Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Multiple Dose Study to Evaluate the Safety, Pharmacokinetics and Pharmacodynamics of MK-8742 in Hepatitis C Infected Males
Brief Summary: The purpose of this study is to assess the safety, pharmacokinetics (PK) and pharmacodynamics of elbasvir (MK-8742) in Hepatitis C Virus (HCV)-infected participants. There will be 3 parts to this study; Part I will enroll only genotype (GT) 1 HCV-infected participants, Part II will enroll GT3 HCV-infected participants, and Part III will enroll only GT1a HCV-infected participants. All parts may run concurrently, or Parts II and III may be staggered.

Hypothesis (Part I): At a once-daily dose that is sufficiently safe and well tolerated in HCV-infected participants, elbasvir administered for 5 consecutive days has superior antiviral activity in GT1 HCV-infected participants compared to placebo, as measured by change from baseline in plasma HCV ribonucleic acid (RNA; log 10 copies/mL) at Day 5, 24-hour postdose timepoint. (a true mean viral RNA reduction of at least 3 log10 is anticipated).

Hypothesis (Part II): At a dose that is sufficiently safe in GT3 HCV-infected participants, the mean maximum reduction in HCV viral load is greater following multiple dose oral administration of elbasvir as compared to placebo.

Hypothesis (Part III): At a once-daily dose that is sufficiently safe and well tolerated in HCV-infected participants, elbasvir administered for 5 consecutive days has superior antiviral activity in GT1a HCV-infected participants compared to placebo, as measured by change from baseline in plasma HCV RNA (log 10 copies/mL) at Day 5, 24-hour postdose timepoint. (a true mean viral RNA reduction of at least 3 log10 is anticipated).


Options:
A: Inclusion Criteria:

* Body Mass Index (BMI) of 18 to ≤ 37 kg/m\^2
* Clinical diagnosis of chronic HCV infection defined by positive serology for HCV for at least 6 months and detectable HCV RNA in peripheral blood ≥105 IU/mL at screening
* Participant must be infected with HCV GT1a, GT1b, or GT 3

Exclusion Criteria:

* Co-infection with GT1 and GT3
* Estimated creatinine clearance of ≤70 mL/min based on the Cockcroft-Gault equation
* History of stroke, chronic seizures, or major neurological disorder
* History of clinically significant endocrine, gastrointestinal (excepting HCV infection), cardiovascular, hematological, immunological, renal, respiratory, or genitourinary abnormalities or diseases
* History of neoplastic disease
* Positive Hepatitis B surface antigen at the pre-study (screening) visit
* Has had major surgery, donated or lost 1 unit of blood (approximately 500 mL) or participated in another investigational study within 4 weeks prior to the prestudy (screening) visit.
* Previous treatments (s) with nonstructural protein 5A (NS5A) inhibitors
* \<4 weeks since administration of any experimental protease inhibitor
* Previous exposure to interferon-alpha and/or ribavirin within 3 month prior to the first dose of elbasvir in the study
* Clinical or laboratory evidence of advanced or decompensated liver disease
B: Inclusion Criteria:

* Males or females aged 18 to 70 years, inclusive, at screening
* Documented chronic genotype 1, 2, or 3 HCV infection
* No previous treatment with HCV antiviral mediations
* Body mass index (BMI) of greater than 18 kg/m2, but not exceeding 36 kg/m2.
* Liver biopsy obtained within 3 years prior to the Day 1 visit, with a fibrosis classification of non-cirrhotic as judged by a local pathologist
* Willing to refrain from beginning any new exercise regimens during the first 3 months of the study
* Fasting blood glucose ≤ 300 mg/dl and/or glycosylated hemoglobin (HbA1c) ≤ 8
* History of hypertension only if managed effectively on a stable regimen of two or fewer antihypertensives for at least three (3) months prior to screening

Exclusion Criteria:

