PRIOR CONCURRENT THERAPY: Biologic therapy: At least 6 weeks since prior immunotherapy No prior murine monoclonal antibodies for diagnostic or therapeutic purposes Chemotherapy: No more than 1 prior regimen of chemotherapy (change in chemotherapy agents is permitted during primary therapy provided that the change is considered to be part of initial chemotherapy regimen) At least 4 weeks since prior chemotherapy Endocrine therapy: Not specified Radiotherapy: At least 4 weeks since prior abdominal, abdominopelvic, or pelvic radiotherapy Surgery: At least 4 weeks since prior surgery No more than 1 interval debulking procedure