Everolimus and Letrozole in Treating Patients With Recurrent Hormone Receptor Positive Ovarian, Fallopian Tube, or Primary Peritoneal Cavity Cancer

Inclusion Criteria

• Histologically confirmed estrogen receptor positive (greater than 10%) recurrent ovarian, fallopian tube or primary peritoneal carcinoma in post-menopausal women; note: pure clear cell and pure mucinous carcinomas are ineligible; both platinum sensitive, platinum resistant and platinum refractory disease are eligible; no limitations in the number of prior regimens
• Patient has disease amenable to biopsy and is agreeable to undergo a biopsy; note: under unusual circumstances, submission of ascites material may be acceptable if a biopsy is not possible; this will require approval by one of the study principal investigators
• Measurable disease by Response Evaluation Criteria in Solid Tumors (RECIST) criteria
• Eastern Cooperative Oncology Group (ECOG) performance status (PS) 0, 1, or 2
• Absolute neutrophil count (ANC) >= 1500/mm^3
• Platelet count >= 100,000/mm^3
• Hemoglobin > 9.0 g/dL
• Total serum bilirubin = 8% despite adequate therapy; note: patients with a known history of impaired fasting glucose or diabetes mellitus (DM) may be included, however blood glucose and antidiabetic treatment must be monitored closely throughout the trial and adjusted as necessary
• Chronic treatment with corticosteroids or other immunosuppressive agents; note: topical or inhaled corticosteroids are allowed
• Patients who have received live attenuated vaccines =< 1 week prior to registration and during the study; note: patient should also avoid close contact with others who have received live attenuated vaccines; examples of live attenuated vaccines include intranasal influenza, measles, mumps, rubella, oral polio, Bacillus Calmette-Guerin (BCG), yellow fever, varicella and TY21a typhoid vaccines
• History of non-compliance to medical regimens or who are considered potentially unreliable or will not be able to complete the entire study
• Prior therapy with everolimus or an aromatase inhibitor
• Known brain metastasis
• Active and chronic viral hepatitis (i.e. quantifiable serum hepatitis B virus [HBV]-deoxyribonucleic acid [DNA] and/or positive hepatitis B virus surface antigen [HBsAg], or quantifiable hepatitis C virus [HCV]-ribonucleic acid [RNA] in serum)