PATIENT CHARACTERISTICS: Age: 13 and over Performance status: GOG 0-2 Life expectancy: Not specified Hematopoietic: WBC at least 3,000/mm3 Platelet count at least 100,000/mm3 Granulocyte count at least 1,500/mm3 Hepatic: Bilirubin no greater than 1.5 mg/dL SGOT/SGPT no greater than 2.5 times upper limit of normal (ULN) Alkaline phosphatase no greater than 2.5 times ULN Renal: Creatinine no greater than 1.5 mg/dL Other: No significant infection Not pregnant Fertile patients must use effective contraception At least 5 years since prior malignancy; no prior chemotherapy or radiotherapy for that malignancy No concurrent malignancy other than non-melanoma skin cancer