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
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.
Subjects who previously participated in study FID29 will be invited to participate in this revaccination study. They will be assigned to 1 of 3 groups based on the group they were previously randomized to and the vaccine received in study FID29. ;
Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Prevention
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