Efficacy Multicentre Trial of ImmunoTherapy Vaccination With Abagovomab to Treat Ovarian Cancer Patients

Inclusion Criteria:

At a maximum of 12 weeks after the last cycle of first line standard platinum/taxane intravenous (IV) or intraperitoneal (IP) chemotherapy, patients must fulfill all the following inclusion criteria:

* Age \>/= 18 years;
* Properly executed written informed consent;
* History of histological and CA125 (\> 35 U/ml) confirmed diagnosis of stage III-IV epithelial ovarian, fallopian tube, or primary peritoneal cancer;
* History of debulking surgery and 6-8 cycles of standard platinum/taxane based non-investigational IV-IP chemotherapy;
* Complete clinical response defined as:
* Normal physical examination;
* No symptoms suggestive of persistent cancer;
* No definite evidence of disease by computed tomography (CT) of the abdomen and pelvis within the previous 4 weeks;
* Negative chest x-ray (or chest CT scan) within the previous 4 weeks;
* Serum CA125 within the normal laboratory range.
* Adequate hematologic, renal and hepatic function:

  * Absolute Neutrophil Count (ANC) \>/=1.5 \* 109/l;
  * Platelets \>/= 75 \* 109/l;
  * Haemoglobin \>/= 6.2 mmol/l (\>9.9 g/dl);
  * Serum creatinine \</= 1.5 \* ULN (Upper Limit of Normal);
  * Bilirubin \</= 1.5 \* ULN; AST, ALT, AP \</= 2.5 \* ULN.
* Eastern Cooperative Oncology Group (ECOG) Performance Status (PS) \</= 2.

Exclusion Criteria:

Patients are ineligible to participate in the study, if any of the following criteria are present:

* any other invasive malignancies, with the exception of non-melanoma skin cancer or cervical carcinoma in situ, within the last 5 years or whose previous cancer treatment contraindicates this protocol therapy;
* known active autoimmune disease requiring chronic treatment with immunosuppressive agents (e.g., rheumatoid arthritis, ulcerative colitis, etc.);
* known immune deficiency (e.g. HIV, hypogammaglobulinemia, etc.);
* known infection with hepatitis B, or hepatitis C;
* history of recent myocardial infarction (\</= 6 months) or decompensated heart failure (New York Heart Association - NYHA class \>/= III);
* previous or concomitant use of any anti-cancer therapy other than the platinum-taxane based 1st line chemotherapy for ovarian cancer; any maintenance or consolidation therapy is not permitted after completion of standard front line chemotherapy.
* concomitant use of any other investigational agent;
* any prior investigational anti-cancer vaccine or monoclonal antibody;
* known allergy to murine proteins;
* any significant medical or psychiatric condition, drug or alcohol abuse that might prevent the patient from complying with all study procedures;
* clinically significant active infection;
* concomitant use of any immunosuppressive agent (e.g., steroids, cyclosporin, etc.);
* major surgery within the previous 2 weeks;
* radiotherapy within the previous 4 weeks;
* any significant toxicity from prior chemotherapy;
* unreliability or inability to follow protocol requirements;
* potentially childbearing and not willing to use adequate contraceptive methods throughout the entire study period;
* pregnancy.