* Females who were breastfeeding
* Males and females of reproductive potential who are unwilling to use an "effective", protocol-specified method(s) of contraception during the study
* Positive test at Screening for HBsAg, anti-HBc IgM Ab, or anti-HIV Ab.
* History of any other clinically significant chronic liver disease
* Treatment with herbal/natural remedies with antiviral activity within 30 days prior to baseline.
* Significant history of immunologically mediated disease, cardiac or pulmonary disease, seizure disorder or anticonvulsant use
* History of ascites, variceal hemorrhage, hepatic encephalopathy, or conditions consistent with decompensated liver disease
* Use of medications associated with QT prolongation within 30 days prior to dosing
* Screening electrocardiogram (ECG) QTc value greater than 450 ms and/or clinically significant ECG findings
* Personal or family history of Torsade de pointes.
* Positive results for drugs of abuse test at screening
* Abnormal hematological and biochemical parameters, including alanine aminotransferase (ALT) or aspartate aminotransferase (AST) ≥ 5 times the upper limit of the normal range (ULN)
* History of major organ transplantation with an existing functional graft
* History of uncontrolled thyroid disease or abnormal thyroid-stimulating hormone (TSH) levels at screening
* Clinically significant drug allergy to nucleoside/nucleotide analogs
* History or current evidence of psychiatric illness, immunologic disorder, pulmonary, cardiac disease, seizure disorder, cancer or history of malignancy that in the opinion of the investigator makes the patient unsuitable for the study
* History of systemic antineoplastic or immunomodulatory treatment within 6 months prior to dosing, or the expectation of such treatment during the study
C: Inclusion Criteria:

* adult patients, 18-65 years of age;
* chronic hepatitis C, genotype 1;
* chronic liver disease consistent with CHC;
* compensated liver disease.

Exclusion Criteria:

* infection with any HCV genotype other than genotype 1;
* previous treatment for CHC;
* medical condition associated with chronic liver disease other than CHC;
* HIV, hepatitis A, hepatitis B infection.
D: Inclusion Criteria:

* Documented chronic (at least 6 months) HCV GT 1 infection (with no evidence of mixed genotypes or genotype that cannot be assigned a type)
* Evidence or no evidence of liver cirrhosis based on one of the following:
* Liver biopsy performed within 24 months of Day 1 (if participant is cirrhotic then there is no time restriction on biopsy)
* Fibroscan performed within 12 months of Day 1 of this study
* Fibrosure™ (Fibrotest™) plus aspartate aminotransferase to platelet Ratio Index \[APRI\] obtained during the screening period)
* Has HCV status that is one of the following:
* Treatment naïve
* Prior interferon or pegylated interferon with or without ribavarin failures (null responder, partial responder, or relapser)
* Intolerant to prior interferon or pegylated intereferon with or without ribavarin regimen
* Chronic kidney disease (defined as glomerular filtration rate \[eGFR\] \<=29) non-dialysis dependent or on hemodialysis for at least 3 months, including individuals awaiting kidney transplant and those with failed kidney transplants but no longer on immunosuppressant therapy)
* Female participant of reproductive potential must agree to remain abstinent or use (or have their partner use) 2 acceptable methods of contraception from at least 2 weeks prior to Day 1 through 14 days after the last dose of study drugs, or longer if dictated by local regulations

Exclusion Criteria:

* Evidence of decompensated liver disease
* On peritoneal dialysis for management of kidney disease
* Co-infection with hepatitis B virus or human immunodeficiency virus (HIV)
* History of malignancy \<=5 years prior to signing informed consent
* Clinical diagnosis of substance abuse
* Pregnant, breast-feeding, expecting to conceive or donate eggs, or donate sperm from Day 1 through 14 days after the last study dose, or longer if dictated by local regulations
* Organ transplant (including hematopoietic stem cell transplant) other than kidney, cornea, and hair
* Conditions requiring, or likely to require, chronic systemic administration of corticosteroids during the course of the trial
* Uncontrolled or poorly controlled hypertension
* Significant cardiovascular disorder (e.g. myocardial infarction or unstable angina) or cardiovascular procedure within 3 months prior to signing informed consent
* New or worsening signs or symptoms of congestive heart failure within 3 months of signing informed consent
* Severe active peripheral vascular disease
* Recent (within 3 months prior to signing informed consent) episode or recurrence of stroke, transient ischemic attack (TIA) or neurological disorder, including but not limited to seizures
* Evidence or history of chronic hepatitis not caused by HCV

Answer: A