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Chen Q, Xiong J, Ma Y, Wei J, Liu C, Zhao Y. Systemic treatments for breast cancer brain metastasis. Front Oncol 2023; 12:1086821. [PMID: 36686840 PMCID: PMC9853531 DOI: 10.3389/fonc.2022.1086821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 12/16/2022] [Indexed: 01/07/2023] Open
Abstract
Breast cancer (BC) is the most common cancer in females and BC brain metastasis (BCBM) is considered as the second most frequent brain metastasis. Although the advanced treatment has significantly prolonged the survival in BC patients, the prognosis of BCBM is still poor. The management of BCBM remains challenging. Systemic treatments are important to maintain control of central nervous system disease and improve patients' survival. BCBM medical treatment is a rapidly advancing area of research. With the emergence of new targeted drugs, more options are provided for the treatment of BM. This review features currently available BCBM treatment strategies and outlines novel drugs and ongoing clinical trials that may be available in the future. These treatment strategies are discovered to be more efficacious and potent, and present a paradigm shift in the management of BCBMs.
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Affiliation(s)
| | | | | | | | - Cuiwei Liu
- *Correspondence: Cuiwei Liu, ; Yanxia Zhao,
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Cortés J, Rugo HS, Awada A, Twelves C, Perez EA, Im SA, Gómez-Pardo P, Schwartzberg LS, Diéras V, Yardley DA, Potter DA, Mailliez A, Moreno-Aspitia A, Ahn JS, Zhao C, Hoch U, Tagliaferri M, Hannah AL, O'Shaughnessy J. Prolonged survival in patients with breast cancer and a history of brain metastases: results of a preplanned subgroup analysis from the randomized phase III BEACON trial. Breast Cancer Res Treat 2017; 165:329-341. [PMID: 28612225 PMCID: PMC5543189 DOI: 10.1007/s10549-017-4304-7] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Accepted: 05/16/2017] [Indexed: 02/07/2023]
Abstract
Purpose Conventional chemotherapy has limited activity in patients with breast cancer and brain metastases (BCBM). Etirinotecan pegol (EP), a novel long-acting topoisomerase-1 inhibitor, was designed using advanced polymer technology to preferentially accumulate in tumor tissue including brain metastases, providing sustained cytotoxic SN38 levels. Methods The phase 3 BEACON trial enrolled 852 women with heavily pretreated locally recurrent or metastatic breast cancer between 2011 and 2013. BEACON compared EP with treatment of physician’s choice (TPC; eribulin, vinorelbine, gemcitabine, nab-paclitaxel, paclitaxel, ixabepilone, or docetaxel) in patients previously treated with anthracycline, taxane, and capecitabine, including those with treated, stable brain metastases. The primary endpoint, overall survival (OS), was assessed in a pre-defined subgroup of BCBM patients; an exploratory post hoc analysis adjusting for the diagnosis-specific graded prognostic assessment (GPA) index was also conducted. Results In the trial, 67 BCBM patients were randomized (EP, n = 36; TPC, n = 31). Treatment subgroups were balanced for baseline characteristics and GPA indices. EP was associated with a significant reduction in the risk of death (HR 0.51; P < 0.01) versus TPC; median OS was 10.0 and 4.8 months, respectively. Improvement in OS was observed in both poorer and better GPA prognostic groups. Survival rates at 12 months were 44.4% for EP versus 19.4% for TPC. Consistent with the overall BEACON population, fewer patients on EP experienced grade ≥3 toxicity (50 vs. 70%). Conclusions The significant improvement in survival in BCBM patients provides encouraging data for EP in this difficult-to-treat subgroup of patients. A phase three trial of EP in BCBM patients is underway (ClinicalTrials.gov NCT02915744). Electronic supplementary material The online version of this article (doi:10.1007/s10549-017-4304-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Javier Cortés
- Ramon y Cajal University Hospital, Madrid, Spain, and Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | - Hope S Rugo
- University of California, San Francisco, CA, USA
| | - Ahmad Awada
- Medical Oncology Clinic, Jules Bordet Institute, Brussels, Belgium
| | - Chris Twelves
- Leeds Institute of Cancer and Pathology and St James's University Hospital, Leeds, UK
| | | | - Seock-Ah Im
- Seoul National University Hospital, Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | | | | | | | | | - David A Potter
- Department of Medicine, Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA
| | | | - Alvaro Moreno-Aspitia
- Ramon y Cajal University Hospital, Madrid, Spain, and Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | - Jin-Seok Ahn
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Carol Zhao
- Nektar Therapeutics, San Francisco, CA, USA
| | - Ute Hoch
- Nektar Therapeutics, San Francisco, CA, USA
| | | | | | - Joyce O'Shaughnessy
- Texas Oncology-Baylor Charles A. Sammons Cancer Center/U.S. Oncology, 3410 Worth Street, Suite 400, Dallas, TX, 75246, USA.
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