PATIENT CHARACTERISTICS: Age: Not specified Sex: Female Performance status: Not specified Hematopoietic: Neutrophil count greater than 2,000/mm3 Platelet count greater than 100,000/mm3 No evidence of sepsis Hepatic: Adequate hepatic function Bilirubin normal AST/ALT normal Renal: Adequate renal function Creatinine less than 1.2 mg/dL Cardiovascular: No clinically significant cardiovascular disease Other: No prior or concurrent other malignancy except adequately treated basal or squamous cell carcinoma of the skin or in situ carcinoma of the cervix Not pregnant or nursing Fertile patients must use effective contraception