Interleukin-12 in Treating Patients With Advanced or Recurrent Cancer of the Cervix

DISEASE CHARACTERISTICS: Histologically proven stage IV or recurrent squamous cell, adenosquamous, or adenocarcinoma of the uterine cervix including: Lung, liver, lymph node, or skin metastases OR Retroperitoneal disease OR Other advanced measurable disease OR Positive paraaortic lymph nodes Measurable disease that is beyond the scope of conventional radiation therapy or surgery, or recurrent after radiation therapy or surgery Measurable, recurrent disease within a previously irradiated field must have increased in size by 100% on at least 2 successive scans, MRI, or physical examinations PATIENT CHARACTERISTICS: Age: 18 and over Performance status: ECOG 0-1 Life expectancy: Not specified Hematopoietic: WBC at least 3,000/mm3 OR Absolute neutrophil count at least 1,500/mm3 Platelet count at least 100,000/mm3 Hepatic: Bilirubin no greater than 1.5 times the upper limit of normal (ULN) AST and ALT no greater than 2 times ULN Renal: Creatinine no greater than 2.0 mg/dL Creatinine clearance at least 60 mL/min Cardiovascular: No New York Heart Association class III/IV heart disease No uncontrolled congestive heart failure or angina Pulmonary: No chronic obstructive pulmonary disease Gastrointestinal: No evidence of active gastrointestinal bleeding No active peptic ulcer disease No inflammatory bowel disease Other: Normal diet required No known active infections HIV negative AIDS-related complex (ARC) negative No substance abuse or psychiatric problems No evidence of autoimmune disease No other prior invasive malignancy except resected basal cell or squamous cell skin cancer Not pregnant or nursing Negative pregnancy test Fertile patients must use effective contraception PRIOR CONCURRENT THERAPY: Biologic therapy: 1 prior biologic therapy allowed At least 4 weeks since prior biologic therapy Chemotherapy: 1 prior adjuvant chemotherapy regimen allowed 1 prior chemotherapy regimen for advanced disease allowed At least 4 weeks since prior chemotherapy No concurrent chemotherapy Endocrine therapy: No concurrent steroid therapy No concurrent megestrol acetate Radiotherapy: See Disease Characteristics No concurrent radiotherapy Surgery: See Disease Characteristics At least 2 weeks since prior surgery