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Hepatitis C, Chronic clinical trials

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NCT ID: NCT00493805 Terminated - Insulin Resistance Clinical Trials

Study of Response in Chronic Hepatitis C (CHC) Participants Genotype 1 With Insulin Resistance and Prolonged Treatment Duration in Late Responders (P04823/MK-4031-303)

Start date: April 2007
Phase: Phase 4
Study type: Interventional

This is a Phase 3b/4, prospective, open-label, randomized, multicenter study of peginterferon alfa-2b plus ribavirin in participants with chronic hepatitis C, genotype 1. The study consists of two parts: (1) a noninterventional arm (HOMA IR <= 2) and (2) an interventional arm (HOMA IR > 2), where HOMA IR is the insulin resistance index for the participants calculated by fasting insulin (uU/mL) x [fasting glucose (mmol/L)/22.5]. Participants in the noninterventional arm are treated according to the European labeling and response rates are evaluated at Month 1 (optional), 3, 6, 12, and follow up. Participants in the interventional arm are treated with PEG-Intron 1.5 ug/kg (subcutaneous) once weekly plus weight-based REBETOL 800-1400 mg (oral capsules) daily for a variable period depending on their response at Week 12: (1) HCV-RNA positive with < 2-log drop in viral load, treatment will be discontinued; (2) HCV-RNA positive with >= 2-log drop in viral load; participants will be randomized (1:1) to Group A (stop treatment at Week 48) or Group B (stop treatment at Week 72); and (3) HCV-RNA negative, treatment will be changed to be according to the European labeling and response rates will be evaluated at Month 6, 12, and follow up. All participants will go on with their treatment after Week 12 until the results of the HCV polymerase chain reaction (PCR) are available (maximum of 4 weeks).

NCT ID: NCT00441584 Terminated - Clinical trials for Hepatitis C, Chronic

The Effects of PegIntron Plus Rebetol in Subjects With Chronic Hepatitis C Not Responding to Pegasys (Study P03833)

Start date: July 2005
Phase: Phase 3
Study type: Interventional

This is an uncontrolled, non-randomized, open-label, multinational study designed to evaluate the efficacy and safety of PegIntron plus Rebetol in subjects with chronic hepatitis C. The study is designed to determine the proportion of chronic hepatitis C genotype 1 subjects who did not respond to previous treatment with Pegasys 180µg QW plus ribavirin, that will achieve sustained virological response (SVR) when treated with PegIntron plus Rebetol.

NCT ID: NCT00439959 Terminated - Hepatitis C Clinical Trials

Monotherapy Versus Placebo Over 14 or 17 Days in Healthy and Hepatitis C Infected Adults

Start date: October 2006
Phase: Phase 1
Study type: Interventional

This study represents the first administration of GSK625433 in humans. The study is designed to evaluate initial safety and tolerability in healthy adults as well as anti-viral activity in Hepatitis C(HVC) infected adults. The way the human body processes GSK625433 will also be investigated.

NCT ID: NCT00423800 Terminated - Clinical trials for Hepatitis C, Chronic

Efficacy and Safety of 24 vs 48 Weeks of Pegetron® (Peginterferon Alfa-2b + Ribavirin) in Naïve Genotype 1 Hepatitis C (Study P05016)(TERMINATED)

Start date: December 2006
Phase: Phase 3
Study type: Interventional

This is a Phase IIIB randomized, controlled, multi-centre, open-label study of 24 versus 48 weeks therapy with Pegetron® (peginterferon alfa-2b + ribavirin) at standard doses in naïve Hepatitis C Virus (HCV) genotype 1 high viral load (HVL) participants who are Hepatitis C Virus-Ribonucleic Acid (HCV-RNA) negative at Week 4. HVL will be defined as HCV-RNA of >600,000 IU/mL prior to the initiation of therapy. Participants with genotype 1 baseline HVL prescribed Pegetron® (peginterferon and ribavirin) in the usual manner in accordance with the marketing authorization and who are viral negative at Week 4 will be randomized at Week 8 to receive a total of 24 or 48 weeks of therapy. Participants will be required to have their baseline and Week-12 viral load analyzed by the same local laboratory using the standard of care test used by the site. Qualitative testing at Week 4, 8, 16-20, 24, and 48 may be conducted either by local laboratory or a central laboratory identified by the sponsor using an assay specified by the sponsor. No additional interventions outside of the clinic's standard of care and the conditions of the Canadian product monograph for Pegetron® will be applied to participants.

