- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00383526
Study of Inactivated, Split-Virion Influenza Vaccine Compared With the Reference Vaccine Vaxigrip® in the Elderly
Vaccination against influenza is a high priority for the elderly population who present the highest morbidity and mortality rate. However, due to their weak antibody response an improvement of the immune response to influenza vaccination remains an unmet medical need. The purpose of an investigational influenza vaccine candidate administered by an alternate route is to improve immune responses to the vaccine in the elderly population, which could provide additional reductions in influenza-associated morbidity and mortality in this population.
Primary Objective:
To demonstrate that the investigational vaccine induces a better immunogenicity than the reference vaccine in terms of seroprotection rate after the first vaccination.
Secondary Objectives:
Immunogenicity:
To describe the antibody persistence induced by both vaccines at 3, 6, and 12 months after the first vaccination in a subset of subjects.
To describe the immunogenicity of the investigational vaccine after each vaccination using parameters defined in the European Medicines Agency (EMEA) Note for Guidance (CPMP/BWP/214/96) specific to elderly subjects.
Safety:
To demonstrate the tolerance of the investigational vaccine after the first vaccination, in terms of pre-defined solicited systemic reactions.
To describe the safety profile after each vaccination. To describe the effect of repetitive injections on the safety profile.
Study Overview
Status
Intervention / Treatment
Study Type
Enrollment (Actual)
Phase
- Phase 3
Contacts and Locations
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Aged over 60 years on the day of inclusion.
- Informed Consent Form signed.
- Able to attend all scheduled visits and to comply with all trial procedures.
Exclusion Criteria:
- Systemic hypersensitivity to egg proteins, chick proteins, or any of the vaccine components, in particular, neomycin, formaldehyde, and octoxinol 9, or history of a life-threatening reaction to the trial vaccine or a vaccine containing the same substances.
- Febrile illness (oral temperature ≥ 37.5°C or rectal equivalent temperature ≥ 38.0°C) on the day of inclusion.
- Participation in another clinical trial in the four weeks preceding the first trial vaccination.
- Planned participation in another clinical trial during the present trial period.
- Congenital or acquired immunodeficiency, immunosuppressive therapy such as anti-cancer chemotherapy or radiation therapy within the preceding 6 months, or long-term systemic corticosteroids therapy.
- Unstable chronic illness (defined as illness requiring hospitalization or a clinically significant change in medication in the 12 weeks prior to inclusion) at a stage that could interfere with trial conduct or completion.
- Current abuse of alcohol or drug addiction that may interfere with the subject's ability to comply with trial procedures.
- Blood or blood-derived products received in the past 3 months.
- Any vaccination in the 4 weeks preceding the first trial vaccination.
- Vaccination planned in the 4 weeks following the first trial vaccination.
- Previous vaccination against influenza (in the previous 6 months) with the trial vaccine or another vaccine.
- Thrombocytopenia or bleeding disorder contraindicating intramuscular vaccination.
- Subject deprived of freedom by an administrative or court order, or in an emergency setting, or hospitalized without his/her consent.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Prevention
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Study Group 1
|
Vaccine
Other Names:
|
Active Comparator: Study Group 2
|
Vaccine
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
To provide information concerning the immunogenicity of Inactivated, Split-Virion Influenza vaccine
Time Frame: 21 days post-vaccination
|
21 days post-vaccination
|
Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
To provide information concerning the safety of Inactivated, Split-Virion Influenza vaccine
Time Frame: Entire study period
|
Entire study period
|
Collaborators and Investigators
Sponsor
Publications and helpful links
Helpful Links
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- GID17
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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