Conditions: Hepatitis C, Chronic
Keywords: VX-950 INCIVEK INCIVO
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 239
Healthy volunteers: no

Brief summary:
The purpose of this study is to evaluate if a 12-week total regimen of telaprevir in combination with pegylated interferon alfa 2a (Peg-IFN-alfa-2a) and ribavirin (RBV) (T12/PR12) is safe and effective in subjects who have the interleukin-28B (IL28B) CC genotype. The subjects enrolled in this study will have chronic hepatitis C virus (HCV) infection and will not have cirrhosis of the liver.

Detailed description:

Arms:
arm 1: Telaprevir 1125 milligram (mg) tablet twice 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 12 weeks. Only subjects who completed initial 12 week of telaprevir and Peg-IFN/RBV and met rapid viral response (RVR, undetectable Hepatitis C Virus \[HCV\] Ribonucleic Acid \[RNA\] at Week 4) criteria, were randomized in this group, as planned, and did not receive any further treatment. arm 2: Telaprevir 1125 mg tablet twice 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. Only subjects who completed initial 12 week of telaprevir and Peg-IFN/RBV and met RVR criteria, were randomized in this group, as planned. arm 3: Telaprevir 1125 mg tablet twice 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. Only subjects with RVR who permanently discontinued telaprevir, Peg-IFN-alfa-2a, or RBV treatment before Week 12, and had extended rapid viral response (eRVR, undetectable HCV RNA at Weeks 4 and 12), were included in this group, as planned. arm 4: Telaprevir 1125 mg tablet twice 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. Only subjects with no RVR or no RVR assessment, and subjects with RVR who permanently discontinued telaprevir, Peg-IFN-alfa-2a, or RBV treatment before Week 12, who did not have eRVR or eRVR assessment, were included in this group, as planned.

Interventions: intervention 1: Telaprevir intervention 2: Pegylated Interferon Alfa-2a intervention 3: Ribavirin
Intervention descriptions: intervention 1: Tablet intervention 2: Subcutaneous Injection intervention 3: Tablet

Protocol document: