Active clinical trials for "Influenza, Human"

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 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 FDA to support formulation recommendations for subsequent influenza vaccines.

The aim of the trial is to evaluate immunogenicity and safety of the quadrivalent influenza vaccine (QIV) and the trivalent influenza vaccine (TIV) (split-virion inactivated) Northern Hemisphere (NH) 2015 2016 seasonal formulations, in subjects aged 18 to 60 years in the Republic of Korea for the registration of the QIV by the Ministry of Food and Drug Safety. Objectives: To evaluate the immunogenicity of QIV and TIV (split-virion, inactivated) NH 2015-2016 seasonal formulations. The compliance, in terms of immunogenicity, of the QIV NH 2015-2016 formulation, with the requirements of the Committee for Medicinal Products for Human Use (CHMP) Note for Guidance (NfG) CPMP/BWP/214/96 will be assessed. To evaluate the safety profile of QIV and TIV (split-virion, inactivated) NH 2015-2016 seasonal formulations

This phase I-like, open-label, monocenter, descriptive, single-arm clinical safety study will investigate the Shenzhen quadrivalent influenza vaccine (Shz QIV) in 100 participants aged 6 months and older in China. Participants aged 9 years or more will receive a single dose of Shz QIV, and participants aged 6 months to 8 years will receive two doses of Shz QIV administered 28 days apart.

The study will be an open-label phase 2 clinical trial of a single dose of an inactivated H7N9 influenza vaccine (non-adjuvanted). The subjects of the study will have previously participated in DMID trial 07-0023, evaluating inactivated Influenza A/H7N7 vaccine. In the previous study healthy adults 18 to 40 years old were randomized to receive two doses, 28 days apart, of placebo or 7.5, 15, 45, or 90 ug of the influenza vaccine by IM injection in a 1:1 ratio (N=25/vaccine group and 25 in placebo group). The primary objectives are to 1) assess the safety and reactogenicity of a single dose A/H7N9 vaccine in individuals who previously received two IM doses of an A/H7N7 vaccine or are A/H7 vaccine-naïve and 2) To assess the serum hemagglutination inhibition (HAI) antibody responses against A/H7N9 approximately 28 days following receipt of a single dose of A/H7N9 vaccine in individuals who previously received two IM doses of A/H7N7 vaccine or are A/H7 vaccine-naïve.

This is a Phase I randomized, double-blind, controlled trial in 275 males and non-pregnant females, 19 to 64 years old, inclusive, 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/H5N8 virus vaccine manufactured by bioCSL administered at different dosages (7.5 or 15 mcg of HA/0.5 mL dose) given with or without AS03 or MF59 adjuvants manufactured by GlaxoSmithKline Biologicals and Novartis Vaccines and Diagnostics, respectively.

"Multimeric-001" (M-001) contains conserved, common linear influenza epitopes that activate both cellular and humoral arms of the immune system against a wide variety of influenza A and B strains. Apart from its direct action, M-001 is an attractive candidate for priming immune responses to pandemic influenza vaccine in the adult population. The current clinical study was designed to assess M-001's standalone and priming action in subjects aged 18-60 years old. This is a Phase IIb study comprising 222 participants. Eligible subjects were randomized to receive two sequential intramuscular injection of 0.5mg or 1.0mg M-001 (treatment), or two placebo (saline) injection, before receiving the sub optimal dose of H5N1 pandemic vaccine.

Children are particularly vulnerable to respiratory virus infections, especially influenza. Vitamin A & D deficiencies are associated with vulnerability to infectious diseases of the respiratory tract. The central hypothesis of this protocol is that vitamin supplements will enhance antibody responses toward the flu vaccine in children. Children, 2-8 years old, will be randomized to receive influenza virus vaccine with a vitamin A+D supplement or influenza virus vaccine with placebo. Children will be tested for vitamin levels and immune responses before and after influenza virus vaccinations to determine if vitamin supplementation improves the influenza virus vaccine-induced immune response. PRIMARY OBJECTIVE: To assess the vaccine-induced and total antibody (including IgG and IgA) response after influenza virus vaccine administration and IgA/IgG plus IgA/IgM ratios at 28 and 56 days in sera SECONDARY OBJECTIVE: To assess the neutralizing response toward influenza virus vaccine in the sera.

Several studies have shown poor immune response to conventional influenza vaccines in HIV-infected individuals. This study was conducted expecting the more potent immunogenicity of intradermal vaccine compared with conventional intramuscular vaccine in HIV-infected adults.

The purpose of this study is to investigate the safety and immunogenicity of a recombinant hemagglutinin (rHA) influenza vaccine derived from A/Anhui/1/2013 (H7N9) administered at 3 dose levels in adjuvanted (SE) rHA formulations and 1 dose levels in an unadjuvanted rHA formulation.

The aim of this study is to characterize the immune profile of frail and healthy aged individuals and investigate their immune responsiveness including the response to influenza vaccine over an 18-month period. The project will include a longitudinal study to define immune signatures and multi-parameter profiles associated with frailty and may lead to the identification of predictive markers of evolution to frailty and Immunosenescence in the elderly.