Active clinical trials for "Influenza, Human"

This study evaluates the immunogenicity, safety and tolerability of an H5N1 vaccine with a seasonal trivalent influenza vaccine, containing the strains recommended by WHO for the 2007 influenza season in the Southern Hemisphere.

Influenza is an acute respiratory disease caused by influenza viruses. There are three types of the virus including A, B and C. Both type A and type B viruses can cause acute febrile respiratory tract infection, characterized by sudden fever, headache, muscle pain, cough, sore throat, nasal congestion and general malaise. The main transmission of influenza is through those highly contagious aerosol droplets containing influenza virus passed from infected people to susceptible population. Each year in the fall and winter infection of influenza is widespread in various age groups, with high incidence rate. Although influenza is generally a self-limiting disease, but in children, the elderly (especially those above 65 years old and those with chronic heart, lung, kidney, liver, blood or metabolic diseases such as diabetes or other certain diseases) and those with poor immunity function, influenza can easily lead to serious flu complications such as pneumonia, resulting in severe increase of morbidity and mortality. In order to evaluate safety and immunogenicity of a quadrivalent influenza vaccine produced by Jiangsu Jindike Biotechnology Co., Ltd. a phase III clinical trial is planned to conduct in healthy Chinese subjects aged 3 years and older.

This study evaluates the safety of Quadrivalent Influenza Virus Vaccine in Healthy People Aged years 3 to 60.40 Subjects will be equally divided into 2 groups,including 3-17 years old and 18-60 years old.Adult group first receive one dose of Quadrivalent Influenza Virus Vaccine.Then minors group also receive one dose of Quadrivalent Influenza Virus Vaccine after 7 days.

A Phase III, Randomized, Observer-Blind, Controlled, Multicenter Clinical Study to Evaluate the Efficacy, Safety and Immunogenicity of an MF59-Adjuvanted Quadrivalent Influenza Vaccine Compared to Non-influenza Vaccine Comparator in Adults ≥ 65 Years of Age.

This will be a randomised observational phase 1 study in 48 healthy volunteers aged 18-50. The study is assessing safety and immunogenicity of viral vectored vaccines ChAdOx1 NP+M1 and MVA NP+M1 in heterologous prime-boost regimens. A crossover design will allow comparison of the two vaccines. Volunteers will be divided into 4 groups (n=12 in each group). Groups will be recruited simultaneously to control for seasonal changes in influenza. This is because at certain times of year there is likely to be a higher naturally acquired T cell response to influenza than at other times due to circulating influenza virus in the community. The study has been extended to include 2 additional groups (group 5 & 6), each containing 12 healthy adults aged 50 years or above. Group 5 will receive ChAdOx 1 NP+M1 on day 0, and group 6 will receive this with an additional boost of MVA-NP+M1 8 weeks later.

In this study the investigators are trying to understand how immune function declines in the elderly using annual influenza vaccinations as a model system. The longitudinal study began in 2007 and continued through early 2017.

The hypothesis for this trial is that the incidence of a pre-defined composite of common systemic hypersensitivity adverse events for Flublok recipients is non-inferior to that reported for licensed IIV recipients. Another hypothesis is that the safety and reactogenicity of Flublok is clinically acceptable, i.e. consistent with the overall safety profiles previously observed with Flublok and with the licensed comparator.

Evaluate the safety and immunogenicity of four different doses of H7N9 vaccination in adults between the ages of 18 years and 65 years.

The purpose of this study is to assess, in adults 18 years of age and above, the immunogenicity and reactogenicity of the seasonal influenza vaccine, Fluarix/Influsplit Tetra containing the four influenza strains (two A strains and two B strains) for the 2013/2014 season.

The purpose of this study is to evaluate the immunogenicity, reactogenicity and safety of Fluviral™ containing the influenza strains recommended for the 2013-2014 season in adults aged 18 years and older.