Active clinical trials for "Hepatitis A"

This study will demonstrate the immunogenicity and evaluate the safety/tolerability of the vaccine in Chinese children between 12 and 23 months of age.

The HALT-C Trial is a National Institute of Diabetes and Digestive and Kidney Diseases sponsored, randomized clinical trial of long-term use of Peginterferon alfa-2a (pegylated interferon) in patients who failed to respond to prior interferon treatment. All patients who enter the trial will be treated for 6 months with Peginterferon alfa-2a and Ribavirin. Patients who respond to this 6 month treatment will continue to be treated for an additional 6 months. Patients who do not respond to this treatment will be eligible for the long-term maintenance phase of this study where patients will be randomly selected to be treated with Peginterferon alfa-2a or to discontinue treatment for 3.5 years. Patients in both arms of this study will be followed closely with quarterly study visits. The combination of peginterferon plus ribavirin has recently been approved by the FDA for treatment of chronic hepatitis C. Patients who remain HCV-RNA positive after being treated for at least 6 months with peginterferon and ribavirin outside of this study may be eligible to directly enter the randomized portion of the HALT-C Trial. The HALT-C study is designed to determine if continuing interferon long-term over several years will suppress Hepatitis C virus, prevent progression to cirrhosis, prevent liver cancer and reduce the need for liver transplantation.

The purpose of this study is to determine whether the HBAI20 vaccine is safe and more immunogenic than the HBVaxPro-10µg in people who have never been vaccinated with a hepatitis B vaccine and in people who have been vaccinated 6 times with hepatitis B vaccine but do not have a protective anti hepatitis B antibody titer.

The Birth-Cohort Evaluation to Advance Screening and Testing for Hepatitis C (BEST-C) compares the effectiveness of the birth cohort HCV screening strategy with the current risk-based screening approach to detect previous unidentified persons with viral hepatitis C who receive health care in primary systems. The study involved three clinical sites, The University of Alabama, Birmingham; The Henry Ford Health System; and the Mount Sinai Medical Center, each of which developed an independent intervention to experimentally compare the number of positive Hepatitis C Virus (HCV) diagnoses found using the birth-cohort screening approach with that found using traditional risk-based screening, or standard of care strategies. Birth cohort testing is defined as the systematic recommendation of HCV antibody testing to any persons born during the years of 1945 to 1965 who do not have clinically documented evidence of a prior antibody test without regards to the patient's stated risk of exposure to the virus.

The purpose of this study is to determine if 8 weeks of Daclatasvir plus Sofosbuvir with or without Ribavirin is safe and effective in the treatment of genotype 3 hepatitis C infected patients without advanced fibrosis or liver cirrhosis who have never been treated previously.

Hepatitis B virus infection is a common occurrence among patients with HIV. Effective vaccines are available, but there's some uncertainty regarding specific dosages, specially among those who have not responded to an initial vaccination. The purpose of this study is to determine the effectiveness of a simplified immunization schedule compared to a high-dose one.

There is a need for more effective and better-tolerated hepatitis B vaccines for low responder high-risk populations including patients with renal impairment and/or diabetes mellitus and those aged over 40 years. Several approaches are available to enhance the potency of hepatitis B virus vaccines including use of the more highly immunogenic antigens, replacing alum with potentially more effective adjuvants, and increasing the dose of vaccine antigen. A combination of these strategies is being tested in this study to identify the most promising candidate approaches to take forward into advanced clinical development

The objectives of this study are: To evaluate the efficacy and safety of two different treatment regimens with BI 201335 (high dose given for 12 weeks or low dose given for 24 weeks both in combination with Pegylated interferon-a and Ribavirin (PegIFN/RBV) as compared to PegIFN/RBV alone in treatment-naïve (TN) chronic genotype 1 hepatitis C virus infected patients. Evaluate the efficacy and the safety of BI 201335 high dose given for 12 weeks in combination with PegIFN/RBV given for 24 to 48 weeks as compared to PegIFN/RBV alone in chronic GT-1 hepatitis C virus infected relapser patients who failed a prior PegIFN/RBV treatment.

This study is designed to assess the safety and tolerability of boceprevir dosed 800 mg three times daily (TID) orally (PO) in combination with Peginterferon alfa-2b (PEG2b) 1.5 mcg/kg once a week (QW) administered subcutaneously (SC) plus ribavirin (RBV) (800 to 1400 mg/day) PO in Response Guided Therapy (RGT) in adult Vietnamese subjects with Chronic Hepatitis C, Genotype 1 (CHC GT1) who failed prior treatment with any interferon and ribavirin in Vietnam.

This randomized, double blind, phase II study will evaluate the efficacy and safety of two doses of RO5024048 in combination with ritonavir-boosted danoprevir and Pegasys (peginterferon alpha-2a) and Copegus (ribavirin) in patients who failed a prior protease inhibitor containing regimen with or without pegylated interferon. Patients will be randomized to receive either a 2-week lead-in of RO5024048 (1500 mg or 1000 mg orally twice daily) in combination with Pegasys (180 mcg subcutaneously weekly) and Copegus (1000 mg or 1200 mg orally daily) followed by 24 weeks of therapy with RO5024048 in combination with danoprevir (100 mg orally twice daily) plus ritonavir (100 mg orally twice daily) and Pegasys and Copegus (QUAD therapy), or 24 weeks of therapy with RO5024048 in combination with danoprevir plus ritonavir and Pegasys and Copegus (QUAD therapy). Anticipated time on study treatment is 24 or 26 weeks, with a treatment-free follow-up of 24 weeks.