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Liu J, Tan Y, Bi Z, Huang S, Zhang N, Zhang AD, Zhao L, Wang Y, Liang Z, Hou Y, Xu X, Chen J, Wang F, Lan X, Lin X, Zhang X, Zhou W, Ye X, Guo JG, Wang X, Ding R, Chen J, Huang X. Recur Index- Guided postoperative radiotherapy with or without Avoidance of Irradiation of regional Nodes in 1-3 node-positive breast cancer (RIGAIN): a study protocol for a multicentre, open-label, randomised controlled prospective, phase III trial. BMJ Open 2024; 14:e078049. [PMID: 39079921 PMCID: PMC11293409 DOI: 10.1136/bmjopen-2023-078049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 05/29/2024] [Indexed: 08/03/2024] Open
Abstract
INTRODUCTION Postoperative radiotherapy in patients with breast cancer with one to three lymph node metastases, particularly within the pT1-2N1M0 cohort with a low clinical risk of local-regional recurrence (LRR), has incited a discourse surrounding personalised treatment strategies. Multigene testing for Recurrence Index (RecurIndex) model capably differentiates patients based on their level of LRR risk. This research aims to validate whether a more aggressive treatment approach can enhance clinical outcomes in N1 patients who possess a clinically low risk of LRR, yet a high RecurIndex-determined risk of LRR. Specifically, this entails postoperative whole breast irradiation combined with regional lymph node irradiation (RNI) following breast-conserving surgery or chest wall irradiation with RNI after mastectomy. METHODS AND ANALYSIS The RIGAIN (RecurIndex-Guided postoperative radiotherapy with or without Avoidance of Irradiation of regional Nodes in 1-3 node-positive breast cancer) Study is a multicentre, prospective, randomised, open-label, phase III clinical trial that is being conducted in China. In this study, patients with low clinical LRR risk but high RecurIndex-LRR risk are randomly assigned in a 1:1 ratio to the experimental group or the control group. In the experimental group, RNI is performed and the control group omits RNI. Efficacy and safety analyses will be conducted, enrolling a total of 540 patients (270 per group). The primary endpoint is invasive disease-free survival, and secondary endpoints include any first recurrence, LRR-free survival, distant metastasis-free survival, recurrence-free survival, overall survival, disease-free survival, breast cancer-specific mortality and assessment of patient quality of life. The study began in April 2023 and with a follow-up period of 60 months after the last participant completes radiation therapy. ETHICS AND DISSEMINATION The study was approved by the Ethics Committee of Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University (SYSKY-2022-097-02, V.3.1). It adheres to the Helsinki Declaration and Good Clinical Practice. Research findings will be submitted for publication in peer-reviewed journals. TRIAL REGISTRATION NUMBER NCT04069884.
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Affiliation(s)
- Jing Liu
- Department of Radiation Oncology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China
- Department of Radiotherapy for Breast Tumor, Yat-Sen Breast Tumor Hospital, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Yuting Tan
- Department of Radiotherapy for Breast Tumor, Yat-Sen Breast Tumor Hospital, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Zhuofei Bi
- Department of Radiation Oncology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Suning Huang
- Department of Radiotherapy, Guangxi Medical University Cancer Hospital, Nanning, Guangxi Zhuang Autonomous Region, China
| | - Na Zhang
- Department of Radiation Oncology, Liaoning Cancer Hospital & Institute, Shenyang, Liaoning, China
| | - An-du Zhang
- Department of Radiation Oncology, The fourth hospital of hebei medical university, Shijiazhuang, Hebei, China
| | - Lina Zhao
- Department of Radiation Oncology, Xijing Hospital, Xian, Shaanxi, China
| | - Yu Wang
- Department of Radiation Oncology, Shanxi Provincial Cancer Hospital, Taiyuan, Shanxi, China
| | - Zibin Liang
- Department of Thoracic Oncology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, Guangdong, China
| | - Yu Hou
- Department of Radiation Oncology, Peking University Cancer Hospital Yunnan / Yunnan Cancer Hospital / The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Xiangying Xu
- Department of Radiation Oncology, Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Jianying Chen
- Department of Radiotherapy for Breast Tumor, Yat-Sen Breast Tumor Hospital, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Fei Wang
- State Key Laboratory of Neurology and Oncology Drug Development, Jiangsu Simcere Pharmaceutical Research Company, Nanjing, Jiangsu, China
| | - Xiaowen Lan
- Department of Radiation Oncology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Xiao Lin
- Department of Radiotherapy for Breast Tumor, Yat-Sen Breast Tumor Hospital, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Xiaoxue Zhang
- Department of Radiotherapy for Breast Tumor, Yat-Sen Breast Tumor Hospital, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Wenyi Zhou
- Department of Radiotherapy for Breast Tumor, Yat-Sen Breast Tumor Hospital, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Xuting Ye
- Department of Radiation Oncology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Jian-gui Guo
- Department of Breast Oncology, The First People’s Hospital of Foshan, Foshan, Guangdong, China
| | - Xiaohong Wang
- The sixth department of chemoradiotherapy, Tangshan People's Hospital, Tangshan, Hebei, China
| | - Ran Ding
- State Key Laboratory of Neurology and Oncology Drug Development, Jiangsu Simcere Pharmaceutical Research Company, Nanjing, Jiangsu, China
| | - Jiayi Chen
- Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Xiaobo Huang
- Department of Radiation Oncology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China
- Department of Radiotherapy for Breast Tumor, Yat-Sen Breast Tumor Hospital, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China
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Bleaney CW, Abdelaal H, Reardon M, Anandadas C, Hoskin P, Choudhury A, Forker L. Clinical Biomarkers of Tumour Radiosensitivity and Predicting Benefit from Radiotherapy: A Systematic Review. Cancers (Basel) 2024; 16:1942. [PMID: 38792019 PMCID: PMC11119069 DOI: 10.3390/cancers16101942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 04/18/2024] [Accepted: 05/16/2024] [Indexed: 05/26/2024] Open
Abstract
Modern advanced radiotherapy techniques have improved the precision and accuracy of radiotherapy delivery, with resulting plans being highly personalised based on individual anatomy. Adaptation for individual tumour biology remains elusive. There is an unmet need for biomarkers of intrinsic radiosensitivity that can predict tumour response to radiation to facilitate individualised decision-making, dosing and treatment planning. Over the last few decades, the use of high throughput molecular biology technologies has led to an explosion of newly discovered cancer biomarkers. Gene expression signatures are now used routinely in clinic to aid decision-making regarding adjuvant systemic therapy. They have great potential as radiotherapy biomarkers. A previous systematic review published in 2015 reported only five studies of signatures evaluated for their ability to predict radiotherapy benefits in clinical cohorts. This updated systematic review encompasses the expanded number of studies reported in the last decade. An additional 27 studies were identified. In total, 22 distinct signatures were recognised (5 pre-2015, 17 post-2015). Seventeen signatures were 'radiosensitivity' signatures and five were breast cancer prognostic signatures aiming to identify patients at an increased risk of local recurrence and therefore were more likely to benefit from adjuvant radiation. Most signatures (15/22) had not progressed beyond the discovery phase of development, with no suitable validated clinical-grade assay for application. Very few signatures (4/17 'radiosensitivity' signatures) had undergone any laboratory-based biological validation of their ability to predict tumour radiosensitivity. No signatures have been assessed prospectively in a phase III biomarker-led trial to date and none are recommended for routine use in clinical guidelines. A phase III prospective evaluation is ongoing for two breast cancer prognostic signatures. The most promising radiosensitivity signature remains the radiosensitivity index (RSI), which is used to calculate a genomic adjusted radiation dose (GARD). There is an ongoing phase II prospective biomarker-led study of RSI/GARD in triple negative breast cancer. The results of these trials are eagerly anticipated over the coming years. Future work in this area should focus on (1) robust biological validation; (2) building biobanks alongside large radiotherapy randomised controlled trials with dose variance (to demonstrate an interaction between radiosensitivity signature and dose); (3) a validation of clinical-grade cost-effective assays that are deliverable within current healthcare infrastructure; and (4) an integration with biomarkers of other determinants of radiation response.
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Affiliation(s)
- Christopher W. Bleaney
- Translational Radiobiology Group, Division of Cancer Sciences, The Oglesby Cancer Research Building, The University of Manchester, 555 Wilmslow Road, Manchester M20 4GJ, UK (L.F.)
- Department of Clinical Oncology, The Christie NHS Foundation Trust, 550 Wilmslow Road, Manchester M20 4BX, UK
| | - Hebatalla Abdelaal
- Department of Clinical Oncology, The Christie NHS Foundation Trust, 550 Wilmslow Road, Manchester M20 4BX, UK
| | - Mark Reardon
- Translational Radiobiology Group, Division of Cancer Sciences, The Oglesby Cancer Research Building, The University of Manchester, 555 Wilmslow Road, Manchester M20 4GJ, UK (L.F.)
| | - Carmel Anandadas
- Department of Clinical Oncology, The Christie NHS Foundation Trust, 550 Wilmslow Road, Manchester M20 4BX, UK
| | - Peter Hoskin
- Translational Radiobiology Group, Division of Cancer Sciences, The Oglesby Cancer Research Building, The University of Manchester, 555 Wilmslow Road, Manchester M20 4GJ, UK (L.F.)
- Department of Clinical Oncology, The Christie NHS Foundation Trust, 550 Wilmslow Road, Manchester M20 4BX, UK
| | - Ananya Choudhury
- Translational Radiobiology Group, Division of Cancer Sciences, The Oglesby Cancer Research Building, The University of Manchester, 555 Wilmslow Road, Manchester M20 4GJ, UK (L.F.)
- Department of Clinical Oncology, The Christie NHS Foundation Trust, 550 Wilmslow Road, Manchester M20 4BX, UK
| | - Laura Forker
- Translational Radiobiology Group, Division of Cancer Sciences, The Oglesby Cancer Research Building, The University of Manchester, 555 Wilmslow Road, Manchester M20 4GJ, UK (L.F.)
