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Influenza, Human clinical trials

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NCT ID: NCT01842997 Completed - Influenza Clinical Trials

Safety of H1N1 Influenza Vaccination in Pregnant Women

Start date: October 2009
Phase: Phase 4
Study type: Interventional

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.

NCT ID: NCT01841918 Completed - Clinical trials for Influenza Due to Influenza A Virus Subtype H5N2

Safety and Immunogenicity of Live Attenuated Influenza H5N2

Start date: January 2013
Phase: Phase 2
Study type: Interventional

The purpose of this study is to evaluate immune response and safety of live attenuated influenza H5 vaccine candidate strain A/17/turkey/Turkey/05/133 (H5N2) manufactured by GPO, Thailand in healthy Thais.

NCT ID: NCT01839760 Completed - Influenza Clinical Trials

Evaluation of Viral Shedding Patterns and Clinical Outcomes of Influenza Patients

Start date: December 2012
Phase: N/A
Study type: Observational

The objective of the study is virological assessment (e.g., proportion of prolonged viral shedding, median days to viral clearance, and viral load) in laboratory-confirmed adult influenza patients admitted to the general ward and/or to the ICU and to assess the correlation with the clinical manifestations and prognosis.

NCT ID: NCT01825200 Completed - Influenza Clinical Trials

Comparison of the Safety of Flublok® Versus Licensed IIV in Healthy, Medically Stable Adults ≥ 50 Years of Age

Start date: March 2013
Phase: Phase 3
Study type: Interventional

The hypothesis for this trial is that the incidence of a pre-defined composite of common systemic hypersensitivity adverse events for Flublok recipients is non-inferior to that reported for licensed IIV recipients. Another hypothesis is that the safety and reactogenicity of Flublok is clinically acceptable, i.e. consistent with the overall safety profiles previously observed with Flublok and with the licensed comparator.

NCT ID: NCT01819155 Completed - Influenza Clinical Trials

Immunogenicity and Safety Trial of Adjuvanted and Non-adjuvanted Trivalent Influenza Vaccine in Tropical Africa

Start date: April 2013
Phase: Phase 2
Study type: Interventional

This study will provide the Senegal Ministry of Health with data on the safety and immunogenicity of adjuvanted trivalent inactivated influenza vaccine (adjTIV) and full-dose seasonal non-adjuvanted trivalent inactivated influenza vaccine (TIV) in children. This data will inform future policy considerations for influenza vaccine. The study is not powered to detect significant differences between vaccines or groups, and no hypotheses are to be tested; therefore, immunogenicity and safety objectives are to be analyzed descriptively.

NCT ID: NCT01818362 Completed - Seasonal Influenza Clinical Trials

A Phase I Study of Candidate Influenza Vaccines MVA-NP+M1 and ChAdOx1 NP+M1

Start date: April 2013
Phase: Phase 1
Study type: Interventional

This will be a randomised observational phase 1 study in 48 healthy volunteers aged 18-50. The study is assessing safety and immunogenicity of viral vectored vaccines ChAdOx1 NP+M1 and MVA NP+M1 in heterologous prime-boost regimens. A crossover design will allow comparison of the two vaccines. Volunteers will be divided into 4 groups (n=12 in each group). Groups will be recruited simultaneously to control for seasonal changes in influenza. This is because at certain times of year there is likely to be a higher naturally acquired T cell response to influenza than at other times due to circulating influenza virus in the community. The study has been extended to include 2 additional groups (group 5 & 6), each containing 12 healthy adults aged 50 years or above. Group 5 will receive ChAdOx 1 NP+M1 on day 0, and group 6 will receive this with an additional boost of MVA-NP+M1 8 weeks later.

NCT ID: NCT01816464 Completed - Influenza Clinical Trials

Immunogenicity and Safety of Trivalent Influenza Vaccine in Pregnant and Nonpregnant HIV Uninfected Women

Start date: September 2013
Phase: Phase 4
Study type: Interventional

The overall aim of this project is to evaluate the immunogenicity of TIV vaccination in HIV-uninfected pregnant women compared with HIV-uninfected non-pregnant women in 2013. Safety data will also be collected.THe Pregnancy outcomes and the transplacental transfer of antibodies will also be assessed.

NCT ID: NCT01812980 Completed - Influenza Clinical Trials

Immunogenicity and Safety of Trivalent Influenza Vaccine in Non-pregnant HIV-infected Women

Start date: May 2013
Phase: Phase 4
Study type: Interventional

The overall aim of this project is to evaluate the immunogenicity of TIV vaccination in HIV-infected non-pregnant women in 2013. Safety data including solicited local and systemic reactions to the vaccine will also be assessed.

NCT ID: NCT01811823 Completed - HIV Clinical Trials

Effect of HIV and/or Active Tuberculosis on the Immune Responses to Trivalent Influenza Vaccine (TIV) in Adults

TIV_HIV_TB
Start date: March 31, 2014
Phase: Phase 4
Study type: Interventional

Prospective, open-labelled study which will enrol 360 participants in four groups of 80 participants including: HIV-uninfected adults without evidence of TB; HIV-infected adults without any evidence of TB; HIV-uninfected adults with concurrent microbiologic confirmed TB, HIV-infected adults with concurrent microbiologic confirmed TB. Participants will receive the recommended seasonal 2013 un-adjuvanted Trivalent Influenza Vaccine (TIV). At 3 visits, blood will be collected for determination of immune responses. Objective: • To determine the effect of HIV-infection, tuberculosis (TB) and HIV-TB co-infection on immune responses

NCT ID: NCT01808456 Completed - Influenza, Human Clinical Trials

Standard-dose Versus High-dose Flu Vaccine in Solid Organ Transplant.

Start date: October 2013
Phase: Phase 4
Study type: Interventional

Influenza infection in recipients of solid organ transplants recipients while on maintenance immunosuppressant therapy is associated with increased morbidity and mortality. Although influenza vaccination is recommended in these high-risk patients, safety and immunogenicity of commercially available different strengths of influenza vaccine have not been established. The primary study objective is to determine the safety and immunogenicity of Fluzone and Fluzone High-Dose, with a secondary objective to determine the tolerability and efficacy of two different strengths of trivalent influenza vaccine (TIV, flu vaccine). Both vaccines are commercially available for use in the general population. Fluzone is approved for use in 6 months of age and older, and Fluzone High-Dose is approved for use in 65 years of age and older. This is an exploratory, open-label, parallel group, observer blinded, prospective study. All recipients of kidney, lung, heart transplants who attend for post-transplant follow-up, at least 30-days after transplantation at Inova Fairfax Hospital Transplant Center will be eligible for enrollment. Enrolled patients will be followed for three months (a total of 4 visits) following enrollment and randomization: day 0 (enrollment) and follow-up visits at weeks 1, 4, 8, and 12.