Active clinical trials for "Influenza, Human"

The purpose of this study is to evaluate the safety, tolerance, and immunogenicity of MAS-1-Adjuvanted seasonal inactivated influenza vaccine (IIV) (MER4101) with hemagglutinin dose escalation compared to non-adjuvanted comparator IIV standard dose (SD) in healthy adults and high dose (HD) IIV in ambulatory elderly subjects. Hypothesis: Reduced HA dose IIV formulated in MAS-1 adjuvant (MER4101) has been shown under Phase 1A to be safe, tolerable and demonstrated a more robust and durable immune response to IIV over 6 months post-vaccination in healthy young adults 18 - 49 years of age compared to SD IIV. Under phase 1B, the 9 µg/HA dose of IIV in 0.3 mL MAS-1 was safe and well tolerated and immunogenically comparable to or better than 60 µg/HA HD IIV control over 3 to 6 months post-vaccination than HD IIV control. It is anticipated that the increased total dose of 15 µg HA antigen administered concurrently to opposite arms in 2 doses of 7.5 µg/HA IIV in 0.25 mL MAS-1 adjuvant emulsion will be safe, well tolerated, and more immunogenic than 9 µg/HA IIV in MAS-1, and will be more immunogenic when compared to HD IIV control in adults who are 65 years of age and older with the potential to provide better protection throughout the influenza season.

One dose of escalating strengths of an investigational influenza vaccine, VAX2012Q (Quadrivalent Recombinant Hemagglutinin Seasonal Influenza Vaccine), will be evaluated for safety and immunogenicity in healthy adults 65 to 75 years of age in this placebo-controlled study.

The purpose of this study is to determine the safety and tolerability of the anti-TSG101 human monoclonal antibody (FGI-101-1A6)when administered intravenously to healthy volunteers.

The purpose of this study is to determine whether nonpharmaceutical interventions (i.e., handwashing and masks) reduce secondary transmission of influenza in households.

The study is designed to investigate whether paracetamol from a hot remedy reaches the plasma faster than standard paracetamol tablets. The study will also assess the gastrointestinal transit of two oral cold and influenza ('flu') formulations using gamma scintigraphy. It is postulated that paracetamol in solution, such as from cold and 'flu' hot remedies, provides a greater early exposure compared to standard paracetamol tablets. In addition, the pharmacokinetic (PK) profile of paracetamol in the two formulations will be investigated.

This study will assess the efficacy of a new intradermal formulation of the trivalent inactivated influenza vaccine compared to the standard intramuscular vaccine in HIV-infected men who have sex with men in Bangkok, Thailand. Relative efficacy of the two different formulations of influenza vaccine will be assessed by comparing immunologic responses to vaccine between the two study arms.

The purpose of this study is to measure the incidence of A/H1N1 Influenza infection in the mother and her child and to identify the determinants in pregnant women during pandemic period in three public maternities in Paris, France.

The study will be conducted with nasopharyngeal swab specimens collected prospectively from individuals suspected of having an acute respiratory tract infection caused by an Influenza virus. A series of standard viral culture tests validated for routine use in the clinical laboratory, as well as the CDC swine H1N1 test will be used to establish a collection of well characterized specimens. For each specimen four (4) aliquots will be prepared. One aliquot will be tested in real-time using the requisite viral culture reference methods, one aliquot will be used for H1N1 reference testing, one aliquot will be used to extract nucleic acid in real-time, and one aliquot of the UTM will be archived for the purpose of sequencing to confirm Influenza-positive specimens. The extracted nucleic acid and any remaining specimen will be stored at -70°C for later testing by the artus Influenza RG PCR test, or other investigational method(s).

In response to the European regulatory authorities, GSK is conducting a post-marketing observational study to assess the efficacy of Relenza when used as prophylaxis against influenza. SPECIFIC AIMS Determine the frequency of patients who received Relenza from October 2006 through April 2009, and among them the number who have no concurrent diagnosis of influenza, i.e., those receiving Relenza for prophylaxis, and among these the number who have a family member with a medical visit for influenza within three days preceding the above indentified patient's dispensing of Relenza. This is to determine the feasibility of conducting detailed analysis. If analysis is feasible then tabulate the frequency of influenza-like-illness and respiratory outcomes in users of prophylactic Relenza and their family members and in family members of persons using Relenza for the treatment of influenza (i.e., index cases). If analysis is feasible then estimate the direct effect of prophylactic Relenza on the occurrence of influenza-like-illness and respiratory outcomes, the secondary effect of Relenza treatment of influenza on susceptible family members, and the total effect of Relenza (treatment plus prophylaxis). METHODS Overview of Study Design This is an analysis of the 30-day risk of influenza-like illness and respiratory outcomes in persons for whom some household members (index cases) have had a medical visit associated with a diagnosis of influenza. The exposed individuals to the index case will be categorized into one of four cohorts according to whether the exposed person received prophylactic Relenza or no antiviral treatment and by whether the index family member with a diagnosis of influenza received antiviral treatment. Estimates of the direct effect of Relenza prophylaxis, the indirect effectof preventing disease in susceptible family members, and the total effect of disease reduction when both index cases and susceptible family members are treated will be obtained from different comparisons between cohorts, as outlined below. The research will cover the first three influenza seasons during which Relenza has been indicated for prophylactic use in the United States. These will be from October through April of 2006-2009.

The focus of this study is to assess the safety of GSK's H1N1 vaccine in real life conditions as soon as the vaccine is used, in a mass vaccination programme, and with a system for rapid generation, communication and evaluation of safety data. This study is a commitment to the European Medicines Agency (EMEA), as part of GlaxoSmithKline Biologicals' (GSK Biologicals') risk management plan for pandemic influenza vaccination.