- Department of Clinical Oncology, The Christie NHS Foundation Trust, 550 Wilmslow Road, Manchester M20 4BX, UK
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Xie SJ, Wang RJ, Wu SG, Zhang FX. 21-gene recurrence score in predicting the outcome of postoperative radiotherapy in T1-2N1 luminal breast cancer after breast-conserving surgery. Breast 2024; 74:103679. [PMID: 38367283 PMCID: PMC10882169 DOI: 10.1016/j.breast.2024.103679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 01/22/2024] [Accepted: 02/05/2024] [Indexed: 02/19/2024] Open
Abstract
BACKGROUND In those with one to three positive lymph nodes (N1) breast cancer (BC), the 21-gene recurrence score (RS) classification can be referred for decision-making on adjuvant chemotherapy. This study aimed to investigate the effect of RS in predicting the survival benefit of postoperative radiotherapy (PORT) in T1-2N1 BC with estrogen receptor-positive and human epidermal growth factor receptor 2-negative disease after breast-conserving surgery (BCS). METHODS We included patients with BC and available RS data from the Surveillance, Epidemiology, and End Results Oncotype DX database. The chi-square test, Kaplan-Meier method, propensity score matching (PSM) as well as multivariable Cox proportional hazard analyses were used for statistical analyses. RESULTS We included 6509 patients in the analysis. Of these patients, 5302 (85.5%) were treated with BCS + PORT, and 207 (15.5%) had BCS alone. There were 1419 (21.8%), 4319 (66.4%), and 771 (11.8%) patients being low-, intermediate-, and high-risk RS, respectively. After PSM, PORT was significantly associated with a 5-year overall survival (OS) advantage (95.1% vs. 90.5%, P < 0.001) compared to those without PORT, which similar breast cancer-specific survival (BCSS) was found between the treatment arms (P = 0.126). The sensitivity analyses showed that PORT was not associated with a better BCSS (P = 0.472) and OS (P = 0.650) than those without PORT in the low-risk RS cohort. However, PORT was associated with a better BCSS (P = 0.031) and OS (P < 0.001) compared to those without PORT in the intermediate/high-risk RS cohorts. CONCLUSIONS Our study highlights the possible role of the RS in predicting the outcome of PORT in T1-2N1 luminal BC patients undergoing BCS.
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Affiliation(s)
- Shang-Jin Xie
- Department of General Surgery, Xiang'an Hospital of Xiamen University, Xiamen, 361005, People's Republic of China
| | - Run-Jie Wang
- Department of Radiation Oncology, Xiamen Cancer Center, Xiamen Key Laboratory of Radiation Oncology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361003, People's Republic of China
| | - San-Gang Wu
- Department of Radiation Oncology, Xiamen Cancer Center, Xiamen Key Laboratory of Radiation Oncology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361003, People's Republic of China.
| | - Fu-Xing Zhang
- Department of General Surgery, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361003, People's Republic of China.
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Novick K, Chadha M, Daroui P, Freedman G, Gao W, Hunt K, Park C, Rewari A, Suh W, Walker E, Wong J, Harris EE. American Radium Society Appropriate Use Criteria Postmastectomy Radiation Therapy: Executive Summary of Clinical Topics. Int J Radiat Oncol Biol Phys 2024; 118:458-465. [PMID: 37478956 DOI: 10.1016/j.ijrobp.2023.07.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 07/06/2023] [Accepted: 07/10/2023] [Indexed: 07/23/2023]
Abstract
PURPOSE To conduct an appropriate use criteria expert panel update on clinical topics relevant to current clinical practice regarding postmastectomy radiation therapy (PMRT). METHODS AND MATERIALS An analysis of the medical literature from peer-reviewed journals was conducted from May 4, 2010 to May 4, 2022 using the Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines to search the PubMed database to retrieve a comprehensive set of relevant articles. A well-established methodology (modified Delphi) was used by the expert panel to rate the appropriate use of procedures. RESULTS Evidence for key questions in PMRT regarding benefit in special populations and technical considerations for delivery was examined and described. Risk factors for local-regional recurrence in patients with intermediate-risk disease that indicate benefit of PMRT include molecular subtype, age, clinical stage, and pathologic response to neoadjuvant chemotherapy. Use of hypofractionated radiation in PMRT has been examined in several recent randomized trials and is under investigation for patients with breast reconstruction. The use of bolus varies significantly by practice region and has limited evidence for routine use. Adverse effects occurred with both PMRT preimplant and postimplant exchange in 2-staged breast reconstruction. CONCLUSIONS Most patients with even limited nodal involvement will likely benefit from PMRT with significant reduction in local-regional recurrence and potential survival. Patients with initial clinical stage III disease and/or any residual disease after neoadjuvant chemotherapy should be strongly considered for PMRT. Growing evidence supports the use of hypofractionated radiation for PMRT with equivalent efficacy and decreased acute side effects, but additional evidence is needed for special populations. There is limited evidence to support routine use of bolus in all patients. Timing of PMRT regarding completion of 2-staged breast reconstruction requires a discussion of increased risks with radiation postimplant exchange compared with increased risk of failure of reconstruction or surgical complications with radiation preimplant exchange.
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Affiliation(s)
- Kristina Novick
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, Pennsylvania.
| | - Manjeet Chadha
- Department of Radiation Oncology, Mount Sinai, New York, New York
| | - Parima Daroui
- Department of Radiation Oncology, Southern California Permanente Medical Group, Los Angeles, California
| | - Gary Freedman
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Wendy Gao
- Tacoma Valley Radiation Oncology Centers, Tacoma, Washington
| | - Kelly Hunt
- Department of Breast Surgical Oncology, MD Anderson Cancer Center, Houston, Texas
| | - Catherine Park
- Department of Radiation Oncology, University of California, San Francisco, California
| | - Amar Rewari
- Department of Radiation Oncology, Ann Arundel Medical Center, Annapolis, Maryland
| | - Warren Suh
- Department of Radiation Oncology, Ridely Tree Cancer Center, Santa Barbara, California
| | - Eleanor Walker
- Department of Radiation Oncology, Henry Ford Health, Detroit, Michigan
| | - Julia Wong
- Department of Radiation Oncology, Dana Farber Brigham Cancer Center, Boston, Massachusetts
| | - Eleanor E Harris
- Department of Radiation Oncology, St. Luke's University Health Network, Easton, Pennsylvania
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Jagsi R, Barlow WE, Woodward WA, Connolly E, Mahtani R, Shumway D, Speers C, Stecklein SR, Zeidan Y, Zhang H, Sharma P, Pusztai L, Hortobagyi GN, Kalinsky K. Radiotherapy Use and Incidence of Locoregional Recurrence in Patients With Favorable-Risk, Node-Positive Breast Cancer Enrolled in the SWOG S1007 Trial. JAMA Oncol 2023; 9:1083-1089. [PMID: 37410451 PMCID: PMC10326730 DOI: 10.1001/jamaoncol.2023.1984] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 04/18/2023] [Indexed: 07/07/2023]
Abstract
Importance Little is known about regional nodal irradiation (RNI) practice patterns or rates of locoregional recurrence (LRR) with and without RNI in patients with limited nodal disease and favorable biology treated with modern surgical and systemic therapy, including approaches that de-escalate those latter treatments. Objective To investigate how often patients with low-recurrence score breast cancer with 1 to 3 nodes involved receive RNI, incidence and predictors of LRR, and associations between locoregional therapy and disease-free survival. Design, Setting, and Participants In this secondary analysis of the SWOG S1007 trial, patients with hormone receptor-positive, ERBB2-negative breast cancer, and a Oncotype DX 21-gene Breast Recurrence Score assay result of no more than 25, were randomized to endocrine therapy alone vs chemotherapy then endocrine therapy. Prospectively collected radiotherapy information was collected from 4871 patients treated in diverse settings. Data were analyzed June 2022 to April 2023. Exposure Receipt of RNI (targeting at least the supraclavicular region). Main Outcome(s) and Measure(s) Cumulative incidence of LRR was calculated by locoregional treatment received. Analyses were assessed for associations between invasive disease-free survival (IDFS) and locoregional therapy, adjusted for menopausal status, treatment group, recurrence score, tumor size, nodes involved, and axillary surgery. Radiotherapy information was recorded in the first year after randomization, so survival analyses were landmarked as starting at 1 year among those still at risk. Results Of 4871 female patients (median [range] age, 57 [18-87] years) with radiotherapy forms, 3947 (81.0%) reported radiotherapy receipt. Of 3852 patients who received radiotherapy and had complete information on targets, 2274 (59.0%) received RNI. With a median follow-up of 6.1 years, the cumulative incidence of LRR by 5 years was 0.85% among patients who received breast-conserving surgery and radiotherapy with RNI; 0.55% after breast-conserving surgery with radiotherapy without RNI; 0.11% after mastectomy with postmastectomy radiotherapy; and 1.7% after mastectomy without radiotherapy. Similarly low LRR was observed within the group assigned to endocrine therapy without chemotherapy. The rate of IDFS did not differ by RNI receipt (premenopausal: hazard ratio [HR], 1.03; 95% CI, 0.74-1.43; P = .87; postmenopausal: HR, 0.85; 95% CI, 0.68-1.07; P = .16). Conclusions and Relevance In this secondary analysis of a clinical trial, RNI use was divided in the setting of biologically favorable N1 disease, and rates of LRR were low even in patients who did not receive RNI. Disease-free survival was not associated with RNI receipt; omission of chemotherapy among patients similar to those enrolled in the S1007 trial is not an independent indication for use of RNI.
