Active clinical trials for "Influenza, Human"

The purpose of this study is to evaluate the immunogenicity and safety profile of the Avian flu vaccine with and without adjuvant 1 in healthy, young adults. The study is divided down into Parts A1, A2 and B. Groups within each Part will receive two doses of the assigned test article on Study Days 0 and 21. There will be a Safety Monitoring Committee assessment following Day 7 for each part, prior to allowing vaccination of subjects in subsequent Parts of the study.

H7N9 viruses have caused an outbreak of severe respiratory disease in 2013-2014 in China that affected many older adults. This study will evaluate the safety of and immune response to a live attenuated H7N9 vaccine in adults 50 to 70 years old.

This is a study to assess the immune (antibody) response and safety of a bioCSL split virion, inactivated influenza vaccine containing the 2013/2014 formulation of Enzira® vaccine in healthy adult volunteers aged between 18 and 60 years.

Demonstrate non-inferiority of the post-vaccination (Day 22) Hemagglutination inhibition (HI) Geometric Mean Titers (GMTs) of trivalent, inactivated, subunit influenza vaccine (TIV) over the corresponding GMTs of the comparator vaccine for all three strains, in healthy adults aged 50 years and above. Demonstrate non-inferiority of the percentages of subjects achieving seroconversion in antibody titers at Day 22 in the TIV group over the corresponding percentages of subjects in the comparator group for all three strains, in healthy adults aged 50 years and above.

This is a randomized, observer-blinded, placebo-controlled trial in adults ≥18 years old. Randomization will be stratified by age (18 to 49 years and ≥50 years) and by prior influenza immunization within the past three months. Proportions of subjects in the various strata will not be pre-specified; rather, the goal will be to achieve an approximately equal distribution of subjects with these characteristics across the various treatment groups. Treatments will comprise two identical IM doses at a 21-day interval (Day 0 and Day 21), in alternate deltoids. For each subject, study follow-up will span approximately 385 days total, or approximately 13 months from the first dose.

The present study is designed to confirm the safety and immunogenicity of trivalent, surface antigen, inactivated influenza vaccine in 2 age cohorts: 18 to ≤60 years and ≥61 years and the antibody response to each influenza vaccine antigen, as measured by Single Radial Hemolysis (SRH) or Hemagglutination Inhibition (HI) at approximately 21 days post immunization. The vaccine composition will be based on the World Health Organization (WHO) recommended influenza strains for the 2013/2014 Northern Hemisphere vaccine. The results of this study are intended to support the use of this vaccine in future influenza seasons if the recommended vaccine composition remains the same, in compliance with the requirements of the current European Union (EU) recommendations for clinical trials related to yearly licensing of influenza vaccines.

This is a Phase II randomized, double-blinded, controlled study in up to 700 males and non-pregnant females, 19 to 64 years old, inclusive, designed to assess the safety, reactogenicity, and immunogenicity of a monovalent influenza A/H7N9 virus vaccine administered at different dosages (3.75, 7.5, or 15 mcg of HA/0.5 mL dose) given with and without MF59 adjuvant and without adjuvant (15 mcg of HA/0.5 mL dose and 45 mcg of HA/0.75 mL dose). Subjects will receive two doses via intramuscular injection, approximately 21 days apart. Safety, reactogenicity, and immunogenicity data will be collected at standard time points with safety follow-up to continue through one year post dose 2. The duration of the study for each subject will be approximately 13 months.

The aim of this study is to evaluate the safety and immunogenicity of Fluzone® Quadrivalent vaccine in participants aged 6 months to < 9 years at enrollment, divided into 2 age strata (6 months to < 36 months and 3 years to < 9 years) Primary Objective: To describe the safety of the 2013-2014 formulation of Fluzone Quadrivalent vaccine, administered in a 1- or 2-dose schedule, in accordance with Advisory Committee on Immunization Practices (ACIP) recommendations, in children 6 months to < 9 years of age. Observational Objectives: To describe the immunogenicity of the 2013-2014 formulation of Fluzone Quadrivalent vaccine, administered in a 1- or 2-dose schedule in accordance with ACIP recommendations, in children 6 months to < 9 years of age. To submit sera from subjects to the Center for Biologics Evaluation and Research (CBER) for further analysis by the World Health Organization (WHO), the Centers for Disease Control and Prevention (CDC), and the Food and Drug Administration (FDA) to support formulation recommendations for subsequent influenza vaccines.

This study will recruit 35 healthcare workers who had systemic reactions to influenza vaccine the last 2 times they were vaccinated, to ask whether influenza vaccine is indeed associated with systemic reactions in these workers.

The purpose of this study is to evaluate the safety and immunogenicity of IL-YANG Inactivated Split Influenza Vaccine (IL-YANG FLU Vaccine Prefilled Syringe INJ.) administered as a single intramuscular injection.