Safety and Efficacy Study of Catumaxomab to Treat Ovarian Cancer After a Complete Response to Chemotherapy

Inclusion Criteria:

Signed and dated informed consent form before any protocol-specific screening procedures
Histologically confirmed diagnosis of epithelial ovarian cancer, fallopian tube, or primary peritoneal cancer, Fédération Internationale de Gynécologie et d'Obstétrique (FIGO) stage IIb - IV
Optimal or sub-optimal cytoreductive surgery
Clinical complete response to platinum and taxane-based therapy consisting of at least four cycles, based on computed tomography (CT) scan and a CA-125 (cancer antigen 125) level below 35 U/mL
Age ≥18 years
Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1
Last dose of platinum and taxane-based therapy completed within 6 weeks prior to the start of catumaxomab treatment
Negative serum pregnancy test result at screening in women of childbearing potential (applies to patients without documented menopause or sterility)
Willingness of patients of childbearing potential to use an effective contraceptive method (i.e. oral contraceptive, cervical cap, diaphragm with spermicide, condom with spermicide, or intrauterine device) during the study and for at least 6 months after the last infusion

Exclusion Criteria:

Acute or chronic systemic infection
Exposure to chemotherapy, radiotherapy, immunotherapy or investigational anti-cancer therapy within 6 weeks of first dose of catumaxomab other than last regimen of platinum and taxane chemotherapy as outlined in protocol
Known human immunodeficiency virus (HIV) infection
Previous treatment with non-humanized murine (rat or mouse) monoclonal antibodies (mAb)
Inadequate renal function (creatinine > 1.5 x upper limit of normal [ULN])

Inadequate hepatic function:

Alanine aminotransferase (ALT) > 2.5 x ULN or
Aspartate aminotransferase (AST) > 2.5 x ULN or
Bilirubin > 1.5 x ULN
Platelets < 100,000 cells/mm^3
Absolute neutrophil count (ANC) < 1,500 cells/mm^3
History of myocardial infarction, congestive heart failure or relevant cardiac arrhythmia within the last 6 months
No other malignancy within the past 5 years except non-melanoma skin cancer or carcinoma in situ of the cervix if adequately treated
No history of brain metastases
Any further condition or disease that would, in the opinion of the Investigator, expose the patient to undue risk