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Immunogenicity of a Split, Cell-Based, Inactivated, Trivalent Influenza Vaccine in Healthy Adult Subjects

Immunogenicity of Two Dosages of a Split, Cell-Based, Inactivated, Trivalent Influenza Vaccine Administered in Healthy Adult Subjects Aged 18 to 49 Years

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00845429
Enrollment
729
Registered
2009-02-18
Start date
2007-10-31
Completion date
2008-11-30
Last updated
2012-12-19

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

Conditions

Influenza, Myxovirus Infection, Orthomyxoviruses

Keywords

Influenza, Orthomyxoviruses, Split-virion inactivated influenza vaccine, cell-based vaccine, Adults

Brief summary

Primary Objective: To describe the immune response to a single administration of 2 formulations of the investigational cell-based influenza vaccines in healthy adult subjects. Secondary Objective: To describe the safety following a single administration of 2 formulations of the investigational cell-based influenza vaccines in healthy adult subjects.

Detailed description

This is a multi-center study in healthy adult subjects. All subjects will receive a single dose of one of the influenza vaccine formulations and will provide blood samples for immunogenicity assessment.

Interventions

BIOLOGICALInfluenza virus vaccine - cell based (2007-2008 Formulation)

0.5 mL, Intramuscular

BIOLOGICALInfluenza virus vaccine - cell-based (2007-2008 Formulation)

1.0 mL, Intramuscular

BIOLOGICALInfluenza virus vaccine (2007-2008 Formulation)

0.5 mL, Intramuscular

Sponsors

Sanofi
Lead SponsorINDUSTRY

Study design

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

Eligibility

Sex/Gender
ALL
Age
18 Years to 49 Years
Healthy volunteers
Yes

Inclusion criteria

: * Healthy male or female subject, aged ≥ 18 to \< 50 years on the day of inclusion * Informed consent form signed * Able to attend all scheduled visits and to comply with all trial procedures * For a woman of childbearing potential: a negative urine pregnancy test and documented use of an effective method of contraception or abstinence for at least four weeks pre vaccination and up until three weeks post-vaccination

Exclusion criteria

: * Subject currently breast-feeding. * Participation in another clinical trial investigating a vaccine, drug, medical device, or medical procedure in the 4 weeks preceding the trial vaccination. * Planned participation in another clinical trial during the present trial period. * Prior participation in the Phase I trial of FLU INTERPAN (PER.C6) vaccine (study GCE01). * Congenital or history of acquired immunodeficiency, or immunosuppressive therapy such as anti-cancer chemotherapy or radiation therapy within the preceding 6 months. * Systemic corticosteroid therapy as except the use of topical or inhalant corticosteroids * Systemic hypersensitivity to egg proteins, chicken proteins, or to any of the vaccine components, or history of a life-threatening reaction to the trial vaccine or a vaccine containing the same substances. * Chronic illness at a stage that could interfere with trial conduct or completion (chronic illness may include, but is not limited to, cardiac, renal or auto-immune disorders, or diabetes). * Receipt of blood or blood-derived products in the 3 months preceding vaccination. * Receipt of any vaccination in the 4 weeks preceding vaccination, or planned receipt of any vaccination in the 4 weeks following the trial vaccination. * History of influenza infection (confirmed either clinically, serologically or microbiologically) within the 6 months preceding vaccination. * Previous vaccination against influenza (in the 6 months preceding the trial vaccination). * Planned receipt of any other 2007-2008 influenza vaccine. * Thrombocytopenia or bleeding disorder contraindicating intramuscular (IM) vaccination. * Subject deprived of freedom by an administrative or court order, or in an emergency setting, or hospitalized without his/her consent. * History of Guillain-Barré syndrome * Current abuse of alcohol or drug addiction that may interfere with the subject's ability to comply with trial procedures * Any other condition which in the opinion of the investigator would pose a health risk to the participant or interfere with the evaluation of the vaccine.

Design outcomes

Primary

MeasureTime frameDescription
Summary of the Pre- and Post-Vaccination Geometric Mean Titers (GMTs) for Each of the Influenza Vaccine Antigens.Days 0 and 21 post-vaccination
Percentage of Participants With Seroprotection to Each of the Influenza Vaccine Antigen Before and Post-vaccination.Day 21 post-vaccinationSeroprotection was defined as a titer ≥ 40 1/dil, and determined in participants with a valid serology result for the particular Flu strain, including results reported as less than lower limit of quantitation (LLOQ)
Percentage of Participants Achieving Seroconversion or Significant Increase at Day 21 Following Vaccination With Influenza Vaccine.Day 21 post-vaccinationSeroconversion: For participants with a Day 0 pre-vaccination titer \< 10 (1/dil), titer ≥ 40 (1/dil) on Day 21. Significant Increase: For participants with a Day 0 pre-vaccination titer ≥ 10 (1/dil), ≥ 4-fold increase of titer on Day 21.

