Please select the eligibility criteria that correspond to the clinical trial below.
Title: Hepatitis C Antiviral Long-term Treatment Against Cirrhosis Trial (HALT-C)
Brief Summary: The HALT-C Trial is a National Institute of Diabetes and Digestive and Kidney Diseases sponsored, randomized clinical trial of long-term use of Peginterferon alfa-2a (pegylated interferon) in patients who failed to respond to prior interferon treatment. All patients who enter the trial will be treated for 6 months with Peginterferon alfa-2a and Ribavirin. Patients who respond to this 6 month treatment will continue to be treated for an additional 6 months.

Patients who do not respond to this treatment will be eligible for the long-term maintenance phase of this study where patients will be randomly selected to be treated with Peginterferon alfa-2a or to discontinue treatment for 3.5 years. Patients in both arms of this study will be followed closely with quarterly study visits.

The combination of peginterferon plus ribavirin has recently been approved by the FDA for treatment of chronic hepatitis C. Patients who remain HCV-RNA positive after being treated for at least 6 months with peginterferon and ribavirin outside of this study may be eligible to directly enter the randomized portion of the HALT-C Trial.

The HALT-C study is designed to determine if continuing interferon long-term over several years will suppress Hepatitis C virus, prevent progression to cirrhosis, prevent liver cancer and reduce the need for liver transplantation.


Options:
A: Inclusion Criteria:

* Able to provide written informed consent
* Chronic genotype 1 or 4 HCV infection
* Normal ECG
* Negative serum pregnancy test for female subjects
* Male subjects and female subjects of childbearing potential must agree to use contraception
* Able to comply with the dosing instructions for study drug and able to complete the study schedule of assessments, including all required post treatment visits

Exclusion Criteria:

* Serious or active medical or psychiatric illness
* HIV or hepatitis B viral (HBV) infection
* Stomach disorder that could interfere with the absorption of the study drug
* Treated with an anti-HCV medication in the last 30 days
* Any prior exposure to an HCV nonstructural protein (NS)5a-specific inhibitor
* Use of human granulocyte-macrophage colony-stimulating factor (GM-CSF), epoetin alfa or other therapeutic hematopoietic agents within 2 weeks of screening
* History of clinically significant medical condition associated with other chronic liver disease
* Active spontaneous bacterial peritonitis at screening
* Females who are breastfeeding
* Infection requiring systemic antibiotics
* Participated in a clinical study with an investigational drug or biologic within the last 30 days
* Active or history (last 6 months) of drug or alcohol abuse
* History of organ transplant other than liver or kidney
B: Inclusion Criteria:

* Age equal to or greater than 18 years, with chronic genotype 1 HCV infection
* HCV RNA ≥ 10,000 IU/mL at screening
* Prior virological failure after treatment with pegylated interferon (PEG-IFN), RBV and a protease inhibitor following documented prior virology failure after treatment with a PEG-IFN + RBV regimen
* Evidence of cirrhosis
* 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
* Current or prior history of clinical hepatic decompensation
* Prior exposure to approved or experimental HCV specific direct-acting antivirals other than a nonstructural protein (NS)3/4A protease inhibitor
* History of solid organ transplantation, including liver transplant
* Hepatocellular carcinoma 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
C: Inclusion Criteria:

* Age at entry at least 18 years.
* Positive for Hepatitis C.
* Previous treatment with any interferon or interferon and ribavirin for at least 3 months.
* Documented non-response to treatment with interferon.
* A liver biopsy demonstrating significant liver scarring.

Exclusion Criteria:

* No other liver disease.
* No unstable major medical diseases or conditions.
* No major complications of cirrhosis.
* No recent abuse of alcohol or illicit drugs.
D: Inclusion Criteria:

* Age between 18 and 85
* Receiving no treatment before diagnosis
* Establishing Diagnosis according to the Asian Pacific Association for the Study of Liver(APASL) criteria

Exclusion Criteria:

* Clinical data missing
* Laboratory tests information missing
* Serum samples doesn't qualified
* Obstructive jaundice patients
* Medical history of taking warfarin

Answer: C