Active clinical trials for "Hepatitis A"

This study will only include infants born to mothers who are tested as seronegative for human immunodeficiency virus (HIV) & hepatitis B surface antigen (HBsAg). The purpose of this study is to demonstrate in infants who received a birth dose of hepatitis B vaccine that Tritanrix™-HepB/Hib-MenAC vaccine is at least as good as Tritanrix™-HepB/Hiberix™ with respect to immunogenicity of the hepatitis B antigen.

Hepatitis A vaccine will be given either alone or together with measles, mumps, rubella, and varicella vaccine and pneumococcal 7-valent conjugate vaccine at the first dose and together with measles, mumps, rubella, and varicella [Oka/Merck] virus vaccine at the second dose. Immunogenicity and safety data will be collected after each dose of vaccine.

To evaluate the persistence of antibodies against hepatitis B at 30, 42, 54 and 66 months after the first dose of the hepatitis B primary vaccination course. Subjects were aged 11 to 15 years at the time of the primary vaccination course. At the time of enrollment in the present long-term follow-up study subjects were aged 13 to 18 years. The Protocol Posting has been updated in order to comply with the FDA Amendment Act, Sep 2007.

In this study, subjects who received primary neonatal vaccination with hepatitis B vaccine at 0, 1, 2, 12 months, 20 years ago in the 103860/272 primary study will be evaluated for immunological memory to hepatitis B vaccine via assessment of the response to a vaccine challenge dose.

Hepatitis C virus infection is the most common blood-borne infection in the United States and is a leading cause of chronic liver disease affecting 130 million people around the world. It is estimated that 1.6% of the US population may be affected by Hepatitis C infection. The only recommended treatment that has been approved for your condition is the use of interferon and ribavirin. In patients with chronic Hepatitis C, there tends to be an accumulation of fat in the liver. Fatty liver has been associated with failure of treatment. The accumulation of fat in the liver has been blamed on a particular type of fat called triglycerides. Fish oil, by reducing a type of fat called VLDL, can lower the triglyceride concentration by as much as 50 percent or more. This study seeks to determine if the administration of fish oil along with standard treatment to patients with Hepatitis C will increase the treatment response rates.

To evaluate the response to an additional dose (challenge dose) of hepatitis B vaccine, when given to subjects who had received primary vaccination of Engerix™-B vaccine approximately 72-78 months ago. This protocol posting deals with objectives & outcome measures of the challenge phase. The Protocol Posting has been updated in order to comply with the FDA Amendment Act, Sep 2007.

The current study will evaluate immunological memory to hepatitis B antigen in subjects who received primary neonatal vaccination of hepatitis B vaccine (Engerix™-B ), 20 years ago in the primary study and who have anti-HBs antibody concentrations < pre-defined cut-off values at the previous long-term time point. All participating subjects will receive a challenge dose of hepatitis B vaccine. Subjects will be aged approximately 20-21 years at the time of this study. No new subjects will be recruited in this long-term follow-up study. Blood sampling will be done one month after the administration of the challenge dose. The Protocol Posting has been updated in order to comply with the FDA Amendment Act, Sep 2007.

This is an exploratory study to evaluate the impact of eliminating steroid administration upon viral HCV load at 12 months measured by quantitative serum HCV-RNA determination in patients transplanted for HCV cirrhosis.

Objective: Determine if maximum doses of rosuvastatin are safe in patients infected with hepatitis C and if the so called pleiotropic effects of rosuvastatin cause a decrease in the HCV viral load. Primary study parameters: 1. to which extend causes rosuvastatin serious side effects like rhabdomyolysis and hepatotoxicity in patients chronically infected with hepatitis C? 2. does treatment with rosuvastatin in HCV infected patients lead to lower HCV-RNA viral load? 3. Is a decrease in LDL correlated to a decrease in HCV-RNA load?

Persistence of anti-HBs antibodies at Month 24, 30 and 36 in subjects who had completed primary vaccination was evaluated. The anamnestic response to a booster dose was evaluated in subjects with anti-HBs antibody titres < 10 mIU/ml at previous timepoint. The study also evaluated the effect of a booster dose of the vaccine (Month 42) after primary vaccination.