Fluarix Immunogenicity and Safety Trial

This study is a randomized, double-blinded, placebo controlled Phase III study to evaluate the immunogenicity and the safety of GSK Bio influenza vaccine (Fluarix) administered intramuscularly in healthy adults aged 18 to 64 years. Vaccination is currently the most effective means of controlling influenza and preventing its complications and mortality in persons at risk. Following vaccination, seroprotective antibody titers are achieved in a high proportion of vaccinated subjects. GlaxoSmithKline Biologicals (GSK Bio) has been marketing an inactivated influenza split vaccine (Fluarix®) since 1992. More than 126 million doses have been distributed and the vaccine is registered in 78 countries. It has been well tolerated and has proven to be highly immunogenic when injected by the intramuscular route.