PMID- 25848360 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20150407 LR - 20220316 IS - 1662-6575 (Print) IS - 1662-6575 (Electronic) IS - 1662-6575 (Linking) VI - 8 IP - 1 DP - 2015 Jan-Apr TI - A Case of Disease Improvement after Treatment with Everolimus plus Exemestane in a Patient with Hormone Receptor-Positive Metastatic Breast Cancer with Bone Metastases. PG - 101-5 LID - 10.1159/000375119 [doi] AB - Breast cancer is one of the most frequently diagnosed cancers and a leading cause of death in women worldwide. Despite significant advances in the treatment of hormone receptor-positive breast cancer, tumor metastasis occurs frequently and is associated with poor long-term prognosis. The mammalian target of rapamycin (mTOR) pathway plays a central role in cancer cell growth, proliferation, and resistance to endocrine therapies. Therefore, mTOR inhibitors such as everolimus in combination with nonsteroidal aromatase inhibitors might reverse endocrine resistance and improve clinical outcomes in patients. Here, we report on a case of infiltrating lobular carcinoma of the breast with metastases to the bone. Histopathologic analysis showed that the patient was estrogen and progesterone receptor positive and human epidermal growth factor-2 negative. This case represents the clinical spectrum of complications caused by metastasis: the patient experienced a considerable amount of skeletal-related complications, had previously received chemotherapy, and experienced disease progression while taking nonsteroidal aromatase inhibitors. After treatment with oral everolimus 10 mg daily plus oral exemestane 25 mg daily, the patient's disease was ameliorated. Combination therapy was well tolerated, with minimal adverse effects that were manageable with concomitant medications. Although further analyses in larger populations are necessary, the addition of everolimus to exemestane might provide an effective new treatment option for patients with bone metastasis. FAU - Beck, J Thaddeus AU - Beck JT AD - Highlands Oncology Group, Fayetteville, Ark., USA. FAU - Mantooth, Ryan AU - Mantooth R AD - Highlands Oncology Group, Fayetteville, Ark., USA. LA - eng PT - Case Reports DEP - 20150221 PL - Switzerland TA - Case Rep Oncol JT - Case reports in oncology JID - 101517601 PMC - PMC4361907 OTO - NOTNLM OT - Advanced breast cancer OT - Everolimus OT - Hormone receptor EDAT- 2015/04/08 06:00 MHDA- 2015/04/08 06:01 PMCR- 2015/02/21 CRDT- 2015/04/08 06:00 PHST- 2015/04/08 06:00 [entrez] PHST- 2015/04/08 06:00 [pubmed] PHST- 2015/04/08 06:01 [medline] PHST- 2015/02/21 00:00 [pmc-release] AID - cro-0008-0101 [pii] AID - 10.1159/000375119 [doi] PST - epublish SO - Case Rep Oncol. 2015 Feb 21;8(1):101-5. doi: 10.1159/000375119. eCollection 2015 Jan-Apr.