Active clinical trials for "Influenza, Human"

Due to antigenic changes of influenza viruses, the virus strains used in influenza vaccines are adjusted every year according to WHO and CPMP recommendations. Immunogenicity and tolerability of the newly composed vaccines are subject for evaluation in a yearly clinical trial in non-elderly adults and elderly subjects (CPMP/BWP/214/96).

The purpose of this study is to evaluate the safety and immune response of two-doses of GSK Biologicals' candidate influenza vaccine GSK 1557484A with or without adjuvant in adults. The Protocol Posting has been updated in order to comply with the FDA Amendment Act, Sep 2007.

Vaccination is currently the most effective means of controlling influenza and preventing its complications and mortality in persons at risk. Once a year, a meeting of WHO experts takes place, leading to a recommendation on the influenza A and B strains that should be used for the production of vaccine for the coming influenza season. This study is designed to test the safety/reactogenicity and the immunogenicity of the Fluviral Trivalent Split Virion Influenza Vaccine containing the influenza strains recommended for the 2007-2008 season.

To assess persistence of antibody titers 17-18 months after primary immunization with two 0.5mL intramuscular (IM) doses of H5N1 influenza vaccine containing H5N1 influenza antigen, as measured by Hemagglutination Inhibition (HI), Single Radial Hemolysis (SRH), and Microneutralization (MN) test

The trial is a Phase II, open-label trial in healthy subjects aged 18 to 60 years to support the immunogenicity data from previous clinical studies. Objectives: To describe the immune response 21 days after each vaccination. To describe the safety profiles following each vaccination.

Since influenza vaccines are administered every year because of the frequent change in their antigenic composition, the safety and immunogenicity profile of GSK Biologicals' influenza vaccine GSK576389A will be re-evaluated after repeated vaccine administration. In this study, the subjects previously enrolled in study 107973 will receive a dose with the 2007-2008 season's formulations of Fluarix or GSK576389A. Only subjects who were previously enrolled in study 107973 (NCT00386113) are eligible for participation in this study.

This observer blind study is designed to compare the immune response of GSK Biologicals' influenza vaccine GSK576389A when administered using various presentations in adults aged 65 years and older. The Protocol Posting has been updated in order to comply with the FDA Amendment Act, Sep 2007.

The purpose of this study was to evaluate and compare the safety, reactogenicity, immunogenicity, relative efficacy and effectiveness of FluBlok to a licensed trivalent influenza vaccine (TIV)in healthy adults age 50-64 years.

This study will assess the Efficacy, Safety and Tolerability profile of CSL's Influenza Vaccine administered intramuscularly against laboratory-confirmed influenza illness in a population defined as being not at risk of severe complications following influenza infection.

Primary objective: * Immunogenicity To demonstrate that the influenza vaccine administered by intradermal route at least as immunogenic as the adjuvanted influenza vaccine administered by intramuscular route at the same dosage in term of HA antibody titres Secondary objectives Immunogenicity To describe the immune response 21 days after vaccination with the influenza vaccine administered by ID route versus the adjuvanted influenza vaccine administered by IM route.. To describe the compliance of both vaccines administered with the European Medicine Agency (EMEA) Note for Guidance immunogenicity criteria, specific for elderly subjects Safety - To describe the safety profile after vaccination in each group Acceptability To describe the pain at the injection site To describe the comfort of the injection