5. Patients must have normal hepatic function test and no prior liver disease: The screening results for total bilirubin must be < 1.5 times the upper limit of normal. The screening results for the following must be < 2 times the upper limit of normal for patients to be eligible: Alkaline phosphatase (ALP) and Alanine aminotransferase (ALT). The screening results for Aspartate aminotransferase (AST) must be < 2 times the upper limit of normal if available.