View clinical trials related to Hepatitis C.
Filter by:Compare the effectiveness of telaprevir (VX-950) in combination with Pegylated Interferon Alfa 2a (Peg-IFN-alfa-2a) with and without Ribavirin (RBV) in reducing plasma hepatitis C virus (HCV) ribonucleic acid (RNA) levels
Objective: Determine if maximum doses of rosuvastatin are safe in patients infected with hepatitis C and if the so called pleiotropic effects of rosuvastatin cause a decrease in the HCV viral load. Primary study parameters: 1. to which extend causes rosuvastatin serious side effects like rhabdomyolysis and hepatotoxicity in patients chronically infected with hepatitis C? 2. does treatment with rosuvastatin in HCV infected patients lead to lower HCV-RNA viral load? 3. Is a decrease in LDL correlated to a decrease in HCV-RNA load?
Chronic hepatitis C virus (HCV) infection is associated with an increased risk for the development of type 2 diabetes and HCV infection itself may promote insulin resistance, irrespective of the severity of liver disease. Insulin resistance seems to be genotype specific and may play a role in fibrogenesis in chronic hepatitis C. In an “in vitro” model, increased levels of insulin may promote increased HCV replication. RATIONALE Decreased insulin resistance and reduced hyperinsulinemia may facilitate the efficacy of anti-viral drugs on HCV replication.
This study will explore why severe scarring of the liver (cirrhosis) develops so rapidly in hepatitis C-infected patients who have had a liver transplant and possibly in kidney transplant patients as well. The hepatitis C virus (HCV) can cause cirrhosis in about 20 percent of infected persons. Generally, it takes 20 years or more for cirrhosis to develop. After liver transplantation, however, patients may develop cirrhosis in as little as 5 years. Cirrhosis does not develop as rapidly in kidney transplant patients, but it may develop faster than in people who do not undergo transplantation. The study will look at the possible role of immune-suppressing medications given to liver and kidney transplant patients in increasing the severity of hepatitis C infection and in speeding the cirrhotic process. Patients 18 years of age and older with chronic HCV infection who require a liver transplant for end-stage liver disease or a kidney transplant for kidney failure may be eligible for this study. Liver transplant patients are recruited from the Inova Fairfax Liver Transplant Center in Fairfax, Virginia, and from the Georgetown University Medical Center Liver Transplant Institute in Washington, D.C. Kidney transplant patients are recruited from the Transplantation Branch of the National Institute of Diabetes and Digestive and Kidney Diseases. Participants undergo the following procedures: - Regular care: As part of their regular transplant-related treatment, patients have a medical history, physical examinations and blood draws before their transplant and on regularly scheduled visits after the transplant. - Blood draws for research: Special blood tests are done to measure the immune response to HCV. They measure the amount of HCV in the blood, the number of HCV strains present and how they change over time and the HCV antibodies in the blood. - Liver biopsies: This procedure is done at 3 months, 1 year, 3 years and 5 years after the transplant to determine the extent of scarring of the liver and to study the immune responses within the liver, the proportion of liver cells infected with HCV and the presence of scar-producing cells. The biopsy is done during a 1- to 2-day inpatient hospital stay. The patients are given a sedative medication through a vein before the procedure. The skin over the biopsy site is numbed and the biopsy needle is passed rapidly into and out of the liver to collect a small sample of liver tissue for study. - Apheresis: This procedure is done to collect a large number of white blood cells needed to test the immune response to the HCV. On the day before each liver biopsy, blood is drawn through a needle from a vein in one arm and run through a machine that separates and collects the white cells. The red cells and plasma are returned to the patient's body through the same needle or a second needle in the other arm.
This is a phase 2, randomized, open-label study comparing the safety, antiviral activity, and pharmacokinetics of HCV-796 administered in combination with peginterferon alfa 2B (Peg-Intron) plus concomitant Rebetol vs. Peg-Intron plus Rebetol in Hepatitis C Virus (HCV) genotype 1-infected subjects who are either naive to treatment or who have previously failed treatment (non-responders).
The purpose of this study is to compare the sustained virological response rate at 24 weeks after the end of experimental treatment (induction and 72 weeks) to that of standard 48 weeks treatment with PEG-inteferon alfa-2b and ribavirin in patients with chronic hepatitis C previous unresponsive to interferon alfa monotherapy or interferon alfa/ribavirin combination therapy.
Chronic hepatitis C may relapse in simple chronic hepatitis C patients who initially obtained sustained virologic responses. Although the HCV SVR could be maintained in around 90%, the remaining 10% of these patients may develop hepatitis C relapse during follow-up. Therefore, it is important to follow up the long-term of these patients with dual chronic hepatitis B and C. From another aspect, for the treatment of chronic hepatitis B, the virologic and serologic responses may also not be durable. Alternatively, previous studies suggested that the therapeutic efficacy might not be seen in the study period, and incremental response might occur during long-term follow-up. Therefore it is also important to clarify the long-term outcome of treatment in this dually infected population. Evaluation of the long term effects of treatment with peginterferon alfa-2a plus ribavirin for patients with chronic hepatitis C/ hepatitis B co-Infection and chronic hepatitis C in the original study ML17862 is important. This present protocol is thus to assess whether the HCV SVR is sustained and to assess the durability of the HBV virologic and serologic responses or any incremental response during a 5-year follow-up period, including six months after end of the therapy in the original study and an additional 4 and half years in this project (5 years overall follow-up after the end of treatment). Specifically, we wish to assess the (1) sustained virologic response (SVR) of HCV in both populations, (2) incidence of HBsAg loss and HBsAg seroconversion (HBsAg loss and appearance of anti-HBs) in dually infected population, (3) ALT normalization or flare off-treatment during both populations, (4) reductions of HCV RNA from the original baseline levels in the two patient populations, and (5) reduction of serum HBV DNA off-treatment in the dually infected population.
This 2-arm study will compare the efficacy and safety of treatment with Pegasys (180 µg weekly) plus Copegus (800 mg daily) and Pegasys (180 µg weekly) plus Copegus (1000-1200 mg daily) in interferon-naive patients with CHC genotype 1 co-infected with HIV-1. Treatment will be administered for 48 weeks, and this will be followed by 24 treatment-free weeks. The anticipated time on study treatment is 3-12 months, and the target sample size is 100-500 individuals.
Phase I/II trial of KRN7000 in patients with chronic hepatitis C. Study objectives: To evaluate and compare the safety and tolerability of 3 ascending doses of a-GalCer. The primary efficacy parameter: HCV-RNA response at the end of treatment. Secondary efficacy parameter: Serum ALT response. Further objectives of the study are to evaluate the effect of a-GalCer on serum cytokines IFNg and TNFa and on iNKT cells. Number of dose levels: 3 Investigational product: KRN7000 Route of administration: intravenous Dosages and frequency: 0.1, 1, 10 mcg/kg, monthly injection, 3 times (day 0, day 28 and day 56)
The objective of this study is to better understand the influence of insulin resistance upon treatment response in hepatitis C virus treated with PEG Intron and Rebetol.