Active clinical trials for "Hepatitis, Chronic"

The purpose of this study is to examine the effects of valacyclovir in patients who have chronic hepatitis C, antibodies to herpes simplex type 1 infection but do not have antibodies to herpes simplex type 2 infection. Herpes simplex type 1 infection commonly causes cold sores or fever blisters, also known as herpes labialis, but most persons do not have any symptoms at all. Valacyclovir is a medication which is approved by the Food and Drug administration to treat herpes labialis. Valacyclovir has not been approved to treat chronic hepatitis C infection. The study will take 16 weeks. Participants will be assigned to take either the study drug, valacyclovir, or a sugar pill that looks exactly like valacyclovir. The researchers and patients will not know which medication they are receiving. Study visits will occur every two weeks and will take approximately 30-45 minutes. All study visits will occur at the G.V. Sonny Montgomery VA Medical Center in Jackson, Mississippi.

The purpose of this study is to evaluate the efficacy and safety of Peginterferon alfa-2b (40KD, Y shape, the followings will refer as Ypeginterferon alfa-2b for short), at a dose of 180μg/week, in combination with Ribavirin in Chinese chronic hepatitis C patients. The study will first group patients into two sub-study, genotype 2/3 and non-genotype 2/3, depending on the HCV genotype that infected. In the genotype 2/3 sub-study about 219 patients will be enrolled, and eligible patients are randomized at 2:1 ratio into Ypeginterferon alfa-2b group or active control group (Pegasys), receiving 24 weeks of interferon therapy and oral daily Ribavirin at a dose of 800mg/d. In the non-genotype 2/3 sub-study about 507 patients will be enrolled, and eligible patients are randomized at 2:1 ratio into Ypeginterferon alfa-2b group or active control group (Pegasys), receiving 48 weeks of interferon therapy and oral daily Ribavirin 1000-1200mg/day , basing on body weight. All patients will be followed for 24 weeks after the end of therapy.

Background: - Hepatitis C is a liver disease caused by the hepatitis C virus. It is the most common cause of serious liver disease in the United States. Many people have few if any symptoms. It can lead to cirrhosis, which can cause liver failure and cancer. Researchers want to study how a medicine called chlorcyclizine works in patients with hepatitis C. They want to see if it can be used to treat hepatitis C alone or when used with the standard hepatitis C treatment drug ribavirin. Objectives: - To see if chlorcyclizine can be used to treat hepatitis C alone or in combination with the drug ribavirin. Eligibility: - Adults with chronic hepatitis C who either have never been treated for it or have relapsed after prior treatment. Design: Participants will be screened with medical history, physical exam, blood and urine tests, and a questionnaire. They will also have an ultrasound of their abdomen and electrocardiogram. Some of these tests will be repeated throughout the study. Participants will spend 3 days as an inpatient to be monitored while starting study drug. They will be assigned randomly to a group and will begin taking the study drug. Blood will be taken frequently. Group I will take the study drug twice a day for 28 days. Group II will take the study drug twice a day and ribavirin twice a day for 28 days. Participants will visit the clinic every 7 days for 28 days. After participants stop taking the study drug, they will have 5 follow-up visits over 3 months.

The purpose of this study is to assess the efficacy and safety of grazoprevir (MK-5172) 100 mg in combination with elbasvir (MK-8742) 50 mg in the treatment of chronic hepatitis C virus (HCV) in participants who are co-infected with human immunodeficiency virus (HIV). The primary hypothesis is that the percentage of participants who receive grazoprevir + elbasvir and achieve Sustained Virologic Response after 12 weeks of therapy (SVR12) will be greater than 70%.

This is a two-part study of grazoprevir (MK-5172) + elbasvir (MK-8742) in Japanese participants with chronic hepatitis C virus (HCV) genotype 1 (GT1). Part I is a dose-finding study; in Part II, participants will be randomly assigned to receive grazoprevir at the dose determined in Part I in combination with elbasvir. The primary study hypothesis is that the percentage of treatment-naïve participants in the Immediate Treatment Arm of Part II who achieve sustained viral response at 12 weeks after the end of all treatment (SVR12) will be greater than the reference rate of 75%. A separate study arm for cirrhotic participants will also be included in Part II; these participants will receive grazoprevir at the determined dose in combination with elbasvir.

This open-label study will evaluate safety, pharmacokinetics and efficacy of a 12 or 24-week regimen of ombitasvir/paritaprevir/ritonavir and dasabuvir with or without ribavirin in HCV-genotype 1-infected subjects with an Estimated Glomerular Filtration Rate (eGFR) <30, including those on hemodialysis or peritoneal dialysis.

This phase 2b study will evaluate the efficacy and safety of 16 and 24 weeks of response-guided duration of therapy with GS-9190 and GS-9256 in combination with Peginterferon Alfa-2a (Pegasys®) and Ribavirin (Copegus®). Additionally, the efficacy and safety of 24 weeks of GS-9256 in combination with Peginterferon Alfa-2a (Pegasys®) and Ribavirin (Copegus®) will be evaluated.

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 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 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.