Active clinical trials for "Hepatitis A"

Evaluate safety, tolerability, and antiviral response of ACH-0141625 compared to standard of care in hepatitis C virus (HCV)-positive participants.

The purpose of this study is to evaluate the safety and tolerability of TMC435 along with pegylated interferon alpha-2a (PegIFNα-2a) and ribavirin (RBV) triple therapy in hepatitis C virus genotype-1 infected subjects, co-infected with human immunodeficiency virus-type 1, and to evaluate the number of patients with sustained virologic response (SVR) at 12 weeks after the planned end of treatment.

The purpose of this study is to evaluate the safety, tolerability, and efficacy of vaniprevir (300 mg twice daily) given in combination with pegylated interferon alfa-2b (peg-IFN) and ribavirin (RBV) in Japanese participants with chronic hepatitis C (CHC) genotype (GT) 1 who have not responded to previous treatment. The primary efficacy objective is to estimate efficacy of vaniprevir, peg-IFN and RBV for 24 weeks as assessed by the percentage of participants achieving undetectable Hepatitis C Virus ribonucleic acid (HCV RNA) 24 weeks after completion of all study therapy (Sustained Viral Response 24 [SVR24]).

Background: Chronic hepatitis D is a severe disease of the liver caused by infection with the hepatitis D virus. The hepatitis D virus can only infect a person who also has hepatitis B; therefore, people with delta hepatitis have both hepatitis B and hepatitis D virus infection. Most people with hepatitis D eventually develop cirrhosis, which causes scarring and damage to the liver. There is currently no effective treatment for chronic hepatitis D. Lonafarnib is a drug that was originally designed to treat different types of cancer. It may be able to prevent the hepatitis D virus from reproducing itself. However, it has not been tested on people with hepatitis D. Researchers want to study different doses of lonafarnib to see how they affect virus levels and other symptoms of hepatitis D. Objectives: - To test the safety and effectiveness of lonafarnib as a treatment for chronic hepatitis D. Eligibility: - Individuals at least 18 years of age who have chronic hepatitis D. Design: Participants will be screened with a medical history and physical exam. They will have blood and urine tests, eye exams, and imaging studies of the liver and gall bladder. A liver biopsy may also be performed. Participants will receive either lonafarnib or placebo twice a day for 28 days. For the first 3 days, participants will stay in the hospital to have frequent blood tests. Participants will have four more clinic visits (on days 7, 14, 21, and 28) for blood and urine tests. Eye exams and heart function tests will also be given. Men may be asked to provide sperm samples for further testing. After the 28 days of treatment, participants will stop taking the drug or placebo. They will have regular followup visits for up to 6 months after stopping treatment....

The primary purpose of this study is to evaluate the efficacy of adefovir (ADV) in preventing de novo Hepatitis B in patients who receive Hepatitis B core antibody (HBcAb) positive grafts but who are not Hepatitis B Surface antigen (HBsAg) positive prior to transplant (Hepatitis B naive patients). The second objective is to evaluate the efficacy of accelerated vaccination with Hepatitis B in inducing innate immunity, thereby obviating the need for life-long antiviral therapy.

The purpose of this study is to evaluate the safety and efficacy of a locally produced 40KD pegylated interferon alpha-2a (Pegaferon) in patients with hepatitis C. 100 patients will be treated using standard guidelines for hepatitis C. Response to treatment and side effects will be recorded.

This study examines the safety, tolerability, and immunogenicity of a single dose of MDX-1106 in patients with active hepatitis C genotype 1 or mixed hepatitis C genotype infection.

The purpose of this study is to test the safety, tolerability, and efficacy of 4 regimens of Vaniprevir + Peg-IFN and Ribavirin as compared to Placebo (PBO) + Peg-IFN/RBV. The primary hypotheses are that Vaniprevir is well tolerated, and that Vaniprevir 600 mg twice daily (b.i.d.) is superior to the control regimen for the percentage of non-cirrhotic (NC) participants achieving undetectable HCV ribonucleic acid (RNA) 24 weeks after the end of study therapy (SVR24).

Current treatment of chronic liver disease relies upon removing the primary insult to the liver (e.g., alcohol) or treating the underlying viral infection (HBV, HCV, etc.). However, in the case of hepatitis C, a significant number of individuals will not clear the virus with current approved standard antiviral therapy, leaving them no options to manage their hepatic fibrosis, which can progress to cirrhosis and ultimately hepatocellular carcinoma (HCC). Fuzheng Huayu has been used in numerous studies in China and has been found to have a satisfactory prophylaxis effect on the chronic liver injury and formed liver fibrosis in rats and humans. In addition, it enhances the degradation of liver fibrosis and protects hepatocytes from injury and death, manifesting as decreasing of ALT and AST, and enhancement of albumin level. In addition, preliminary studies indicate that the Fuzheng Huayu has a good safety and tolerability profile with promising efficacy. The number of patients failing Interferon based therapy (i.e. not achieving SVR) is increasing. There are no approved standard of care treatment options for this population nor for patients who are intolerant or unwilling to receive Interferon; thus they are at higher risk for the progression of fibrosis. Moreover, there are no approved therapies to treat hepatic fibrosis, but basic research is exploring the pathophysiological mechanisms. Fuzheng Huayu is easy to administer, with a good safety and efficacy profile against fibrosis. Therefore, the investigators propose to further study the safety and efficacy profile of Fuzheng Huayu in a randomized, placebo-controlled, double blind study in Chronic Hepatitis C patients with hepatic fibrosis who have failed prior anti-HCV therapy or are intolerant or refuse Interferon based therapy. The primary objective of this study is to establish the safety and efficacy of Fuzheng Huayu treatment in chronic hepatitis C subjects who have failed prior anti-HCV therapy or cannot receive or refused Interferon based therapy in improving liver fibrosis.

The aim of therapy for the treatment of chronic hepatitis B virus (HBV) is to maintain suppression of viral replication to prevent the emergence of complications, which requires long-term therapy. Durable suppression of viral replication is achieved in the treatment of chronic viral diseases by preventing of the emergence of drug-resistant mutations. The clinical guidelines for the management of lamivudine resistant patients are variable. Some recommend switching to another agent without cross-resistance, while others recommend adding on another agent without cross-resistance. Limited clinical data exists to demonstrate whether tenofovir disoproxil fumarate (tenofovir DF; TDF) is an effective monotherapy for lamivudine resistant patients or if it should be used as part of a combination therapy regimen. This study is designed to evaluate the effectiveness, safety, and tolerability of tenofovir DF monotherapy versus emtricitabine (FTC)/tenofovir DF combination therapy in participants with chronic HBV with lamivudine resistance (presence of the rtM204I/V mutation with or without the rtL180M mutation) over a 240-week period. Participants in this study must be receiving lamivudine treatment at the time of enrollment.