PATIENT CHARACTERISTICS: Age: 18 and over Performance status: Karnofsky 60%-100% Hematopoietic: WBC at least 4,000 Platelets at least 150,000 Hb at least 10 g/dL Hepatic: Not specified Renal: Creatinine normal OR Creatinine clearance at least 65 mL/min Nutrition: Recommended oral intake requirements (by mouth or tube feeding): More than 1.5 x Basal Energy Expenditure (BEE) measured by Harris- Benedict equation OR More than 1,000 calories/sqm of body surface area (BSA) Intravenous hyperalimentation (recommended if inadequate oral intake): 1.75-2.25 x BEE OR 1,200-1,600 calories/sqm BSA Upper limits may be waived for hypermetabolic patients Other: No second malignancy within 5 years except: Curable nonmelanomatous skin cancer Cervical cancer in situ No pregnant or nursing women