View clinical trials related to Hepatitis A.
Filter by:The investigators seek to provide immunization for individuals who are at high risk of contracting hepatitis B virus (HBV) infection because of their illicit drug use. The investigators will be using the syringe exchange programs (SEPs) in Hartford and Bridgeport, CT and Chicago, IL to contact high risk individuals and refer them for vaccination. The primary purpose of the study is to compare the standard schedule of hepatitis B vaccination at 0, 1, and 6 months to an accelerated schedule of vaccination at 0, 1, and 2 months. The investigators hypothesize that the accelerated scheduling will result in improved completion rates without significant loss in vaccine efficacy.
This randomized, parallel arm study will evaluate the efficacy and safety of Pegasys (peginterferon alfa-2a) in combination with 2 different doses of ribavirin in patients with chronic hepatitis C, genotype 2 or 3. Patients will be randomized to 4 treatment groups receiving Pegasys (180 mcg subcutaneously weekly) for either 16 or 24 weeks with one of two doses of ribavirin (400 mg or 800 mg orally daily). The anticipated time on study treatment is 16 or 24 weeks with a 24-week follow-up.
To identify a shorter duration of antiviral therapy (12 or 16 weeks) for the combination of daclatasvir with pegylated interferon alfa-2a and ribavirin.
This is a randomized, double-blind clinical trial of two inactivated hepatitis A vaccines in healthy children, immunogenicity and interchangeability of the two inactivated hepatitis A vaccines were evaluated.
The purpose of this trial is to describe the Seroprotection Rate (SPR) at least 2 years following completion of a primary series with a hepatitis B vaccine (Base Study V232-059, NCT00440531) and 1 month following a challenge dose with a Modified Process Hepatitis B vaccine.
Loss of total mass of muscles (catabolism) is a serious clinical problem in patients with alcoholic hepatitis. The liver might play an important role in this stress-catabolism by increasing the production of urea during the inflammatory process. The purpose of this study is to examine the regulation of urea synthesis in patients with alcoholic hepatitis and to study the effect of the anti-inflammatory drugs prednisolone and pentoxifylline on this regulation.
The purpose of this study is to evaluate the effectiveness of telaprevir administered twice daily versus every 8 hours in combination with Peg-IFN-alfa-2a and ribavirin in treatment-naïve participants with chronic HCV genotype 1 infection.
This study will evaluate immune responses in patients with HBeAg-negative chronic Hepatitis B treated with Pegasys (peginterferon alfa-2a). Eligible patients will have been randomized in study ML18253 to receive Pegasys 180 mcg subcutaneously for 48 or 96 weeks. Sample collection period for each patients will occur in the first 24 weeks.
HIV infection exerts a negative impact on the course of HCV infection. Co-infected individuals progress more rapidly to liver fibrosis, cirrhosis and ESLD compared to those infected with HCV alone. Some of the this accelerated fibrosis may be related to longterm chronic toxicity from protease inhibitor based ART. Hypothesis: Switching from ritonavir boosted-PI based ART regimen to a Raltegravir-based regimen will reduce the rate of hepatic fibrosis progression in HIV-HCV co-infected patients as measured by transient elastography (Fibroscan®) and the AST-to-platelet ratio index (APRI).
Vitamin D deficiency is commonly found in patients with chronic hepatitis C. The investigators hypothesize that the correction of hypovitaminosis D before the initiation of anti-HCV combination therapy and the maintenance of an optimal vitamin D status during antiviral therapy could improve the antiviral efficacy