- Patients must have adequate bone marrow function defined as an absolute peripheral granulocyte count of > 1,500/mm3 and platelet count of > 100,000/mm3; adequate hepatic function defined with a bilirubin of < 1.5 mg% and SGOT (AST) < 2X the upper limits of normal; adequate renal function defined as serum creatinine clearance > 40 cc/min (measured or calculated).