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Affiliation(s)
- Reshma Jagsi
- Department of Radiation Oncology, Winship Cancer Institute of Emory University, Atlanta, Georgia
| | | | | | | | | | | | - Corey Speers
- Case Western Reserve University, Cleveland, Ohio
| | | | | | - Hong Zhang
- University of Rochester, Rochester, New York
| | | | | | | | - Kevin Kalinsky
- Department of Radiation Oncology, Winship Cancer Institute of Emory University, Atlanta, Georgia
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Pu H, Luo Y, Zhang L, Li X, Li F, Chen J, Qian S, Tang Y, Zhao X, Hou L, Gao Y. Development and validation of nomograms for predicting survival outcomes in patients with T1-2N1 breast cancer to identify those who could not benefit from postmastectomy radiotherapy. Front Oncol 2023; 13:1112687. [PMID: 37056328 PMCID: PMC10086367 DOI: 10.3389/fonc.2023.1112687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 03/15/2023] [Indexed: 03/30/2023] Open
Abstract
PurposeIn this study, we aimed to develop and validate nomograms for predicting the survival outcomes in patients with T1-2N1 breast cancer to identify the patients who could not benefit from postmastectomy radiotherapy (PMRT).MethodsData from 10191 patients with T1-2N1 breast cancer were extracted from the Surveillance, Epidemiology, and End Results (SEER) database. Of them, 6542 patients who had not received PMRT formed the training set. Concurrently, we retrospectively enrolled 419 patients from the Affiliated Hospital of North Sichuan Medical College (NSMC), and 286 patients who did not undergo PMRT formed the external validation set. The least absolute shrinkage and selection operator (LASSO) and multivariate Cox regression analyses were used for selecting prognostic factors in the training set. Using the selected factors, two prognostic nomograms were constructed. The nomograms’ performance was assessed using the concordance index (C-index), calibration curves, decision curve analysis (DCA), and risk subgroup classification. The stabilized inverse probability of treatment weights (IPTWs) was used to balance the baseline characteristics of the different risk groups. Finally, the survival outcomes and effectiveness of PMRT after IPTW adjustment were evaluated using adjusted Kaplan–Meier curves and Cox regression models.ResultsThe 8-year overall survival (OS) and breast cancer-specific survival (BCSS) rates for the SEER cohort were 84.3% and 90.1%, with a median follow-up time of 76 months, while those for the NSMC cohort were 84.1% and 86.9%, with a median follow-up time of 73 months. Moreover, significant differences were observed in the survival curves for the different risk subgroups (P < 0.001) in both SEER and NSMC cohorts. The subgroup analysis after adjustment by IPTW revealed that PMRT was significantly associated with improved OS and BCSS in the intermediate- (hazard ratio [HR] = 0.72, 95% confidence interval [CI]: 0.59–0.88, P=0.001; HR = 0.77, 95% CI: 0.62–0.95, P = 0.015) and high- (HR=0.66, 95% CI: 0.52–0.83, P<0.001; HR=0.74, 95% CI: 0.56–0.99, P=0.039) risk groups. However, PMRT had no significant effects on patients in the low-risk groups.ConclusionAccording to the prognostic nomogram, we performed risk subgroup classification and found that patients in the low-risk group did not benefit from PMRT.
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Affiliation(s)
- Hongyu Pu
- Department of Breast and Thyroid Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Yunbo Luo
- Department of Breast and Thyroid Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Linxing Zhang
- Department of Breast and Thyroid Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Xin Li
- Department of Hepatobiliary Surgery I, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Fangwei Li
- Department of Breast and Thyroid Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Jingtai Chen
- Department of Breast and Thyroid Surgery, Chongqing General Hospital, Chongqing, China
| | - Shuangqiang Qian
- Department of Breast and Thyroid Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Yunhui Tang
- Department of Breast and Thyroid Surgery, Guang’an People’s Hospital, Chongqing, China
| | - Xiaobo Zhao
- Department of Breast and Thyroid Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
- *Correspondence: Xiaobo Zhao, ; Lingmi Hou, ; Yanchun Gao,
| | - Lingmi Hou
- Department of Breast and Thyroid Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
- *Correspondence: Xiaobo Zhao, ; Lingmi Hou, ; Yanchun Gao,
| | - Yanchun Gao
- Department of Breast and Thyroid Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
- *Correspondence: Xiaobo Zhao, ; Lingmi Hou, ; Yanchun Gao,
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Genetic Considerations in the Locoregional Management of Breast Cancer: a Review of Current Evidence. CURRENT BREAST CANCER REPORTS 2023. [DOI: 10.1007/s12609-023-00478-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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Sun GY, Wen G, Zhang YJ, Tang Y, Jing H, Fang H, Wang JY, Zhang JH, Zhao XR, Chen SY, Song YW, Jin J, Liu YP, Tang Y, Qi SN, Li N, Chen B, Lu NN, Li YX, Wang SL. Risk factors to identify the indication for regional nodal irradiation in T1-2N1M0 breast cancer: A joint analysis of 4,243 real-world cases from two institutions. Front Oncol 2022; 12:955381. [PMID: 36605447 PMCID: PMC9807655 DOI: 10.3389/fonc.2022.955381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Accepted: 11/23/2022] [Indexed: 12/24/2022] Open
Abstract
Purpose The aim of this study is to evaluate the role of regional nodal irradiation (RNI) in patients with T1-2N1M0 breast cancer and to identify the subgroup that could benefit from RNI. Methods and materials A total of 4,243 women with pT1-2N1M0 breast cancer treated at two institutions in China were retrospectively reviewed. Survival rates were calculated by the Kaplan-Meier method and compared by the log-rank test. The association of risk factors with survival outcomes was evaluated using multivariable proportional hazards regression. Results A total of 932 patients (22.0%) received RNI. At a median follow-up of 5.9 years, the 5-year locoregional recurrence (LRR), distant metastasis (DM), disease-free survival (DFS), and overall survival (OS) rates were 4.0% and 7.2% (P = 0.001), 13.2% and 10.6% (P = 0.465), 85.0% and 84.7% (P = 0.131), and 93.9% and 92.8% (P = 0.004) in the RNI and non-RNI groups, respectively. Multivariate analysis revealed that RNI was an independent prognostic factor for lower LRR (P = 0.001) and longer DFS (P = 0.013). Patients were stratified into low-, intermediate-, and high-risk groups based on the eight non-therapeutic risk factors. RNI significantly decreased the 5-year LRR (2.2% vs. 7.0%, P = 0.001) and improved the 5-year DFS (88.8% vs. 84.9%, P = 0.015) and OS (95.8% vs. 93.9%, P = 0.010) in the intermediate-risk group. However, neither the low-risk group nor the high-risk group had survival benefit from RNI. Conclusion T1-2N1M0 breast cancer is a heterogeneous disease. We found that RNI only improved survival in the intermediate-risk group. It might be omitted in low-risk patients, and the role of RNI in high-risk patients needs further study.
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Affiliation(s)
- Guang-Yi Sun
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ge Wen
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, Guangdong, China,Department of Radiation Oncology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yu-Jing Zhang
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, Guangdong, China
| | - Yu Tang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hao Jing
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hui Fang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jian-Yang Wang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jiang-Hu Zhang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xu-Ran Zhao
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Si-Ye Chen
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yong-Wen Song
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jing Jin
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yue-Ping Liu
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yuan Tang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shu-Nan Qi
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ning Li
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Bo Chen
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ning-Ning Lu
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ye-Xiong Li
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China,*Correspondence: Ye-Xiong Li, ; Shu-Lian Wang,
| | - Shu-Lian Wang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China,*Correspondence: Ye-Xiong Li, ; Shu-Lian Wang,
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9
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Uras C, Cabioglu N, Tokat F, Er O, Kara H, Korkmaz T, Bese N, Ince U. Favorable locoregional control in clinically node-negative hormone-receptor positive breast cancer with low 21-gene recurrence scores: a single-institution study with 10-year follow-up. BMC Cancer 2022; 22:1217. [PMID: 36434599 PMCID: PMC9700873 DOI: 10.1186/s12885-022-10308-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 11/11/2022] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Recent studies have shown a lower likelihood of locoregional recurrences in patients with a low 21-gene recurrence score (RS). In this single-institution study, we investigated whether there are any associations between different cutoff values of 21-gene RS, histopathological factors, and outcome in patients with long-term follow-up. METHODS The study included 61 patients who had early-stage (I-II) clinically node-negative hormone receptor-positive and HER2-negative breast cancer and were tested with the 21-gene RS assay between February 2010 and February 2013. Demographic, clinicopathological, treatment, and outcome characteristics were analyzed. RESULTS The median age was 48 years (range, 29-72 years). Patients with high histologic grade (HG), Ki-67 ≥ 25%, or Ki-67 ≥ 30% were more likely to have intermediate/high RS (≥ 18). Based on the 21-gene RS assay, only 19 patients (31%) received adjuvant chemotherapy. At a median follow-up of 112 months, 3 patients developed locoregional recurrences (4.9%), which were treated with endocrine therapy alone. Among patients treated with endocrine treatment alone (n = 42), the following clinicopathological characteristics were not found to be significantly associated with 10-year locoregional recurrence free survival (LRRFS): age < 40 years, age < 50 years, high histological or nuclear grade, high Ki-67-scores (≥ 15%, ≥ 20%, ≥ 25%, ≥ 30%), presence of lymphovascular invasion, luminal-A type, multifocality, lymph node positivity, tumor size more than 2 cm, RS ≥ 18, and RS > 11. However, patients with RS ≥ 16 had significantly poorer 10-year LRRFS compared to those with RS < 16 (75% vs. 100%, respectively; p = 0.039). CONCLUSIONS The results suggest that patients with clinically node-negative disease and RS ≥ 16 are more likely to benefit from adjuvant chemotherapies. However, those with RS < 16 have an excellent outcome and local control in long-term follow-up with endocrine treatment alone.
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Affiliation(s)
- Cihan Uras
- grid.411117.30000 0004 0369 7552Departments of Surgery, Acibadem Mehmet Ali Aydinlar University, School of Medicine, Istanbul, Turkey
| | - Neslihan Cabioglu
- grid.411117.30000 0004 0369 7552Departments of Surgery, Acibadem Mehmet Ali Aydinlar University, School of Medicine, Istanbul, Turkey ,grid.9601.e0000 0001 2166 6619Department of Surgery, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
| | - Fatma Tokat
- grid.411117.30000 0004 0369 7552Department of Pathology, Acibadem Mehmet Ali Aydinlar University, School of Medicine, Istanbul, Turkey
| | - Ozlem Er
- grid.411117.30000 0004 0369 7552Department of Medical Oncology, Acibadem Mehmet Ali Aydinlar University, School of Medicine, Istanbul, Turkey
| | - Halil Kara
- grid.411117.30000 0004 0369 7552Departments of Surgery, Acibadem Mehmet Ali Aydinlar University, School of Medicine, Istanbul, Turkey
| | - Taner Korkmaz
- grid.411117.30000 0004 0369 7552Department of Medical Oncology, Acibadem Mehmet Ali Aydinlar University, School of Medicine, Istanbul, Turkey
| | - Nuran Bese
- grid.411117.30000 0004 0369 7552Department of Radiation Oncology, Acibadem Mehmet Ali Aydinlar University, School of Medicine, Istanbul, Turkey
| | - Umit Ince
- grid.411117.30000 0004 0369 7552Department of Pathology, Acibadem Mehmet Ali Aydinlar University, School of Medicine, Istanbul, Turkey
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10
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Van der Vorst A, Kindts I, Laenen A, Neven P, Janssen H, Weltens C. Validation of a prognostic scoring system for postmastectomy locoregional recurrence in breast cancer. Breast 2022; 64:29-34. [PMID: 35468477 PMCID: PMC9059150 DOI: 10.1016/j.breast.2022.04.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 03/26/2022] [Accepted: 04/13/2022] [Indexed: 11/20/2022] Open
Abstract
Background To date, it remains unclear which patients with breast cancer (BC) benefit from post-mastectomy radiotherapy (PMRT). Cheng et al. developed and validated a scoring system based on 4 prognostic factors for locoregional recurrence (LRR) to identify patients in need for PMRT. These factors include age, estrogen receptor status, lymphovascular status and number of affected axillary lymph nodes. Purpose To validate the scoring system for LRR in BC developed by Cheng et al. by using an independent BC database. Methods and materials We retrospectively identified 1989 BC cases, treated with mastectomy (ME) with or without PMRT at the University Hospitals Leuven between 2000 and 2007. The primary endpoint was 5-year locoregional control rate with and without PMRT, according to the LRR score. Results Median follow-up time was 11.4 years. After excluding patients with missing variables 1103 patients were classified using the LRR scoring system: 688 (62.38%) patients were at low risk of recurrence (LRR score 0–1), 335 (30.37%) patients were at intermediate risk of recurrence (LRR score 2–3) and 80 (7.25%) patients were at high risk of recurrence (LRR score ≥4). 5-year locoregional control rates with and without PMRT were 99.20% versus 99.21% (p = 0.43) in the low-risk group; 98.24% versus 85.74% (p < 0.0001) in the intermediate-risk group and 96.87% versus 85.71% (p = 0.10) in the high-risk group respectively. Conclusion Our validation of the LRR scoring system suggests it can be used to point out patients that would benefit from PMRT. We recommend further validation of this scoring system by other independent institutions before application in clinical practice. Post-mastectomy radiotherapy. Scoring system by Cheng et al. Based on 4 factors. Age, estrogen receptor, lymphovascular status, affected axillary lymph nodes. Intermediate and high-risk patients could benefit from post-mastectomy radiotherapy.