NCT ID: NCT00401947 Terminated - HCV Infection Clinical Trials

A Study to Investigate the Safety, Tolerability, Pharmacokinetics, and Antiviral Activity of ACH-0137171 in Participants With Chronic Hepatitis C Infection

Start date: November 30, 2006
Phase: Phase 2
Study type: Interventional

The purpose of this study was to investigate the safety, tolerability, pharmacokinetics (PK), and antiviral activity of multiple doses of ACH-0137171 in participants with chronic hepatitis C virus (HCV) infection.

NCT ID: NCT00375895 Terminated - Chronic Hepatitis C Clinical Trials

Switch From Tacrolimus to Cyclosporin in the Treatment of Recurrent Hepatitis C After Liver Transplantation

Start date: June 2006
Phase: Phase 3
Study type: Interventional

In France, 50% of hepatitis C virus carriers develop chronic clinical hepatitis, which may lead to cirrhosis and liver transplantation. Transplant infection by hepatitis C virus is constant after transplantation and recurrence causes chronic liver disease in 50 to 80% of cases. The aim of this study is to assess the efficacy of cyclosporin on C virological response. Patients included in the Transpeg 1 study and non-responder or with a recurrent disease will be switched from their tacrolimus therapy to cyclosporin, in association with a 1 year peginterferon alfa-2a / ribavirin bitherapy. Efficacy will be assessed by the percentage of patients with a negative qualitative PCR after 19 months of cyclosporin treatment.

NCT ID: NCT00305383 Terminated - Clinical trials for Hepatitis C, Chronic

Viral Kinetic Study With Viramidine in Therapy-Naive Patients With Chronic Hepatitis C

Start date: November 2005
Phase: Phase 2
Study type: Interventional

The purpose of this study is to examine the rapid virologic response (RVR) at combination therapy (CT) Week 4 between groups receiving a standard combination peginterferon alfa-2b/viramidine dosing regimen versus a cohort that receives 4 weeks of viramidine monotherapy prior to the start of peginterferon alfa-2b/viramidine combination therapy.

NCT ID: NCT00296972 Terminated - HIV Infections Clinical Trials

Tolerability of Peginterferon Plus Ribavirin for Chronic Hepatitis C and HIV for Patients Receiving Antiretroviral Medication vs Not Receiving Antiretroviral Medication

Start date: July 2005
Phase: Phase 3
Study type: Interventional

The main purpose of this study is to compare the safety, effectiveness and tolerability of using Pegasys with Copegus in people who have both the hepatitis C virus (HCV) genotype 1 and HIV who continue taking HAART (highly active antiretroviral therapy) to those who discontinue taking HAART. Canadian guidelines recommend that both HIV and HCV should not be treated at the same time as the medications needed to treat these two diseases may interact and that which disease to treat first is dependent on the CD4 count. In this study, the CD4 count must be over 350 cells and one must be stable on HAART before starting the study medication Pegasys in combination with Copegus.

NCT ID: NCT00279565 Terminated - Clinical trials for Hepatitis C, Chronic

Buprenorphine Versus Methadone Maintenance in Hepatitis C Patients Receiving Peg-Intron and Rebetol (Study P04279)(TERMINATED)

Start date: August 2005
Phase: Phase 4
Study type: Interventional

This randomized, single-center, controlled study is designed to evaluate the safety, tolerability, and efficacy of treatment with Peg-Intron with Rebetol in methadone or buprenorphine maintenance patients with hepatitis C.

NCT ID: NCT00277758 Terminated - Hepatitis C Clinical Trials

Safety Study of Low Dose Interleukin 2 (IL-2) Plus PEG-IFN/RBV In Chronic Hepatitis C Virus Genotype I

Start date: March 2004
Phase: Phase 1
Study type: Interventional

This is a treatment study trial, in which we will assess the safety and tolerability of daily dose IL-2, as monotherapy for 12 weeks, followed by IL2 in combination with PEG-IFN and RBV for 48 weeks in the treatment of chronic Hepatitis C.