View clinical trials related to Virus Diseases.
Filter by:The overall objective of this multisite, multicountry Zika in Infants and Pregnancy (ZIP) study is to assess the strength of the association between Zika virus infection (ZIKV) during pregnancy and adverse maternal/fetal outcomes and the risk of vertical transmission. The study will prospectively enroll a cohort of pregnant women up to 17 weeks and 6 days gestation and subjects at any gestational age with acute Zika infection, confirmed by serology or PCR (polymerase chain reaction) test. The study will follow these women through their pregnancy to identify for clinical evidence of acute ZIKV, while controlling for potential confounders. Outcomes in the women, the developing fetus, and infants will be assessed. All protocol-specified data will be recorded and entered in a central data management system for the purposes of analysis of composite data from the study.
Respiratory Viral Infections (RVI) are particularly frequent in young children. Old data mention the deleterious role of some viruses such as the Respiratory Syncytial Virus in young children with cystic fibrosis (CF). However, recent epidemiological data on RVI in CF children are rare and the impact of most frequent viruses such as human rhinoviruses is usually not correctly evaluated. The aim of this study is to assess the frequency of lower and upper RVI during a 1 year follow-up in CF infants and to evaluate the impact of RVI at a clinical, microbiological and therapeutic level. Our hypothesis is that frequent and/or clinically severe RVIs have the worst impact in the short term and without any particular link with a specific virus as previously described.
This Phase 2 Quadrivalent VLP Vaccine study is intended to replicate and extend the immunogenicity and safety results obtained in earlier Phase 1-2 and Phase 2 studies. The study is being conducted to evaluate that the immunogenicity profile of the Quadrivalent VLP Vaccine meets the US Center for Biologics Evaluation and Research (CBER) licensure criteria and to evaluate if the immunogenicity and the safety profile of the Quadrivalent VLP Vaccine is acceptable and comparable to that of the FluLaval® Tetra and Fluzone® High-Dose (HD). The study will also help to define the optimal dose in this population, establish potential competitive advantages, and support the design of future studies.
This study will evaluate subjects with fever and/or rash to determine the percentage of those infected by the Zika, Chikungunya, or Dengue virus. The study will also compare the clinical signs, symptoms, and lab abnormalities related to each virus, to better specify each virus's characteristics.
10 patients with chronic genotype 1 HCV infection and mixed cryoglobulinemia will be treated with Ledipasvir/Sofosbuvir 90mg/400 mg FDC once daily for 12 weeks (naïve subjects or non-cirrhotic treatment experienced subjects) or 24 weeks (treatment experienced subjects with cirrhosis). The researchers anticipate that approximately 20% of subjects may have cirrhosis.
The primary objective of this study is to evaluate the antiviral efficacy, safety, and tolerability of therapy with sofosbuvir/velpatasvir (SOF/VEL) fixed-dose combination (FDC) and ribavirin (RBV) in participants with chronic genotype 1 or 2 hepatitis C virus (HCV) infection who have previously failed a direct-acting antiviral (DAA)-containing regimen.
The primary objective of this protocol is to provide expanded access to tabelecleucel to participants with Epstein-Barr virus-associated diseases and malignancies for whom there are no other appropriate therapeutic options, and who are not eligible to enroll in clinical studies designed to support the development and registration of tabelecleucel.
The purpose of this study is to find out whether Self-HPV may be an accurate method for the follow-up of women with a history of HPV infection.
The Zika epidemic has spread into the three French Overseas Departments in the Caribbean (DFAs). It is therefore urgent to set up tools to collect clinical and paraclinical data for the evaluation of potential complications due to having ZIKV infection during pregnancy. This study is meant to collect, within usual care practices, clinical and paraclinical information (including imaging and laboratory results) as well as biological samples allowing the precise description of the consequences of ZIKV infection during pregnancy. This study is the 2nd arm of a global research program in the 3 French Overseas Departments in the Caribbean. It is complementary to the first arm (ZIKA-DFA-FE) consisting in the follow-up of women in the French Overseas Departments who are pregnant during the Zika epidemic period. The study population is made up of infants born during and up to 9 months after the end of the Zika epidemic period in the French Overseas Departments. The data and biological specimens collected for this project will be done so through the recommended standard of care which has been put in place considering the ZIKV epidemic in the 3 French Overseas Departments, upholding existing recommendations (profession and/or recommendation from the public health authorities)
Hepatitis E virus (HEV) is an emerging disease. The genotype 1 and 2 are predominant in Asia and Africa, and are responsible for recurrent epidemics. Genotype 3 is the main genotype found in Europe and North America and is responsible for sporadic infections except for travel associated diseases. HEV had a principally asymptomatic form. However, it was recently demonstrated that it could lead to a chronic form, especially in immunosuppressed patients. Moreover, in liver transplanted patients the infection could mimic a rejection and lead to the loss of the transplant. In other immunosuppressed patients, chronic hepatitis lead to cirrhosis and its well-known complications (ascitis, digestive hemorrhage, liver failure...). There is a lack of information about the prevalence of this disease. In Canada the incidence of HEV infection was high (15-86% for liver transplanted children with liver tests disturbed). In Germany the prevalence was lower: 3,2% in liver & kidney transplanted children whereas 7,4% in control. It was shown in a retrospective study that in liver (and liver+kidney) transplanted children the prevalence in Lyon was around 8,3%. This study will determined in a prospective approach the HEV prevalence in kidney, lung, heart and bone marrow transplanted children in Lyon.