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Affiliation(s)
- Aline Van der Vorst
- UZ Leuven, Department of Radiation Oncology, Herestraat 49, 3000, Leuven, Belgium.
| | - Isabelle Kindts
- AZ Groeninge, Department of Radiation Oncology, President Kennedylaan 4, 8500, Kortrijk, Belgium.
| | - Annouschka Laenen
- UZ Leuven, Department of Biostatistics and Statistical Bioinformatics, Herestraat 49, 3000, Leuven, Belgium.
| | - Patrick Neven
- UZ Leuven, Department of Gynaecology, Herestraat 49, 3000, Leuven, Belgium.
| | - Hilde Janssen
- UZ Leuven, Department of Radiation Oncology, Herestraat 49, 3000, Leuven, Belgium.
| | - Caroline Weltens
- UZ Leuven, Department of Radiation Oncology, Herestraat 49, 3000, Leuven, Belgium.
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11
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Green MD, Brenneman R, Powell SN, Bergom C. Harnessing the DNA Repair Pathway in Breast Cancer: Germline Mutations/Polymorphisms in Breast Radiation. Semin Radiat Oncol 2022; 32:298-302. [PMID: 35688528 DOI: 10.1016/j.semradonc.2022.01.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Molecular profiling facilitates opportunities for personalization of breast cancer management. Increasing availability of germline and somatic sequencing provides insight into predictors of treatment efficacy and treatment tolerance of patients with breast cancer. The presence of pathologic mutations can guide patient selection for breast conserving surgery vs mastectomy. However, our understanding of the interplay between genetic variants and radiotherapy responses and side effects remains incomplete. Here we review the available data on germline mutations and polymorphisms in breast cancer. We also outline their association with treatment tolerance, locoregional outcomes, and ongoing efforts to transform these insights into more effective treatment strategies in combination with radiotherapy.
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Affiliation(s)
- Michael D Green
- Department of Radiation Oncology, University of Michigan School of Medicine, Ann Arbor, MI; Rogel Cancer Center, University of Michigan, Ann Arbor, MI; Department of Microbiology and Immunology, University of Michigan School of Medicine, Ann Arbor, MI; Graduate Program in Immunology, University of Michigan School of Medicine, Ann Arbor, MI; Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, MI
| | - Randall Brenneman
- Department of Radiation Oncology, Washington University in St. Louis, St. Louis, MO
| | - Simon N Powell
- Department of Radiation Oncology and Molecular Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Carmen Bergom
- Department of Radiation Oncology, Washington University in St. Louis, St. Louis, MO.
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12
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Chevli N, Haque W, Tran KT, Farach AM, Schwartz MR, Hatch SS, Butler EB, Teh BS. 21-Gene recurrence score predictive for prognostic benefit of radiotherapy in patients age ≥ 70 with T1N0 ER/PR + HER2- breast cancer treated with breast conserving surgery and endocrine therapy. Radiother Oncol 2022; 174:37-43. [PMID: 35772577 DOI: 10.1016/j.radonc.2022.06.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 06/10/2022] [Accepted: 06/17/2022] [Indexed: 11/26/2022]
Abstract
PURPOSE Based on the results of the Cancer and Leukemia Group B (CALGB) 9343 trial, patients age ≥70 with T1N0 hormone receptor positive (ER/PR+), human epidermal growth factor receptor-2 negative (HER2-) breast cancer who are treated with breast conserving surgery (BCS) and endocrine therapy (ET) are candidates for omission of radiotherapy (RT). Because the CALGB 9343 trial did not stratify based on recurrence score (RS) test (Oncotype Dx), we conducted the present retrospective study to determine whether RS is predictive of who may benefit from RT following BCS in this cohort. MATERIALS AND METHODS The National Cancer Database (NCDB) was queried (2004-2017) for patients age ≥ 70 with pT1N0 ER+/PR + HER2- breast cancer treated with BCS and ET. Patients were stratified based on their RS (low risk [LR] = 1-10, intermediate risk [IR] = 11-25, high risk [HR] = 26-99). Propensity score matching (PSM) created 1:1 matched cohorts of patients who received radiotherapy and those who did not. Kaplan-Meier analysis evaluated overall survival (OS). Univariable (UVA) and multivariable (MVA) Cox proportional hazard analyses identified clinical and treatment factors prognostic for OS. RESULTS A total of 11,891 patients met the selection criteria: 3364 in the LR cohort, 7305 in the IR cohort, and 1222 in the HR cohort. A total of 79 % received RT: 77 % in the LR cohort, 79 % in the IR cohort, and 85 % in the HR cohort. Because PSM could not be efficiently performed in the HR cohort alone, the IR and HR cohort were merged (IRHR) for matching. After PSM, the 5-year OS in the LR cohort was 91 % for those who received RT and 89 % for those who did not (p = 0.605). In the IRHR cohort, the 5-year OS was 91 % for those who received RT and 87 % for those who did not (p = 0.003). On MVA in the LR cohort, RT (p = 0.727) was not predictive of improved OS. On MVA in the IRHR cohort, RT (p = 0.010) was a positive prognostic factor for OS. CONCLUSION In this older cohort of patients, there is an OS benefit with the use of RT in patients with IRHR RS but not in patients with LR RS. Pending prospective evaluation, assessment of RS in this older subset of patients is recommended with consideration of RT when RS is ≥11.
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Affiliation(s)
- Neil Chevli
- Department of Radiation Oncology, The University of Texas Medical Branch, Galveston, United States
| | - Waqar Haque
- Department of Radiation Oncology, Houston Methodist Hospital, United States
| | - Kevin T Tran
- Department of Radiation Oncology, The University of Texas Medical Branch, Galveston, United States
| | - Andrew M Farach
- Department of Radiation Oncology, Houston Methodist Hospital, United States
| | - Mary R Schwartz
- Department of Pathology and Genomic Medicine, Houston Methodist Hospital, United States
| | - Sandra S Hatch
- Department of Radiation Oncology, MD Anderson Cancer Center, United States
| | - E Brian Butler
- Department of Radiation Oncology, Houston Methodist Hospital, United States
| | - Bin S Teh
- Department of Radiation Oncology, Houston Methodist Hospital, United States.
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13
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Xu FF, Cao L, Xu C, Cai G, Wang SB, Qi WX, Chen JY. Practical Model to Optimize the Strategy of Adjuvant Postmastectomy Radiotherapy in T1-2N1 Breast Cancer With Modern Systemic Therapy. Front Oncol 2022; 12:789198. [PMID: 35280719 PMCID: PMC8908314 DOI: 10.3389/fonc.2022.789198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 01/28/2022] [Indexed: 12/24/2022] Open
Abstract
Purpose The effect of adjuvant irradiation after mastectomy in early-stage breast cancer patients remains controversial. The present study aims to explore the clinical benefit obtained from adjuvant radiotherapy among post-mastectomy pT1-2N1 breast cancer patients who received adjuvant modern systemic therapy. Methods Medical records of consecutive patients with pT1-2N1 breast cancer who received mastectomy in our institution between January 2009 and December 2016 were retrospectively reviewed. High-risk features consist of patient age, number of positive lymph nodes, T stage, and Ki67 index, which were developed previously at our institution using early-stage breast cancer patients after mastectomy without adjuvant radiotherapy. Differences of survival and local recurrence were compared between no-postmastectomy radiotherapy (PMRT) and PMRT group according to number of risk factors. The time-to-event curves were calculated by the Kaplan–Meier methods and compared by the log-rank test. Propensity score matching (PSM) was performed to reduce the imbalances in patient characteristics. Results A total of 548 patients were enrolled (no-PMRT: 259 and PMRT: 289). After a median follow-up of 69 months, the 5-year rate of DFS, BCSS, and LRR in the overall cohort was 90.2%, 97.4%, and 3.6%, respectively. PMRT did not significantly improve DFS, BCSS, and LRRFS in the whole cohort. Patients were divided into low-risk (with no or one risk factor) and high-risk (with two or more risk factors) groups. According to the univariable and multivariable analysis, high-risk group (HR = 1.81, 95% CI 1.11–2.98, p = 0.02) was demonstrated as an independent risk factor for DFS. For the high-risk group, PMRT significantly improved DFS from 81.4% to 91.9% and BCSS from 95.5% to 98.6% and decreased the 5-year rate of LRR from 5.6% to 1.4%, respectively (p < 0.01, p = 0.05, and p = 0.06). However, no survival benefit from PMRT was observed in the low-risk group in terms of DFS, BCSS, and LRR (p = 0.45, p = 0.51, and p = 0.99, respectively). In multivariate analysis, PMRT remained an independent prognostic factor for DFS (HR = 0.50, 95% CI 0.24–1.00, p = 0.05) in the high-risk group. After PSM analysis, the survival benefit of PMRT was sustained in high-risk patients. Conclusion PMRT significantly improved DFS in high-risk pT1-2N1 breast cancer patients, but not in low-risk patients. Independent validation of our scoring system is recommended.