Secondary

MeasureTime frameDescription
Number of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Day 0 up to Day 7 post-vaccinationSolicited Injection Site Reactions: Pain, erythema or redness, swelling, ecchymosis, and induration. Solicited Systemic Reactions: Fever (temperature), headache, malaise, myalgia, and rigors.

Countries

United States

Participant flow

Recruitment details

Participants were enrolled from 16 to 23 October 2007 in 15 clinical centers in the US.

Pre-assignment details

A total of 729 participants who met the inclusion, but no exclusion criteria were enrolled and vaccinated.

Participants by arm

ArmCount
Group 1: Standard Dose Cell-Based Influenza Vaccine
Participants received a single dose of standard-dose cell-based influenza vaccine; 0.5 ml, intramuscularly.
244
Group 2: High-dose Cell-Based Influenza Vaccine
Participants received a single dose of high-dose cell-based influenza vaccine; 1.0 ml, intramuscularly.
241
Group 3: Licensed Fluzone® Influenza Vaccine
Participants received a single dose of licensed Fluzone® influenza vaccine; 0.5 ml, intramuscularly.
244
Total729

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyLost to Follow-up7910
Overall StudyProtocol Violation547
Overall StudySerious adverse event001
Overall StudyWithdrawal by Subject222

Baseline characteristics

CharacteristicGroup 2: High-dose Cell-Based Influenza VaccineGroup 3: Licensed Fluzone® Influenza VaccineGroup 1: Standard Dose Cell-Based Influenza VaccineTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
241 Participants244 Participants244 Participants729 Participants
Age Continuous34.5 Years
STANDARD_DEVIATION 9.18
34.1 Years
STANDARD_DEVIATION 9.42
34.4 Years
STANDARD_DEVIATION 9.41
34.3 Years
STANDARD_DEVIATION 9.32
Region of Enrollment
United States
241 participants244 participants244 participants729 participants
Sex: Female, Male
Female
162 Participants151 Participants158 Participants471 Participants
Sex: Female, Male
Male
79 Participants93 Participants86 Participants258 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
158 / 244179 / 241199 / 244
serious
Total, serious adverse events
3 / 2444 / 2416 / 244

Outcome results

Primary

Percentage of Participants Achieving Seroconversion or Significant Increase at Day 21 Following Vaccination With Influenza Vaccine.

Seroconversion: For participants with a Day 0 pre-vaccination titer \< 10 (1/dil), titer ≥ 40 (1/dil) on Day 21. Significant Increase: For participants with a Day 0 pre-vaccination titer ≥ 10 (1/dil), ≥ 4-fold increase of titer on Day 21.

Time frame: Day 21 post-vaccination

Population: Seroconversion and significant increase in Influenza vaccine antibodies were assessed in the full analysis set population.

