- Histologically confirmed diagnosis of metastatic or recurrent uterine cancer (endometrial carcinoma, carcinosarcoma, leiomyosarcoma, undifferentiated sarcoma, high grade endometrial stromal sarcoma) by Memorial Sloan Kettering Cancer Center. Carcinosarcomas that appears to have arisen in the ovary/fallopian tube are also eligible. Recurrence should not be amenable to curative approaches such as surgical resection or chemoradiotherapy.