View clinical trials related to Hepatitis B.
Filter by:The objective of this study is to identify immunological mechanisms that contribute to normalization of liver inflammation in chronic hepatitis B (CHB) patients starting the antiviral nucleoside analogue, Tenofovir alafenamide (TAF).
This study is a single-group, multi-center and prospective clinical study designed to assess the efficacy and safety of TAF in blocking mother-to-child transmission of hepatitis B virus.Pregnant women whose HBsAg and HBeAg are positive are included in the study.Eligible hepatitis B pregnant women are given TAF antiviral therapy at 24-28 weeks of gestation to block mother-to-child transmission and followed up during pregnancy and after delivery.The study will be initiated with approval by the central ethics committee.Subjects will start screening after signing the informed consent form. Those who meet the criteria will start taking TAF (25mg, oral, 1/day) at 24-28 weeks of gestation until one month after delivery.At that time, chronic hepatitis B carrier will stop taking antiviral therapy, and patients with chronic hepatitis B decide whether to continue the therapy according to the patient's condition.The babies born are immunized according to the national standard immunization program,, that is, 100 IU of hepatitis B immunoglobulin (HBIG) and 10 μg/0.5 ml of hepatitis B vaccine are given within 12 hours after birth. And the same dose of hepatitis B vaccine is given at 1 month and 6 months of age.
Chronic hepatitis B is a global public health problem, with nearly 700,000 deaths each year because of hepatitis B-related diseases. Recent studies have found that some patients who have used nucleot(s)ide analogues(NAs) for some period can achieve higher hepatitis B surface antigen(HBsAg) clearance rate(which is called clinical cure or functional cure) by using pegylated interferon. Patients who achieve clinical cure will further reduce liver inflammation, fibrosis and risks of liver cirrhosis and cancer in the future. This study was initiated in May 2018 and plans to recruit 30,000 eligible patients. The enrollment conditions are as follows: 1. according with the diagnosis of chronic hepatitis B in the guideline of China in 2015; 2.18-60 years old; 3. more than 1 year history of NAs therapy with HBsAg ≤1500 IU/ml, negative hepatitis e antigen and hepatitis B virus DNA<100 IU/ml; 4. no contraindications of interferon. For the above patients, pegylated interferon was used for 1-2 years(combined with NAs for at least 3 months).The primary goal of this study is to find out the optimal treatment for clinical cure.
All chronic hepatitis B (CHB) patients were diagnosed and treated in the liver disease department of the Hepatology Center of Beijing Ditan Hospital affiliated to Capital Medical University and those who received antiviral therapy (interferon and nucleoside analogues) reached HBsAg<100 IU/ml. The enrolled subjects were divided into the following six observation cohorts: 1) CHB patients in the immunological control period, without any clinical treatment intervention; 2) After interferon therapy, HBsAg<100 IU/ml, continued interferon therapy; 3) After interferon therapy, HBsAg<100 IU/ml, stopped interferon treatment; 4) After interferon therapy, HBsAg<100 IU/ml, sequential nucleoside analog treatment; 5) After nucleoside analogue treatment, HBsAg<100 IU/ml, sequential interferon treatment; 6) After treated with nucleoside analogues, HBsAg<100 IU/ml, continuing the nucleoside analog treatment. The follow-up observation period was 96 weeks under non-planned intervention. During the observation period, HBV indicators and biochemical indicators, serum AFP and liver imaging (liver ultrasound) were examined regularly. The main evaluation index was the incidence of HBsAg disappearance during the observation period. Secondary evaluation indicators: the rate of HBV DNA turning positive, the rate of HBeAg turning positive and hepatitis incidence. To observe the inactive carrier status of low HBsAg content and the incidence of HBsAg disappearance, clinical outcomes and influencing factors in patients with CHB under different antiviral interventions.
The PRINCESSE study will implement a comprehensive package of services in sexual and reproductive health for female sex workers in the region of San Pedro in Cote d'Ivoire, including screening, prevention and treatment for HIV, viral hepatitis B, sexually transmitted infections and family planning. All services will be available in mobiles clinics operating on prostitution sites and organized for a chronic follow-up of participants.
The objective of this study is to investigate the evidence of dopaminergic toxicity causing by HCV infection using 18F-FDOPA PET and MRS as imaging biomarkers.
The study aims to demonstrate that whether treatment of nucleoside （acid）analogues (NAs) plus pegylated interferon (Peg IFN) α-2b for those NAs treated, low level of HBsAg, hepatitis B related compensatory cirrhosis patients will result in higher HBsAg clearance rate and reduce the risk of liver cancer. The investigators plan to enroll about 84 hepatitis B related compensatory cirrhosis patients, who have received NAs treatment more than 1 year with the level of HBsAg <1000IU/ml. These participants will be devided into 2 groups. Group A will receive the treatment of NAs plus Peg IFNα-2b. Group B will be treated with NAs as before enrollment. The participants in both groups will be followed up for 96 weeks. The primary endpoint is to compare the clearance rate of HBsAg between two groups. The secondary endpoint includes: (1) comparing the incidence of liver cancer during the 96 weeks follow-up, (2) comparing adverse side effects between the 2 groups. (3) comparing the virological and biochemical responses between the 2 groups.
Compared to TDF, peginterferon alfa 2a may has more therapeutic efficacy in hepatitis B surface antigen or e antigen seroconversion and anti-tumor occurrence in chronic hepatitis b patients. We design this study to compare the effectiveness and safety between the combination therapy of TDF and peg-IFN with TDF alone in NAs experienced patients with HBV related liver fibrosis. Especially the improvement of liver fibrosis and the occurrence of long-term end-stage liver disease such as cirrhosis, liver cancer, etc.
To compare the efficacy and renal safety of tenofovir alafenamide (TAF) versus entecavir (ETV) in the chronic hepatitis B patients.
This study is intended to retrospectively collect HBV-infected pregnant women and non-HBV-infected pregnant women who have been born in IVF in the investigators' hospital, collect pregnant women's data during pregnancy, newborn birth data, and hepatitis B virus in July after birth of newborns born to HBV-infected pregnant women. Infection, explore the impact of HBV infection on IVF outcomes and whether IVF operations increase the risk of mother-to-child transmission of HBV.