ArmMeasureGroupValue (NUMBER)
Group 1: Standard Dose Cell-Based Influenza VaccinePercentage of Participants Achieving Seroconversion or Significant Increase at Day 21 Following Vaccination With Influenza Vaccine.A/H3N2: Wisconsin (N = 236, 230, 237)50 Percentage of Participants
Group 1: Standard Dose Cell-Based Influenza VaccinePercentage of Participants Achieving Seroconversion or Significant Increase at Day 21 Following Vaccination With Influenza Vaccine.A/H1N1: Solomon Islands (N = 236, 231, 237)54 Percentage of Participants
Group 1: Standard Dose Cell-Based Influenza VaccinePercentage of Participants Achieving Seroconversion or Significant Increase at Day 21 Following Vaccination With Influenza Vaccine.B: Malaysia (N = 235, 233, 237)38 Percentage of Participants
Group 2: High-dose Cell-Based Influenza VaccinePercentage of Participants Achieving Seroconversion or Significant Increase at Day 21 Following Vaccination With Influenza Vaccine.A/H3N2: Wisconsin (N = 236, 230, 237)53 Percentage of Participants
Group 2: High-dose Cell-Based Influenza VaccinePercentage of Participants Achieving Seroconversion or Significant Increase at Day 21 Following Vaccination With Influenza Vaccine.A/H1N1: Solomon Islands (N = 236, 231, 237)63 Percentage of Participants
Group 2: High-dose Cell-Based Influenza VaccinePercentage of Participants Achieving Seroconversion or Significant Increase at Day 21 Following Vaccination With Influenza Vaccine.B: Malaysia (N = 235, 233, 237)38 Percentage of Participants
Group 3: Licensed Fluzone® Influenza VaccinePercentage of Participants Achieving Seroconversion or Significant Increase at Day 21 Following Vaccination With Influenza Vaccine.A/H1N1: Solomon Islands (N = 236, 231, 237)74 Percentage of Participants
Group 3: Licensed Fluzone® Influenza VaccinePercentage of Participants Achieving Seroconversion or Significant Increase at Day 21 Following Vaccination With Influenza Vaccine.B: Malaysia (N = 235, 233, 237)61 Percentage of Participants
Group 3: Licensed Fluzone® Influenza VaccinePercentage of Participants Achieving Seroconversion or Significant Increase at Day 21 Following Vaccination With Influenza Vaccine.A/H3N2: Wisconsin (N = 236, 230, 237)71 Percentage of Participants
Primary

Percentage of Participants With Seroprotection to Each of the Influenza Vaccine Antigen Before and Post-vaccination.

Seroprotection was defined as a titer ≥ 40 1/dil, and determined in participants with a valid serology result for the particular Flu strain, including results reported as less than lower limit of quantitation (LLOQ)

Time frame: Day 21 post-vaccination

Population: Seroprotection was assessed in the full analysis set population.

ArmMeasureGroupValue (NUMBER)
Group 1: Standard Dose Cell-Based Influenza VaccinePercentage of Participants With Seroprotection to Each of the Influenza Vaccine Antigen Before and Post-vaccination.A/H1N1: Solomon Islands Day 0 (N = 236, 231, 237)40 Percentage of Participants
Group 1: Standard Dose Cell-Based Influenza VaccinePercentage of Participants With Seroprotection to Each of the Influenza Vaccine Antigen Before and Post-vaccination.A/H1N1: Solomon Islands Day 21 (N = 236, 232, 238)86 Percentage of Participants
Group 1: Standard Dose Cell-Based Influenza VaccinePercentage of Participants With Seroprotection to Each of the Influenza Vaccine Antigen Before and Post-vaccination.A/H3N2: Wisconsin Day 0 (N = 236, 232, 237)54 Percentage of Participants
