PATIENT CHARACTERISTICS: Age: 18 to 70 Performance status: WHO 0-2 Hematopoietic: WBC at least 3,500/mm3 Platelet count at least 100,000/mm3 Hepatic: Liver function tests no greater than 2 times normal Albumin 4.0-6.0 g/dL Renal: Creatinine clearance at least 60 mL/min Cardiovascular: Cardiac function normal by MUGA scan or echocardiogram Other: No other prior or concurrent malignancy except radically removed nonmelanomatous skin cancer