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Affiliation(s)
- Fei-Fei Xu
- Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Lu Cao
- Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Cheng Xu
- Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Gang Cai
- Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Shu-Bei Wang
- Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Wei-Xiang Qi
- Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Jia-Yi Chen
- Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
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14
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Luo C, Zhong X, Luo T, Zheng H. Postmastectomy radiation therapy and survival outcome in older patients with T1-2N1 breast cancer. Breast 2021; 59:308-313. [PMID: 34388696 PMCID: PMC8361178 DOI: 10.1016/j.breast.2021.08.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 07/21/2021] [Accepted: 08/02/2021] [Indexed: 02/05/2023] Open
Abstract
Background The prognostic impact of postmastectomy radiation therapy (PMRT) on contemporary older patients with T1-2N1 breast cancer is unclear. We aimed to investigate the effect of PMRT in this setting. Methods Leveraging the Surveillance, Epidemiology, and End Results (SEER) program data from 2004 to 2015, 7052 patients aged 70 years or older with T1-2N1 breast cancer were identified for this propensity-matched analysis. Fine and Gray competing risks regression was conducted to explore the correlation between PMRT and breast cancer-specific survival, in subgroups defined by tumor size and positive lymph nodes. Results The median follow-up was 60.1 months (interquartile range, 28.0 to 87.0). Among propensity-matched patients, multivariate analysis identified an association between PMRT and decreased breast cancer mortality (BCM; HR 0.637; 95 % CI 0.436–0.931; P = 0.020) in patient subset with three positive nodes and tumors 2–5 cm in size, and this benefit was limited to patients with three positive nodes and tumors 2–5 cm in size who did not receive chemotherapy. In patient subsets who received chemotherapy, no association between PMRT and BCM was found. Conclusion PMRT was not associated with BCM in older patients with T1-2N1 breast cancer who received chemotherapy. The benefit of PMRT was limited to those with three positive nodes and tumors 2–5 cm in size who did not receive chemotherapy. 46.0 % older patients with T1-2N1 breast cancer received postmastectomy radiation therapy (PMRT). 28.8 % older patients with T1-2N1 breast cancer received chemotherapy. PMRT was beneficial for those with three positive nodes and tumors 2–5 cm in size who did not receive chemotherapy. No correlation between PMRT and BCM was found in patients who received chemotherapy.
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Affiliation(s)
- Chuanxu Luo
- Laboratory of Molecular Diagnosis of Cancer & Breast Medical Oncology, Clinical Research Center for Breast, West China Hospital, Sichuan University, Chengdu, China
| | - Xiaorong Zhong
- Laboratory of Molecular Diagnosis of Cancer & Breast Medical Oncology, Clinical Research Center for Breast, West China Hospital, Sichuan University, Chengdu, China
| | - Ting Luo
- Department of Head, Neck and Mammary Gland Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, China.
| | - Hong Zheng
- Laboratory of Molecular Diagnosis of Cancer & Breast Medical Oncology, Clinical Research Center for Breast, West China Hospital, Sichuan University, Chengdu, China
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15
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Chagpar AB. Debate: Postmastectomy Radiation Therapy in T1/2N1 Disease. Ann Surg Oncol 2021; 28:5456-5460. [PMID: 34324110 DOI: 10.1245/s10434-021-10500-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 07/08/2021] [Indexed: 12/28/2022]
Abstract
Although postmastectomy radiation therapy is known to reduce local recurrence in patients with T1/2N1 breast cancer, some have postulated that not all patients require this treatment. In this era of genomic analyses and personalized therapy, clinicians have debated whether the toxicity of post-mastectomy radiation therapy (PMRT) can be avoided for some subsets of patients. However, the data in this regard remain controversial, particularly as surgeons de-escalate the surgical management of the axilla. Several ongoing clinical trials may provide a glimpse into optimal management in this scenario. However, the "right" answer to this debate currently remains unclear.
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Affiliation(s)
- Anees B Chagpar
- Department of Surgery, Yale University School of Medicine, New Haven, CT, USA.
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16
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Zhang L, Zhou M, Liu Y, Du F, Tang J, Wang N, Song C, Geng C, Duan H. Is it beneficial for patients with pT1-2N1M0 breast cancer to receive postmastectomy radiotherapy? An analysis based on RecurIndex assay. Int J Cancer 2021; 149:1801-1808. [PMID: 34224580 DOI: 10.1002/ijc.33730] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 06/22/2021] [Accepted: 06/25/2021] [Indexed: 01/19/2023]
Abstract
The benefit of postmastectomy radiotherapy (PMRT) for pT1-2N1M0 breast cancer patients currently remains controversial. This study was conducted to investigate whether pT1-2N1M0 breast cancer patients could benefit from PMRT based on RecurIndex assay. The clinical data of 213 pT1-2N1M0 breast cancer patients were retrospectively analyzed. Through RecurIndex assay, 81 cases were assessed as the low risk, and 132 as the high risk. Compared to low-risk patients, high-risk patients especially those not receiving PMRT had a significantly increased risk of recurrence and metastasis, and worse 7-year local-regional recurrence-free interval (LRFI), distance recurrence-free interval (DRFI) and recurrence-free survival (RFS) rates. PMRT-based subgroup analysis indicated no significant differences between the low-risk patients with and without PMRT in 7-year LRFI, DRFI, RFS and overall survival (OS) rates, but apparent differences were all shown between the high-risk patients with and without PMRT in 7-year LRFI, DRFI, RFS and OS rates. Overall, for pT1-2N1M0 breast cancer patients at low risk of recurrence and metastasis stratified by RecurIndex assay, there may be a phenomenon of no PMRT benefits, while for those at high risk, use of PMRT may produce survival benefits.
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Affiliation(s)
- Lina Zhang
- Breast Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Mengli Zhou
- State Key Laboratory of Translational Medicine and Innovative Drug Development, Jiangsu Simcere Diagnostics Co., Ltd., Nanjing, China.,Department of Medicine, Nanjing Simcere Medical Laboratory Science Co., Ltd., Nanjing, China
| | - Yueping Liu
- Department of Pathology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Furong Du
- State Key Laboratory of Translational Medicine and Innovative Drug Development, Jiangsu Simcere Diagnostics Co., Ltd., Nanjing, China.,Department of Medicine, Nanjing Simcere Medical Laboratory Science Co., Ltd., Nanjing, China
| | - Jiyu Tang
- State Key Laboratory of Translational Medicine and Innovative Drug Development, Jiangsu Simcere Diagnostics Co., Ltd., Nanjing, China.,Department of Medicine, Nanjing Simcere Medical Laboratory Science Co., Ltd., Nanjing, China
| | - Ning Wang
- State Key Laboratory of Translational Medicine and Innovative Drug Development, Jiangsu Simcere Diagnostics Co., Ltd., Nanjing, China.,Department of Medicine, Nanjing Simcere Medical Laboratory Science Co., Ltd., Nanjing, China
| | - Chao Song
- State Key Laboratory of Translational Medicine and Innovative Drug Development, Jiangsu Simcere Diagnostics Co., Ltd., Nanjing, China.,Department of Medicine, Nanjing Simcere Medical Laboratory Science Co., Ltd., Nanjing, China.,Henan Key Laboratory of Precision Medicine, Zhengzhou, China
| | - Cuizhi Geng
- Breast Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Huijun Duan
- Department of Pathology, Hebei Medical University, Shijiazhuang, China
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17
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Tang Y, Zhang YJ, Zhang N, Shi M, Wen G, Cheng J, Wang HM, Liu M, Wang XH, Guo QS, Wu HF, Ma CY, Jin J, Liu YP, Song YW, Fang H, Ren H, Wang SL, Li YX. Nomogram predicting survival as a selection criterion for postmastectomy radiotherapy in patients with T1 to T2 breast cancer with 1 to 3 positive lymph nodes. Cancer 2021; 126 Suppl 16:3857-3866. [PMID: 32710662 DOI: 10.1002/cncr.32963] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Revised: 04/21/2020] [Accepted: 04/22/2020] [Indexed: 11/09/2022]
Abstract
BACKGROUND The role of postmastectomy radiotherapy (PMRT) in women with pT1-T2N1 breast cancer is controversial. The authors developed a nomogram that was predictive for overall survival (OS) and identified patients who derived no benefit from PMRT. METHODS The authors retrospectively evaluated 4869 patients with pT1-T2N1 breast cancer who were treated with mastectomy between 2000 and 2014 in 11 Chinese hospitals. Rates of locoregional recurrence and distant metastasis were calculated using competing risk analysis, and disease-free survival and OS rates were calculated using the Kaplan-Meier method. Based on the risk factors identified from Cox regression analysis in 3298 unirradiated patients, a nomogram predicting OS was developed. The benefit of PMRT was evaluated in different risk groups stratified by the nomogram model. RESULTS After a median follow-up of 65.9 months, the 5-year OS, disease-free survival, locoregional recurrence, and distant metastasis rates were 93.3%, 84.3%, 5.2%, and 8.3%, respectively. A total of 1571 patients (32.3%) underwent PMRT. On multivariable analyses, PMRT was found to increase OS significantly (hazard ratio, 0.61; P = .002). An OS prediction nomogram evaluated the effect of age; tumor location; tumor size; positive lymph node ratio; estrogen receptor, progesterone receptor, and human epidermal growth factor receptor 2 status; and treatment with trastuzumab. Based on nomogram scores, the entire patient cohort was classified into 3 risk groups. PMRT significantly improved the OS of patients in the intermediate-risk (P < .001) and high-risk groups (P = .004), but not in the low-risk group (P = .728). CONCLUSIONS The authors developed a nomogram that is predictive of OS among women with pT1-T2N1 breast cancer after mastectomy. This nomogram may help to select a subgroup of patients with a good prognosis who will not benefit from PMRT.