Group 1: Standard Dose Cell-Based Influenza VaccinePercentage of Participants With Seroprotection to Each of the Influenza Vaccine Antigen Before and Post-vaccination.A/H3N2: Wisconsin Day 21 (N = 236, 230, 238)94 Percentage of Participants
Group 1: Standard Dose Cell-Based Influenza VaccinePercentage of Participants With Seroprotection to Each of the Influenza Vaccine Antigen Before and Post-vaccination.B: Malaysia Day 0 (N = 236, 233, 238)14 Percentage of Participants
Group 1: Standard Dose Cell-Based Influenza VaccinePercentage of Participants With Seroprotection to Each of the Influenza Vaccine Antigen Before and Post-vaccination.B: Malaysia Day 21 (N = 235, 233, 237)60 Percentage of Participants
Group 2: High-dose Cell-Based Influenza VaccinePercentage of Participants With Seroprotection to Each of the Influenza Vaccine Antigen Before and Post-vaccination.B: Malaysia Day 21 (N = 235, 233, 237)64 Percentage of Participants
Group 2: High-dose Cell-Based Influenza VaccinePercentage of Participants With Seroprotection to Each of the Influenza Vaccine Antigen Before and Post-vaccination.A/H1N1: Solomon Islands Day 0 (N = 236, 231, 237)39 Percentage of Participants
Group 2: High-dose Cell-Based Influenza VaccinePercentage of Participants With Seroprotection to Each of the Influenza Vaccine Antigen Before and Post-vaccination.A/H3N2: Wisconsin Day 21 (N = 236, 230, 238)98 Percentage of Participants
Group 2: High-dose Cell-Based Influenza VaccinePercentage of Participants With Seroprotection to Each of the Influenza Vaccine Antigen Before and Post-vaccination.B: Malaysia Day 0 (N = 236, 233, 238)20 Percentage of Participants
Group 2: High-dose Cell-Based Influenza VaccinePercentage of Participants With Seroprotection to Each of the Influenza Vaccine Antigen Before and Post-vaccination.A/H1N1: Solomon Islands Day 21 (N = 236, 232, 238)90 Percentage of Participants
Group 2: High-dose Cell-Based Influenza VaccinePercentage of Participants With Seroprotection to Each of the Influenza Vaccine Antigen Before and Post-vaccination.A/H3N2: Wisconsin Day 0 (N = 236, 232, 237)62 Percentage of Participants
Group 3: Licensed Fluzone® Influenza VaccinePercentage of Participants With Seroprotection to Each of the Influenza Vaccine Antigen Before and Post-vaccination.A/H1N1: Solomon Islands Day 21 (N = 236, 232, 238)98 Percentage of Participants
Group 3: Licensed Fluzone® Influenza VaccinePercentage of Participants With Seroprotection to Each of the Influenza Vaccine Antigen Before and Post-vaccination.A/H3N2: Wisconsin Day 0 (N = 236, 232, 237)55 Percentage of Participants
Group 3: Licensed Fluzone® Influenza VaccinePercentage of Participants With Seroprotection to Each of the Influenza Vaccine Antigen Before and Post-vaccination.B: Malaysia Day 21 (N = 235, 233, 237)87 Percentage of Participants
Group 3: Licensed Fluzone® Influenza VaccinePercentage of Participants With Seroprotection to Each of the Influenza Vaccine Antigen Before and Post-vaccination.A/H3N2: Wisconsin Day 21 (N = 236, 230, 238)99 Percentage of Participants
Group 3: Licensed Fluzone® Influenza VaccinePercentage of Participants With Seroprotection to Each of the Influenza Vaccine Antigen Before and Post-vaccination.A/H1N1: Solomon Islands Day 0 (N = 236, 231, 237)41 Percentage of Participants
Group 3: Licensed Fluzone® Influenza VaccinePercentage of Participants With Seroprotection to Each of the Influenza Vaccine Antigen Before and Post-vaccination.B: Malaysia Day 0 (N = 236, 233, 238)20 Percentage of Participants
Primary

