View clinical trials related to Influenza.
Filter by:The objective of this study is to assess the safety and immunogenicity of inactivated influenza vaccine (whole virion, Vero cell derived). Subjects will be randomly assigned to receive a single injection of whole virion, Vero cell derived or egg derived influenza vaccine on Day 0. Subjects will return to the study site for safety evaluation at predetermined intervals for 180 days after vaccination. Subjects will also have blood drawn at predetermined intervals to measure their immunologic response to vaccination.
This study compared full-dose Flu vaccine to half-dose Flu-vaccine during the 2004-2005 flu season.
This study is will gather critical information on the safety, tolerability, and the immunogenicity (capability of causing an immune response) of A/H5N1 (Bird flu) virus vaccine in healthy adults. Up to 400 healthy adults, aged 18 to 64, will participate. Each subject will participate for about 7 months and will be randomly placed in one of several different study groups receiving a different dose of vaccine or placebo. All subjects will receive two injections of their assigned study product, about 28 days apart, in the muscle. Subjects will keep a journal of their temperature and any adverse effects between study visits. A small amount of blood will also be drawn before the first injection, 7 days after each injection, 1 month after the first injection, and 1 and 6 months after the second injection.
The aim of this study is to evaluate the impact of the use of a quick diagnostic test of infection with RSV and influenza virus on the assumption of clinical responsibility of the children consulting at the Paediatric Emergency Unit.
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.
To describe the safety during Days 0 to 21 following injection of the 2005-2006 formulation of the inactivated, split-virion influenza vaccine Fluzone in subjects aged 18-59 years and subjects aged ≥ 60 years. To describe the immune response (antibodies to hemagglutinin) 21 days following injection of the 2005-2006 formulation of the inactivated, split-virion influenza vaccine Fluzone, in subjects aged 18-59 years and subjects aged ≥ 60 years. To submit remaining available sera to the Center for Biologics Evaluation and Research (CBER) for further analysis by the Food and Drug Administration (FDA), Center for Disease Control and Prevention (CDC) and the World Health Organization (WHO) to support selection and recommendation of antigen strains for subsequent influenza vaccines.
To provide serum to the Food and Drug Administration (FDA) for use by FDA, the Centers for Disease Control and Prevention (CDC), and the World Health Organization (WHO) for characterization of circulating influenza strains. Observational Objectives: To describe the safety of the 2005-2006 pediatric formulation of Fluzone vaccine, given in the two-dose schedule in accordance with the Package Insert, in children aged ≥ 6 months to < 36 months. To describe the immunogenicity of the 2005-2006 pediatric formulation of Fluzone vaccine, administered in a two-dose schedule in accordance with the Package Insert, in children aged ≥ 6 months to < 36 months.
The purpose of this research study is to find out if giving the smaller dose of flu vaccine under the skin generates antibodies against flu compared to giving the vaccine the usual way, as a shot in the arm. If using smaller doses in this manner is effective, the current supply of vaccine could be used to make more doses to give to more people. About 217 healthy adults, 18 to 49 years of age, will participate. The study will be conducted at one site in the United States and subjects are expected to participate for about 6 months. Blood samples will be taken to assess the immune system response. Local and systemic safety will be evaluated in the 28 days following vaccination.
The purpose of this study is to determine whether a third dose of vaccines containing A/Vietnam/1203/04 provides more immunity than two doses. Subjects who participate in this study will have participated in DMID protocol 04-063 involving the A/Vietnam/1203/04. In this study, each subject will be asked to receive a third dose of the H5 vaccine at the same level administered in protocol 04-063. Subjects will be asked to record oral temperature and any experienced side effects for 7 days following the vaccine. Study procedures will include up to 3 blood sample collections. Participants will be involved in study related procedures for up to 6 months.
The purpose of this study is to determine whether having received an H5 vaccine in the past primes the immune system to respond rapidly to another dose of H5 vaccine. One hundred seventeen participants in a previous vaccine study (involving the A/Hong/Kong/97 virus) during the fall of 1998 at the University of Rochester will be eligible to enroll in this study. Participation in this study will up to 64 days and will involve donation of small samples of blood 7, 28, and 56 days after vaccination.