- Patients must have adequate bone marrow function (defined as peripheral leucocyte count > 4000 cells/mm3 and platelet count > 100,000 cells/mm3), liver function (bilirubin < 2.0 mg and SGOT < 2 times upper limit of normal), and adequate renal function (serum creatinine < 1.5 mg/dl or creatinine clearance > 50 cc/min/1.73M2)