Active clinical trials for "Hepatitis A"

The purpose of this study is to evaluate the effect of serum hepatitis B virus (HBV) DNA level on intrahepatic recurrence in locally treatable hepatocellular carcinomas (HCCs) related with HBV.

The purpose of this study is to evaluate the safety and efficacy of nitazoxanide-peginterferon and nitazoxanide-peginterferon-ribavirin combination regimens compared to the standard of care (peginterferon-ribavirin) in treating chronic hepatitis C genotype 4. The study will also evaluate the effect of the studied treatment regimens on end of treatment virologic response, ALT normalization and safety parameters.

Genotype 4 hepatitis C virus is the cause of approximately 20% of the 170 million cases of chronic hepatitis C in the world. Although rare in western nations, genotype 4 is the most common variant of the hepatitis C virus in Egypt and is also found throughout Africa and the Middle East. Early reports on the treatment of patients with genotype 4 chronic hepatitis C with interferon-alfa (IFN)-alfa monotherapy indicate poor rates of sustained viral response (SVR). With the introduction of ribavirin combination therapy and with pegylation of the IFN alfa molecule, however, response rates have improved dramatically, and current clinical trial data indicate that SVR rates between 43 and 79% are attainable in genotype 4 patients who are receiving pegylated IFN alfa plus ribavirin for 48 weeks. Clinical advances to optimize treatment for each patient have also been made, and tailored treatment options are now being developed that are comparable to the treatment approaches for genotype 1, 2, and 3 patients. A treatment duration of between 36 and 48 weeks appears to be optimal for most patients with chronic hepatitis C genotype 4.The aim of this study is to assess the efficacy and safety of pegylated interferon alpha 2a in patients with chronic hepatitis C genotype 4 in comparison to a historical cohort of patients treated with pegylated interferon alpha 2b

The purpose of this study is to determine if nitazoxanide in combination with peginterferon alfa-2a and ribavirin is safe and effective in treating chronic hepatitis C in patients that have previously failed to respond to treatment with peginterferon and ribavirin.

The aim of this study is to investigate the efficacy and safety of an insulin-sensitizer (Actos) added to a standard Pegasys/Copegus combination therapy of chronic hepatitis C in patients who have previously failed a pegylated-interferon-alpha / ribavirin combination without the insulin sensitizer. The primary endpoint is the initial virological response (level of HCV RNA in serum) as evaluated after 12 weeks of triple therapy.

The study vaccine has been developed for use in pre-dialysis/ haemodialysis patients and immuno-compromised individuals who could have or had a sub-optimal response following vaccination for hepatitis B with currently available commercial vaccines (target population). This study will aim to confirm in a clinical setting the consistency of production of three lots of the vaccine.

This study will evaluate the efficacy and safety of PEGASYS plus ribavirin in male patients with hemophilia A and chronic hepatitis C. All patients will receive PEGASYS 180 micrograms s.c. weekly plus ribavirin 1000-1200mg p.o. daily (depending on body weight) for 48 weeks. Following treatment there will be a 24 week period of treatment-free follow-up. The anticipated time on study treatment is 3-12 months, and the target sample size is <100 individuals.

Chronic hepatitis C virus (HCV) infection is common in dialysis patients. Interferon (IFN)-based treatment for chronic hepatitis C has been the mainstay therapy in immunocompetent patients. Two meta-analyses evaluating the efficacy and safety of conventional IFN alfa monotherapy showed that the sustained virologic response (SVR) rates were 37% and 33%, respectively; and the corresponding dropout rates were 17% and 29.6%, respectively. The efficacy and safety of pegylated IFN alfa-2a and 2b in treating dialysis patients showed conflicting results, with a more favorable outcome of patients treated with pegylated IFN alfa-2a (135-180 μg/week: SVR 33-75%, well tolerated) than those treated with pegylated IFN alfa-2b (0.5-1.0 μg/week: SVR 12.5%, poorly tolerated), Currently, IFN-based therapy to treatment HCV infection should be initiated in dialysis stages, because the use of IFN in RT patients harbors high risks of acute graft rejection,and have low response rates under the concomitant use of immunosuppressive agents. Ribavirin, which has been used in combination with IFN to treat chronic hepatitis C in the general patients and achieve a higher SVR rate than IFN monotherapy, is considered contraindicated in dialysis patients with chronic hepatitis C due to the risk of severe hemolytic anemia. However, some pilot studies evaluating combined conventional IFN alfa plus low dose ribavirin (170-300 mg/day) showed SVR rates of 17%-66% after 24-48 weeks of treatment.In addition, a recent study including 6 patients with combination of pegylated IFN alfa plus low dose ribavirin also showed a SVR rate of 50%. Although dialysis patients have a higher SVR rate to conventional IFN or pegylated IFN monotherapy than patients with normal renal function for HCV therapy. More than half of these patients are relapsers or non-responders to IFN monotherapy. Retreatment of HCV-patients with normal renal function by combined pegylated IFN alfa plus ribavirin who fail to response to IFN monotherapy has achieved a SVR rate of 28%. Based on the long-term favorable outcome in dialysis patients who eradicate HCV, the aim of the study is to evaluate the efficacy and safety of retreatment by pegylated IFN alfa-2a plus low dose ribavirin in dialysis patients who fail to achieve HCV eradication by conventional or pegylated IFN alfa.

The purpose of this study is to investigate the safety and efficacy of the use of ELAD in patients with diagnosed Acute On Chronic Hepatitis, including Acute Alcoholic Hepatitis.

The current Standard of Care (SOC) for chronic HCV infection, which is pegylated interferon-alfa as combination therapy with ribavirin for 24-48 weeks of treatment, is effective in only part of the patients and is often associated with severe adverse effects leading to discontinuation of treatment and dose modifications. A number of compounds with direct activity are currently under clinical development, incl. BI 201335. BI 201335 works by preventing the Hepatitis C virus from replicating by binding to the HCV protease (enzyme). The main purpose of this clinical trial with BI 201335 is to see how well BI 201335 works and how safe BI 201335 is to use daily in combination with PegIFN and RBV in HCV infected patients