Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: A Phase III Randomized Clinical Trial to Study the Efficacy and Safety of the Combination Regimen of MK-5172/MK-8742 in Treatment-Naïve Subjects With Chronic HCV GT1, GT4, and GT6 Infection.
Brief Summary: This was an efficacy and safety study of grazoprevir (MK-5172) in combination with elbasvir (MK-8742) in treatment-naive participants with chronic hepatitis C virus (HCV) genotype (GT) 1, 4, or 6 infection. Participants were randomly assigned (3:1 ratio) to immediate treatment or deferred treatment (placebo control). The primary efficacy hypothesis was that the proportion of participants receiving combination therapy in the Immediate Treatment Arm who achieve sustained viral response at 12 weeks after the end of study treatment (SVR12) is superior to 73%.


Options:
A: Arm Label: PBO 12 Week+Peg-IFN-alfa-2a, RBV 48 Week; Type: PLACEBO_COMPARATOR; Interventions: Biological: Pegylated Interferon Alfa 2a, Drug: Ribavirin, Other: Placebo | Arm Label: Telaprevir 8 Week, PBO 4 Week+Peg-IFN-alfa-2a, RBV 24/48 Week; Type: EXPERIMENTAL; Interventions: Biological: Pegylated Interferon Alfa 2a, Drug: Telaprevir, Drug: Ribavirin, Other: Placebo | Arm Label: Telaprevir 12 Week+Peg-IFN-alfa-2a, RBV 24/48 Week; Type: EXPERIMENTAL; Interventions: Biological: Pegylated Interferon Alfa 2a, Drug: Telaprevir, Drug: Ribavirin | Intervention Type: BIOLOGICAL; Name: Pegylated Interferon Alfa 2a; Assigned to Arm(s): PBO 12 Week+Peg-IFN-alfa-2a, RBV 48 Week, Telaprevir 12 Week+Peg-IFN-alfa-2a, RBV 24/48 Week, Telaprevir 8 Week, PBO 4 Week+Peg-IFN-alfa-2a, RBV 24/48 Week | Intervention Type: DRUG; Name: Telaprevir; Assigned to Arm(s): Telaprevir 12 Week+Peg-IFN-alfa-2a, RBV 24/48 Week, Telaprevir 8 Week, PBO 4 Week+Peg-IFN-alfa-2a, RBV 24/48 Week | Intervention Type: DRUG; Name: Ribavirin; Assigned to Arm(s): PBO 12 Week+Peg-IFN-alfa-2a, RBV 48 Week, Telaprevir 12 Week+Peg-IFN-alfa-2a, RBV 24/48 Week, Telaprevir 8 Week, PBO 4 Week+Peg-IFN-alfa-2a, RBV 24/48 Week | Intervention Type: OTHER; Name: Placebo; Assigned to Arm(s): PBO 12 Week+Peg-IFN-alfa-2a, RBV 48 Week, Telaprevir 8 Week, PBO 4 Week+Peg-IFN-alfa-2a, RBV 24/48 Week
B: Arm Label: Placebo + Peg-IFN/Ribavirin; Type: PLACEBO_COMPARATOR; Interventions: Drug: Comparator: Pegylated-Interferon (Peg-IFN), Drug: Comparator: Ribavirin | Arm Label: Vaniprevir 300 mg b.i.d. + Peg-IFN/Ribavirin; Type: EXPERIMENTAL; Interventions: Drug: Comparator: Vaniprevir, Drug: Comparator: Pegylated-Interferon (Peg-IFN), Drug: Comparator: Ribavirin | Arm Label: Vaniprevir 600 mg b.i.d. + Peg-IFN/Ribavirin; Type: EXPERIMENTAL; Interventions: Drug: Comparator: Vaniprevir, Drug: Comparator: Pegylated-Interferon (Peg-IFN), Drug: Comparator: Ribavirin | Arm Label: Vaniprevir 600 mg q.d. + Peg-IFN/Ribavirin; Type: EXPERIMENTAL; Interventions: Drug: Comparator: Vaniprevir, Drug: Comparator: Pegylated-Interferon (Peg-IFN), Drug: