Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Randomized, Partially-blind Study on the Safety, Tolerability and Effect on Virological Response of Treatment With the HCV Protease Inhibitor RO5190591 in Combination With Pegasys and Copegus, Versus Pegasys and Copegus Alone, in Treatment-Naïve Patients With Hepatitis C Genotype 1 Virus Infectio
Brief Summary: This 2 part study will evaluate the efficacy and safety of 12 and 24 weeks treatment with RO5190591 (danoprevir) in combination with Pegasys and Copegus, compared to Pegasys and Copegus alone, in treatment-naive patients with chronic hepatitis C genotype 1 virus infection.In Part 1 of the study, patients will be randomized to receive either 1) RO5190591 300mg po every 8 hours, 2) RO5190591 600mg po every 12 hours, 3) RO5190591 900mg po every 12 hours or 4) placebo, in combination with standard doses of Pegasys and Copegus. If the safety and virological response data from Part 1 of the study are supportive, in Part 2 patients will be randomized to receive either 1) RO5190591 300mg po every 8 hours or 600mg po every 12 hours or 900mg po every 12 hours or 2)placebo, in combination with standard doses of Pegasys and Copegus. The anticipated time on study treatment is 24-48 weeks, and the target sample size is 100-500 individuals.


Options:
A: Inclusion Criteria:

* Subjects chronically infected with HCV genotype 1 (Phase 2a and Phase 2b)
* Subjects chronically infected with HCV genotype 4 (Phase 2b only)
* HCV RNA viral load of ≥ 10\*5\* IU/mL at screening
* BMI of 18 - 35 kg/m² at screening

Exclusion Criteria:

* Cirrhosis (Phase 2a only)
* Decompensated cirrhosis (Phase 2b)
* Co-infection with HBV or HIV
* Hepatocellular carcinoma
* Prior treatment with anti-HCV drugs
B: Inclusion Criteria:

* adult patients, \>=18 years of age;
* chronic hepatitis C, genotype 1;
* treatment-naive.

Exclusion Criteria:

* liver cirrhosis and other forms of liver disease;
* HIV infection;
* hepatocellular cancer;
* cardiac disease.
C: Inclusion Criteria:

For Arms A, B and C:

- Participants must meet one of the following:

* Treatment-naive: Participant has never received antiviral treatment for hepatitis C infection OR
* Treatment Experienced (Prior null responders, Partial responders or Relapsers to IFN/RBV);

For Arm D:

- Participant must have prior treatment experience with SOF/pegIFN/RBV or SOF/RBV and meet one of the following categories:

* Prior SOF breakthrough/non-responder: HCV RNA detectable at the end of treatment with SOF/pegIFN/RBV or SOF/RBV;
* Prior SOF relapser: achieved HCV RNA undetectable at end of a prior treatment course SOF/pegIFN/RBV or SOF/RBV, but HCV RNA was detectable within 52 weeks following completion of therapy.

For Arms A, B, C and D:

* Chronic HCV genotype 4 infection with cirrhosis.
* Participant has plasma HCV RNA level \> 1,000 IU/mL at Screening

Exclusion Criteria:

* Positive test result at Screening for Hepatitis B surface antigen (HBsAg) or anti-human immunodeficiency virus antibody (HIV Ab).
* Current enrollment in another interventional clinical study, previous enrollment in this study, or previous use of any protease inhibitor, non-nucleoside polymerase inhibitor, or Nonstructural viral protein (NS) 5A inhibitor, either investigational or commercially available (including previous exposure to paritaprevir or ombitasvir), or receipt of any investigational product within 6 weeks prior to study drug administration. Prior use of any direct-acting antiviral will not be allowed, except for Arm D where prior experience with the nucleoside polymerase inhibitor, sofosbuvir with pegIFN/RBV or SOF with RBV is required.
* Any current or past clinical evidence of Child-Pugh B or C classification or clinical history of liver decompensation including ascites, variceal bleeding, or hepatic encephalopathy.
* Confirmed presence of hepatocellular carcinoma.
* Any cause of liver disease other than chronic HCV infection.
* Abnormal laboratory tests.
D: Inclusion Criteria:

* Chronic Genotype 2 or 3 HCV-infection
* Naive to all HCV antiviral treatment(s)

Exclusion Criteria:

* Positive test at Screening for HBsAg, anti-hepatitis B core immunoglobulin M antibody (anti-HBc IgM Ab), or anti-HIV Ab
* History of any other clinically significant chronic liver disease
* A history consistent with decompensated liver disease
* History or current evidence of psychiatric illness, immunologic disorder, hemoglobinopathy, pulmonary or cardiac disease, seizure disorder or anticonvulsant use, poorly controlled diabetes, cancer, or a history of malignancy, that makes the subject unsuitable for the study.
* Participation in a clinical study within 3 months prior to first dose

Answer: B