Active clinical trials for "Hepatitis B"

In Taiwan, HBV infection is endemic in the adult population. With the westernization of eating habit and lifestyle, metabolic syndrome and related non-alcoholic fatty liver diseases (NAFLD, newly proposed as metabolic dysfunction associated fatty liver diseases, MAFLD) has become another important health issue. It is therefore common to encounter subjects with concurrent MAFLD and HBV infection in HBV endemic countries. This project will study the clinical data of patients with concurrent MAFLD and HBV, and aim to explore the impact of exercise intervention on the hepatic fatty infiltration, alteration of gut microbiota and HBV replication status in this group of patients. The research strategies will include (1) improving fatty liver and metabolic syndrome in subjects with concurrent MAFLD and HBV; and (2) exploring the changes of HBV replication and intestinal microflora in patients with concurrent HBV and MAFLD after exercise intervention.

The purpose of this study is to evaluate the efficacy and safety of undiluted intravenous infusion of I.V.-Hepabig inj. in post-liver transplant patients

This study aims to investigate the efficacy and safety of avatrombopag for treating thrombocytopenia in hepatitis b virus related acute-on-chronic liver failure patients receiving artificial liver support system treatment.

Immunoprophylaxis with two hepatitis B vaccinations following the hepatitis B immune globulin (HBIg) and hepatitis B vaccine at birth is largely effective in protecting infants from hepatitis B virus (HBV) infection. However, hepatitis B infection due to immunoprophylaxis failure often occurs in approximately 10% of infants who are born to highly viremic mothers with HBeAg-positive. Maternal HBV DNA > 200,000 IU/mL is the major independent risk for mother-to-child transmission (MTCT). A recent randomized controlled trial has shown that Tenofovir Disoproxil Fumarate (TDF) use during the third trimester of pregnancy could safely reduce the rate of MTCT with few adverse effects when combined with the administration of the standard immunoprophylaxis to the infants. However, HBIg is expensive and not available in many developing countries, resulting approximately 30% of infant infection when they received only HBV vaccination. The present study aims to investigate if highly viremic mothers who are treated with TDF from the second trimester to delivery in combination of infant's standard series of HBV vaccinations (omission of HBIg) have a comparable MTCT rates, when compared to those of mothers who receive TDF at the third trimester in combination of infant's standard HBV vaccinations and a birth dose of HBIg.

The main objective of this study is to compare the immunogenicity of the hepatitis B component in children vaccinated with (I) two doses of Infanrix-hexa administered at 2 and 12 months of age versus (II) one dose of Infanrix-hexa and one dose of Twinrix administered respectively at 2 and 12 months of age versus (III) three doses of Infanrix-hexa administered at 2, 4 and 18 months of age (comparator).

Tenofovir alafenamide (TAF) has been approved to prevent HBV reactivation for HBsAg-positive cancer patients receiving chemotherapy. However, the real-world effectiveness and safety of TAF for cancer patients was lacing. Therefore, we conduct a prospective single arm study to evaluate the efficacy and safety of TAF as a prophylactic antiviral agent for HBsAg-positive cancer patients receiving chemotherapy.

This study is a randomized, prospective, comparative study of the effectiveness of prophylactic entecavir treatment for HBV reactivation in past HBV infected patients (HBsAg-, HBcIgG+) with hematopoietic stem cell transplantation.

Prospective, cross-sectional, adaptative study to evaluate the clinical performance of the In-Vitro Diagnostics Medical Device MagIA IBC (a Multiplex Point-of-Care Test for the detection of HIV, HBV and HCV) in detecting anti-HIV antibodies (HIV-Ab), anti-HCV antibodies (HCV-Ab), and HBs antigens (HBs-Ag) in serum, plasma, venous blood and capillary blood. If not prescribed for the patient care, blood drawings, and finger pricks will be performed on the patient for the purpose of the clinical study. The Study includes a Technical Adjustment Phase (to identify optimized acquisition parameters and to define the decision threshold for the diagnostic) followed by a Validation Phase (to validate the concordance between the matrices and to evaluate the Specificity and the Sensibility of the diagnostics)

Hepatitis B virus (HBV) infection is an important global health problem, and the WHO adopted a strategy to eliminate HBV infection as a public health threat by the year 2030. In order to eliminate, it is critical to prevent the mother-to-child transmission (MTCT) of hepatitis B. Since 2009, the WHO recommends to administer hepatitis B vaccine within 24 hours of birth to prevent MTCT.2 However, in Africa, the majority of countries provide hepatitis B vaccine as a combined vaccine (pentavalent or hexavalent) at the age of 6-10-14 weeks or 8-12-16 weeks after the birth, and only 10 sub-Saharan African countries integrated birth dose vaccine into their national immunization program. This is because, the GAVI, the Vaccine Alliance, does not support monovalent hepatitis B vaccine, and also about half of babies in Africa are born at home without the immediate access to vaccination. Moreover, the evidence base to support this WHO's recommendation to start immunizing immediately at birth, rather than later at 6-8 weeks of life, is not strong. Through a multidisciplinary approach comprising epidemiological, anthropological and economic components, the primary objective of the study is to measure the impact of the introduction of birth dose hepatitis B vaccine into the infant immunization program in Burkina Faso. Expected results will be to develop strong evidence base (effectiveness & cost-effectiveness) to recommend the integration of birth dose hepatitis B vaccine into the current vaccination schedule (8-12-16 weeks as a combined vaccine), to facilitate the Burkinabé Government to include the birth dose hepatitis B vaccine in their national vaccination program, to inform other African countries which have not yet integrated the birth dose hepatitis B vaccine in their national program and to imply whether additional strategy (e.g., maternal screening and antiviral therapy during pregnancy) might be necessary in order to eliminate the risk of mother-to-child transmission of hepatitis B.

The purpose of this study is to evaluate the efficacy and safety of Tenofovir alafenamide (TAF) for prevention of mother-to-child transmission of hepatitis B virus among pregnant women with high level HBV DNA.