Conditions: Chronic Hepatitis C
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 263
Healthy volunteers: no

Brief summary:
Study the effectiveness of telaprevir (VX-950) in combination with Pegylated Interferon Alfa 2a (Peg-IFN-alfa-2a) and Ribavirin (RBV) in reducing plasma hepatitis C virus (HCV) ribonucleic acid (RNA) levels

Detailed description:

Arms:
arm 1: Placebo (PBO) matched to telaprevir tablet orally thrice daily for 12 weeks in combination with pegylated interferon alfa 2a (Peg-IFN-alfa-2a) 180 microgram per week (mcg/week) subcutaneous injection and ribavirin (RBV) tablet orally twice daily at a dose of 1000 milligram per day (mg/day) for subjects weighing less than (\<) 75 kilogram (kg) and 1200 mg/day for subjects weighing greater than or equal to (\>=) 75 kg, for 48 weeks. arm 2: Single loading dose of telaprevir 1250 mg tablet orally on Day 1 followed by 750 mg telaprevir tablet thrice daily for 12 weeks in combination with Peg-IFN-alfa-2a 180 mcg/week subcutaneous injection and RBV tablet orally twice daily at a dose of 1000 mg/day for subjects weighing \<75 kg and 1200 mg/day for subjects weighing \>=75 kg, for 48 weeks. arm 3: Single loading dose of telaprevir 1250 mg tablet orally on Day 1 followed by 750 mg telaprevir tablet thrice daily for 12 weeks in combination with Peg-IFN-alfa-2a 180 mcg/week subcutaneous injection and RBV tablet orally twice daily at a dose of 1000 mg/day for subjects weighing \<75 kg and 1200 mg/day for subjects weighing \>=75 kg, for 24 weeks. arm 4: Single loading dose of telaprevir 1250 mg tablet orally on Day 1 followed by 750 mg telaprevir tablet thrice daily in combination with Peg-IFN-alfa-2a 180 mcg/week subcutaneous injection and RBV tablet orally twice daily at a dose of 1000 mg/day for subjects weighing \<75 kg and 1200 mg/day for subjects weighing \>=75 kg, for 12 weeks.

Interventions: intervention 1: Telaprevir intervention 2: Ribavirin intervention 3: Pegylated Interferon Alfa 2a intervention 4: Placebo
Intervention descriptions: intervention 1: tablet intervention 2: tablet intervention 3: Solution for injection intervention 4: matching placebo tablet

Protocol document: