View clinical trials related to Hepatitis A.
Filter by:This study evaluated the efficacy and safety of the combination of peginterferon alfa-2a plus ribavirin in treatment-naïve patients with HCV genotype 1b infection, compared with peginterferon alfa-2a monotherapy. Additionally, the study evaluated the efficacy and safety of the combination of peginterferon alfa-2a plus ribavirin in patients with CHC who had failed to respond to previous conventional-interferon based therapy.
The purpose of this study is to determine immune status of adolescents who responded to a primary series of recombinant hepatitis B vaccine given at birth and to assess their response to a booster dose of vaccine.
The primary objective of the study is to demonstrate that the efficacy of peginterferon alfa-2a 40KD combination therapy with ribavirin in interferon naïve patients with chronic hepatitis C virus infection genotype 2 or 3 given for 12 weeks is non-inferior to 24 weeks.
This laboratory-based substudy of an effectiveness trial of two Hepatitis B vaccines in HIV-negative youths is being done to evaluate the genetic contribution to the individualized immune response.
1. To characterize the tolerability profile of subcutaneous (SC) CPG 10101 alone, with pegylated interferon, ribavirin or both pegylated interferon and ribavirin when administered weekly for twelve weeks in relapsed HCV positive subjects. 2. To assess the effect of subcutaneous (SC) CPG 10101 alone, with pegylated interferon, ribavirin or both pegylated interferon and ribavirin on serum Hepatitis C Virus (HCV) RNA concentrations
The purpose of this study is to determine the immune response to an additional (booster) dose of hepatitis B vaccine 5-14 years after a three dose series was given
The purpose of this study is to confirm the safety, efficacy and delineate the pharmacokinetic properties of nelfinavir in HIV/ Hepatitis C coinfected subjects with Child Pugh A compensated cirrhosis and or Hepatic fibrosis
This is a single-centre prospective randomised study comparing the virological and histological response of HBV infection to lamivudine in combination with interferon versus lamivudine alone.
Immune globulin is effective about 85% of the time in preventing hepatitis A in people who have been exposed, if it is given within 14 days of exposure. Several lines of evidence suggest that hepatitis A vaccine might also be effective in this setting, and vaccine has the advantage of providing long term protection. In this study, we compare how well immune globulin and hepatitis A vaccine work in preventing clinical hepatitis A in household contacts of persons with the disease. The study's hypothesis is that the the proportion of exposed household contacts who receive hepatitis A vaccine within 14 days of exposure and develop hepatitis A disease will be similar to the proportion of exposure household contacts who receive immune globulin within 14 days of exposure and develop hepatitis A disease.
Infants born to immune mothers and therefore having passively-transferred maternal antibody (PMA) to hepatitis A virus (HAV) have a blunted immune response to hepatitis A vaccine. We compared the immunogenicity of hepatitis A vaccine among infants with and without PMA, vaccinated on different schedules. We found that when vaccination is begun at or after 12 months of age, there was no difference in the immune response to the vaccine between infants born to immune vs. susceptible mothers.