Active clinical trials for "Hepatitis B"

The purpose of this clinical research study is to assess the safety effectiveness of entecavir, as compared to lamivudine, in the treatment of adults with chronic hepatitis B infection who are hepatitis B e antigen positive.

Chronic hepatitis B is a disease of the liver caused by the hepatitis B virus. It affects nearly 1 million Americans. Approximately 25% of patients with chronic hepatitis B will develop liver cirrhosis and 5% of patients will develop liver cancer. Presently, two medications have been shown effective in the treatment of hepatitis B: lamivudine and alpha interferon. Alpha interferon (an antiviral drug that acts through the immune system) is given by injection once daily or three times a week for four to six months. Lamivudine (also known as 3-thiacytidine: 3TC) is an antiviral medication given as a pill once a day for twelve months. These treatments have been known to provide long-term improvement in one third of patients receiving them. In previous research, the drug lamivudine was shown to stop the growth of the hepatitis B virus and to lead marked decreases in the levels of hepatitis B virus and to improvements in the disease in 50 to 70% of patients. However, once lamivudine therapy was discontinued the virus returned to levels noted before the therapy began. In those studies lamivudine was given for 3 to 12 months then discontinued. This study will investigate the safety and effectiveness of long-term therapy with lamivudine. This study will select 60 patients diagnosed with hepatitis B. After a thorough medical examination and liver biopsy, subjects will be given lamivudine. The drug will be taken by mouth in tablet form (100 mg) once a day for up to 5 years. Subjects will undergo regular check-ups and after 1 year of therapy be admitted to the Clinical Center for another medical examination and liver biopsy to assess progress. Patients who have benefitted from the therapy will continue taking the medication for up to 5 years. A third liver biopsy will be done during the last year of treatment. The effectiveness of lamivudine will be determined by whether levels of hepatitis B virus decrease in the blood, whether liver enzymes improve, and whether inflammation and scarring decreases in the liver biopsies.

The changes in liver function, body mass index, controlled attenuation parameters, liver stiffness and HBV-DNA at different time points in each group before and after treatment were counted to explore the clinical efficacy of Ganshuang granules combined with tenofovir in the treatment of CHB complicated with NAFLD.

The primary aim of the study is to accomplish two major tasks: the first is to determine the frequency of intra-familial transmission of HBV; the second is trying to explore the potential risk factors of such a transmission .As a secondary aim, immunologic status of the household contacts vaccinated for hepatitis B will be evaluated to assess the efficacy of hepatitis B vaccination and its role in prevention of intra-familial transmission of HBV

The investigator aimed to prospectively study the effect of the hepatic fibrosis on quantifying hepatic steatosis using ultrasound attenuation imaging (ATI value) in patients with chronic hepatitis B.

Assessment of the effectiveness of intralesional and intramuscular hepatitis B vaccine in treatment of multiple common warts.

This prospective cohort study is initiated to evaluate the compliance improvement to the standardized follow-up and clinical management in the population of compensatory hepatitis B cirrhosis with a mobile health application (APP). Patients were enrolled and divided into APP self-management group (APP only ) and APP intelligent-management group (APP and online interaction). The compliance to the standardized follow-up and clinical management (every six months) under the two clinical management modes would be evaluated and compared with the history data extracted from the platform of China Registry of Hepatitis B (CR-Hep B).

Establishment and validation of the non-invasive model to predict antiviral therapy in the gray zone of chronic hepatitis B

To explore the effective dose and safety of the effect of hydronidone and entecavir on hepatic fibrosis in chronic viral hepatitis B.

This study evaluates the safety and immunogenicity of FP-02.2, a new therapeutic Hepatitis B vaccine, administered as an add-on therapy to entecavir or tenofovir.