View clinical trials related to Hepatitis A.
Filter by:The purpose of this study is to see if treatment of chronic hepatitis C in people who are on opiate replacement therapy such as methadone or buprenorphine (including patient who still inject drugs) is safe and effective.
In this project, the investigators aim to study the role of biliverdin reductase A (BLVRA) in HCV infected patients prior and during/after standard antiviral therapy in association with viral clearance, disease progression and treatment response and in comparison with healthy subjects.
The purpose of this study is to compare how safe, tolerable, and effective a novel drug, raltegravir, is to a commonly used combination, atazanavir/ritonavir, as initial treatment in HIV/Hepatitis C co-infected injecting drug users on a methadone program.
Male homosexuals are at risk for hepatitis A virus (HAV) infection, and HAV vaccination has been recommended to prevent HAV infection in male homosexuals. HIV infection may impair serological responses to HAV vaccination in HIV-infected patients. The investigators hypothesize that 3 doses of HAV vaccine will improve serological responses to HAV vaccine in HIV-infected patients.
Hepatitis C is a small RNA virus spread by blood to blood contamination. There are to date 6 known genotypes and within each there are several subtypes. Although all genotypes are distributed worldwide some are more common in certain countries and/or among certain populations.
To study retreatment in patients who failed prior treatment with interferon alpha (pegylated or non-pegylated) with or without ribavirin in a real-life setting in an observational/noninterventional study.
The purpose of this study is to determine if concentration-controlled ribavirin dosing can achieve a targeted level of plasma exposures and if it appears safe and effective compared with standard weight-based ribavirin dosing. Forty, previously treatment-naive participants with genotype 1 disease will be randomized to receive concentration-guided or standard weight-based ribavirin. Peginterferon alfa 2a,ribavirin, and telaprevir will be provided through the study.
This study will compare the efficacy and safety of 2 different durations of treatment with PEGASYS, in patients with HBeAg-negative chronic HBV. It will also compare PEGASYS treatment alone and in combination with lamivudine. The anticipated time on study treatment is 1-2 years, and the target sample size is 100-500 individuals.
The purpose of this study is to evaluate the effect of 48 vs 24 weeks of treatment with Peginterferon alfa-2b plus weight-based ribavirin on Sustained Virologic Response (SVR) and relapse rates in patients infected with genotype 3 chronic hepatitis C (CHC) who do not achieve a Rapid Virologic Response (RVR) but attain a complete Early Virologic Response (cEVR).
HCV002TV is a Phase I study to ascertain the safety and immunogenicity of a novel vaccine against Hepatitis C virus (HCV) in chronically infected patients. The vaccine is based on the sequential delivery, by intramuscular route, of two different adenoviral vectors, of chimpanzee and human origin respectively, bearing the same genetic information for HCV antigens (NS region). The two recombinant vaccine vectors, called AdCh3NSmut and Ad6NSmut, are weakened and unable to multiply within the body; they are designed to induce an immune response against HCV proteins. AdCh3NSmut and Ad6NSmut are being used in the ongoing HCV001 study in healthy volunteers with very good safety and immunogenicity results. HCV002TV is a dose-escalation study; the AdCh3NSmut is administered as priming vaccination and Ad6NSmut as boosting vaccination. The trial includes: - Arm A, in which vaccinated patients are into Interferon-ribavirin therapy (the gold standard therapy for hepatitis C); - Arm B, in which vaccinated patients are not into therapy.