Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: A Phase 3, Multicenter, Open-Label Study to Investigate the Efficacy and Safety of GS-7977 With Peginterferon Alfa 2a and Ribavirin for 12 Weeks in Treatment-Naive Subjects With Chronic Genotype 1, 4, 5, or 6 HCV Infection
Brief Summary: This study was to assess whether sofosbuvir in combination with ribavirin (RBV) and pegylated interferon alfa 2a (PEG) administered for 12 weeks is safe and effective in patients with hepatitis C virus (HCV) genotypes 1, 4, 5 , or 6 as assessed by the rate of sustained viral response (SVR) 12 weeks after discontinuation of therapy (SVR12).


Options:
A: Arm Label: Velpatasvir 5 mg (GT 1a); Type: EXPERIMENTAL; Interventions: Drug: Velpatasvir, Drug: Placebo | Arm Label: Velpatasvir 25 mg (GT 1a); Type: EXPERIMENTAL; Interventions: Drug: Velpatasvir, Drug: Placebo | Arm Label: Velpatasvir 50 mg (GT 1a); Type: EXPERIMENTAL; Interventions: Drug: Velpatasvir, Drug: Placebo | Arm Label: Velpatasvir 100 mg (GT 1a); Type: EXPERIMENTAL; Interventions: Drug: Velpatasvir, Drug: Placebo | Arm Label: Velpatasvir 150 mg (GT 1a); Type: EXPERIMENTAL; Interventions: Drug: Velpatasvir, Drug: Placebo | Arm Label: Velpatasvir 150 mg (GT 1b); Type: EXPERIMENTAL; Interventions: Drug: Velpatasvir, Drug: Placebo | Arm Label: Velpatasvir 150 mg (GT 2); Type: EXPERIMENTAL; Interventions: Drug: Velpatasvir, Drug: Placebo | Arm Label: Velpatasvir 25 mg (GT 3); Type: EXPERIMENTAL; Interventions: Drug: Velpatasvir, Drug: Placebo | Arm Label: Velpatasvir 50 mg (GT 3); Type: EXPERIMENTAL; Interventions: Drug: Velpatasvir, Drug: Placebo | Arm Label: Velpatasvir 150 mg (GT 3); Type: EXPERIMENTAL; Interventions: Drug: Velpatasvir, Drug: Placebo | Arm Label: Velpatasvir 150 mg (GT 4); Type: EXPERIMENTAL; Interventions: Drug: Velpatasvir, Drug: Placebo | Arm Label: Velpatasvir up to 400 mg (GT 2); Type: EXPERIMENTAL; Interventions: Drug: Velpatasvir, Drug: Placebo | Intervention Type: DRUG; Name: Velpatasvir; Assigned to Arm(s): Velpatasvir 100 mg (GT 1a), Velpatasvir 150 mg (GT 1a), Velpatasvir 150 mg (GT 1b), Velpatasvir 150 mg (GT 2), Velpatasvir 150 mg (GT 3), Velpatasvir 150 mg (GT 4), Velpatasvir 25 mg (GT 1a), Velpatasvir 25 mg (GT 3), Velpatasvir 5 mg (GT 1a), Velpatasvir 50 mg (GT 1a), Velpatasvir 50 mg (GT 3), Velpatasvir up to 400 mg (GT 2) | Intervention Type: DRUG; Name: Placebo; Assigned to Arm(s): Velpatasvir 100 mg (GT 1a), Velpatasvir 150 mg (GT 1a), Velpatasvir 150 mg (GT 1b), Velpatasvir 150 mg (GT 2), Velpatasvir 150 mg (GT 3), Velpatasvir 150 mg (GT 4), Velpatasvir 25 mg (GT 1a), Velpatasvir 25 mg (GT 3), Velpatasvir 5 mg (GT 1a), Velpatasvir 50 mg (GT 1a), Velpatasvir 50 mg (GT 3), Velpatasvir up to 400 mg (GT 2)
B: Arm Label: Arm 1. PEG +RBV for 48 Wks (Part I); Type: ACTIVE_COMPARATOR; Interventions: Drug: peginterferon-alfa 2b (PegIntron), Drug: ribavirin | Arm Label: Arm 2. PEG + RBV + BOC for 28 Wks (Part I); Type: EXPERIMENTAL; Interventions: Drug: boceprevir (SCH 503034), Drug: peginterferon-alfa 2b (PegIntron), Drug: ribavirin | Arm Label: Arm 3. PEG + RBV + BOC (from Wk 4) for 24 Wks (Part I); Type: EXPERIMENTAL; Interventions: Drug: boceprevir (SCH 503034), Drug: peginterferon-alfa 2b (PegIntron), Drug: ribavirin | Arm Label: Arm 4. PEG +RBV + BOC for 48 Wks (Part I); Type: EXPERIMENTAL; Interventions: Drug: boceprevir (SCH 503034), Drug: