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Effect of Telaprevir in triple therapy for chronic hepatitis C patients on Intrahepatic immunological Mechanisms

To evaluate in detail the functionality of immune cells in the liver and blood in chronic HCV patients before, during and after treatment with telaprevir, pegylated-IFN-alfa and ribavirin.

A Phase I, open-label, randomized, 2-panel, sequential treatment study in healthy subjects to investigate the potential pharmacokinetic interactions between multiple doses of phenytoin or carbamazepine and telaprevir at steady-state

OBJECTIVES AND HYPOTHESISPrimary ObjectivesThe primary objectives are to determine- the effect of steady-state telaprevir 750 mg every 8 hours (q8h) on the multiple dose pharmacokinetics ofphenytoin 200 mg every 12 hours (q12h) in healthy subjects,…

The role of paroxetine in patients taking telaprevir-based HCV therapy: lack of a drug-drug interaction? (ROLEX)

Primary objective:To show that concomitant use of telaprevir (1125 mg BID) does not lead to a relevant decrease (> 20%) in the paroxetine parameter AUC0-24h compared to paroxetine alone.Secondary objectives:To determine the ratio of the…

A Randomized Study of Stopping Treatment at 24 Weeks or Continuing Treatment to 48 Weeks in Treatment-Naïve Subjects with Genotype 1 Chronic Hepatitis C who Achieve an Extended Rapid Viral Response (eRVR) While Receiving Telaprevir, Peginterferon Alfa2a (Pegasys®) and Ribavirin (Copegus®)

Primary:To estimate the difference in SVR rates between T12/PR24 and T12/PR48 treatment regimens in subjects who achieve eRVR.Secondary:To evaluate the safety of telaprevir in combination with Peg-IFN-alfa-2a and RBV in treatment-naïve subjects with…

An open-label, single-arm, roll-over trial of telaprevir in combination with pegylated interferon alfa-2a (Pegasys®) and ribavirin (Copegus®) for subjects from the control group of the VX-950-TiDP24-C216 trial who failed therapy for virologic reasons

The objectives are:- to provide access to telaprevir for subjects with chronic HCV genotype 1 infection who wererandomized to the control group in the C216 trial and who failed therapy for virologicreasons;- to evaluate efficacy, safety, and…

A phase I, open-label, randomized crossover trial in 24 healthy subjects to investigate the effect of steady-state esomeprazole on the pharmacokinetics of a single dose of telaprevir.

This study involves research and the objective of this study is to investigate the effect of esomeprzole on the single-dose pharmacokinetics (i.e., how a drug moves through the body) of telaprevir. And to obtain additional data regarding the safety…

A Rollover Protocol of Telaprevir (VX-950) in Combination with Peginterferon Alfa-2a (Pegasys®) and Ribavirin (Copegus®) in Subjects Enrolled in the Control Group (Group A) of Study VX06-950-106 Who did not Achieve or Maintain an Undetectable HCV RNA Level Through Sustained Viral Response

To provide access to a telaprevir-based treatment to subjects of the Control Group (Group A) of Study VX06-950-106 who stopped treatment due to inadequate response to treatment (according to treatment stopping rules). Safety, tolerability, and HCV…

A Phase I, open-label, randomized, 2-way crossover trial in 2 parallel panels of 20 healthy subjects each to investigate the pharmacokinetic interaction between lopinavir/ritonavir (LPV/rtv) and telaprevir, and between atazanavir/ritonavir (ATV/rtv) and telaprevir, all at steady-state.

The first aim of the study is to investigate the effect of telaprevir on the concentration of LPV/rtv and ATV/rtv in the blood and the effect of LPV/rtv and of ATV/rtv the concentration of telaprevir in the blood.The second aim is to investigate the…

A Phase IIa randomized, open-label study of telaprevir (VX-950) administered every 12 or every 8 hours in combination with either Peg-IFN alfa2a (Pegasys®) and ribavirin (Copegus®) or Peg-IFN alfa2b (PegIntron®) and ribavirin (Rebetol®) in treatment naive subjects with chronic genotype 1 hepatitis C infection.

The objective of this trial is to explore the efficacy, safety, tolerability, pharmacokinetics, and pharmacokinetic-pharmacodynamic relationships of telaprevir when administered as 750 mg q8h or 1125 mg q12h in combination with Peg IFN alfa2a (…