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Affiliation(s)
- Yu Tang
- State Key Laboratory of Molecular Oncology and Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yu-Jing Zhang
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Na Zhang
- Department of Radiation Oncology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, China
| | - Mei Shi
- Department of Radiation Oncology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Ge Wen
- Department of Radiation Oncology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Jing Cheng
- Department of Breast Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hong-Mei Wang
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Min Liu
- Department of Radiation Oncology, First Hospital of Jilin University, Changchun, China
| | - Xiao-Hu Wang
- Department of Radiation Oncology, Gansu Cancer Hospital, Lanzhou, China
| | - Qi-Shuai Guo
- Department of Radiation Oncology, Chongqing University Cancer Hospital, Chongqing Cancer Institute, Chongqing Cancer Hospital, Chonqing, China
| | - Hong-Fen Wu
- Department of Radiation Oncology, Jilin Cancer Hospital, Changchun, China
| | - Chang-Ying Ma
- Department of Radiation Oncology, First Hospital of Qiqihaer, Qiqihaer, China
| | - Jing Jin
- State Key Laboratory of Molecular Oncology and Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yue-Ping Liu
- State Key Laboratory of Molecular Oncology and Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yong-Wen Song
- State Key Laboratory of Molecular Oncology and Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hui Fang
- State Key Laboratory of Molecular Oncology and Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hua Ren
- State Key Laboratory of Molecular Oncology and Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shu-Lian Wang
- State Key Laboratory of Molecular Oncology and Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ye-Xiong Li
- State Key Laboratory of Molecular Oncology and Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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18
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Aristei C, Perrucci E, Alì E, Marazzi F, Masiello V, Saldi S, Ingrosso G. Personalization in Modern Radiation Oncology: Methods, Results and Pitfalls. Personalized Interventions and Breast Cancer. Front Oncol 2021; 11:616042. [PMID: 33816246 PMCID: PMC8012886 DOI: 10.3389/fonc.2021.616042] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Accepted: 02/02/2021] [Indexed: 12/31/2022] Open
Abstract
Breast cancer, the most frequent malignancy in women worldwide, is a heterogeneous group of diseases, characterized by distinct molecular aberrations. In precision medicine, radiation oncology for breast cancer aims at tailoring treatment according to tumor biology and each patient’s clinical features and genetics. Although systemic therapies are personalized according to molecular sub-type [i.e. endocrine therapy for receptor-positive disease and anti-human epidermal growth factor receptor 2 (HER2) therapy for HER2-positive disease] and multi-gene assays, personalized radiation therapy has yet to be adopted in the clinical setting. Currently, attempts are being made to identify prognostic and/or predictive factors, biomarkers, signatures that could lead to personalized treatment in order to select appropriate patients who might, or might not, benefit from radiation therapy or whose radiation therapy might be escalated or de-escalated in dosages and volumes. This overview focuses on what has been achieved to date in personalized post-operative radiation therapy and individual patient radiosensitivity assessments by means of tumor sub-types and genetics.
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Affiliation(s)
- Cynthia Aristei
- Radiation Oncology Section, University of Perugia and Perugia General Hospital, Perugia, Italy
| | | | - Emanuele Alì
- Radiation Oncology Section, University of Perugia, Perugia, Italy
| | - Fabio Marazzi
- Radiation Oncology Department, Fondazione Policlinico A. Gemelli IRCCS, Rome, Italy
| | - Valeria Masiello
- Radiation Oncology Department, Fondazione Policlinico A. Gemelli IRCCS, Rome, Italy
| | - Simonetta Saldi
- Radiation Oncology Section, Perugia General Hospital, Perugia, Italy
| | - Gianluca Ingrosso
- Radiation Oncology Section, University of Perugia and Perugia General Hospital, Perugia, Italy
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19
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Kayali M, Jaoude JA, Ramia P, Assi H, Geara F, Poortmans P, Zeidan YH. Post-lumpectomy radiation therapy boost in breast cancer patients: evidence revisited. Ecancermedicalscience 2021; 15:1194. [PMID: 33889203 PMCID: PMC8043677 DOI: 10.3332/ecancer.2021.1194] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Indexed: 12/24/2022] Open
Abstract
Purpose Radiation therapy is an integral part in the management of breast cancer after breast conservative surgery. In selected patients at high risk for local recurrence (LR), a boost radiation dose is commonly applied to the tumour bed. Methods We performed a review of the English literature using PubMed, Medline and Google Scholar for published manuscripts addressing the effect of boost radiation in breast cancer patients, focusing mainly on LR and overall survival (OS). Results A total of seven studies were included in our review. Most studies (6/7, 85.7%) showed a significant improvement in local control independent of age (hazard ratios ranging between 0.34 and 0.73), with the largest absolute benefit in younger patients. None of the studies, however, was able to demonstrate an improvement in OS. Conclusions With lack of sufficient studies addressing the role of boost radiation, individualised treatment decisions are recommended, taking into account the risk factors for LR, including tumour biology. Real-life data are sorely needed to better assess the role of tumour bed boost in the contemporary era.
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Affiliation(s)
- Majd Kayali
- Department of Radiation Oncology, American University of Beirut Medical Center, Beirut, Lebanon.,Co-first authors with equal contribution
| | - Joseph Abi Jaoude
- Faculty of Medicine, American University of Beirut, Beirut, Lebanon.,Co-first authors with equal contribution
| | - Paul Ramia
- Department of Radiation Oncology, American University of Beirut Medical Center, Beirut, Lebanon
| | - Hazem Assi
- Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | - Fady Geara
- Department of Radiation Oncology, American University of Beirut Medical Center, Beirut, Lebanon
| | - Philip Poortmans
- Department of Radiation Oncology, Institut Curie, Paris Sciences & Lettres, PSL University, Paris, France
| | - Youssef H Zeidan
- Department of Radiation Oncology, American University of Beirut Medical Center, Beirut, Lebanon
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20
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Ma JC, Zhong XR, Luo T, Liu L. ASO Author Reflections: Postmastectomy Radiotherapy for Breast Cancer Patients After Neoadjuvant Chemotherapy, by Molecular Subtype. Ann Surg Oncol 2021; 28:5096-5097. [PMID: 33604825 DOI: 10.1245/s10434-020-09555-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 12/19/2020] [Indexed: 02/05/2023]
Affiliation(s)
- Jia-Chun Ma
- Department of Head and Neck Oncology, Cancer Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Xiao-Rong Zhong
- Department of Head, Neck and Mammary Gland Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Ting Luo
- Department of Head, Neck and Mammary Gland Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Lei Liu
- Department of Head and Neck Oncology, Cancer Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China.
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21
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Zhao JM, An Q, Sun CN, Li YB, Qin ZL, Guo H, Zeng X, Zhang YT, Wei LL, Han N, Sun SC, Zhang N. Prognostic factors for breast cancer patients with T1-2 tumors and 1-3 positive lymph nodes and the role of postmastectomy radiotherapy in these patients. Breast Cancer 2020; 28:298-306. [PMID: 32940902 DOI: 10.1007/s12282-020-01158-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Accepted: 09/11/2020] [Indexed: 11/24/2022]
Abstract
PURPOSE The purpose of this study was to identify independent prognostic factors for breast cancer patients with T1-2 tumors and 1-3 positive lymph nodes, and discuss the role of postmastectomy radiotherapy(PMRT) in these patients. METHODS Between January 2005 and December 2015, the data on 840 eligible patients with breast cancer were retrospectively reviewed. Of these patients, 368 women received PMRT and 472 did not. The endpoints were locoregional recurrence (LRR) and distant metastasis (DM). RESULTS With a median follow-up of 62.0 months, multivariate analysis identified the following independent risk factors for increased LRR: tumor size ≥ 4 cm (HR: 2.994, 95% CI: 1.190-7.535, P = 0.020), ER- and PR-negative tumor (HR: 2.540, 95% CI: 1.165-5.537, P = 0.019), preoperative high neutrophil-to-lymphocyte ratio (NLR) (HR: 4.716, 95% CI: 1.776-12.528, P = 0.002)and low neutrophil-to-monocyte ratio (NMR) (HR: 0.231, 95% CI: 0.084-0.633, P = 0.004). And independent risk factors for increased DM: ER- and PR-negative tumor (HR: 2.540, 95% CI: 1.880-5.625, P = 0.000), high NLR (HR: 2.693, 95% CI: 1.426-5.084, P = 0.002) and low NMR (HR: 0.460, 95% CI: 0.257-0.824, P = 0.009). The high-risk patients (≥ 2 risk factors) had worse LRRFS and DFS than low-risk patients (0-1 risk factor) (all, P < 0.05). In the subgroup analysis, both low- and high-risk patients received PMRT had better LRRFS and DFS than those who without PMRT (all, P < 0.05), and the high-risk patients received PMRT had similar 5-year rates of LRRFS and DFS than low-risk patients who without PMRT (94.5 vs. 94.3%, P = 0.402; 83.4 vs.87.4%, P = 0.877, respectively). CONCLUSIONS Tumor size, ER/PR status, preoperative NLR and NMR were independent predictors of risk of recurrence. PMRT could improve locoregional control even in low-risk subgroup of breast cancer patients with T1-2 tumors and 1-3 positive lymph nodes significantly.
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Affiliation(s)
- Jia-Ming Zhao
- Department of Radiation Oncology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, No. 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, China
| | - Qi An
- Department of Radiation Oncology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, No. 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, China
| | - Chao-Nan Sun
- Department of Radiation Oncology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, No. 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, China
| | - Yu-Bing Li
- Department of Radiation Oncology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, No. 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, China
| | - Zi-Lan Qin
- Department of Radiation Oncology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, No. 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, China
| | - Hong Guo
- Department of Radiation Oncology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, No. 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, China
| | - Xue Zeng
- Department of Radiation Oncology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, No. 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, China
| | - Yao-Tian Zhang
- Department of Radiation Oncology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, No. 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, China
| | - Lin-Lin Wei
- Department of Radiation Oncology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, No. 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, China
| | - Ning Han
- Department of Radiation Oncology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, No. 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, China
| | - Shi-Chen Sun
- Department of Radiation Oncology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, No. 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, China
| | - Na Zhang
- Department of Radiation Oncology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, No. 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, China.
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22
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Yang DD, Buscariollo DL, Cronin AM, Weng S, Hughes ME, Bleicher RJ, Cohen AL, Javid SH, Edge SB, Moy B, Niland JC, Wolff AC, Hassett MJ, Punglia RS. Association between the 21-gene recurrence score and isolated locoregional recurrence in stage I-II, hormone receptor-positive breast cancer. Radiat Oncol 2020; 15:198. [PMID: 32799886 PMCID: PMC7429461 DOI: 10.1186/s13014-020-01640-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 08/10/2020] [Indexed: 12/26/2022] Open
Abstract
Background Although the 21-gene recurrence score (RS) assay is widely used to predict distant recurrence risk and benefit from adjuvant chemotherapy among women with hormone receptor-positive (HR+) breast cancer, the relationship between the RS and isolated locoregional recurrence (iLRR) remains poorly understood. Therefore, we examined the association between the RS and risk of iLRR for women with stage I-II, HR+ breast cancer. Methods We identified 1758 women captured in the national prospective Breast Cancer-Collaborative Outcomes Research Database who were diagnosed with stage I-II, HR+ breast cancer from 2006 to 2012, treated with mastectomy or breast-conserving surgery, and received RS testing. Women who received neoadjuvant therapy were excluded. The association between the RS and risk of iLRR was examined using competing risks regression. Results Overall, 19% of the cohort (n = 329) had a RS ≥25. At median follow-up of 29 months, only 22 iLRR events were observed. Having a RS ≥25 was not associated with a significantly higher risk of iLRR compared to a RS < 25 (hazard ratio 1.14, 95% confidence interval 0.39–3.36, P = 0.81). When limited to women who received adjuvant endocrine therapy without chemotherapy (n = 1199; 68% of the cohort), having a RS ≥25 (n = 74) was significantly associated with a higher risk of iLRR compared to a RS < 25 (hazard ratio 3.66, 95% confidence interval 1.07–12.5, P = 0.04). In this group, increasing RS was associated with greater risk of iLRR (compared to RS < 18, hazard ratio of 1.66, 3.59, and 7.06, respectively, for RS 18–24, 25–30, and ≥ 31; Ptrend = 0.02). Conclusions The RS was significantly associated with risk of iLRR in patients who did not receive adjuvant chemotherapy. The utility of the RS in identifying patients who have a low risk of iLRR should be further studied.
