Active clinical trials for "Hepatitis"

Combination therapies using nucleos(t)ide analogues lead to higher viral suppression although it may not be sustained for long. Also it remains unknown if combination of more potent analogues is more beneficial than individual drugs. Thus this study is carried out to determine the efficacy and safety of combination of tenofovir plus telbivudine (two most potent nucleos(t)ide analogues)versus monotherapy with either drug alone. This is a 104 week open labelled, prospective, randomized, multicentric study. The patient will receive either tenofovir, telbivudine or the combination of two drugs. After completion of 24 weeks, the non-responders (ie HBV-DNA > 300 copies/ ml) will be switched to combination arm and will continue receiving tenofovir plus telbivudine for 104 weeks.

The purpose of this study is to further evaluate the safety and seroprotective immune response of a new investigational hepatitis B virus (HBV) vaccine, HEPLISAV™, in subjects 11-55 years old. The primary hypothesis is that HEPLISAV™ is well tolerated.

The purpose of this clinical research study is to learn if the study drug entecavir will prevent the recurrence of hepatitis B virus (HBV) in participants who receive an orthotopic liver transplant (OLT) due to HBV infection.

The purpose of this study is to find out if a new investigational hepatitis B virus vaccine, HEPLISAV™, is safe and effective compared with Engerix-B® vaccine in subjects 11-55 years old. The primary hypothesis is that the seroprotective immune response of HEPLISAV™ is at least as good as that of Engerix-B®.

To describe the immunogenicity and safety of modified process hepatitis B vaccine administered to renal predialysis and dialysis patients

This randomized phase II trial studies how well S-Adenosyl-L-Methionine Disulphate P-Toluene-Sulfonate (SAMe) works compared to a placebo in preventing liver cancer in patients with chronic hepatitis C infection. Chemoprevention is the use of certain drugs to keep cancer from forming. The use of SAMe may keep cancer from forming in patients with advanced liver disease

DTaP-HB-PRP~T combined vaccine is being developed in order to comply with expanding programs for immunization in infancy, while offering the benefit of a reduced number of injections, and potentially of an increased acceptance. Primary Objectives: To describe the antibody persistence at 12 to 18 months following a three-dose primary series vaccination of either DTaP-HB-PRP~T or Tritanrix-Hep B/Hib™ given at 6, 10 and 14 weeks of age, and one dose of Hepatitis B (Hep B) vaccine given at birth. To describe the effect of a booster dose of DTaP-HB-PRP~T on immunogenicity at 12 to 18 months following a three-dose primary series vaccination of either DTaP-HB-PRP~T or Tritanrix HepB/Hib™ given at 6, 10 and 14 weeks of age, and one dose of Hep B vaccine given at birth. Secondary Objective: To describe the safety profile of the booster dose of the DTaP-HB-PRP~T vaccine when administered concomitantly with Oral Polio Vaccine (OPV).

In HIV infected patients, individuals exposed to the virus of Hepatitis B are more susceptible to develop a chronic and severe liver disease with a major risk of cirrhosis and liver cancer. However, the existing protocol of vaccination against Hepatitis B is less efficient in HIV-infected patients than in non HIV-infected-patients, and, in case of response, its longevity has to be followed up carefully. This study compares the efficacy of the standard protocol vaccination with GenHevac-B and 2 other protocols, a double-dose of GenHevac-B and a set of intradermal injections of Genhevac-B, in HIV-infected patients with lymphocytes T CD4 level above 200 permm3.

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.

This study will evaluate the persistence of the immune response to HAV (hepatitis A virus) antigens and HBs (hepatitis B surface) antigens in healthy adults previously vaccinated with Twinrix Adult in the primary study, HAB-032 (208127/022). The subjects will be invited for blood sampling 16, 17, 18, 19 and 20 years after the primary vaccination to evaluate the antibody persistence. For subjects in whom low circulating antibodies are detected, the presence of immune memory against hepatitis A & B antigens will be investigated by the administration of a challenge dose of the appropriate vaccine (Havrix and/or Engerix-B) at the next planned visit. No new subjects will be recruited during this study.