Single Arm Trial With Combination of Everolimus and Letrozole in Treatment of Platinum Resistant Relapse or Refractory or Persistent Ovarian Cancer/Endometrial Cancer

The purpose of the study is to determine if the combination of Everolimus and Letrozole is effective in the treatment of women with either recurrent or persistent epithelial ovarian, fallopian tube, primary peritoneal or endometrial cancer. Experiments have shown that everolimus (Afinitor®) can prevent cells such as cancer from growing in number. Therefore, everolimus (Afinitor®) is being tested in specific diseases to stop cells from growing too fast (as in cancer). Everolimus (Afinitor®) has been FDA approved for adults with advanced kidney cancer (Renal Cell Carcinoma). Everolimus (Afinitor®) received approval for patients with subependymal giant cell astrocytoma (SEGA), a brain tumor seen with genetic conditions called tuberous sclerosis complex (TSC) who require therapy, but are not candidates for surgery. Everolimus (Afinitor®) was approved for pancreatic neuroendocrine tumor (PNET) in patients with unresectable, locally advanced, or metastatic disease. Everolimus (Afinitor®) received approval for the treatment of postmenopausal women with advanced hormone receptor-positive, HER2- negative breast cancer (advanced HR+ BC) in combination with exemestane, after failure of treatment with letrozole or anastrozole. Everolimus (Afinitor®) also received approval for the treatment of patients with TSC who have renal angiomyolipoma not requiring immediate surgery. Everolimus (Afinitor®) has been used to treat patients in clinical studies since 2002 and approximately 25,645 patients (as of 30-Sep-2012) have been treated with everolimus (Afinitor®).