Active clinical trials for "Hepatitis C"

The purpose of this study is to evaluate the efficacy, tolerability, and safety of 12-weeks of treatment with TMC435 plus pegylated interferon alfa-2a (PegIFNα-2a) and ribavirin (RBV) in previously untreated adult participants with genotype 1 or genotype 4 chronic Hepatitis C Virus (HCV) infection.

The purpose of this study is to determine if concentration-controlled ribavirin dosing can achieve a targeted level of plasma exposures and if it appears safe and effective compared with standard weight-based ribavirin dosing. Forty, previously treatment-naive participants with genotype 1 disease will be randomized to receive concentration-guided or standard weight-based ribavirin. Peginterferon alfa 2a,ribavirin, and telaprevir will be provided through the study.

HCV002TV is a Phase I study to ascertain the safety and immunogenicity of a novel vaccine against Hepatitis C virus (HCV) in chronically infected patients. The vaccine is based on the sequential delivery, by intramuscular route, of two different adenoviral vectors, of chimpanzee and human origin respectively, bearing the same genetic information for HCV antigens (NS region). The two recombinant vaccine vectors, called AdCh3NSmut and Ad6NSmut, are weakened and unable to multiply within the body; they are designed to induce an immune response against HCV proteins. AdCh3NSmut and Ad6NSmut are being used in the ongoing HCV001 study in healthy volunteers with very good safety and immunogenicity results. HCV002TV is a dose-escalation study; the AdCh3NSmut is administered as priming vaccination and Ad6NSmut as boosting vaccination. The trial includes: Arm A, in which vaccinated patients are into Interferon-ribavirin therapy (the gold standard therapy for hepatitis C); Arm B, in which vaccinated patients are not into therapy.

To identify a shorter duration of antiviral therapy (12 or 16 weeks) for the combination of daclatasvir with pegylated interferon alfa-2a and ribavirin.

The purpose of this study is to investigate the effect of steady-state concentrations of TMC435 on the steady-state pharmacokinetics of TMC278 or Tenofovir , and vice versa. Steady state is a term which means that the drug has been given long enough so that the plasma concentrations will remain the same with each subsequent dose. TMC435 is being investigated for the treatment of chronic hepatitis C virus (HCV) infection. TMC278 and Tenofovir are two antiretroviral drugs for treatment of human deficiency virus (HIV) infection. Pharmacokinetics (pk) means how the drug is absorbed into the bloodstream, distributed in the body and eliminated from the body.

The purpose of this study is to compare in healthy volunteers levels of TMC435 in the blood circulation after intake of 2 new capsule formulations with the level of TMC435 in the blood circulation after intake of the capsule formulation used in the Phase IIb studies.

The purpose of this study it to evaluate the safety and tolerability of VX-985 in HCV subjects. This study will also evaluate the antiviral activity and pharmacokinetic profile of VX-985.

This study is designed to evaluate the potential for a pharmacokinetic (PK) drug-drug interaction between IDX320 and IDX184 and to assess the safety and tolerability when the two drugs are administered in combination in healthy participants.

The purpose of this study is to investigate the effect of steady-state concentrations of TMC435 (administered once a day) on the single-dose pharmacokinetics of the immunosuppressants cyclosporine and tacrolimus in healthy participants. Cyclosporine and tacrolimus are immunosuppressants used to prevent transplant rejection and may therefore potentially be coadministered with TMC435 in patients infected with hepatitis C virus that undergo liver transplantation. We will also explore the short-term safety and tolerability following coadministration of TMC435 at steady-state and (1) cyclosporine or (2) tacrolimus after single dosing in healthy participants. Steady-state is a term that means that the drug has been given long enough so that the plasma concentrations will remain the same with each subsequent dose. Pharmacokinetics (PK) means how the drug is absorbed into the bloodstream, distributed in the body and eliminated from the body.

The purpose of this study is to compare the effectiveness of BMS-790052 (Daclatasvir) and Telaprevir when given in combination with Peginterferon alfa-2a and Ribavirin in genotype 1b patients