peginterferon-alfa 2b (PegIntron), Drug: ribavirin | Arm Label: Arm 5. PEG + RBV + BOC (from Wk 4) for 44 Wks (Part I); Type: EXPERIMENTAL; Interventions: Drug: boceprevir (SCH 503034), Drug: peginterferon-alfa 2b (PegIntron), Drug: ribavirin | Arm Label: Arm 6. PEG + RBV + BOC for 48 Wks (Part II); Type: EXPERIMENTAL; Interventions: Drug: boceprevir (SCH 503034), Drug: peginterferon-alfa 2b (PegIntron), Drug: ribavirin | Arm Label: Arm 7. PEG +Low-dose RBV + BOC for 48 Wks (Part II); Type: EXPERIMENTAL; Interventions: Drug: boceprevir (SCH 503034), Drug: peginterferon-alfa 2b (PegIntron), Drug: ribavirin (low-dose) | Arm Label: Arm 8. PEG + RBV + BOC (from Wk 24) for 48 Wks (Part I); Type: EXPERIMENTAL; Interventions: Drug: boceprevir (SCH 503034), Drug: peginterferon-alfa 2b (PegIntron), Drug: ribavirin | Intervention Type: DRUG; Name: boceprevir (SCH 503034); Assigned to Arm(s): Arm 2. PEG + RBV + BOC for 28 Wks (Part I), Arm 3. PEG + RBV + BOC (from Wk 4) for 24 Wks (Part I), Arm 4. PEG +RBV + BOC for 48 Wks (Part I), Arm 5. PEG + RBV + BOC (from Wk 4) for 44 Wks (Part I), Arm 6. PEG + RBV + BOC for 48 Wks (Part II), Arm 7. PEG +Low-dose RBV + BOC for 48 Wks (Part II), Arm 8. PEG + RBV + BOC (from Wk 24) for 48 Wks (Part I) | Intervention Type: DRUG; Name: peginterferon-alfa 2b (PegIntron); Assigned to Arm(s): Arm 1. PEG +RBV for 48 Wks (Part I), Arm 2. PEG + RBV + BOC for 28 Wks (Part I), Arm 3. PEG + RBV + BOC (from Wk 4) for 24 Wks (Part I), Arm 4. PEG +RBV + BOC for 48 Wks (Part I), Arm 5. PEG + RBV + BOC (from Wk 4) for 44 Wks (Part I), Arm 6. PEG + RBV + BOC for 48 Wks (Part II), Arm 7. PEG +Low-dose RBV + BOC for 48 Wks (Part II), Arm 8. PEG + RBV + BOC (from Wk 24) for 48 Wks (Part I) | Intervention Type: DRUG; Name: ribavirin; Assigned to Arm(s): Arm 1. PEG +RBV for 48 Wks (Part I), Arm 2. PEG + RBV + BOC for 28 Wks (Part I), Arm 3. PEG + RBV + BOC (from Wk 4) for 24 Wks (Part I), Arm 4. PEG +RBV + BOC for 48 Wks (Part I), Arm 5. PEG + RBV + BOC (from Wk 4) for 44 Wks (Part I), Arm 6. PEG + RBV + BOC for 48 Wks (Part II), Arm 8. PEG + RBV + BOC (from Wk 24) for 48 Wks (Part I) | Intervention Type: DRUG; Name: ribavirin (low-dose); Assigned to Arm(s): Arm 7. PEG +Low-dose RBV + BOC for 48 Wks (Part II)
C: Arm Label: Sofosbuvir+PEG+RBV; Type: EXPERIMENTAL; Interventions: Drug: Sofosbuvir, Drug: RBV, Drug: PEG | Intervention Type: DRUG; Name: Sofosbuvir; Assigned to Arm(s): Sofosbuvir+PEG+RBV | Intervention Type: DRUG; Name: RBV; Assigned to Arm(s): Sofosbuvir+PEG+RBV | Intervention Type: DRUG; Name: PEG; Assigned to Arm(s): Sofosbuvir+PEG+RBV
D: Arm Label: Immediate Treatment; Type: EXPERIMENTAL; Interventions: Drug: Grazoprevir, Drug: Elbasvir | Arm Label: Deferred Treatment; Type: EXPERIMENTAL; Interventions: Drug: Grazoprevir, Drug: Elbasvir, Drug: Placebo to Grazoprevir, Drug: Placebo to Elbasvir | Arm Label: Intensive PK; Type: EXPERIMENTAL; Interventions: Drug: Grazoprevir, Drug: Elbasvir | Intervention Type: DRUG; Name: Grazoprevir; Assigned to Arm(s): Deferred Treatment, Immediate Treatment, Intensive PK | Intervention Type: DRUG; Name: Elbasvir; Assigned to Arm(s): Deferred Treatment, Immediate Treatment, Intensive PK | Intervention Type: DRUG; Name: Placebo to Grazoprevir; Assigned to Arm(s): Deferred Treatment | Intervention Type: DRUG; Name: Placebo to Elbasvir; Assigned to Arm(s): Deferred Treatment

Answer: C