Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Phase 3, Multicenter, Randomized, Open-Label Study to Investigate the Efficacy and Safety of Sofosbuvir/GS-5885 Fixed-Dose Combination (FDC) +/- Ribavirin for 12 and 24 Weeks in Treatment-Naive Subjects With Chronic Genotype 1 HCV Infection.
Brief Summary: The purpose of this study is to evaluate the safety, tolerability, and antiviral efficacy of ledipasvir (LDV)/sofosbuvir (SOF) fixed-dose combination (FDC) tablets with or without ribavirin (RBV) administered for 12 and 24 weeks in treatment-naive subjects with chronic genotype 1 HCV infection.


Options:
A: Inclusion Criteria:

* Age ≥ 18, with chronic genotype 1 HCV infection
* HCV treatment-naive
* HCV RNA \> 10,000 IU/mL at screening
* Cirrhosis determination; a liver biopsy may be required
* Screening laboratory values within defined thresholds
* Use of two effective contraception methods if female of childbearing potential or sexually active male

Exclusion Criteria:

* Pregnant or nursing female or male with pregnant female partner
* Co-infection with HIV or hepatitis B virus (HBV)
* Current or prior history of clinical hepatic decompensation
* Hepatocellular carcinoma (HCC) or other malignancy (with exception of certain resolved skin cancers)
* Chronic use of systemic immunosuppressive agents
* History of clinically significant illness or any other medical disorder that may interfere with subject treatment, assessment or compliance with the protocol
B: Key Inclusion Criteria:

* Participants chronically infected with hepatitis C virus (HCV) genotype 2 or 3
* No previous exposure to an interferon formulation (ie, interferon alfa, pegylated interferon alfa-2a ) or ribavirin
* Body mass index (BMI) of 18 to 35 kg/m\^2, inclusive. BMI=weight (kg)/height (m)\^2
* Males and females, 18 - 70 years of age

Key Exclusion Criteria:

* Liver transplant recipients
* Documented or suspected hepatocellular carcinoma
* Evidence of decompensated cirrhosis
* History of chronic hepatitis B virus (HBV). Patients with resolved HBV infection may participate
* Current or known history of cancer
* Any gastrointestinal disease or surgical procedure that may impact the absorption of study drug
* Inability to tolerate oral medication
* Poor venous access
* Severe psychiatric disease
* History of chronic pulmonary disease
* History of cardiomyopathy, coronary artery disease (including angina), interventive procedure for coronary artery disease (including angioplasty, stent procedure, or cardiac bypass surgery), ventricular arrhythmia,, or other clinically significant cardiac disease
* History of or current electrocardiogram findings indicative of cardiovascular instability
* Preexisting ophthalmologic disorders considered clinically significant on eye
* History of uncontrolled diabetes mellitus
* Any known contraindication to pegylated interferon alfa-2a or ribavirin not otherwise specified.
* Positive hepatitis B virus surface antigen, HIV-1 or HIV-2 Ab
* Prior exposure to any HCV direct antiviral agent (eg, HCV protease, polymerase, previous nonstructural protein 5A inhibitors)
* Exposure to any investigational drug or placebo
C: Inclusion Criteria:

* Participant must have previously documented CHC genotype 1 infection.
* Participant must have a liver biopsy with histology consistent with CHC and no other etiology.
* Participants with bridging fibrosis or cirrhosis must have an ultrasound within 6 months of the Screening Visit (or between Screening and Day 1) with no findings suspicious for hepatocellular carcinoma (HCC).
* Participant must be \>=18 years of age.
* Participant must weigh between 40 kg and 125 kg.
* Participant and participant's partner(s) must each agree to use acceptable methods of contraception for at least 2 weeks prior to Day 1 and continue until at least 6 months after last dose of study drug, or longer if dictated by local regulations.
* Participants must be willing to give written informed consent.

