View clinical trials related to Chikungunya Virus.
Filter by:The purpose of this phase 3, randomized, double-blind, placebo-controlled study is to evaluate the safety and immunogenicity to PXVX0317 in adults ≥65 years of age.
The goal of this multi-center, randomized, double blind, placebo controlled study is to evaluate the safety and immunogenicity of PXVX0317 in healthy adult and adolescent subjects.
The objective of this study is to assess the safety and immunogenicity of PXVX0317 (Chikungunya Virus Virus-Like Particle Vaccine [CHIKV VLP], aluminum hydroxide adjuvanted).
This clinical study will assess the safety, tolerability, and immunogenicity of VAL-181388 in healthy participants.
The rationale for a Treatment Use Investigational Device Exemption (IDE) of INTERCEPT PCs is to address current gaps in platelet transfusion safety in selected geographic regions. The objective is to provide access to INTERCEPT PCs for patients who might be at risk of transfusion-transmitted infection (TTI) due to Chikungunya virus (CHIKV) and Dengue virus (DENV) in regions in which a substantial proportion of the population has been infected or is at risk of infection by these pathogens (Petersen 2014); and the risk of asymptomatic infection among qualified blood donors is recognized (Stramer 2012, Adda 2014). The study is designed as a prospective, open label, multi-center, observational study to evaluate the safety and efficacy of INTERCEPT platelet components.
Background: - Chikungunya virus (CHIKV) is transmitted by mosquitoes. It can cause fever, headache, muscle pain, fatigue, and joint pain. The disease usually does not cause death. But the joint pain, which may be directly related to the infecting virus, may be severe and last for several months. CHIKV outbreaks are most common in Africa, India, and Asia. A new experimental vaccine for CHIKV has been developed, and researchers are testing it in healthy adults. Participants cannot develop CHIKV from this vaccine. Objectives: - To test the safety and effectiveness of a Chikungunya virus vaccine. Eligibility: - Healthy individuals between 18 and 50 years of age. Design: - This study, including vaccine doses and followup tests, will last about 44 weeks. Participants will have three vaccination visits, six followup clinic visits, and three telephone contacts during this study. Vaccination visits will take about 4 hours. Most other clinic visits will usually take 2 hours. The telephone contacts will take about 15 minutes. - Participants will be screened with a physical exam and medical history. Blood samples will also be collected. - Participants will be assigned to one of three dose groups. Information about doses will be provided before the start of the vaccinations. - Vaccine injections will be given at the start of the study, at 4 weeks, and at 20 weeks. Participants will be asked to keep an eye on the injection site for 7 days and to notify researchers if there are any side effects. - Participants will be monitored throughout the study with blood samples and clinic visits.
A severe outbreak of Chikungunya fever has been reported at La Réunion Island (France) in 2005-2006. Chikungunya is a viral disease. Chikungunya virus is an alphavirus transmitted to humans by the bite of infected mosquitoes, usually of the genus Aedes (Aedes albopictus in La Réunion). To date, more than 266,000 cases were estimated to have occurred in the island (760,000 inhabitants). Most of cases are expressed as a mild disease, with intense fever and arthralgias, with rare but serious complications (encephalitis, liver, cardiac or renal failures.) having required a hospitalization in an intensive care unit. 273 of such serious cases (immediately life threatening condition) have been reported among the cases, in patients aged over 10 days (59% were 65+ age old). Chikungunya was proven in 246 serious cases; 101 patients had comorbidities, and 27% of confirmed cases eventually died. In addition 44 cases of mother-to-child infections were reported and 40 were confirmed (one died). To date, in 248 death certificates, chikungunya was reported as the direct or indirect cause of death, with a median age of 79, range 0-102, and a sex-ratio (M/F) of 0.95. InVS, in collaboration with Inserm (French NIH) also reported (by June 6, 2006) a significant excess of mortality (from all causes) during the major outbreak which occurred from December, 2005 (+10%) to April, 2006 (10.1%), with a peak of excess mortality reached in February (+34.4%), concommitant to the peak of incidence. Today, there is no antiviral treatment against Chikungunya. We showed from ex-vivo studies (in a sensitive model of cells culture to the viral infection) that chloroquine provides a significant inhibition on the replication of the Chikungunya virus. This efficacy seemed also to be reached at a plasmatic concentration of similar order of magnitude as recommended for treating malaria with this drug. This trial aims to assess efficacy and safety of chloroquine as as therapeutic treatment of chikungunya disease.