PATIENT CHARACTERISTICS: Age: 18 and over Performance status: GOG 0-2 Hematopoietic: WBC at least 3,000/mm3 Absolute granulocyte count at least 1,500/mm3 Platelet count at least 100,000/mm3 Hepatic: Bilirubin no greater than 1.5 times normal AST, ALT, and GGT no greater than 3 times normal Alkaline phosphatase no greater than 3 times normal LDH no greater than 3 times normal No acute hepatitis Renal: Creatinine no greater than 2 mg/dL Cardiovascular: No history of congestive heart failure No history of unstable angina No myocardial infarction within 6 months Other: No severe infection, including septicemia No severe gastrointestinal bleeding No history of second malignancy within 5 years except nonmelanomatous skin cancer Not pregnant or nursing Fertile patients must use effective contraception