Summary of the Pre- and Post-Vaccination Geometric Mean Titers (GMTs) for Each of the Influenza Vaccine Antigens.

Time frame: Days 0 and 21 post-vaccination

Population: Geometric mean titers were assessed in the full analysis set population.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Group 1: Standard Dose Cell-Based Influenza VaccineSummary of the Pre- and Post-Vaccination Geometric Mean Titers (GMTs) for Each of the Influenza Vaccine Antigens.A/H1N1: Solomon Islands, Day 0 (N = 236, 231, 237)25.9 Titers
Group 1: Standard Dose Cell-Based Influenza VaccineSummary of the Pre- and Post-Vaccination Geometric Mean Titers (GMTs) for Each of the Influenza Vaccine Antigens.A/H1N1: Solomon Islands, Day 21 (N= 236, 232, 238)184.8 Titers
Group 1: Standard Dose Cell-Based Influenza VaccineSummary of the Pre- and Post-Vaccination Geometric Mean Titers (GMTs) for Each of the Influenza Vaccine Antigens.A/H3N2: Wisconsin, Day 0 (N = 236, 232, 237)51.2 Titers
Group 1: Standard Dose Cell-Based Influenza VaccineSummary of the Pre- and Post-Vaccination Geometric Mean Titers (GMTs) for Each of the Influenza Vaccine Antigens.A/H3N2: Wisconsin, Day 21 (N = 236, 230, 238)288.3 Titers
Group 1: Standard Dose Cell-Based Influenza VaccineSummary of the Pre- and Post-Vaccination Geometric Mean Titers (GMTs) for Each of the Influenza Vaccine Antigens.B: Malaysia, Day 0 (N = 236, 233, 238)13.4 Titers
Group 1: Standard Dose Cell-Based Influenza VaccineSummary of the Pre- and Post-Vaccination Geometric Mean Titers (GMTs) for Each of the Influenza Vaccine Antigens.B: Malaysia, Day 21 (nN= 235, 233, 237)51.1 Titers
Group 2: High-dose Cell-Based Influenza VaccineSummary of the Pre- and Post-Vaccination Geometric Mean Titers (GMTs) for Each of the Influenza Vaccine Antigens.B: Malaysia, Day 21 (nN= 235, 233, 237)53.0 Titers
Group 2: High-dose Cell-Based Influenza VaccineSummary of the Pre- and Post-Vaccination Geometric Mean Titers (GMTs) for Each of the Influenza Vaccine Antigens.A/H1N1: Solomon Islands, Day 0 (N = 236, 231, 237)26.4 Titers
Group 2: High-dose Cell-Based Influenza VaccineSummary of the Pre- and Post-Vaccination Geometric Mean Titers (GMTs) for Each of the Influenza Vaccine Antigens.A/H3N2: Wisconsin, Day 21 (N = 236, 230, 238)351.3 Titers
Group 2: High-dose Cell-Based Influenza VaccineSummary of the Pre- and Post-Vaccination Geometric Mean Titers (GMTs) for Each of the Influenza Vaccine Antigens.B: Malaysia, Day 0 (N = 236, 233, 238)14.3 Titers
Group 2: High-dose Cell-Based Influenza VaccineSummary of the Pre- and Post-Vaccination Geometric Mean Titers (GMTs) for Each of the Influenza Vaccine Antigens.A/H1N1: Solomon Islands, Day 21 (N= 236, 232, 238)226.6 Titers
Group 2: High-dose Cell-Based Influenza VaccineSummary of the Pre- and Post-Vaccination Geometric Mean Titers (GMTs) for Each of the Influenza Vaccine Antigens.A/H3N2: Wisconsin, Day 0 (N = 236, 232, 237)53.4 Titers
Group 3: Licensed Fluzone® Influenza VaccineSummary of the Pre- and Post-Vaccination Geometric Mean Titers (GMTs) for Each of the Influenza Vaccine Antigens.A/H1N1: Solomon Islands, Day 21 (N= 236, 232, 238)425.1 Titers
Group 3: Licensed Fluzone® Influenza VaccineSummary of the Pre- and Post-Vaccination Geometric Mean Titers (GMTs) for Each of the Influenza Vaccine Antigens.A/H3N2: Wisconsin, Day 0 (N = 236, 232, 237)51.5 Titers
Group 3: Licensed Fluzone® Influenza VaccineSummary of the Pre- and Post-Vaccination Geometric Mean Titers (GMTs) for Each of the Influenza Vaccine Antigens.B: Malaysia, Day 21 (nN= 235, 233, 237)108.6 Titers
Group 3: Licensed Fluzone® Influenza VaccineSummary of the Pre- and Post-Vaccination Geometric Mean Titers (GMTs) for Each of the Influenza Vaccine Antigens.A/H3N2: Wisconsin, Day 21 (N = 236, 230, 238)692.4 Titers
Group 3: Licensed Fluzone® Influenza VaccineSummary of the Pre- and Post-Vaccination Geometric Mean Titers (GMTs) for Each of the Influenza Vaccine Antigens.A/H1N1: Solomon Islands, Day 0 (N = 236, 231, 237)26.6 Titers
Group 3: Licensed Fluzone® Influenza VaccineSummary of the Pre- and Post-Vaccination Geometric Mean Titers (GMTs) for Each of the Influenza Vaccine Antigens.B: Malaysia, Day 0 (N = 236, 233, 238)14.2 Titers
Secondary

Number of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.

Solicited Injection Site Reactions: Pain, erythema or redness, swelling, ecchymosis, and induration. Solicited Systemic Reactions: Fever (temperature), headache, malaise, myalgia, and rigors.

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

Population: Safety analysis was on all enrolled and vaccinated participants with available reaction data, intent-to-treat population.