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Affiliation(s)
- David D Yang
- Harvard Medical School, 25 Shattuck St, Boston, MA, 02115, USA.,Department of Radiation Oncology, Dana-Farber/Brigham and Women's Cancer Center, 75 Francis St, Boston, MA, 02115, USA
| | - Daniela L Buscariollo
- Harvard Medical School, 25 Shattuck St, Boston, MA, 02115, USA.,Department of Radiation Oncology, Dana-Farber/Brigham and Women's Cancer Center, 75 Francis St, Boston, MA, 02115, USA
| | - Angel M Cronin
- Division of Population Science, Dana-Farber Cancer Institute, 450 Brookline Ave, Boston, MA, 02215, USA
| | - Shicheng Weng
- Division of Population Science, Dana-Farber Cancer Institute, 450 Brookline Ave, Boston, MA, 02215, USA
| | - Melissa E Hughes
- Department of Medical Oncology, Dana-Farber/Brigham and Women's Cancer Center, 75 Francis St, Boston, MA, 02115, USA
| | - Richard J Bleicher
- Department of Surgical Oncology, Fox Chase Cancer Center, 333 Cottman Ave, Philadelphia, PA, 19111, USA
| | - Adam L Cohen
- Department of Medicine, Division of Oncology, Huntsman Cancer Institute, 1950 Circle of Hope Dr, Salt Lake City, UT, 84112, USA
| | - Sara H Javid
- Department of Surgery, University of Washington School of Medicine, Box 356410, Seattle, WA, 98105, USA
| | - Stephen B Edge
- Department of Surgical Oncology, Roswell Park Cancer Institute, 665 Elm St, Buffalo, NY, 14203, USA
| | - Beverly Moy
- Harvard Medical School, 25 Shattuck St, Boston, MA, 02115, USA.,Department of Medical Oncology, Massachusetts General Hospital, 55 Fruit St, Boston, MA, 02114, USA
| | - Joyce C Niland
- Department of Diabetes and Cancer Discovery Science, City of Hope Comprehensive Cancer Center, 1500 East Duarte Road, Duarte, CA, 91010, USA
| | - Antonio C Wolff
- Department of Oncology, Johns Hopkins University Sidney Kimmel Comprehensive Cancer Center, 401 N. Broadway, Weinberg, Baltimore, MD, 21231, USA
| | - Michael J Hassett
- Harvard Medical School, 25 Shattuck St, Boston, MA, 02115, USA.,Department of Medical Oncology, Dana-Farber/Brigham and Women's Cancer Center, 75 Francis St, Boston, MA, 02115, USA
| | - Rinaa S Punglia
- Harvard Medical School, 25 Shattuck St, Boston, MA, 02115, USA. .,Department of Radiation Oncology, Dana-Farber/Brigham and Women's Cancer Center, 75 Francis St, Boston, MA, 02115, USA.
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23
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Kim K, Jung J, Shin KH, Kim JH, Chang JH, Kim SS, Kim H, Park W, Kim YB, Chang JS. Impact of Oncotype DX Recurrence Score on the Patterns of Locoregional Recurrence in Breast Cancer (Korean Radiation Oncology Group 19-06). J Breast Cancer 2020; 23:314-319. [PMID: 32595993 PMCID: PMC7311362 DOI: 10.4048/jbc.2020.23.e36] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 05/16/2020] [Indexed: 11/30/2022] Open
Abstract
The current study evaluated the impact of the Oncotype DX recurrence score (RS) on the patterns of locoregional recurrence (LRR) in node-negative, hormone receptor-positive/human epidermal growth factor receptor 2-negative breast cancer. Totally, 339 patients from 4 institutions were enrolled and analyzed retrospectively. All patients underwent breast-conserving surgery followed by whole-breast irradiation; only 2 patients received regional nodal irradiation (RNI). The RS was < 11 in 55 patients, 11–25 in 241, and > 25 in 43. Sixty-two patients received adjuvant chemotherapy. All patients except 4 received hormonal therapy. During a 62-month median follow-up, local recurrence was observed in 1 patient; regional recurrence, 3; and distant metastasis, 7. All LRRs were observed among patients with a RS > 25, resulting in a 5-year LRR rate of 7.3% in this subgroup. Regional recurrences developed in patients did not receive RNI initially. Thus, RNI might be effective for patients with a high RS.
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Affiliation(s)
- Kyubo Kim
- Department of Radiation Oncology, Ewha Womans University College of Medicine, Seoul, Korea
| | - Jinhong Jung
- Department of Radiation Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Kyung Hwan Shin
- Department of Radiation Oncology, Seoul National University College of Medicine, Seoul, Korea
| | - Jin Ho Kim
- Department of Radiation Oncology, Seoul National University College of Medicine, Seoul, Korea
| | - Ji Hyun Chang
- Department of Radiation Oncology, Seoul National University College of Medicine, Seoul, Korea
| | - Su Ssan Kim
- Department of Radiation Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Haeyoung Kim
- Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Won Park
- Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Yong Bae Kim
- Department of Radiation Oncology, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea
| | - Jee Suk Chang
- Department of Radiation Oncology, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea
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24
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Hepel JT, Wazer DE. Update on Partial Breast Irradiation. Clin Breast Cancer 2020; 21:96-102. [PMID: 32448706 DOI: 10.1016/j.clbc.2020.04.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 03/24/2020] [Accepted: 04/06/2020] [Indexed: 11/25/2022]
Abstract
For early-stage breast cancer, partial breast irradiation (PBI) allows for reduction in the irradiated volume of normal tissues by confining the radiation target to the area surrounding the lumpectomy cavity after breast-conserving surgery. This approach has been supported by phase 2 data. However, widespread adoption of PBI has awaited the results of randomized controlled trials. This review discusses the results of randomized controlled trials comparing whole breast irradiation to PBI, including the recently published National Surgical Adjuvant Breast and Bowel Project (NSABP) B39/Radiotherapy Oncology Group (RTOG) 0413, and the Canadian RAPID trials. PBI techniques, dose/fractionation schedules, and patient selection are also reviewed.
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Affiliation(s)
- Jaroslaw T Hepel
- Department of Radiation Oncology, Lifespan Cancer Institute, Alpert Medical School of Brown University, Providence, RI.
| | - David E Wazer
- Department of Radiation Oncology, Lifespan Cancer Institute, Alpert Medical School of Brown University, Providence, RI
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25
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Regional nodal irradiation for early breast cancer; clinical benefit according to risk stratification. Breast 2020; 48 Suppl 1:S65-S68. [PMID: 31839164 DOI: 10.1016/s0960-9776(19)31127-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Three recently published prospective trials on regional nodal irradiation (RNI) in early breast cancer showed a reduction on breast cancer mortality, any first breast recurrence and/or distant recurrence rate. The positive outcomes of the modern trials reflect the development in radiotherapy by being more precise nowadays in radiation dose delivery to the lymph nodes, while reducing the radiation dose to heart and lungs. The possibility of axillary radiotherapy (ART) to replace axillary node dissection (ALND) after positive sentinel node (SLNB) biopsy is explored in a few trials. In the AMAROS trial both ALND and ART provide excellent and comparable LRR in SN+ patients. While the lymphedema was 2 times higher after ALND compared to ART. The ACOSOG Z0011 10 years results did not show a significant difference in locoregional recurrence rate or survival. These equal results were seen despite that in 27.4% of the patients had additional positive nodes removed beyond SLN in the patients who received axillary dissection (ALND). The IBCSG 23-01 phase III trial showed that there is no need for extra treatment of the axilla after micro-metastases in SLNB, however in this trial nearly all patients received breast irradiation including part of the axilla, often combined with adjuvant therapy. The introduction of neo- adjuvant systemic treatment (NACT) may lead to less RNI in early breast cancer, especially as NACT leads to pCR in axillary lymph nodes in about one third of the patient.
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26
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Krug D, Baumann R, Budach W, Duma MN, Dunst J, Feyer P, Fietkau R, Haase W, Harms W, Hehr T, Piroth MD, Sedlmayer F, Souchon R, Wenz F, Sauer R. Commercially Available Gene Expression Assays as Predictive Tools for Adjuvant Radiotherapy? A Critical Review. Breast Care (Basel) 2020; 15:118-126. [PMID: 32398980 DOI: 10.1159/000505656] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Accepted: 12/23/2019] [Indexed: 12/17/2022] Open
Abstract
Background Gene expression assays are increasingly used for decision-making regarding adjuvant chemotherapy in patients with hormone receptor-positive, HER2-negative breast cancer. There are some clinical situations in which there is also a need for better prognostic and predictive markers to better estimate the amount of benefit from adjuvant radiotherapy. The rising availability of gene expression analyses prompts the question whether their results can also be used to guide clinical decisions regarding adjuvant radiation. Summary Multiple studies suggest a correlation between results from gene expression assays and locoregional recurrence rates. Only few publications addressed the predictive value of results from gene expression analysis for the role of adjuvant radiotherapy in different settings. Key Messages To date, the available evidence on the possible predictive value of gene expression assays for radiotherapy does not support their inclusion into the decision-making process for adjuvant radiation. This is due to methodological weaknesses and limitations regarding patient selection, the nonrandomized design of all studies in terms of radiotherapy use, and limited availability of tissue from prospective trials. Thus, utilization of the present knowledge for clinical indication of radiotherapy should be very cautious.
