Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: A Phase 3 Safety and Efficacy Study of Boceprevir in Combination With Peginterferon Alfa-2a and Ribavirin in Subjects With Chronic Hepatitis C Genotype 1 Who Failed Prior Treatment With Peginterferon/Ribavirin
Brief Summary: Based on previous experience with peginterferon alfa-2b/ribavirin in combination with boceprevir, the combination with peginterferon alfa-

2a/ribavirin and boceprevir is expected to be safe and well tolerated. Given the wide utilization of both peginterferons and the clear benefit of the

addition of boceprevir to peginterferon alfa-2b/ribavirin, it is important to demonstrate the safety and efficacy of boceprevir in combination with

peginterferon alfa-2a/ribavirin.


Options:
A: Arm Label: Arm 1 (Control Arm); Type: PLACEBO_COMPARATOR; Interventions: Other: Placebo, Biological: Peginterferon alfa-2a, Drug: Ribavirin | Arm Label: Arm 2 (Boceprevir Arm); Type: EXPERIMENTAL; Interventions: Drug: Boceprevir, Biological: Peginterferon alfa-2a, Drug: Ribavirin | Intervention Type: DRUG; Name: Boceprevir; Assigned to Arm(s): Arm 2 (Boceprevir Arm) | Intervention Type: OTHER; Name: Placebo; Assigned to Arm(s): Arm 1 (Control Arm) | Intervention Type: BIOLOGICAL; Name: Peginterferon alfa-2a; Assigned to Arm(s): Arm 1 (Control Arm), Arm 2 (Boceprevir Arm) | Intervention Type: DRUG; Name: Ribavirin; Assigned to Arm(s): Arm 1 (Control Arm), Arm 2 (Boceprevir Arm)
B: Arm Label: BI201335 12W; Type: EXPERIMENTAL; Interventions: Drug: PegIFN/RBV, Drug: BI201335 | Arm Label: BI 201335 24W; Type: EXPERIMENTAL; Interventions: Drug: BI201335 24W, Drug: PegIFN/RBV | Arm Label: BI 201335 24 W; Type: EXPERIMENTAL; Interventions: Drug: PegIFN/RBV, Drug: Bi 201335 | Intervention Type: DRUG; Name: PegIFN/RBV; Assigned to Arm(s): BI 201335 24 W | Intervention Type: DRUG; Name: PegIFN/RBV; Assigned to Arm(s): BI201335 12W | Intervention Type: DRUG; Name: BI201335; Assigned to Arm(s): BI201335 12W | Intervention Type: DRUG; Name: BI201335 24W; Assigned to Arm(s): BI 201335 24W | Intervention Type: DRUG; Name: PegIFN/RBV; Assigned to Arm(s): BI 201335 24W | Intervention Type: DRUG; Name: Bi 201335; Assigned to Arm(s): BI 201335 24 W
C: Arm Label: Immediate Treatment Group; Type: EXPERIMENTAL; Interventions: Drug: Grazoprevir 100mg / Elbasvir 50 mg FDC | Arm Label: Deferred Treatment Group; Type: PLACEBO_COMPARATOR; Interventions: Drug: Grazoprevir 100mg / Elbasvir 50 mg FDC, Drug: Placebo to Grazoprevir / Elbasvir 50 mg FDC | Intervention Type: DRUG; Name: Grazoprevir 100mg / Elbasvir 50 mg FDC; Assigned to Arm(s): Deferred Treatment Group, Immediate Treatment Group | Intervention Type: DRUG; Name: Placebo to Grazoprevir / Elbasvir 50 mg FDC; Assigned to Arm(s): Deferred Treatment Group
D: Arm Label: SOF/VEL 12 Weeks; Type: EXPERIMENTAL; Interventions: Drug: SOF/VEL | Arm Label: SOF+RBV 24 Weeks; Type: EXPERIMENTAL; Interventions: Drug: SOF, Drug: RBV | Intervention Type: DRUG; Name: SOF/VEL; Assigned to Arm(s): SOF/VEL 12 Weeks | Intervention Type: DRUG; Name: SOF; Assigned to Arm(s): SOF+RBV 24 Weeks | Intervention Type: DRUG; Name: RBV; Assigned to Arm(s): SOF+RBV 24 Weeks

Answer: A