View clinical trials related to Hepatitis B.
Filter by:The primary purpose of this study is to determine the ability of the Protector Cap Jet Injector to prevent cross-contamination in the next injection sample. The hypothesis is that the Protector Cap Jet Injector will prevent contamination in the next injection sample, even following injection of volunteers with high levels of hepatitis B virus.
* AIMS OF THE STUDY (STUDY OBJECTIVES) 1. To test the effect of daily lamivudine (100 mg) in reducing the risk of HBV reactivation and hepatitis development in HBsAg (+) NHL patients. 2. To test the efficacy of daily lamivudine in preventing and treating hepatitis B reactivation and in circumventing hepatic failure and death. 3. To test whether lamivudine can improve the overall outcome of NHL patients who are HBV carriers. (Study end-points: The major end-point: hepatitis B reactivation in NHL patients---defined by higher than 10-fold increase of serum HBV DNA level and/or reappearance of HBeAg in the serum during and within 6 months after chemotherapy. The minor end-point I : events of hepatic failure and death---defined by jaundice with hepatic encephalopathy. The minor end-point II: the response rate and survival rate in HBsAg-positive NHL patients receiving lamivudine prophylaxis and treatment.)
Serum HBV DNA is a referent but insufficient marker of therapeutic follow-up in chronic hepatitis B treatment. Intra hepatic cccDNA disappearance reflects HBV eradication in the liver. Intra lymphocyte cccDNA could be a new marker of HBV eradication after treatment. The major interest of this marker is that it can be measured by a simple blood test instead of a liver biopsy.
The primary purpose of this study is to demonstrate the lot-to-lot consistency of 3 production lots of GSK Biologicals' Hib-MenAC (Haemophilus influenzae type b and meningococcal serogroups A and C) vaccine when reconstituted with Tritanrix™-HepB (diphtheria, tetanus, pertussis, and hepatitis B) vaccine and administered as a single injection.
To evaluate the persistence of anti-hepatitis A virus (HAV) and anti-hepatitis B surface antigen (HBs) antibodies up to 2, 3, 4 and 5 years after administration of the first dose of the study vaccine. The Protocol Posting has been updated in order to comply with the FDA Amendment Act, Sep 2007.
To evaluate the persistence of immune response 5 years and 6 years after the first vaccine dose.
GSK Biologicals' currently licensed multidose hepatitis B vaccine will be compared to the currently licensed monodose hepatitis B vaccine in a population with well documented hepatitis B immunological response to the vaccine (Belgium).
To evaluate the persistence of anti-hepatitis A virus (anti-HAV) and anti-hepatitis B surface antigen (anti-HBs) antibodies up to 6, 7, 8, 9 and 10 years after administration of the first dose of the study vaccine.
The purpose of the study is to compare the effectiveness of 3 different treatment regimens in reducing or clearing the Hepatitis B Virus in patients infected with HIV and Hepatitis B (co-infection)
Does vaccinating hemodialysis patients with Twinrix® (combination vaccine against hepatitis A and hepatitis B) result in a difference in hepatitis B antibody response in comparison to the monovalent hepatitis B vaccine? Hepatitis B infection is an important cause of mortality and morbidity. Current standard vaccination practices have low efficacy levels in patients (eg. hemodialysis patients) who are most susceptible of infection. Efficacy of the two regiments will be studied.