Active clinical trials for "Hepatitis B"

Uptake, adherence, and completion of vaccination among HIV-infected adults were low, and their immune function and immune response to hepatitis B vaccination were also suboptimal, indicating that the current practice of hepatitis B vaccination can't protect HIV-infected adults from HBV infection. And the persistence of immunity induced by hepatitis B vaccination remains a challenge. This is a randomized, open-label trial, conducted among HIV-infected adults with drug rehabilitation. This study will compare the immunogenicity, immune persistence, and safety of three intramuscular 20µg and 60µg recombinant hepatitis B vaccines at months 0, 1, and 6 among HIV-infected adults.

This is an online randomized controlled trial (RCT) comparing men who have sex with men (MSM) exposed to a crowdsourced intervention to MSM who did not receive the intervention to determine the effect on Hepatitis B Virus (HBV) and Hepatitis C Virus (HCV) testing. Participants will be randomly assigned in a 1:1 ratio to intervention or control using a computer-based allocation system. Participants will be assessed for primary and secondary outcomes four weeks after randomization.

Mother-to-child transmission (MTCT) is the most common mode of perpetuating chronic hepatitis B virus (HBV) infection in endemic countries. Many studies have demonstrated antepartum anti-viral therapy (AVT) is a advisable option to reduce mother-to-child transmission and the risk of vaccination breakthrough in infants who received passive-active immunoprophylaxis. However, several controversies over antiviral treatment have not been resolved, that is, optimal duration, effect of postpartum therapy, and risk of postpartum alanine aminotransferase (ALT) flare after withdrawal. Will the risk of postpartum hepatitis flares increase after short-term AVT in late pregnancy for maternal HBV infection is discontinued? Is there any correlation between postpartum hepatitis flares and withdrawal time? Will the proportion of postpartum flares be reduced if extending the duration of AVT after delivery? There is an urgent need in this area. This study mainly investigated the safety of antiviral therapy in preventing HBV mother-to-child transmission in pregnant women after discontinuation.

This study aims to assess and confirm the adequate immunogenicity and safety profile of the Sanofi Pasteur's DTaP-Hep B-IPV-PRP-T fully liquid combined hexavalent vaccine administered in HIV-exposed uninfected infants and in HIV-exposed infected infants. The primary objectives of the study are: To evaluate the immunogenicity of the study vaccine 1 month after the 3-dose primary series in HIV-exposed infected and in HIV-exposed uninfected infants. To describe the persistence of all antibodies before receipt of the booster dose in HIV-exposed infected and in HIV-exposed uninfected infants. To evaluate the immunogenicity of the study vaccine 1 month after the booster dose in HIV-exposed infected and in HIV-exposed uninfected infants. The secondary objectives of the study are: To describe the safety profile after each and all doses of the study vaccine administered as a 3-dose infant primary series in HIV-exposed infected and in HIV-exposed uninfected infants. To describe the safety profile of the study vaccine administered as a booster in HIV-exposed infected and in HIV-exposed uninfected infants.

This is a single-center, randomized, active-controlled, parallel-group, open-label, phase I study to evaluate safety and immunogenicity of single injection of LBVD or Eupenta co-administered with Imovax Polio in healthy adults.

This is a Phase 2a, multi-center, randomized, double-blind, placebo-controlled study evaluating the safety, efficacy, and pharmacokinetics (PK) of AL-3778 in combination with Peg-IFN in subjects with Hepatitis B e antigen (HBeAg) positive CHB virus infection who are treatment-naïve. The study will consist of a screening phase , a double-blind treatment phase followed by treatment with Peg-IFN alone, and a post-treatment follow-up phase. Approximately 30 subjects to complete the study. Eligible subjects will be randomized into 2 treatment arms in a 2:1 ratio (active:placebo) to receive one of the following treatments: Arm A: Peg-IFN plus AL-3778 (N=20) Arm B: Peg-IFN plus matching placebo (N=10)

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.

In the current study, the investigators study the efficacy of the HBAI20 vaccine to induce seroprotection in registered non-responders (adults who were previously vaccinated with the HBVaxPro-10μg but did not achieve seroprotection). The study will further assess the safety of the HBAI20 vaccine in comparison with HBVaxPro-10μg.

The purpose of this study is to determine whether an investigational drug DCB-BO1202 is effective and safe in the treatment of liver fibrosis in HBV patients having experienced intermediate stage hepatocellular carcinoma (HCC)

Patients with chronic HBV infection will receive ARC-520 in combination with entecavir or tenofovir and be evaluated for safety and efficacy.