Trisenox® in Women With Metastatic Endometrial Cancer

This is an open-label, single arm, single institution, phase II trial designed to assess the response rate and safety of Trisenox® in women with recurrent endometrial carcinoma. Trisenox® will be administered at a dose of 0.25 mg/kg/day for 5 consecutive days (D1-5) every 4 weeks. A 4-week period will be defined as a cycle of treatment. Marker and non-marker lesions will be assessed every 2 cycles (every 8 weeks) and the response assigned according to Gynecologic Oncology Group (GOG) RECIST guidelines. Safety will be assessed by routine physical, laboratory and ECG evaluations. Up to 10 patients will be enrolled into the study. Patients are expected (excluding any unforeseen toxicities) to receive a minimum of 2 and a maximum of 6 cycles of Trisenox®. (Patients with at least documented stable disease may be eligible for \>6 cycles). Patients will be followed for 6 months after their last dose of Trisenox®. For this trial we would allow one prior cytotoxic regimen since the time of recurrence and patients may have had one prior regimen as part of their induction chemotherapy. Patients will be treated with 0.25 mg/kg/day for days 1-5 every 28 days and patients may remain on trial until progression of disease.