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Novel Agents for the Management of Endocrine Resistant Breast Cancer

Novel Agents for the Management of Endocrine Resistant Breast Cancer Purpose of Review Most women with hormone receptor (HR)-positive, HER2-negative (HR+/HER2−) breast cancer will ulti- mately develop endocrine-resistant disease, either primary or acquired. This review will discuss the proposed mechanisms underlying endocrine resistance and key advances in the treatment of endocrine-resistant breast cancer. Recent Findings Estrogen receptor 1 mutations (ESR1) occur in the majority of patients with HR+/HER2− metastatic breast cancer after prolonged exposure to aromatase inhibitors. Data from the SoFEA trial showed that patients had improved progression-free survival (PFS) after taking fulvestrant compared with exemestane. Fulvestrant is currently the only selective estrogen receptor degrader (SERD) available and development of oral novel SERDs with higher bioavailability and potency are currently being investigated. Summary Despite significant advances in the treatment of HR+/HER2− breast cancer over the past four decades, a significant proportion of patients do still develop endocrine resistance following optimal endocrine therapy. In this review, we aim to provide an overview of the different classes of novel agents currently being investigated to overcome endocrine resistance. . . . . . Keywords Hormone receptor positive Breast cancer Endocrine resistance Aromatase inhibitor SERD ESR1 Introduction endocrine therapy-based systemic therapies such as cytotoxic chemotherapy. Targeted therapy that can overcome or delay Hormone http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Current Breast Cancer Reports Springer Journals

Novel Agents for the Management of Endocrine Resistant Breast Cancer

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References (37)

Publisher
Springer Journals
Copyright
Copyright © 2018 by Springer Science+Business Media, LLC, part of Springer Nature
Subject
Medicine & Public Health; Oncology; Internal Medicine; Surgical Oncology
ISSN
1943-4588
eISSN
1943-4596
DOI
10.1007/s12609-018-0298-3
Publisher site
See Article on Publisher Site

Abstract

Purpose of Review Most women with hormone receptor (HR)-positive, HER2-negative (HR+/HER2−) breast cancer will ulti- mately develop endocrine-resistant disease, either primary or acquired. This review will discuss the proposed mechanisms underlying endocrine resistance and key advances in the treatment of endocrine-resistant breast cancer. Recent Findings Estrogen receptor 1 mutations (ESR1) occur in the majority of patients with HR+/HER2− metastatic breast cancer after prolonged exposure to aromatase inhibitors. Data from the SoFEA trial showed that patients had improved progression-free survival (PFS) after taking fulvestrant compared with exemestane. Fulvestrant is currently the only selective estrogen receptor degrader (SERD) available and development of oral novel SERDs with higher bioavailability and potency are currently being investigated. Summary Despite significant advances in the treatment of HR+/HER2− breast cancer over the past four decades, a significant proportion of patients do still develop endocrine resistance following optimal endocrine therapy. In this review, we aim to provide an overview of the different classes of novel agents currently being investigated to overcome endocrine resistance. . . . . . Keywords Hormone receptor positive Breast cancer Endocrine resistance Aromatase inhibitor SERD ESR1 Introduction endocrine therapy-based systemic therapies such as cytotoxic chemotherapy. Targeted therapy that can overcome or delay Hormone

Journal

Current Breast Cancer ReportsSpringer Journals

Published: Nov 15, 2018

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