View clinical trials related to Hepatitis B.
Filter by:The purpose of this study is to assess the long-term protection against HBV infection in adult subjects, aged 18-40 years vaccinated with three or four doses of Engerix-B 20 to 30 years ago
Background Hepatitis B virus (HBV) co-infection in individuals with hepatitis C virus (HCV) can enhance the severity of hepatitis and the risks of liver cirrhosis and hepatocellular carcinoma (HCC). Hepatitis B vaccine is an effective measure to prevent HBV infection. Whether patients with HCV infection have non-protective antibody responses to hepatitis B vaccination more frequently than healthy subjects is still controversial and studies about cytokine response have been seldom reported. Methods Not-in-treatment patients with chronic HCV infection and 1:2 community/gender matched healthy control were obtained from a community-based screening. All participants received three doses of hepatitis B vaccine (20 μg HBsAg/ml/dose) on 0, 1 and 6 months schedule. Anti-HBs was tested 1 month after the third dose of vaccination and was compared between two groups. Spot-forming cells (SFCs) of interferon-γ (IFN-γ), interleukin-2 (IL-2), interleukin-4 (IL-4), interleukin-5 (IL-5) and interleukin-6 (IL-6) produced by lymphocyte were tested by enzyme-linked immunospot (ELISPOT) and were compared between two groups.
Randomised, Comparative, Parallel-Arm Study to Assess Efficacy and Safety of Myrcludex B in Combination with Peginterferon Alfa-2a Versus Peginterferon Alfa-2a Alone in Patients with Chronic Viral Hepatitis B with Delta-agent
A randomized, open-label multicentre clinical trial of daily Myrcludex B versus entecavir in patients with HBeAg negative chronic hepatitis B.
Immunosuppression induced by cancer treatment increases the risk of hepatitis B virus (HBV) and hepatitis C virus (HCV) reactivations. These viral reactivations may be asymptomatic but can cause fulminant hepatitis and death. More, they impact the treatment of cancer by chemotherapy delays or stops. They can occur during cancer treatment but also after stopping, at the immunological rebound. This risk persists for at least 6 months after cessation. The key to the prevention, and the first step, is serological testing. It is also the main problem because international recommendations diverge. Hepatologists and infectious disease specialists recommend routine screening HBV of all candidates for immunosuppressive therapy. These recommendations are more implemented by hematologists, given the frequency of HBV reactivation associated to haematological malignancies. Clinical oncology societies guidelines suggest a selective screening in case of risk factors of hepatitis B or in patients with a strong immunosuppression (such as anti-CD20 based treatment, stem cell transplantation or lymphoma treatment). The consequence of these differences is a sub-screening by oncologists and the persistence of fatal cases. Screening before cytotoxic chemotherapy for solid tumors in countries with low prevalence of HBV and HCV virus is questionable. Selective screening of patients at risk HBV and HCV can be assessed.
The REP 301 treatment protocol involved the treatment of patients with chronic hepatitis B / hepatitis D co-infection with two agents: REP 2139-Ca and pegylated interferon (peg-IFN). In this protocol, similar reduction/clearance of serum HBsAg and improved response to immunotherapy were observed in addition to clearance of serum HDV RNA. The REP 301 protocol was designed to include a 24 week follow-up period after treatment, however given the strong antiviral response against HBV and HDV infection in these patients, it is now important to extend the follow-up period in these patients to monitor over a longer period after treatment the safety and efficacy combined REP 2139-Ca / peg-IFN treatment in patients in the REP 301 protocol.
The primary objectives of this study are to evaluate the safety, tolerability, and efficacy of tenofovir alafenamide (TAF) versus tenofovir disoproxil fumarate (TDF)-containing regimens at Week 24 in participants with chronic hepatitis B virus (HBV) infection and Stage 2 or greater chronic kidney disease who have received a liver transplant.
The purpose is to evaluate efficacy and safety of therapeutic HBV vaccine (mimogen-based) treatment in chronic hepatitis B patients and to explore the most effective dosage and provide the rational for optimal dosing schedule.
The purpose of this study is to evaluate the immune response, safety and reactogenicity after receiving combined DTPa-IPV/Hib vaccine when administered as a three-dose primary vaccination course at 3, 4.5 and 6 months of age and as a booster dose at 18 months of age in Russian healthy children according to the Russian immunisation schedule
The purpose of this study is to assess the immunogenicity and safety of the Infanrix hexa booster dose given at 11-18 months of age to infants who received primary vaccination at 6-14 weeks. All infants in this booster study were born to pregnant women who participated in the study 116945 [DTPA (BOOSTRIX)-047] and having received the full primary vaccination series as per protocol requirement in study 201330 [DTPA (BOOSTRIX)-048.