- Patients must have adequate organ function including: Hepatic function with Bilirubin <2x the upper limit of normal and ALT and AST < 3 x the upper limit of normal; renal function with creatinine clearance ≥ 60 ml/min using the Cockcroft-Gault formula; hematologic function as defined by an absolute neutrophil count > 1000 neutrophils per microliter, platelet > 50,000 platelets per microliter and hemoglobin of ≥ 9 gm/dL without transfusion support