ArmMeasureGroupValue (NUMBER)
Group 1: Standard Dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Grade 3 Headache (Prevents daily activities)3 Participants
Group 1: Standard Dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Any Ecchymosis6 Participants
Group 1: Standard Dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Any Pain103 Participants
Group 1: Standard Dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Any Headache75 Participants
Group 1: Standard Dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Grade 3 Ecchymosis (≥ 5 cm)0 Participants
Group 1: Standard Dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Grade 3 Myalgia (Prevents daily activities)1 Participants
Group 1: Standard Dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Grade 3 Fever (39.0 ºC or 102.2 ºF)0 Participants
Group 1: Standard Dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Any Induration31 Participants
Group 1: Standard Dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Any Erythema36 Participants
Group 1: Standard Dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Any Fever13 Participants
Group 1: Standard Dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Grade 3 Induration (≥ 5 cm)0 Participants
Group 1: Standard Dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Any Solicited Injection Site Reaction117 Participants
Group 1: Standard Dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Any Solicited Systemic Reaction114 Participants
Group 1: Standard Dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Any Myalgia60 Participants
Group 1: Standard Dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Grade 3 Erythema (≥ 5 cm)0 Participants
Group 1: Standard Dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Any Rigors16 Participants
Group 1: Standard Dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Grade 3 Malaise (Prevents daily activities)6 Participants
Group 1: Standard Dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Any Swelling24 Participants
Group 1: Standard Dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Grade 3 Pain (incapacitating, prevents activities)1 Participants
Group 1: Standard Dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Any Malaise58 Participants
Group 1: Standard Dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Grade 3 Swelling (≥ 5 cm)0 Participants
Group 1: Standard Dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Grade 3 Rigors (Prevents daily activities)2 Participants
Group 2: High-dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Grade 3 Rigors (Prevents daily activities)1 Participants
Group 2: High-dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Any Solicited Injection Site Reaction156 Participants
Group 2: High-dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Any Pain144 Participants
Group 2: High-dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Any Rigors9 Participants
Group 2: High-dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Grade 3 Pain (incapacitating, prevents activities)2 Participants
Group 2: High-dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Any Erythema57 Participants
Group 2: High-dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Grade 3 Erythema (≥ 5 cm)0 Participants
Group 2: High-dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Any Swelling23 Participants
Group 2: High-dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Grade 3 Swelling (≥ 5 cm)0 Participants
Group 2: High-dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Any Ecchymosis19 Participants
Group 2: High-dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Grade 3 Ecchymosis (≥ 5 cm)0 Participants
Group 2: High-dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Any Induration29 Participants
Group 2: High-dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Grade 3 Induration (≥ 5 cm)0 Participants
Group 2: High-dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Any Solicited Systemic Reaction126 Participants
Group 2: High-dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Any Fever9 Participants
Group 2: High-dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Grade 3 Fever (39.0 ºC or 102.2 ºF)0 Participants
Group 2: High-dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Any Headache85 Participants
Group 2: High-dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Grade 3 Headache (Prevents daily activities)3 Participants
Group 2: High-dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Any Malaise54 Participants
Group 2: High-dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Grade 3 Malaise (Prevents daily activities)4 Participants
Group 2: High-dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Any Myalgia70 Participants
Group 2: High-dose Cell-Based Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Grade 3 Myalgia (Prevents daily activities)3 Participants
Group 3: Licensed Fluzone® Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Any Ecchymosis14 Participants
Group 3: Licensed Fluzone® Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Grade 3 Rigors (Prevents daily activities)1 Participants
Group 3: Licensed Fluzone® Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Any Headache89 Participants
Group 3: Licensed Fluzone® Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Grade 3 Swelling (≥ 5 cm)1 Participants
Group 3: Licensed Fluzone® Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Grade 3 Myalgia (Prevents daily activities)4 Participants
Group 3: Licensed Fluzone® Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Grade 3 Headache (Prevents daily activities)6 Participants
Group 3: Licensed Fluzone® Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Any Swelling36 Participants
Group 3: Licensed Fluzone® Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Any Pain175 Participants
Group 3: Licensed Fluzone® Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Any Malaise63 Participants
Group 3: Licensed Fluzone® Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Grade 3 Erythema (≥ 5 cm)4 Participants
Group 3: Licensed Fluzone® Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Any Rigors13 Participants
Group 3: Licensed Fluzone® Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Grade 3 Malaise (Prevents daily activities)5 Participants
Group 3: Licensed Fluzone® Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Any Erythema55 Participants
Group 3: Licensed Fluzone® Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Grade 3 Induration (≥ 5 cm)0 Participants
Group 3: Licensed Fluzone® Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Any Solicited Injection Site Reaction184 Participants
Group 3: Licensed Fluzone® Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Any Solicited Systemic Reaction137 Participants
Group 3: Licensed Fluzone® Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Any Induration38 Participants
Group 3: Licensed Fluzone® Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Any Myalgia83 Participants
Group 3: Licensed Fluzone® Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Any Fever11 Participants
Group 3: Licensed Fluzone® Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Grade 3 Ecchymosis (≥ 5 cm)1 Participants
Group 3: Licensed Fluzone® Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Grade 3 Pain (incapacitating, prevents activities)1 Participants
Group 3: Licensed Fluzone® Influenza VaccineNumber of Participants Reporting at Least 1 Solicited Injection Site or Systemic Reaction Post-vaccination With Influenza Vaccine.Grade 3 Fever (39.0 ºC or 102.2 ºF)2 Participants

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