Active clinical trials for "Influenza, Human"

The purpose of this study is to evaluate the safety and immunogenicity of different formulations of GSK Biologicals' H7N9 influenza vaccine in subjects 18 to 64 years of age.

The purpose of this study is to confirm the safety until Day 29 after injection of a single dose of quadrivalent vaccine ASP7374 in adult subjects aged 20 or older

The administration of adjuvanted Trivalent Influenza Vaccine (aTIV) has come to result in a more immunogenic and effective response compared with conventional influenza vaccines in elderly and adults. The aim of this study is to evaluate safety and immunogenicity of Novartis aTIV in children 6 to <72 months of age, Mexican population, in comparison to Fluzone, a non-adjuvanted trivalent influenza vaccine (TIV).

The main purpose of this trial is to describe the product profile in terms of immunogenicity and safety following administration of trivalent influenza vaccine (split-virion, inactivated) produced at Shenzhen (SP Shz TIV). Primary objective: To describe in each group the immune response induced by a single dose (subjects aged ≥ 3 years) or by two doses (subjects aged 6 to 35 months) of SP Shz-TIV. Secondary objective: To describe in each group the safety profile of the vaccine after a single dose (subjects aged ≥ 3 years) or after each and any dose administered (subjects aged 6-35 months).

This is a Phase II randomized, partially-blinded, controlled trial in 360 (up to 600) males and females, 65 years of age and older, who are in good health and meet all eligibility criteria. This clinical trial is designed to assess the safety, reactogenicity, and immunogenicity of a monovalent inactivated influenza A/H7N9 virus vaccine manufactured by Sanofi Pasteur administered intramuscularly at different intervals and dosages (3.75, 7.5, or 15 mcg of HA/0.5 mL dose) given with MF59 adjuvant manufactured by Novartis Vaccines and Diagnostics. Subjects will receive three doses of the vaccine. Safety, reactogenicity, and immunogenicity data will be collected at standard time points with safety follow-up to continue through one year post dose 2. Study Duration is approximately 30 months and Subject Participation is approximately 18 months. The primary objectives are to (1) assess the safety and reactogenicity of different dosages (3.75, 7.5, and 15 mcg of HA/0.5 mL dose) of an MF59-adjuv

This is a study to assess the safety of a bioCSL split virion, inactivated Trivalent Influenza Virus vaccine containing the 2014/2015 Northern Hemisphere strains of vaccine in children aged 5 years to less than 9 years. Comparison will be made to a licensed Quadrivalent Influenza Virus vaccine that complies with the FDA recommendations for the 2014/2015 influenza season in the US.

This study aims to conduct a double-blind, placebo-controlled study to assess the effect of prophylactic antipyretics on the immune responses and rates of fever after inactivated influenza vaccine (IIV) in children 6 through 47 months of age. In this study, 160 healthy children, 6 through 47 months of age, including some children at risk of febrile seizure, will be randomized to one of three different treatment arms. Children will receive either blinded therapy with prophylactic acetaminophen or placebo immediately following and every 4 to 6 hours in the 24 hours after receipt of a dose of IIV or open-label ibuprofen every 6 to 8 hours in the 24 hours after receipt of a dose of IIV. Children will be followed for the occurrence of fever, fussiness, changes in appetite and sleep patterns, and use of medical services on the day of and for two days following vaccination. Antibody to influenza antigens contained in the respective 2014-2015 and 2015-2016 vaccines as measured by hemagglutination inhibition (HAI) antibody will be assessed at baseline and four weeks following vaccination. The proportions of children experiencing fever, having solicited side effects, using medical services, demonstrating a serologic response corresponding to seroprotection and seroconversion to each of the IIV antigens will be determined for groups of children in each of the three treatment arms. Likewise geometric mean HAI titers (GMTs) and corresponding 95% confidence intervals for each IIV antigen will be calculated for the three treatment arms. The investigators hope to learn whether or not prophylactic antipyretics affect the immune response and fever rates following IIV.

A phase I prospective, randomized study in healthy adult subjects at a single center. Adult subjects age 18 to 47 years and meeting all enrollment criteria will choose to participate as subjects who receive inactivated vaccine followed by a live vaccine boost at 4 weeks (Group 1), 12 weeks (Group 2), or 24 weeks (Group 3), or to be in an observational group (Group 4) which will not be scheduled for a booster dose but may serve as a roll-over group for subjects who withdraw prior to the second vaccination but agree to remain in follow-up. A fifth group will receive two intramuscular doses of adjuvanted H7N9 pIIV separated by four weeks. The primary objectives of this study are to (1) assess the safety of H7N9 pLAIV administered to individuals who have previously received MF59-adjuvanted or unadjuvanted H7N9 pIIV, (2) evaluate the ability of a single dose of unadjuvanted H7N9 pIIV to prime for enhanced immunogenicity (booster response) to subsequent administration of antigenically-matched H7N9 pLAIV vaccine, and to (3) evaluate the ability of a single dose of MF59-adjuvanted H7N9 pIIV to prime for enhanced immunogenicity (booster response) to subsequent administration of antigenically-matched H7N9 pLAIV vaccine.

This is a first-in-human study of safety and immunogenicity of an A/H5N1 inactivated whole cell vaccine when given in two injections in two doses (low and high) compared to a placebo in 76 healthy adult subjects in Vietnam. Vaccine and placebo are manufactured by the IVAC in Vietnam.

This prospective annual release study is designed to evaluate the safety of 1 new influenza virus vaccine strain to be included in FluMist Quadrivalent for the 2016-2017 influenza season