of Adult Participants With Seroconversion to Influenza Virus Vaccine Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineB (N = 45, 46, 49, 46)13 Participants
Fluzone® High-Dose Vaccine (Group 4)Number of Adult Participants With Seroconversion to Influenza Virus Vaccine Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H1N1 (N = 46, 46, 49, 46)26 Participants
Fluzone® High-Dose Vaccine (Group 4)Number of Adult Participants With Seroconversion to Influenza Virus Vaccine Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineB (N = 45, 46, 49, 46)16 Participants
Fluzone® High-Dose Vaccine (Group 4)Number of Adult Participants With Seroconversion to Influenza Virus Vaccine Antigens Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H3N2 (N = 45, 46, 49, 46)28 Participants
Other Pre-specified

Number of Participants With Influenza Antibody Titers of <1:10 Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose Vaccine

Anti-influenza antibodies were measured using a hemagglutination inhibition (HAI) assay to determine pre-vaccination and post-vaccination titers of \<1:10.

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

Population: Antibody responses to the influenza vaccine antigens were assessed in the Per-Protocol Analysis Set.

ArmMeasureGroupValue (NUMBER)
Fluzone® Vaccine (Group 1)Number of Participants With Influenza Antibody Titers of <1:10 Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H1N1 (Pre-vaccination; N = 46, 46, 49, 46)18 Participants
Fluzone® Vaccine (Group 1)Number of Participants With Influenza Antibody Titers of <1:10 Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H1N1 (Post-vaccination; N = 46, 47, 49, 46)0 Participants
Fluzone® Vaccine (Group 1)Number of Participants With Influenza Antibody Titers of <1:10 Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H3N2 (pre-vaccination; N = 46, 46, 49, 46)17 Participants
Fluzone® Vaccine (Group 1)Number of Participants With Influenza Antibody Titers of <1:10 Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H3N2 (Post-vaccination; N = 45, 47, 49, 46)0 Participants
Fluzone® Vaccine (Group 1)Number of Participants With Influenza Antibody Titers of <1:10 Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineB (Pre-vaccination; N = 46, 46, 49, 46)12 Participants
Fluzone® Vaccine (Group 1)Number of Participants With Influenza Antibody Titers of <1:10 Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineB (Post-vaccination; N = 45, 47, 49, 46)0 Participants
Fluzone® Intradermal Vaccine (Group 2)Number of Participants With Influenza Antibody Titers of <1:10 Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineB (Post-vaccination; N = 45, 47, 49, 46)1 Participants
Fluzone® Intradermal Vaccine (Group 2)Number of Participants With Influenza Antibody Titers of <1:10 Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H3N2 (pre-vaccination; N = 46, 46, 49, 46)19 Participants
Fluzone® Intradermal Vaccine (Group 2)Number of Participants With Influenza Antibody Titers of <1:10 Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H1N1 (Pre-vaccination; N = 46, 46, 49, 46)17 Participants
Fluzone® Intradermal Vaccine (Group 2)Number of Participants With Influenza Antibody Titers of <1:10 Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineB (Pre-vaccination; N = 46, 46, 49, 46)9 Participants
Fluzone® Intradermal Vaccine (Group 2)Number of Participants With Influenza Antibody Titers of <1:10 Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H1N1 (Post-vaccination; N = 46, 47, 49, 46)1 Participants
Fluzone® Intradermal Vaccine (Group 2)Number of Participants With Influenza Antibody Titers of <1:10 Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H3N2 (Post-vaccination; N = 45, 47, 49, 46)1 Participants
Fluzone® Vaccine (Group 3)Number of Participants With Influenza Antibody Titers of <1:10 Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H1N1 (Post-vaccination; N = 46, 47, 49, 46)0 Participants
Fluzone® Vaccine (Group 3)Number of Participants With Influenza Antibody Titers of <1:10 Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H3N2 (pre-vaccination; N = 46, 46, 49, 46)6 Participants
Fluzone® Vaccine (Group 3)Number of Participants With Influenza Antibody Titers of <1:10 Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineB (Post-vaccination; N = 45, 47, 49, 46)4 Participants
Fluzone® Vaccine (Group 3)Number of Participants With Influenza Antibody Titers of <1:10 Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H3N2 (Post-vaccination; N = 45, 47, 49, 46)0 Participants
Fluzone® Vaccine (Group 3)Number of Participants With Influenza Antibody Titers of <1:10 Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineB (Pre-vaccination; N = 46, 46, 49, 46)17 Participants
Fluzone® Vaccine (Group 3)Number of Participants With Influenza Antibody Titers of <1:10 Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H1N1 (Pre-vaccination; N = 46, 46, 49, 46)6 Participants
Fluzone® High-Dose Vaccine (Group 4)Number of Participants With Influenza Antibody Titers of <1:10 Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineB (Pre-vaccination; N = 46, 46, 49, 46)13 Participants
Fluzone® High-Dose Vaccine (Group 4)Number of Participants With Influenza Antibody Titers of <1:10 Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H3N2 (Post-vaccination; N = 45, 47, 49, 46)0 Participants
Fluzone® High-Dose Vaccine (Group 4)Number of Participants With Influenza Antibody Titers of <1:10 Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H1N1 (Post-vaccination; N = 46, 47, 49, 46)0 Participants
Fluzone® High-Dose Vaccine (Group 4)Number of Participants With Influenza Antibody Titers of <1:10 Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H1N1 (Pre-vaccination; N = 46, 46, 49, 46)6 Participants
Fluzone® High-Dose Vaccine (Group 4)Number of Participants With Influenza Antibody Titers of <1:10 Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineB (Post-vaccination; N = 45, 47, 49, 46)1 Participants
Fluzone® High-Dose Vaccine (Group 4)Number of Participants With Influenza Antibody Titers of <1:10 Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H3N2 (pre-vaccination; N = 46, 46, 49, 46)2 Participants
Other Pre-specified

Number of Participants With Seroprotection Against Influenza Vaccine Antigens Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose Vaccine

Anti-influenza antibodies were measured using a hemagglutination inhibition (HAI) assay. Seroprotection was defined as a pre-vaccination or a post-vaccination titer ≥ 40 (l/dil).

