Active clinical trials for "Influenza, Human"

Patients treated with chemotherapy or immunosuppressives are at higher risk of influenza infection and mortality and morbidity are higher compared to healthy adults. Vaccination against the influenza virus can prevent these complications. In this study it is investigated whether vaccination during chemotherapy is effective in reaching protective serum antibody concentrations and the relation between time of vaccination (day 4 +/- 1 day versus day 16 +/- 1 day of the chemotherapy cycle).

A phase 3 study to obtain additional safety and immunogenicity data on Solvay's cell-derived seasonal trivalent subunit influenza vaccine in adult and elderly subjects without significant illnesses and to demonstrate consistency of the immunogenicity of the three lots of the same vaccine, comparison of cell-derived vaccine to Solvay's egg-derived vaccine including assessment of non-inferior immunogenicity

This trial will assess the immunogenicity and safety elicited by the adjuvanted GSK Biologicals' influenza investigational vaccine GSK2340274A in healthy Japanese adults aged 20-64 years.

The purpose of this study is to determine the degree of indirect benefits to family members and classmates resulting from administration of influenza vaccine to children.

Objectives: To evaluate the safety and tolerability of a prime-boost study regimen that includes the recombinant DNA vaccine followed by licensed 2008/2009 FluLaval(Registered Trademark) in adults ages 18-50 years and adults ages 51-70 years as compared with control groups that receive the licensed vaccine only. To evaluate whether the study participants in each age group receiving a prime-boost schedule have a greater frequency of H1 or H3 neutralizing antibodies compared with those of the same age group who received only the 2008/2009 trivalent influenza vaccine. To evaluate differences in antibody or T cell responses (quantity, quality, or durability) between the two groups. Eligibility: Participants ages 18 to 70 years of age who are available for clinic follow-up through Week 24 and who have no previously undiagnosed clinically significant chronic diseases. Participants will provide blood samples for further testing to determine eligibility. Females must not be or become pregnant during the study. Volunteers who have been immunized with the current season FDA-approved influenza vaccine (2008-2009), or who are being treated for tuberculosis may not participate. Design: The study lasts for 24 weeks. Week 0: The first day of Week 0 (i.e., Day 0) is defined as the day of enrollment and first injection. Specific eligibility is reviewed. Participants will receive an injection of either the DNA vaccine VRC-FLUDNA047-00-VP (at 4 mg dosage) or a placebo. Week 4: All study participants will receive an injection of the trivalent seasonal influenza vaccine, according to the manufacturer's package insert directions. Participants will be given 7-day diary cards on which to record temperature and symptoms (e.g., muscle aches, headache, chills, nausea) and injection site reactions (e.g., pain, tenderness). Participants may also enter this information via the Internet. Presence of symptoms may require additional visits to the clinic. Participants will return to the clinic 2 weeks after each injection for the following procedures: Blood draws for further tests to determine the immune system's response to the vaccine(s) Clinical evaluations: vital signs and weight, examinations of the lymph nodes, and targeted physical exam on any visit if indicated by interim complaints or laboratory findings.

This study will evaluate the safety and immunogenicity of different combinations of influenza vaccine in healthy young children.

To observe and to describe the safety during Days 0 to 21 following injection of the 2004-2005 formulation of the inactivated, split-virion influenza vaccine Fluzone® in subjects aged 18-59 years and subjects aged ≥ 60 years. To measure and to describe the immune response (antibodies to hemagglutinin) 21 days following injection of the 2004-2005 formulation of the inactivated, split-virion influenza vaccine Fluzone®, in subjects aged 18-59 years and subjects aged ≥ 60 years.

This study will investigate safety and reactogenicity of a monovalent conjugated vaccine against Haemophilus influenzae type b in healthy children

This study will investigate safety and immunogenicity of a monovalent conjugated vaccine against Haemophilus influenzae type b in healthy children aged 2 to 4 months in China.

The purpose of this study is to evaluate the efficacy of GlaxoSmithKline Biologicals' influenza vaccine GSK2186877A in adults 65 year of age and older. The study design is divided in two surveillance phases: one passive phase along the study during the influenza season and one active surveillance phase during the influenza peak season.