- Blood chemistry within 7 days before randomization:Total bilirubin ≤1x Upper Normal Limit(UNL), Aspartate Aminotransferase (AST) Serum Glutamic Oxaloacetic Transaminase SGOT) and Alanine Aminotransferase (ALT)Serum Glutamate Pyruvate Transaminase(SGPT) ≤2.5xUNL, alkaline phosphatase ≤ 5x UNL, provided that AST or ALT > 1.5 x UNL is not associated with alkaline phosphatase > 2.5 x UNL; creatinine ≤1.25x UNL or 1.25x UNL < creatinine ≤1.5x UNL and calculated/measured creatinine clearance ≥60 ml/min)