Active clinical trials for "Hepatitis A"

Silymarin (Legalon), also known as milk thistle, is an alternative medicine commonly found in health food and vitamin stores. People with liver disease sometimes use silymarin because it is thought to have liver protecting effects; however, this benefit has not been proven. The purpose of this research study is to determine the effectiveness of silymarin and assess the safety of different silymarin doses in patients with varying severity of liver disease compared to a placebo (lactose pill). Eligible subjects will be randomized to treatment with placebo or one of two dosages of Legalon® 420 mg or 700 mg administered orally thrice daily. Investigators and subjects will be masked to treatment assignment. The study design includes a screening period during which patients will undergo full medical evaluation to verify protocol eligibility and a treatment period of 24 weeks during which time clinic visits and laboratory studies will be performed every 2-4 weeks to monitor for safety and efficacy of therapy. Subjects will continue to be followed for an additional 12 weeks after the completion of study medication to monitor for adverse events and investigate post-treatment outcomes. Participation in this research study requires the subject to travel to the clinic for at least 10 visits so recruitment will be limited to a geographically restricted area around participating clinical centers.

First-in-humans, phase 1, dose-escalation study with 4 dose levels of single-agent IMO-2125.

The purpose is to evaluate efficacy and safety of therapeutic hepatitis B virus (HBV) vaccine (mimogen-based)) Joint entecavir treatment in chronic hepatitis B patients.

The purpose of this study is to evaluate the safety, tolerability, and efficacy of vaniprevir given in combination with pegylated interferon alfa-2b (peg-IFN) and ribavirin (RBV) versus treatment with peg-IFN and RBV alone in Japanese treatment-naïve participants with chronic hepatitis C (CHC) genotype (GT)1. The primary efficacy hypothesis is that the percentage of participants achieving sustained virologic response 24 weeks after completion of all study therapy (SVR24) in at least one of the vaniprevir arms is superior to the percentage of participants achieving SVR24 in the control arm.

This is a multi-centre, double blind, double dummy, randomised, controlled study to evaluate the efficacy and safety of TDF 300mg QD versus ADV 10mg QD in Chinese subjects with CHB. This study is designed to demonstrate the superiority of TDF 300mg QD over ADV 10mg QD in treating Chinese subjects with CHB (hepatitis B e antigen [HBeAg] positive subjects and HBeAg negative subjects). It will also provide long-term efficacy and safety data (up to 240 weeks) for TDF 300 mg administered once daily.

The main purpose of this study is to determine the safety and tolerability of multiple dosing of miravirsen in subjects infected with chronic hepatitis C. Secondary purpose includes assessment of pharmacokinetics of miravirsen and assessment of miravirsen's effect on HCV viral titer.

The purpose of this study is to evaluate the efficacy and safety of TMC435 in combination with peginterferon alfa-2b and ribavirin in chronic genotype 1 hepatitis C virus (HCV)-infected participants who are treatment-naive or treatment-experienced (prior relapser or non-responder to Interferon-based therapy) in Japan.

The purpose of this study is to assess the safety and tolerability of TMC647055 both after increasing single oral doses from 100 mg up to maximum 3000 mg in fed conditions, and after multiple oral doses in fed conditions at increasing dose levels administered for 6 days, as well as to assess the pharmacokinetics of TMC647055 after increasing single oral doses from 100 mg up to maximum 3000 mg in fed conditions, and after multiple oral doses in fed conditions at increasing dose levels administered for 6 days and to assess the effect of food on a single oral dose of TMC647055 at one dose level, all in healthy participants. In addition, the safety, tolerability, pharmacokinetics and the antiviral activity of TMC647055 will be determined after 6 days of consecutive dosing and of TMC647055 and TMC435 after 10 days of co-administration in chronic hepatitis C virus infected patients. Pharmacokinetics means how the drug is absorbed into the bloodstream, distributed in the body and eliminated from the body. TMC647055 is being investigated for the treatment of chronic hepatitis C infection.

The purpose of this study was to evaluate the efficacy (and safety) of antiviral therapy in patients with chronic hepatitis C after liver transplantation. The only approved drugs for treatment of hepatitis C are pegylated interferon and ribavirin.

This study explores the efficacy, safety and tolerability of tenofovir DF (TDF) 300 mg once daily monotherapy versus the combination of emtricitabine 200 mg plus tenofovir DF 300 mg (FTC/TDF) once daily in subjects currently being treated with adefovir dipivoxil (Hepsera) for chronic hepatitis B who have persistent viral replication (detectable hepatitis B virus deoxyribonucleic acid [HBV DNA]). Subjects with confirmed (within 4 weeks) plasma HBV DNA ≥ 400 copies/mL during double blind treatment at Week 24 or any time thereafter have the option of receiving 12 weeks of open-label FTC/TDF which may be continued through the end of the 168-week treatment period if there is a virologic response (HBV DNA < 400 copies/mL). Alternatively, subjects with confirmed HBV DNA < 400 copies/mL at or any time after Week 24 of double-blind treatment may continue blinded therapy up to Week 168 at the discretion of the investigator. If, in the investigator's opinion, it is felt that continued blinded treatment beyond 24 weeks in subjects with confirmed HBV DNA ≥ 400 copies/mL is not beneficial, the subject may discontinue the study and begin commercially available HBV therapy rather than initiate open-label FTC/TDF.