PMID- 33239910 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20201127 IS - 1179-1314 (Print) IS - 1179-1314 (Electronic) IS - 1179-1314 (Linking) VI - 12 DP - 2020 TI - Alpelisib in the Treatment of Breast Cancer: A Short Review on the Emerging Clinical Data. PG - 251-258 LID - 10.2147/BCTT.S219436 [doi] AB - Hormone receptor positive, human epidermal growth factor receptor 2 negative (HR+/HER2 negative) breast cancer accounts for over 70% of all breast cancers. There has been much advancement in the treatment of HR+/HER2 negative metastatic breast cancer (MBC), in particular the development of more tailored and targeted therapies. Recently, greater understanding of the role of phosphatidylinositol 3-kinase (PI3K)/AKT/mammalian target of rapamycin (mTOR) pathway in breast cancer has led to the development of PI3K inhibitors, which have proven to be effective in the treatment of HR+/HER2 negative MBC. In this review, we will discuss the role of the PI3K/AKT/mTOR pathway in breast cancer and therapies that have been developed to inhibit PI3K. We will discuss in detail the development of PI3K inhibitor alpelisib, indications for use in HR+/HER2 negative MBC, safety and tolerability and the future direction of this therapy in the treatment of breast cancer. CI - (c) 2020 Armaghani and Han. FAU - Armaghani, Avan J AU - Armaghani AJ AD - Department of Breast Oncology, Moffitt McKinley Outpatient Center, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL 33612, USA. FAU - Han, Hyo Sook AU - Han HS AD - Department of Breast Oncology, Moffitt McKinley Outpatient Center, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL 33612, USA. LA - eng PT - Journal Article PT - Review DEP - 20201118 PL - New Zealand TA - Breast Cancer (Dove Med Press) JT - Breast cancer (Dove Medical Press) JID - 101591856 PMC - PMC7680678 OTO - NOTNLM OT - PI3K OT - PIK3CA OT - alpelisib COIS- Dr Hyo Sook Han reports personal fees from Lilly, research funding to institution from Arvinas, Abbvie, BMS, Daiichi, G1 therapeutics, GSK, Horizon, Maker therapeutics, Novartis, Pfizer, Prescient, Seattle Genetics, Zymeworks, grants from Department of Defense, outside the submitted work. The authors report no other conflicts of interest in this work. EDAT- 2020/11/27 06:00 MHDA- 2020/11/27 06:01 PMCR- 2020/11/18 CRDT- 2020/11/26 05:44 PHST- 2020/08/06 00:00 [received] PHST- 2020/09/30 00:00 [accepted] PHST- 2020/11/26 05:44 [entrez] PHST- 2020/11/27 06:00 [pubmed] PHST- 2020/11/27 06:01 [medline] PHST- 2020/11/18 00:00 [pmc-release] AID - 219436 [pii] AID - 10.2147/BCTT.S219436 [doi] PST - epublish SO - Breast Cancer (Dove Med Press). 2020 Nov 18;12:251-258. doi: 10.2147/BCTT.S219436. eCollection 2020.