DISEASE CHARACTERISTICS:

• Histologically proven stage IC, II, III, or IV ovarian epithelial carcinoma or primary peritoneal serous carcinoma

• Prior complete response to 1 platinum-based chemotherapy regimen consisting of at least 5 courses

  • Absence of disease on physical and radiological exam (CT scan/MRI)
  • CA 125 normal
  • No visible evidence of malignant disease on second-look laparoscopy
• No disease relapse even if complete response to a second course of chemotherapy
• Prior bilateral oophorectomy with or without salpingectomy, omentectomy, and total or partial abdominal hysterectomy required
• No known metastases

PATIENT CHARACTERISTICS:

Age:

• 18 and over

Performance status:

• ECOG 0-2

Life expectancy:

• At least 3 months

Hematopoietic:

• WBC at least 3,000/mm^3
• Platelet count at least 100,000/mm^3
• Hemoglobin at least 10.0 g/dL

Hepatic:

• SGOT/SGPT no greater than 2 times upper limit of normal

Renal:

• Creatinine no greater than 2.0 mg/dL

Other:

• No other malignancy except basal cell skin cancer
• No serious physical or psychiatric disease that would preclude study entry
• No significant loculation that would preclude good distribution of study medication
• Human antimouse antibody negative

PRIOR CONCURRENT THERAPY:

Biologic therapy:

• No prior murine antibody

Chemotherapy:

• See Disease Characteristics
• No more than 4-8 weeks since prior chemotherapy

Endocrine therapy:

• Not specified

Radiotherapy:

• Not specified

Surgery:

• See Disease Characteristics

Other:

• No concurrent participation in other trials involving adjuvant cancer treatment
• No other concurrent experimental therapies