Exclusion Criteria:

* Coinfection with the human immunodeficiency virus (HIV) or hepatitis B virus (HBsAg positive).
* Participants who received prior treatment for hepatitis C; other than herbal remedies, except those with known hepatotoxicity.
* Treatment with any investigational drug within 30 days of the randomization visit in this study.
* Participation in any other clinical trial within 30 days of randomization or intention to participate in another clinical trial during participation in this study.
* Evidence of decompensated liver disease including, but not limited to, a history or presence of clinical ascites, bleeding varices, or hepatic encephalopathy.
* Diabetic and/or hypertensive participants with clinically significant ocular examination findings: retinopathy, cotton wool spots, optic nerve disorder, retinal hemorrhage, or any other clinically significant abnormality.
* Pre-existing psychiatric condition(s).
* Clinical diagnosis of substance abuse of the specified drugs within the specified timeframes.
* Any known pre-existing medical condition that could interfere with the participant's participation in and completion of the study.
* Evidence of active or suspected malignancy, or a history of malignancy, within the last 5 years (except adequately treated carcinoma in situ and basal cell carcinoma of the skin). Participants under evaluation for malignancy are not eligible.
* Participants who are pregnant or nursing. Participants who intend to become pregnant during the study period. Male participants with partners who are, or intend to become, pregnant during the study period.
* Any other condition which, in the opinion of a physician, would make the participant unsuitable for enrollment or could interfere with the participant participating in and completing the study.
* Participants who are part of the site personnel directly involved with this study.
* Participants who are family members of the investigational study staff.
* Participants who had life-threatening serious adverse event (SAE) during screening period.
* Protocol-specified hematologic, biochemical, and serologic criteria: Hemoglobin \<12 g/dL for females and \<13 g/dL for males; Neutrophils \<1500/mm\^3 (blacks: \<1200/mm\^3); Platelets \<100,000/mm\^3; Direct bilirubin \>1.5 x upper limit of normal (ULN)
* Serum albumin \< lower limit of normal (LLN)
* Thyroid-stimulating hormone (TSH) \>1.2 x ULN or \<0.8 x LLN of laboratory, with certain exceptions.
* Serum creatinine \>ULN of the laboratory reference.
* Protocol-specified serum glucose concentrations.
* protocol-specified alpha fetoprotein levels.
* Prothrombin time/partial thromboplastin time (PT/PTT) values \>10% above laboratory reference range.
* Anti-nuclear antibodies (ANA) \>1:320.
D: Inclusion Criteria:

* Chronic genotype 1 hepatitis C virus (HCV) infection
* Plasma HCV RNA of more than 10,000 IU/mL at screening
* Patients in Cohort 1 must be null responders to PegIFN/ribavirin with at least 1 documented previous course of PegIFN/ribavirin therapy for at least 12 consecutive weeks
* Patients in Cohort 2 must be null responders to PegIFN/ribavirin with at least 1 documented previous course of PegIFN/ribavirin therapy for at least 12 consecutive weeks and could also be HCV treatment-naive, meaning never received treatment with any approved or investigational drug for the treatment of HCV
* Null responders patients in Cohort 1 and Cohort 2 must meet the defined criterion for a null responder, defined as on-treatment less than 2 log10 IU/mL reduction in HCV RNA from baseline at Week 12 of the most recent PegIFN/ribavirin therapy
* Patient must have had a liver biopsy within 3 years before screening (or between screening and baseline visit) or patient must have had a liver biopsy at any time in the past which showed Metavir F3 or F4 fibrosis
* Must agree to use 2 forms of effective contraception throughout the study (male and female)

Exclusion Criteria:

* Has evidence of hepatic decompensation
* Has any liver disease of non-HCV etiology
* Has an infection/co-infection with non-genotype 1 HCV
* Has a co-infection with Human immunodeficiency virus (HIV) type 1 or type 2 (HIV-1 or HIV-2) (positive HIV-1 or HIV-2 antibody test at screening)
* Has a co-infection with hepatitis B virus (hepatitis B surface antigen \[HBsAg\] positive)
* Has a history of malignancy within 5 years of the screening visit

Answer: A