View clinical trials related to Hepatitis B.
Filter by:There are about 240 million chronic hepatitis B virus (HBV) infected people in the world, and about 2%-5% of compensated cirrhosis patients progress to decompensated cirrhosis patients every year. Studies have shown that the 5-year survival rate of decompensated cirrhosis is only 14-35%, and the quality of life and prognosis of patients are poor. Reversing or delaying the process of cirrhosis and reducing the development of compensated cirrhosis to decompensated cirrhosis is one of the effective methods for liver disease treatment. MSCs are mainly derived from bone marrow, but bone marrow mesenchymal stem cells have some shortcomings, such as cumbersome sampling, and the proliferation and differentiation ability of bone marrow mesenchymal stem cells decrease obviously with the age of donors, which is not conducive to cell therapy. Umbilical cord has many advantages, such as wide source, convenient collection, small immune rejection, and small ethical controversy, which makes it a hot spot in stem cell research and has a wider prospect in cell therapy. This clinical study will explore the efficacy and safety of human umbilical cord-derived mesenchymal stem cells in the treatment of hepatitis B virus-infected patients with compensated cirrhosis.
This is an open-label, multicenter, randomized, active control study, comparing P1101 monotherapy to entecavir monotherapy in patients with HBeAg-negative chronic hepatitis B under long-term nucleos(t)ide analogue therapy.
This is a multicenter, randomized, double-blind, placebo-controlled phase IIa study, designed to evaluate the efficacy and safety of ZM-H1505R in combination with Baraclude versus Baraclude monotherapy in adult CHB subjects with HBV DNA <2000 IU/mL but ≥ 50 IU/mL and who have received ETV (0.5 mg, once daily [QD)] monotherapy for at least 12 months. The study is planned to enroll 90 adult CHB subjects who have received ETV monotherapy for at least 12 months and are still receiving ETV monotherapy (0.5 mg, QD) continuously. Eligible subjects will be randomized in a 1:1:1 ratio into 3 treatment groups. Both HBeAg positive and negative subjects will be included. There will be 20 HBeAg positive subjects and 10 HBeAg negative subjects in each treatment group. After 48 weeks of treatment with the corresponding regimen, subjects will continue to take Baraclude 0.5 mg QD, as a monotherapy for a 12-week follow-up period for observation of efficacy and safety of ZM-H1505R.
Mother-to-child transmission (MTCT) is still the main transmission route of HBV in high-endemic areas, such as China, sub-Saharan Africa, etc. Some infants born of mothers with high HBV DNA load (≥2×10^5 IU/ml) are still infected with HBV even if these infants receive the combined immunization on time. Therefore, guidelines including AASLD and EASL recommend that pregnant women with high HBV DNA load should take antiviral drugs (tenofovir disoproxil fumarate or telbivudine) to reduce MTCT of HBV from gestation 24-28 weeks. However, side effects of TDF on infants are reported. For example, neutropenia and the decrease of bone mineral density are found in early age infants who are ever exposed to TDF during their fetal life. Tenofovir alafenamide (TAF), a new prodrug of tenofovir (TFV), has a higher antiviral potency, a higher peripheral blood mononuclear cell (PBMC) intracellular tenofovir diphosphate (TFV pp) level and a lower plasma TFV concentration. As the successor of TDF, the dose of TAF that is took orally every day is approximately 1/10 of TDF. TAF has a much lower risk of kidney toxicity and has almost no effect on the bone mineral density. TAF has been approved and recommended as the first-line drug to treat patients with chronic hepatitis B (CHB) by AASLD, EASL, etc. However, there are relatively few data of TAF on pregnancies with high HBV DNA load. It is urgently to clarify the safety and efficacy of TAF on interrupting MTCT of HBV in pregnancies with high HBV DNA load. In the present study, the investigators enroll middle/late pregnancies with high HBV DNA load(≥2×10^5 IU/ml). The participants are randomly divided into two groups. Then the participants are treated with TAF or TDF respectively. All enrolled participants are followed-up for 2 years. Objectives of the present study are as follows: A. To clarify safety and efficacy of TAF on interrupting MTCT of HBV in middle/late pregnancies with high HBV DNA load. B. To clarify effects of TAF on obstetric complications in middle/late pregnancies with CHB. C. To clarify effects of TAF on birth defects of infants born in mothers with CHB. D. To clarify the change of virology and biochemistry indexes in women with CHB during pregnancy and postpartum. E. To clarify effects of TAF treatment on participants. F. To clarify growth parameters of the infants exposed to TAF during their fetal life. G. To clarify the pharmacokinetics of TAF in pregnant populations.
A multicenter, randomized controlled trial design was used to select patients with chronic hepatitis B in the immune control phase (i.e. HBsAg positive, HBeAg negative, normal ALT and HBsAg≤1000IU/ml, HBV DNA≤2000IU/ml) to enter this study, and to compare the feasibility, effectiveness and safety treated with Pegylated Interferon α2b Continuous therapy or Pulse therapy in immune-controlled chronic hepatitis B patients.
This phase 2 trial aims to evaluate the efficacy of entecavir prophylacxis for hepatitis B virus (HBV) reactivation that continues until 6 months after completing CD20 monoclonal antibody therapy in patients with CD20-positive B-cell lymphomas and resolved hepatitis B (negative hepatitis B surface antigen, positive hepatitis B core antibody).
HBV infection is a dynamic process with complex interactions between virus replication and the host's immune response. The appearance of anti-HBs after HBV infection generally indicates recovery and immunity to HBV1 infection. However, there are several published studies that describe the coexistence of the marker of chronic infection (HBsAg +) and the marker of functional cure (HBsAc +). There are contradictory studies on whether the coexistence of HBsAg/HBsAc implies a different clinical course.
The most common mode of HBV transmission is materno-fetal transmission mainly during labor. This study aims to estimate the seroprevalence of HBV infection and the possible risk factors of HBV acquisition in pregnant women in Upper Egypt and to evaluate the predictive value of HBeAg and quantitative HBsAg as surrogate markers for high viremia in pregnant women.
This Phase 1/ 2a study is a multicenter study to evaluate the safety, tolerability and efficacy of SCG101 in subjects with hepatitis B virus-related hepatocellular carcinoma
The objective of this study is to determine the safety and efficacy of transplanting lungs from hepatitis B virus (HBV) nucleic acid test positive (NAT+) donors into HBV vaccinated HBV surface antibody positive (sAb+) lung transplant candidates, who will then be treated with Hepatitis B Immune Globulin (HBIG) and entecavir, tenofovir disoproxil, or tenofovir alafenamide.