View clinical trials related to Influenza.
Filter by:The purpose of the study is to verify the safety and immunogenicity of a trivalent seasonal influenza vaccine with strain composition according to World Health Organization (WHO)/European Union (EU) recommendation for the 2009/2010 season.
This study is designed to characterize the safety and immunogenicity of a' pandemic influenza (H1N1) candidate vaccine GSK2340274A in adults 19 to 40 years who have never received influenza vaccination.
This is a randomized clinical trial designed to evaluate oral nitazoxanide compared to a placebo in the treatment of acute uncomplicated influenza in adults. We hypothesize that treatment with nitazoxanide will reduce the duration of symptoms in patients with confirmed influenza infection. Secondarily, we hypothesize that treatment with nitazoxanide will reduce the complications of influenza, severity of symptoms, time lost from work, time to return to normal daily activities, and viral shedding.
Following the sudden and unexpected emergence of influenza A(H1N1)pdm09 (2009 H1N1) virus, this observational study was initiated to estimate rates of morbidity and mortality and to examine predictors of severity among participants with 2009 H1N1 infection. In 2011, as surveillance indicated that 2009 H1N1 virus was co-circulating with other seasonal influenza A and B viruses worldwide, the protocol was expanded to include other influenza A subtypes and influenza B viruses. The current version of the protocol (released in August 2013) further broadens the scope of this observational study. With the recognition that novel respiratory viruses other than novel influenza A viruses, e.g., Middle East Respiratory Syndrome Coronavirus (MERS-CoV), could become prevalent and of major public health importance, the objectives of this protocol have been expanded.
The 2009 flu pandemic is a global outbreak of a new strain of influenza A virus subtype H1N1, commonly known as swine flu, that was first identified in April 2009. Large-scale immunization is an essential approach of controlling the pandemic.Vaccines are now becoming available for protection against pandemic influenza A(H1N1) 2009 infection in some countries.In response to the pandemic, novel vaccines against the virus strain A/California/07/2009(H1N1) have been developed and recently were approved for vaccination among specific populations in China. However, the safety and effectiveness of the vaccines is of prime concern to the authorities and the public.This report details the findings of a observational clinical trial of the safety and immunogenicity of a influenza A (H1N1)2009 monovalent vaccine. The virus of Swine Flu H1N1 that outbroke in 2009 is sensitive to neuraminidase inhibitors (Oseltamivir, zanamivir and peramivir) but have drug resistant to adamantanamine derivatives (amantadine and Flumadine), therefore neuraminidase inhibitors are recommended for antiviral therapy against Swine Flu H1N1, effect of which is evidence by the data that such drugs do modify the symptoms and decrease the death rate of H1N1 in America and Mexico. However, clinically, the investigators have encountered that this virus can infect resistant strains of Oseltamivir, which urges for a more effective treatment plan. In view of above situations, seeking for an effective measures against H1N1 flu should be a top priority and will benefit human life and economy globally. This Topic will take the classic strategy of passive immunity to perform basic and clinical researches on applying blood fix to treat critical H1N1 patients and collect blood of healthy persons who are inoculated with specific H1N1 vaccines to cure critical H1N1 patients.
This open-label study will assess the pharmacokinetics and safety of oseltamivir [Tamiflu] in 3 cohorts of infants, aged 0-30 days, 31-90 days and 91-<365 days with influenza infection. Patients will receive 10 doses of intravenous oseltamivir [Tamiflu] therapy over 5 or 6 days. Optional oral therapy with oseltamivir [Tamiflu] may be considered following the intravenous dose associated with pharmacokinetic blood sampling. Evidence of continued virus shedding at day 6 can allow for up to 5 additional days (10 doses) of oral or intravenous administration. Anticipated time on study drug is 5-11 days. Target sample size is <50 patients.
The incidence of severe morbidity and mortality following an influenza infection during the annual influenza epidemics is highest among the elderly population and 90% of influenzaassociated mortality occurs in this group. Vaccination is considered the best preventive intervention available but offers only partial protection. The protective effect decreases with advancing age and existing co-morbidity. Therefore, in spite of high compliance with vaccination, the risk of influenza-related complications among nursing-home residents, is particularly high, and consequently also the associated disease and economic burden. There is debate on the potential health benefit of the antiviral activity of oseltamivir as an effective supplementary intervention to prevent or contain influenza outbreaks in nursing homes. Although effectiveness of post-exposure prophylaxis (PEP) with oseltamivir on preventing transmission has been demonstrated in trials among healthy (mainly unvaccinated) adults and children, effectiveness has not yet been assessed among vulnerable vaccinated highrisk groups, such as the elderly population in nursing homes. If proven (cost)effective, oseltamivir could have considerable benefits in this setting, although constraints relating to implementation need to be addressed as well.
The purpose of this study is to assess the safety and immunogenicity of one dose of A/H1N1 non-adjuvanted pandemic vaccine to support registration of the vaccine in India. Primary Objective: - To describe the safety profile (injection site reactions and systemic events) of the vaccine within 21 days following vaccination, and serious adverse events throughout the study in all subjects Secondary Objectives: - To describe the immune response to the vaccine 21 days after vaccination by hemagglutination inhibition (HAI) testing in all subjects - To describe the antibody persistence 6 months after vaccination by HAI testing in all subjects.
Adult patients hospitalized with influenza have higher viral loads and more severe illnesses. Thus more aggressive treatment approaches (e.g. higher dose oseltamivir) have been suggested to treat patients suffering from severe influenza infection. The investigators plan to investigate the impact of higher-dose oseltamivir (150 mg b.d.) treatment on viral clearance and clinical recovery in adult patients hospitalized for severe influenza. Such information may lead to optimization of the management strategy used for these patients.
The purpose of this study is to characterize the safety and efficacy of GSK Biologicals' H1N1 flu candidate vaccines GSK2340274A and GSK2340273A in children 6 months to less than 10 years of age.