PATIENT CHARACTERISTICS: Age: 18 and over Performance status: Karnofsky 70-100% ECOG 0-1 Life expectancy: Not specified Hematopoietic: Platelet count at least 150,000/mm3 Granulocyte count at least 1500/mm3 Hepatic: Bilirubin less than 1.5 times normal SGOT and alkaline phosphatase less than 2 times normal Renal: Creatinine less than 1.5 mg/dL OR Creatinine clearance at least 60 mL/ min Cardiovascular: LVEF at least 50% No New York Heart Association class II or IV heart disease No serious cardiac arrhythmias, including first, second, or third degree heart block Other: No concurrent second malignancy except nonmelanomatous skin cancer or curatively treated in situ carcinoma of the cervix No uncontrolled infection Fertile patients must use barrier method contraception before, during, and for 6 months after therapy and are encouraged to continue barrier method contraception for 2 years or longer