Active clinical trials for "Influenza, Human"

The purpose of this study is to see whether a single vaccination (injection) with the investigational influenza vaccine is safe in healthy subjects. The study is also designed to evaluate four different dose formulations of the vaccine to see which gives the best immune response.

The purpose of this study is to investigate the safety, tolerability and immunogenicity of ascending doses of a novel, universal flu vaccine, in healthy volunteers.

The purpose of this study is to determine whether half-dose intradermal influenza vaccine is as immunogenic as standard dose intramuscular vaccine in hemodialysis patients.

The purpose of this study is to evaluate the antibody response to each of the three influenza vaccine strains included in the licensed seasonal flu vaccine, as measured by hemagglutination inhibition (HAI) at three weeks post immunization in non-elderly and elderly subjects in compliance with the requirements of the current European Union (EU) recommendations for the evaluation of the immunogenicity for a new formulation of a licensed flu vaccine (CPMP/BWP/214/96).

This is an open study of the use of AdimFlu-V (2012-2013 season) vaccine in young healthy subjects. Subjects aged equal to or over 9 years old and less than 18 years old will receive one dose of vaccine (0.5 mL) by intramuscular injection into the upper arm. Subjects aged equal to or over 3 years old and less than 9 years old will received two doses of vaccine (0.5 mL) by intramuscular injection into the upper arm separated by 4 weeks (28 days). Safety outcomes included immediate reactions at the time of vaccination, solicited local and systemic reactions within 7 days after each vaccination, unsolicited adverse events observed since first vaccination to 28 days after the last dose of vaccination, and serious adverse events during the observation. Sera prepared from blood samples will be collected from each subject immediately prior to, and 4 weeks after each vaccination. Anti-hemagglutinin (HA) antibody titers will be determined using the WHO hemagglutination inhibition reference technique. The central laboratory who is responsible for antibody titrations will not be aware of the background of blood samples (e.g., pre- or post-serum), it is also called observer-blinded. All subjects will be followed, either by clinical visit or by telephone contact, for 8 weeks after the last vaccination for safety reasons.

The purpose of this study is to evaluate immune response and safety of live attenuated influenza H5 vaccine candidate strain A/17/turkey/Turkey/05/133 (H5N2) manufactured by GPO, Thailand in healthy Thais.

The aim of the study is describe the safety and immunogenicity of Fluzone Quadrivalent and Fluzone Intradermal vaccines in adults 18 to < 65 years of age, and to describe the safety and immunogenicity of Fluzone Quadrivalent and Fluzone High-Dose vaccines in adults ≥ 65 years of age. Primary Objective: To describe the safety of the 2013-2014 formulations of Fluzone Quadrivalent and Fluzone Intradermal vaccines in adults 18 to < 65 years of age and the safety of the 2013-2014 formulations of Fluzone Quadrivalent and Fluzone High-Dose vaccines in adults ≥ 65 years of age. Observational objectives: To describe the immunogenicity of the 2013-2014 formulations of Fluzone Quadrivalent and Fluzone Intradermal vaccines in adults 18 to < 65 years of age and the immunogenicity of the 2013-2014 formulations of Fluzone Quadrivalent and Fluzone High-Dose vaccines in adults ≥ 65 years of age. To evaluate the compliance, in terms of immunogenicity, of each study vaccine (Fluzone Quadrivalent, Fluzone Intradermal, and Fluzone High-Dose) in the applicable age group with the historical requirements of the Committee for Human Medicinal Products (CHMP) Note for Guidance (NfG) CPMP/BWP/214/96. To submit sera from selected 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.

The purpose of this study is to: Evaluate the clinical performance of a newly available highly-sensitive rapid influenza test, Xpert Flu. Derive and validate an adult clinical decision guideline to guide clinical testing of influenza patients who meed CDC criteria for antiviral treatment. Evaluate impact of rapid influenza testing for antiviral treatment. Determine cost effectiveness of influenza testing and treatment strategies.

To evaluate the safety and immunogenicity of four influenza vaccines in children 6 months to < 48 months of age

This study assesses the seasonal of influenza vaccine effectiveness in adults hospitalised with laboratory-confirmed influenza through a network of hospitals in France. Also, To better understand the burden of other respiratory viruses such as respiratory syncytial virus (RSV) and SARS-CoV-2 in hospitalized adults, we need to describe and quantify the population hospitalized due to theses other respiratory viruses.