View clinical trials related to Influenza, Human.
Filter by:Background: - The influenza A virus can cause infections that lead to fever, cough, muscle aches, diarrhea, and headaches, and can even be fatal in some people. Seasonal influenza kills an estimated 36,000 people in the United States each year. In addition, more than 200,000 people are hospitalized for flu-related complications. Influenza A has a substantial health effect on every age group. - Currently, treatments are available for influenza A, but there is concern that the rate of complications or even death from this infection is still high despite treatment, and that over time this virus may become resistant to these treatments. Researchers are interested in developing a possible new treatment that uses antibodies against influenza A virus. Objectives: - To collect plasma (the liquid component of blood containing antibodies) from people who have high levels of antibodies against the influenza A virus because they either have been previously infected with the virus or have been vaccinated against the infection. Eligibility: - Healthy male volunteers between 18 and 60 years of age who are eligible to donate blood. - Individuals must have previously either recovered from influenza infection or have been vaccinated against the infection, and may be subject to other restrictions on participating in National Institutes of Health research studies. Design: - Volunteers will undergo apheresis, an outpatient procedure in which researchers will collect plasma containing antibodies against the influenza virus by drawing blood into a special machine that separates blood cells from the liquid portion under sterile conditions and then returns the blood cells to the donor. - Volunteers will be screened with blood tests to ensure that they are eligible to participate and donate blood. - Volunteers are asked to undergo at least 3 sessions of apheresis; if willing, they can volunteer to participate in up to 20 sessions. - After plasma is collected, it will be tested to ensure that it can be used to safely develop treatments for patients who have influenza A infection.
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.
UMN-0501 is a purified recombinant influenza HA vaccine (A H5N1/Vietnam/1203/2004). The purpose of the present study is to evaluate immunogenicity, safety and optimal dose among three different doses of UMN-0501 following two same-dose vaccinations of UMN-0501 per patient with a 3 week interval between vaccination in healthy young adults. Immunogenicity will be confirmed by both microneutralization (MN) antibody and hemagglutination inhibition (HAI) titer levels in the serums of subjects after receiving different doses of UMN-0501. There will be three dose groups with 30 subjects per group for a total of 90 healthy young adults aged 20-40 years enrolled in this study.
This is a multicenter, randomised, four arms placebo controlled study to evaluate the safety and tolerability of 10 mg inhaled zanamivir once a day and 75 mg oseltamivir capsule orally once a day relative to placebo over 16 weeks (112 days). Enrolled subjects will be randomly assigned to 2:1:2:1 ratio (active oseltamivir: placebo: active zanamivir: placebo) on one of the four study treatment groups. It is hypothesized that oseltamivir and zanamivir will protect participants from becoming infected with influenza.
The objective of this study is to evaluate the immunogenicity and safety of GSK Biologicals' investigational vaccine GSK1557482A.
The purpose of this study is to characterize the safety, immunogenicity, and relative efficacy of the H1N1 (swine) flu vaccines GSK2340273A and GSK2340274A in adults 18 years of age or older.
The primary purpose of the study is to assess the equivalence of the immune response elicited by two GSK Biologicals' adjuvanted influenza investigational vaccines (GSK2340272A and GSK2340274A) in adults aged 18 to 60 years. The second purpose of the study is to evaluate the safety and reactogenicity of these two vaccines.
This Phase 2, open label, randomized study will investigate the virologic benefit, clinical efficacy, safety, and tolerability of amantadine and ribavirin with oseltamivir (TCAD) versus oseltamivir monotherapy for the treatment of all strains of influenza A in immunocompromised adult and pediatric subjects.
The purpose of this study is to assess the safety and the body's immune response (body's defense against disease) to an experimental H1N1 influenza vaccine in people with asthma. The study will enroll 350, and possibly up to 400 healthy adults ages 12 and older with mild, moderate, or severe asthma. Participants will be randomly assigned to 1 of 2 possible vaccine groups: group 1 will receive 15 mcg of H1N1 vaccine; group 2 will receive 30 mcg of H1N1 vaccine given as two 15 mcg injections. Both groups will receive vaccine injections on days 0 and 21. Study procedures include: medical history, physical exam, spirometry, maintaining a memory aid and, and blood sample collection. Participants will be involved in study related procedures for approximately 7 months.
The purpose of this study is to characterize the safety and immune response of the H1N1 (swine) flu vaccines GSK2340274A and GSK2340273A in children 6 months to less than 9 years of age. This Protocol Posting has been updated following the Protocol amendment 1 & 2, September and October 2009. The sections impacted are study design, objectives and analysis methods.