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

Population: Seroprotection against influenza vaccine antigens were assessed in the Per-Protocol Analysis Set.

ArmMeasureGroupValue (NUMBER)
Fluzone® Vaccine (Group 1)Number of Participants With Seroprotection Against Influenza Vaccine Antigens Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineB (Pre-vaccination; N = 46, 46, 49, 46)9 Participants
Fluzone® Vaccine (Group 1)Number of Participants With Seroprotection Against Influenza Vaccine Antigens Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H3N2 (Pre-vaccination; N = 46, 46, 49, 46)22 Participants
Fluzone® Vaccine (Group 1)Number of Participants With Seroprotection Against Influenza Vaccine Antigens Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineB (Post-vaccination; N = 45, 47, 49, 46)45 Participants
Fluzone® Vaccine (Group 1)Number of Participants With Seroprotection Against Influenza Vaccine Antigens Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H3N2 (Post-vaccination; N = 45, 47, 49, 46)44 Participants
Fluzone® Vaccine (Group 1)Number of Participants With Seroprotection Against Influenza Vaccine Antigens Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H1N1 (Post-vaccination; N = 46, 47, 49, 46)46 Participants
Fluzone® Vaccine (Group 1)Number of Participants With Seroprotection Against Influenza Vaccine Antigens Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H1N1 (Pre-vaccination; N = 46, 46, 49, 46)22 Participants
Fluzone® Intradermal Vaccine (Group 2)Number of Participants With Seroprotection Against Influenza Vaccine Antigens Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineB (Post-vaccination; N = 45, 47, 49, 46)40 Participants
Fluzone® Intradermal Vaccine (Group 2)Number of Participants With Seroprotection Against Influenza Vaccine Antigens Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H1N1 (Pre-vaccination; N = 46, 46, 49, 46)23 Participants
Fluzone® Intradermal Vaccine (Group 2)Number of Participants With Seroprotection Against Influenza Vaccine Antigens Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H1N1 (Post-vaccination; N = 46, 47, 49, 46)46 Participants
Fluzone® Intradermal Vaccine (Group 2)Number of Participants With Seroprotection Against Influenza Vaccine Antigens Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H3N2 (Pre-vaccination; N = 46, 46, 49, 46)15 Participants
Fluzone® Intradermal Vaccine (Group 2)Number of Participants With Seroprotection Against Influenza Vaccine Antigens Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H3N2 (Post-vaccination; N = 45, 47, 49, 46)45 Participants
Fluzone® Intradermal Vaccine (Group 2)Number of Participants With Seroprotection Against Influenza Vaccine Antigens Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineB (Pre-vaccination; N = 46, 46, 49, 46)15 Participants
Fluzone® Vaccine (Group 3)Number of Participants With Seroprotection Against Influenza Vaccine Antigens Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H3N2 (Post-vaccination; N = 45, 47, 49, 46)46 Participants
Fluzone® Vaccine (Group 3)Number of Participants With Seroprotection Against Influenza Vaccine Antigens Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H1N1 (Post-vaccination; N = 46, 47, 49, 46)49 Participants
Fluzone® Vaccine (Group 3)Number of Participants With Seroprotection Against Influenza Vaccine Antigens Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineB (Post-vaccination; N = 45, 47, 49, 46)26 Participants
Fluzone® Vaccine (Group 3)Number of Participants With Seroprotection Against Influenza Vaccine Antigens Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H1N1 (Pre-vaccination; N = 46, 46, 49, 46)32 Participants
Fluzone® Vaccine (Group 3)Number of Participants With Seroprotection Against Influenza Vaccine Antigens Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineB (Pre-vaccination; N = 46, 46, 49, 46)8 Participants
Fluzone® Vaccine (Group 3)Number of Participants With Seroprotection Against Influenza Vaccine Antigens Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H3N2 (Pre-vaccination; N = 46, 46, 49, 46)33 Participants
Fluzone® High-Dose Vaccine (Group 4)Number of Participants With Seroprotection Against Influenza Vaccine Antigens Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineB (Pre-vaccination; N = 46, 46, 49, 46)13 Participants
Fluzone® High-Dose Vaccine (Group 4)Number of Participants With Seroprotection Against Influenza Vaccine Antigens Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H3N2 (Post-vaccination; N = 45, 47, 49, 46)45 Participants
Fluzone® High-Dose Vaccine (Group 4)Number of Participants With Seroprotection Against Influenza Vaccine Antigens Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H1N1 (Post-vaccination; N = 46, 47, 49, 46)45 Participants
Fluzone® High-Dose Vaccine (Group 4)Number of Participants With Seroprotection Against Influenza Vaccine Antigens Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H1N1 (Pre-vaccination; N = 46, 46, 49, 46)33 Participants
Fluzone® High-Dose Vaccine (Group 4)Number of Participants With Seroprotection Against Influenza Vaccine Antigens Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineB (Post-vaccination; N = 45, 47, 49, 46)33 Participants
Fluzone® High-Dose Vaccine (Group 4)Number of Participants With Seroprotection Against Influenza Vaccine Antigens Before and Following Vaccination With Fluzone® or Fluzone® Intradermal or Fluzone® High-Dose VaccineA/H3N2 (Pre-vaccination; N = 46, 46, 49, 46)31 Participants

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