Influenza Clinical Trial
Official title:
Safety and Immunogenicity of Revaccination With Influenza Vaccine in Ambulatory Elderly Subjects Previously Vaccinated With Fluzone ID, Fluzone HD, and Fluzone® IM
Verified date | December 2013 |
Source | Sanofi |
Contact | n/a |
Is FDA regulated | No |
Health authority | United States: Food and Drug Administration |
Study type | Interventional |
This is a multi-center study designed to evaluate the safety and immunogenicity of a Fluzone
revaccination in elderly adults aged ≥ 65 years.
Primary Objective:
To describe the safety profile for all subjects.
Secondary Objective:
To describe immunogenicity 28 days following revaccination with one of three Fluzone
formulations.
Status | Completed |
Enrollment | 807 |
Est. completion date | July 2009 |
Est. primary completion date | June 2009 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | Both |
Age group | 65 Years and older |
Eligibility |
Inclusion Criteria : - Aged = 65 years on the day of vaccination - Enrolled in and completed study FID29 and received the correct vaccine for the group to which they were randomized - Informed consent form signed and dated - Able to attend all scheduled visits and to comply with all trial procedures - Subject is medically stable. Exclusion Criteria : - Known systemic hypersensitivity to any of the vaccine components or history of a life-threatening reaction to the trial vaccine or to a vaccine containing any of the same substances - Participation in another clinical trial investigating a vaccine, drug, medical device, or a medical procedure in the four weeks preceding the trial vaccination - Planned participation in another clinical trial during the present trial period - Known or suspected 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 - Chronic illness, at a stage that could interfere with trial conduct or completion, in the opinion of the investigator - Current alcohol abuse or drug addiction that may interfere with the subject's ability to comply with trial procedures - Receipt of blood or blood-derived products in the past 3 months, that might interfere with the assessment of immune response - Receipt of any vaccination in the 4 weeks preceding the trial vaccination - Planned receipt of any vaccine in the 4 weeks following the trial vaccination - Known human immunodeficiency virus (HIV), hepatitis B (HBs) antigen, or Hepatitis C seropositivity. - Previous vaccination against influenza in the past 6 months with the trial vaccine or another vaccine - Thrombocytopenia, bleeding disorder or anticoagulants in the 3 weeks preceding inclusion 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 - Neoplastic disease or any hematologic malignancy, (except localized skin or prostate cancer that is stable at the time of vaccination in the absence of therapy, as well as subjects who have a history of neoplastic disease and who have been disease free for = 5 years). - Personal or family history of Guillain-Barré Syndrome. |
Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Prevention
Country | Name | City | State |
---|---|---|---|
n/a |
Lead Sponsor | Collaborator |
---|---|
Sanofi Pasteur, a Sanofi Company |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Number of Participants Reporting Solicited Injection Site and Systemic Reactions After Fluzone Intradermal or Fluzone Intramuscular or Fluzone High-dose Vaccine Injection | Solicited injection site reactions: Pain, Erythema (redness), Swelling, Induration, Ecchymosis, Pruritus. Solicited systemic reactions: Fever, (Temperature), Headache, Malaise, Myalgia, and Shivering. | Days 0 through 7 post vaccination | No |
Secondary | Geometric Mean Titers (GMTs) Before and After Vaccination With Fluzone Intradermal or Fluzone Intramuscular or Fluzone High-dose Vaccine Injection | Serum antibody titers for the influenza vaccine serogroups A/H1N1, A/H3N2, and B were assessed by the hemagglutinin inhibition (HAI) assay. | Day 0 and Day 28 post-vaccination | No |
Secondary | Percentage of Participants Who Achieved Seroprotection Post-Vaccination With Fluzone Intradermal or Fluzone Intramuscular or Fluzone High-dose Vaccine | Seroprotection was defined as hemagglutinin inhibition (HAI) titer = 1:40 at Day 28. | Days 0 and 28 post-vaccination | No |
Secondary | Percentage of Participants Who Achieved Seroconversion Post-Vaccination With Fluzone Intradermal or Fluzone Intramuscular or Fluzone High-dose Vaccine | Seroconversion was defined as either a pre-vaccination hemagglutinin inhibition (HAI) titer < 1:10 and a post-vaccination titer = 1:40 or a pre- vaccination titer = 1:10 and a minimum 4 fold increase at 28 days post vaccination. | Day 28 post vaccination | No |
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