Comparator: Ribavirin | Arm Label: Vaniprevir 800 mg q.d. + Peg-IFN/Ribavirin; Type: EXPERIMENTAL; Interventions: Drug: Comparator: Vaniprevir, Drug: Comparator: Pegylated-Interferon (Peg-IFN), Drug: Comparator: Ribavirin, Drug: Comparator: placebo | Intervention Type: DRUG; Name: Comparator: Vaniprevir; Assigned to Arm(s): Vaniprevir 300 mg b.i.d. + Peg-IFN/Ribavirin, Vaniprevir 600 mg b.i.d. + Peg-IFN/Ribavirin, Vaniprevir 600 mg q.d. + Peg-IFN/Ribavirin, Vaniprevir 800 mg q.d. + Peg-IFN/Ribavirin | Intervention Type: DRUG; Name: Comparator: Pegylated-Interferon (Peg-IFN); Assigned to Arm(s): Placebo + Peg-IFN/Ribavirin, Vaniprevir 300 mg b.i.d. + Peg-IFN/Ribavirin, Vaniprevir 600 mg b.i.d. + Peg-IFN/Ribavirin, Vaniprevir 600 mg q.d. + Peg-IFN/Ribavirin, Vaniprevir 800 mg q.d. + Peg-IFN/Ribavirin | Intervention Type: DRUG; Name: Comparator: Ribavirin; Assigned to Arm(s): Placebo + Peg-IFN/Ribavirin, Vaniprevir 300 mg b.i.d. + Peg-IFN/Ribavirin, Vaniprevir 600 mg b.i.d. + Peg-IFN/Ribavirin, Vaniprevir 600 mg q.d. + Peg-IFN/Ribavirin, Vaniprevir 800 mg q.d. + Peg-IFN/Ribavirin | Intervention Type: DRUG; Name: Comparator: placebo; Assigned to Arm(s): Vaniprevir 800 mg q.d. + Peg-IFN/Ribavirin
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: Daclatasvir, plus Peginterferon alpha-2a, ribavirin (A); Type: EXPERIMENTAL; Interventions: Drug: Daclatasvir, Drug: Peginterferon alpha-2a, Drug: ribavirin | Arm Label: Daclatasvir, Peginterferon alpha-2a, ribavirin (B); Type: EXPERIMENTAL; Interventions: Drug: Daclatasvir, Drug: Peginterferon alpha-2a, Drug: ribavirin | Arm Label: Daclatasvir, Peginterferon alpha-2a, ribavirin (C); Type: EXPERIMENTAL; Interventions: Drug: Daclatasvir, Drug: Peginterferon alpha-2a, Drug: ribavirin | Arm Label: Placebo, Peginterferon alpha-2a, ribavirin (D); Type: ACTIVE_COMPARATOR; Interventions: Drug: Placebo, Drug: Peginterferon alpha-2a, Drug: ribavirin | Intervention Type: DRUG; Name: Daclatasvir; Assigned to Arm(s): Daclatasvir, plus Peginterferon alpha-2a, ribavirin (A) | Intervention Type: DRUG; Name: Daclatasvir; Assigned to Arm(s): Daclatasvir, Peginterferon alpha-2a, ribavirin (B) | Intervention Type: DRUG; Name: Daclatasvir; Assigned to Arm(s): Daclatasvir, Peginterferon alpha-2a, ribavirin (C) | Intervention Type: DRUG; Name: Placebo; Assigned to Arm(s): Placebo, Peginterferon alpha-2a, ribavirin (D) | Intervention Type: DRUG; Name: Peginterferon alpha-2a; Assigned to Arm(s): Daclatasvir, Peginterferon alpha-2a, ribavirin (B), Daclatasvir, Peginterferon alpha-2a, ribavirin (C), Daclatasvir, plus Peginterferon alpha-2a, ribavirin (A), Placebo, Peginterferon alpha-2a, ribavirin (D) | Intervention Type: DRUG; Name: ribavirin; Assigned to Arm(s): Daclatasvir, Peginterferon alpha-2a, ribavirin (B), Daclatasvir, Peginterferon alpha-2a, ribavirin (C), Daclatasvir, plus Peginterferon alpha-2a, ribavirin (A), Placebo, Peginterferon alpha-2a, ribavirin (D)

Answer: C