View clinical trials related to Influenza.
Filter by:The study will evaluate the safety and immunogenicity of the 2015-2016 formulation of Fluzone Quadrivalent vaccine, administered in a 1- or 2-dose schedule, in accordance with the Advisory Committee on Immunization Practices (ACIP) recommendations, in children 6 months to < 9 years of age. Objective: - To describe the safety of the 2015-2016 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. Observational objectives: - To describe the immunogenicity of the 2015-2016 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 available sera from each subject to CBER for further analysis by the WHO, the CDC, and the FDA to support formulation recommendations for subsequent influenza vaccines.
This is a multi-center, randomized, double-blind, active comparator controlled study in which up to 450 healthy adults age 18-64 years will be administered either one of two dose levels of VAX2012Q or a licensed quadrivalent influenza vaccine. The subjects will be randomized at a 1:1:1 ratio.
One dose of escalating strengths of an investigational influenza vaccine, VAX2012Q (Quadrivalent Recombinant Hemagglutinin Seasonal Influenza Vaccine), will be evaluated for safety and immunogenicity in healthy adults 65 to 75 years of age in this placebo-controlled study.
One dose of escalating strengths of an investigational influenza vaccine VAX2012Q (Quadrivalent Recombinant Hemagglutinin Seasonal Influenza Vaccine) will be evaluated for tolerability and immunogenicity in healthy adults 18-40 years of age.
This study will investigate markers, mechanisms and define general predictors for immunological health. This goal is analogous to what has been achieved in cardiovascular medicine where the levels of different forms of cholesterol have provided useful benchmarks for cardiovascular health. In this context, immunization with FDA approved flu vaccines represents a safe and accessible opportunity to gauge the immune response in a particular individual as a function of age and genetics and then to try to find predictive biomarkers.
This study will examine the feasibility of having parents and caregivers administer FluMist live intranasal vaccine to their children at home outside the traditional medical environment and without the involvement of medical personnel. The study will recruit patients and families that are already eligible to receive the FluMist vaccine. After consent is obtained and vaccine is given to the family, they will go home to administer vaccine to other members within 24 hours. Telephone follow up within 48 hours will confirm that vaccine was given successfully and within 9-12 days to assess patient preferences for giving vaccine at home and if there were any adverse events.
The purpose of this study is to prospectively evaluate relative effectiveness of high dose influenza vaccine in preventing influenza mortality, hospitalization, and functional decline in a nursing home population in the U.S., compared to the standard dose trivalent seasonal influenza vaccine.
The safety of parenterally administrated investigational vaccine (commercial influenza vaccine formulated with adjuvant Matrix M) in healthy adults (age 18-50) and healthy elderly (age 65-75), will be investigated in the study. Moreover, the study aims to study parameters associated with improved protection against clinical disease in elderly. Such parameters include HI-titres, a balanced Th1/Th2 response as well as a functional cellular immune response. Vaccination will start in 22 healthy adults receiving the investigational vaccine. Vaccination of elderly will be initiated only after demonstration of safety in adults. 88 healthy elderly volunteers will be vaccinated, 44 will receive the seasonal influenza vaccine alone and 44 will receive the investigational vaccine. Vaccines will be administrated intramuscularly in the upper arm. One dose will be administered to each volunteer included in the study. Blood samples for basic immunological assessments of cellular and humoral immunity will be taken at day 0, 7, 28, 90 and 150. The investigational vaccine is equal to one standard human dose of a commercial seasonal influenza vaccine to which 50 µg of adjuvant Matrix M has been added.
We propose to follow a cohort of pregnant and post-partum Canadian women through the fall and winter of 2009/2010 and the anticipated second and third waves of the current pandemic in order to better understand the incidence, complications and risk factors for severe disease due to H1N1 influenza in pregnant women, and to contribute data on the safety and effectiveness of antivirals and vaccines in this population. The primary hypotheses to be tested are: (i) pandemic influenza infection in the second and third trimester of pregnancy is associated with an increase in adverse fetal outcomes (fetal loss, stillbirth, neonatal mortality, significant neonatal morbidity, prematurity) (ii) close contact with young children (<2 yrs) at home or work is the most important risk factor for influenza in pregnant women (iii) higher scores on a scale of community infection prevention (a combination of self-reported hand hygiene adherence, avoidance of ill persons and avoidance of crowds) are protective against influenza (iv) receipt of seasonal influenza vaccine from 2007 to 2009 will increase the risk of illness due to influenza A(H1N1)v in the second and third waves of the pandemic. (v) pandemic influenza vaccine is effective in preventing symptomatic influenza in pregnant women. (vi) vaccination of pregnant women against a particular strain of influenza protects their infants against influenza infection in the first six months of life.
A total of 88 children between 2 and 9 years of age will be randomized to receive a two dose schedule of either licensed live attenuated trivalent seasonal influenza vaccine (LAIV) or licensed inactivated seasonal influenza vaccine (TIV)or TIV followed by LAIV or LAIV followed by TIV separated by 28 days. Children with a laboratory documented history of prior H1N1 infection will be excluded.