Active clinical trials for "Orthomyxoviridae Infections"

Compared to young adults, the elderly mount a lower antibody response to vaccination. Thus, improvement of the immune response to influenza vaccination in this age group, which is at higher risk for influenza-related morbidity and mortality, represents an important unmet need. Primary Objectives: Immunogenicity: To demonstrate lot consistency of the Fluzone High Dose (Fluzone HD) manufacturing process through evaluation of the immune responses elicited by three different lots. To demonstrate the superiority of Fluzone HD vaccine compared to standard-dose Fluzone® vaccine. Secondary Objectives: Immunogenicity: To describe the seroprotection of Fluzone HD compared to that of standard dose Fluzone® vaccine. Safety: To describe the safety profile of Fluzone HD, in terms of solicited -, unsolicited adverse and serious adverse events post-vaccination. To describe clinical information on some additional defined criteria during the six months following vaccination.

Since October 2009, H1N1 influenza vaccine has developed and approved of immunization in population in China. However, there was little epidemiological evidence of safety when vaccinated in healthy pregnant women. The main objective of this study is to assess the safety of split-virion inactivated H1N1 vaccine without adjuvant when administered in healthy pregnant women. It is a stratified and controlled clinical trial in healthy pregnant women. And participants were included up to 226 healthy pregnant women aged 18 -35 years old who have no history of novel influenza H1N1 infection or novel influenza H1N1 vaccination. The pregnancy week ranged from 5 weeks to 32 weeks. Subjects were divided into 2 groups: vaccinated group（122） and unvaccinated group（104）. Subjects in the vaccinated group were administered one dose of 15μg H1N1 vaccine. Subjects in the unvaccinated group received no vaccine as controls. Safety will be measured by assessment of pregnancy outcomes. And observation time for pregnancy outcomes was lasting for 28 days postpartum since vaccinated; and protective effect was observed for six months.

Primary Objective: To provide the Center for Biologics Evaluation and Research (CBER) with sera collected from healthy children receiving the 2008-2009 formulation of the inactivated, split-virion influenza vaccine Fluzone® for further study. Observational Objectives: To describe the safety of the 2008-2009 pediatric formulation of Fluzone® vaccine, administered in a one- or two-dose schedule in accordance with Advisory Committee on Immunization Practices (ACIP) recommendations, in children ≥ 6 months to < 5 years of age. To describe the immunogenicity of the 2008-2009 pediatric formulation of Fluzone® vaccine, administered in a one- or two-dose schedule in accordance with ACIP recommendations, in children ≥ 6 months to < 5 years of age.

The trial is a Phase II, open-label trial in healthy subjects aged 18 to 60 years to support the immunogenicity data from previous clinical studies. Objectives: To describe the immune response 21 days after each vaccination. To describe the safety profiles following each vaccination.

The purpose of this study is to determine whether FVH1, a DNA-based influenza vaccine, will be safe and generally well tolerated in healthy elderly adult volunteers and will result in greater immunogenicity when used to prime the immune response to a dose of a trivalent inactivated seasonal vaccine.

The purpose of this study is to test different adjuvanted vaccine formulations as a two-dose schedule in immunologically naïve adults against one vaccine formulation without adjuvant in terms of tolerance and immunogenicity Primary Objective: To describe the safety profile and immunogenicity following each injection.

Based on the results from a previous formulation/dosage ranging trial, this phase II multicenter, open trial was designed to determine the safety and immunogenicity of two vaccine formulation/dosages with and without adjuvant 21 days after each vaccination in adults (18 to 60 years and in the elderly (> 60 years) as required by the European Medicines Agency (EMEA) guideline. The antibody persistence until the booster vaccination at 6 or 12 months will also be evaluated.

This study is related to a previous study, Clinicaltrials.gov ID: NCT02924467. There are some modifications in relation to the intervention arms as well as the use of a different cohort, thereby justifying the second submission to Clinicaltrials.gov. This trial is taking place in New York State, through partnership with the New York State Health Department (excluding New York City), and Colorado. Each state will have it's own Clinicaltrial.gov submission -- this was decided as some of the intervention components are different enough that separate registrations were warranted. Despite U.S. guidelines for influenza vaccination of all children starting at 6 months, only about half of children are vaccinated annually leading to substantial influenza disease in children and spread of disease to adults. A major barrier is that families are not reminded about the need for their children to receive influenza vaccination. The investigators will evaluate the impact of patient reminder/recall (R/R) performed by state immunization information systems to improve influenza vaccination rates by using 4 clinical trials (2 per state) in two different states. The investigators will assess effectiveness and cost-effectiveness of 1) autodialer R/R 2) text messages R/R 3) mailed postcard R/R as compared to 4) standard of care control (no R/R).

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.

Rationale and Background: Since 2013, Butantan Institute has been performing passive pharmacovigilance activities related to its triavalent, fragmented and inactivated vaccine (IB TIV). Objetive: To conduct an active surveillance study focusing on the elderly and health care professionals as part of Butantan pharmacovigilance plan, while passive surveillance activities will continue. The pharmacovigilance plan, via active surveillance, is being implemented in response to WHO requirements for pre-qualification of IB TIV.