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Clinical Trial Summary

All marketed influenza vaccines are injected by the intramuscular (IM) route. This study will test whether an influenza vaccine is effective when injected by a route other than into the muscle. In order to prove this, the amount of antibodies in the blood will be measured before and after vaccination. In addition, the safety of both influenza vaccines will be tested by evaluating all serious reactions occurring after vaccination. The vaccine injected in this study is similar to the sponsor's marketed intramuscular influenza vaccine (Vaxigrip). In addition, the safety of both influenza vaccines administered by different routes will be tested by evaluating all adverse events and especially all serious reactions.

Primary Objective: To demonstrate and compare the immune response of an influenza vaccine after a single dose when administered by different routes.

Secondary Objectives: To describe the compliance of the immunogenicity of the vaccine with the European Medicine Agency (EMEA) after the first injection.


Clinical Trial Description

n/a


Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Prevention


Related Conditions & MeSH terms


NCT number NCT00258934
Study type Interventional
Source Sanofi
Contact
Status Completed
Phase Phase 2
Start date September 2005
Completion date September 2008

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