Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Phase 3, Open-label Study to Investigate the Efficacy and Safety of Sofosbuvir Plus Ribavirin in Chronic Genotype 1, 2, 3 and 4 Hepatitis C Virus (HCV) and Human Immunodeficiency Virus (HIV) Co-infected Subjects
Brief Summary: This is an Open-label Phase 3 study in adults with chronic genotypes 1, 2, 3, and 4 HCV infection who are co-infected with HIV-1.


Options:
A: Inclusion Criteria: - Documented chronic genotype 1 Hepatitis C infection - Able to comply with the protocol requirements and having good accessible veins - Amount of virus in the blood (HCV RNA) \>= 10.000 IU/mL, at screening - Bodyweight as defined by a Quetelet Index (Body Mass Index \[BMI\]) between 18 and 32 kg/m², extremes included Exclusion Criteria: - Evidence of liver cirrhosis or decompensated liver disease or any other form of non-viral hepatitis - Participants receiving or having received treatment with polymerase inhibitor or protease inhibitor, or Standard of Care therapy with COPEGUS (ribavirin) and PEGASYS (peginterferon alpha-2a) for treatment for HCV during the 6 months before screening - Male participants with female partners of childbearing potential not agreeing to use a reliable birth control method, Female, except if postmenopausal for over 2 years, or posthysterectomy, or post-tubal ligation (without reversal operation) - History or evidence of current use of alcohol, barbiturate, amphetamine, recreational or narcotic drug use, which would compromise the participant 's safety and/or compliance. A positive urine drug test at screening. Urine will be tested to check the current use of amphetamines, cocaine, and opioids (with the exclusion of methadone) - Participants having at least one lab toxicity that is found to be clinically significant - Participants co-infected with HIV, or Hepatitis A or B, or hepatitis B surface antigen, or active tuberculosis at screening, participants with prolonged QTc (\>480 ms) value or any cardiac disease at screening, or any active clinically significant disease (e.g., cardiac dysfunction, cardio(myo)pathy, cardiac insufficiency), or medical history or physical examination findings during screening that, in the Investigator's opinion, would compromise the outcome of the trial - Participants having uncontrolled/unstable diabetes, epilepsy, a manifest psychiatric disease, non-stable methadone (or equivalent drug) use or participants having any other unstable disease, participants enrolled in another clinical trial within 90 days prior to screening
B: 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.
C: Inclusion Criteria:

* Age ≥ 18 years with HIV-1 and chronic HCV genotype 1, 2, 3, or 4 co-infection
* HCV RNA \> 10,000 IU/mL at screening
* HCV treatment history:

  * Treatment-naive for HCV genotypes 1, 2, 3, or 4, or
  * Treatment-experienced for HCV genotypes 2 or 3
* HIV antiretroviral (ARV) criteria:

  * On a stable, protocol-approved, HIV ARV regimen with undetectable HIV RNA for \> 8 weeks prior to screening, or
  * ARV untreated for ≥ 8 weeks prior to screening, with a CD4 T-cell count \> 500 cells/mm\^3
* Presence or absence of cirrhosis; a liver biopsy may be required
* Healthy according to medical history and physical examination with the exception of HCV and HIV diagnosis
* Agree to use two forms of highly effective contraception for the duration of the study and 6 months after the last dose of study medication

Exclusion Criteria:

* HCV genotype 1 or 4 with previous HCV treatment
* Poor control with HIV ARV regimen requiring a possible dose modification of therapy within 4 weeks of study medication dosing
* A new AIDS-defining condition diagnosed within 30 days prior to screening
* Prior use of any other inhibitor of the HCV NS5B polymerase
* History of any other clinically significant chronic liver disease
* Evidence of or history of decompensated liver disease
* Chronic hepatitis B virus (HBV) infection
* Hepatocellular carcinoma (HCC) or other malignancy (with exception of certain resolved skin cancers)
* Chronic use of immunosuppressive agents or immunomodulatory agents
* Clinically relevant drug or alcohol abuse within 12 months of screening
* History or current evidence of any condition, therapy, laboratory abnormality or other circumstance that might confound the results of the study, or interfere with the participant's participation for the full duration of the study or not be in the best interest of the participant in the opinion of the investigator
D: Inclusion Criteria:

* Patient must have chronic hepatitis C infection (genotype 1) with HCV RNA level \>= 1000 IU/mL
* Patient must have failed at least 1 prior course of Peg-IFN/RBV therapy (standard treatment)
* Patient must be willing to use 2 effective methods of birth control for up to 7 months after last dose of study medication

Exclusion Criteria:

* Patient is a previous non-responder that is classified as a viral breakthrough case
* Patient is infected with Hepatitis C virus, genotype 1, exhibiting more than one subtype
* Patient has Hepatitis C virus, genotype 1, and exhibits co-infection with any other genotype
* Evidence of decompensated liver disease
* Patient has condition that requires use of systemic corticosteroids

Answer: C