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Affiliation(s)
- David Krug
- Department of Radiation Oncology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - René Baumann
- Department of Radiation Oncology, University Hospital Schleswig-Holstein, Kiel, Germany.,Department of Radiation Oncology, St. Marien-Krankenhaus, Siegen, Germany
| | - Wilfried Budach
- Department of Radiation Oncology, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Marciana Nona Duma
- Department of Radiation Oncology, University Hospital Jena, Jena, Germany
| | - Jürgen Dunst
- Department of Radiation Oncology, University Hospital Schleswig-Holstein, Kiel, Germany
| | | | | | - Wulf Haase
- St.-Vincentius-Hospital, Karlsruhe, Germany
| | | | - Thomas Hehr
- Department of Radiation Oncology, Marienhospital Stuttgart, Stuttgart, Germany
| | - Marc D Piroth
- HELIOS University Hospital Wuppertal, Witten/Herdecke University, Wuppertal, Germany
| | | | | | | | - Rolf Sauer
- University Hospital Erlangen, Erlangen, Germany
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Kayali M, Abi Jaoude J, Tfayli A, El Saghir N, Poortmans P, Zeidan YH. Post-mastectomy radiation therapy in breast cancer patients with 1-3 positive lymph nodes: No one size fits all. Crit Rev Oncol Hematol 2020; 147:102880. [PMID: 32045847 DOI: 10.1016/j.critrevonc.2020.102880] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 12/05/2019] [Accepted: 01/17/2020] [Indexed: 01/04/2023] Open
Abstract
Post-mastectomy radiation therapy (PMRT) is standard therapy for advanced breast cancer. However, given the lower risk of recurrence, PMRT administration remains controversial in select patients with limited nodal disease. We performed a review of the literature that focuses on the effect of PMRT in breast cancer patients with 1-3 positive lymph nodes, mainly examining loco-regional recurrence (LRR) and overall survival (OS). Most studies, including a large meta-analysis by the EBCTCG, showed a significant improvement in LRR rates among patients receiving PMRT. While most studies demonstrated a trend towards OS improvement, only few studies showed a statistically significant OS or breast cancer-specific survival benefit for PMRT. As such, individualized treatment decisions are recommended, taking into consideration clinicopathological findings. Future studies with large sample sizes and long follow-up times are still needed to better assess the role of PMRT in patients with limited nodal involvement.
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Affiliation(s)
- Majd Kayali
- Department of Radiation Oncology, American University of Beirut Medical Center, Beirut, Lebanon
| | | | - Arafat Tfayli
- Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | - Nagi El Saghir
- Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | - Philip Poortmans
- Department of Radiation Oncology, Institut Curie & Paris Sciences & Lettres - PSL University, Paris, France
| | - Youssef H Zeidan
- Department of Radiation Oncology, American University of Beirut Medical Center, Beirut, Lebanon.
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Wu S, Wang J, Lei J, Lian C, Hua L, Zhou J, He Z. Prognostic validation and therapeutic decision-making of the AJCC eighth pathological prognostic staging for T3N0 breast cancer after mastectomy. Clin Transl Med 2020; 10:125-136. [PMID: 32508053 PMCID: PMC7240839 DOI: 10.1002/ctm2.3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 02/26/2020] [Accepted: 02/26/2020] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND T3N0 breast cancer might be a distinct clinical and biological entity, with higher heterogeneity and presenting diverse responses to locoregional and systemic therapy. The aim of the current study was to validate the prognostic effect and assess the treatment decision-making of the American Joint Committee on Cancer (AJCC) eighth pathological prognostic staging in T3N0 breast cancer after mastectomy. METHODS We retrospectively included 2465 patients with stage T3N0 breast cancer who had undergone mastectomy between 2010 and 2014 using the data from Surveillance, Epidemiology, and End Results program. The primary endpoint of this study was breast cancer-specific survival (BCSS). RESULTS Of the entire cohort, 76.0% of patients in the seventh AJCC staging system were restaged to the eighth AJCC pathological prognostic staging system. A total of 1431 (58.1%) and 1175 (47.7%) of them received chemotherapy and postmastectomy radiotherapy (PMRT), respectively. Pathological staging was an independent prognostic factor for BCSS. Using pathological prognostic stage IA as the reference, BCSS gradually became worse with increased hazard ratios. The 5-years BCSS was 96.9%, 95.5%, 91.1%, 85.6%, and 75.5% in pathological prognostic stage IA, IB, IIA, IIB, and IIIA breast cancers, respectively (P < .001). In pathological prognostic stage IA, IB, and IIA breast cancers, the receipt of PMRT or chemotherapy was not correlated with better BCSS. However, PMRT was correlated with better BCSS in pathological prognostic stage IIB disease (P = .006), but not in pathological prognostic IIIA disease. Moreover, chemotherapy was correlated with better BCSS in pathological prognostic stage IIIA disease (P = .006), but not in pathological prognostic stage IIB disease. CONCLUSIONS The eighth AJCC pathological prognostic staging system provides more risk stratification of T3N0 breast cancers after mastectomy and might affect individualized decision-making for chemotherapy and PMRT in this patient subset.
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Affiliation(s)
- San‐Gang Wu
- Department of Radiation OncologyThe First Affiliated Hospital of Xiamen UniversityTeaching Hospital of Fujian Medical UniversityXiamenPeople's Republic of China
| | - Jun Wang
- Department of Radiation OncologyThe First Affiliated Hospital of Xiamen UniversityTeaching Hospital of Fujian Medical UniversityXiamenPeople's Republic of China
| | - Jian Lei
- Department of Obstetrics and GynecologyThe First Affiliated Hospital of Xiamen UniversityTeaching Hospital of Fujian Medical UniversityXiamenPeople's Republic of China
| | - Chen‐Lu Lian
- Department of Radiation OncologyThe First Affiliated Hospital of Xiamen UniversityTeaching Hospital of Fujian Medical UniversityXiamenPeople's Republic of China
| | - Li Hua
- Department of Obstetrics and GynecologyThe First Affiliated Hospital of Xiamen UniversityTeaching Hospital of Fujian Medical UniversityXiamenPeople's Republic of China
| | - Juan Zhou
- Department of Obstetrics and GynecologyThe First Affiliated Hospital of Xiamen UniversityTeaching Hospital of Fujian Medical UniversityXiamenPeople's Republic of China
| | - Zhen‐Yu He
- Department of Radiation OncologyState Key Laboratory of Oncology in South ChinaCollaborative Innovation Center of Cancer MedicineSun Yat‐sen University Cancer CenterGuangzhouPeople's Republic of China
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Clinical-Genomic Models of Node-Positive Breast Cancer: Training, Testing, and Validation. Int J Radiat Oncol Biol Phys 2019; 105:637-648. [DOI: 10.1016/j.ijrobp.2019.06.2546] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 06/21/2019] [Accepted: 06/29/2019] [Indexed: 11/18/2022]
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Zhang WW, Tong Q, Sun JY, Hua X, Long ZQ, Deng JP, Dong Y, Li FY, He ZY, Wu SG, Lin HX. 21-Gene Recurrence Score Assay Could Not Predict Benefit of Post-mastectomy Radiotherapy in T1-2 N1mic ER-Positive HER2-Negative Breast Cancer. Front Oncol 2019; 9:270. [PMID: 31041190 PMCID: PMC6477026 DOI: 10.3389/fonc.2019.00270] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Accepted: 03/25/2019] [Indexed: 01/01/2023] Open
Abstract
Introduction: It is still controversial whether post-mastectomy radiotherapy (PMRT) is necessary for women with T1-2 N1mic ER-positive HER2-negative breast cancer. The 21-gene recurrence score (RS) assay has been validated in T1-2 N1 breast cancer to be prognostic of locoregional recurrence (LRR) and overall survival (OS). This study aims to evaluate the predict value of 21-gene recurrence score assay for the benefit of PMRT in T1-2 N1mic ER-positive HER2-negative breast cancer. Methods: A population-based cohort study was performed on women with T1-2 N1mic ER-positive HER2-negative breast cancer who underwent mastectomy and were evaluated using the 21-gene RS in the Surveillance, Epidemiology, and End Results (SEER) registry between 2004 and 2015. Clinical characteristics as well as OS and breast cancer-specific survival (BCSS) were compared between patients with and without PMRT in patients with a Low-, Intermediate-, and High-RS. Multivariate COX regression analysis was performed to investigate if the 21-gene RS assay could predict benefit of PMRT in this group of breast cancer patients. Results: A total of 1571 patients met the criteria of our study and were enrolled, including 970 patients in the Low-Risk group (score <18), 508 in the Intermediate-Risk group (score 18–30), and 93 patients in the High-Risk group (score >30). In the High-Risk group, there were more patients with age ≥50 (87.0 vs. 64.3%, P = 0.040) and received chemotherapy with a borderline significance (91.3 vs. 72.9%, P = 0.066) in the PMRT subgroup than in the no PMRT subgroup. In all three groups, OS was comparable between the PMRT subgroup and the no PMRT subgroup. Furthermore, multivariate analysis did not show any OS benefit for PMRT based on the 21-gene recurrence score. Conclusion: This study showed that the 21-gene RS assay was not able to predict the benefit of PMRT for OS in women with T1-2 N1mic ER-positive HER2-negative breast cancer. However, further prospective larger sample-size trials are warranted to determine if a benefit exists.
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Affiliation(s)
- Wen-Wen Zhang
- State Key Laboratory of Oncology in Southern China, Department of Radiation Oncology, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Qin Tong
- Department of Radiation Oncology, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Jia-Yuan Sun
- State Key Laboratory of Oncology in Southern China, Department of Radiation Oncology, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Xin Hua
- State Key Laboratory of Oncology in Southern China, Department of Radiation Oncology, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Zhi-Qing Long
- State Key Laboratory of Oncology in Southern China, Department of Radiation Oncology, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Jia-Peng Deng
- State Key Laboratory of Oncology in Southern China, Department of Radiation Oncology, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Yong Dong
- Department of Oncology, Dongguan Third People's Hospital, Affiliated Dongguan Shilong People's Hospital of Southern Medical University, Guangdong, China
| | - Feng-Yan Li
- State Key Laboratory of Oncology in Southern China, Department of Radiation Oncology, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Zhen-Yu He
- State Key Laboratory of Oncology in Southern China, Department of Radiation Oncology, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - San-Gang Wu
- Department of Radiation Oncology, Xiamen Cancer Hospital, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Huan-Xin Lin
- State Key Laboratory of Oncology in Southern China, Department of Radiation Oncology, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
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Chen WR, Deng JP, Wang J, Sun JY, He ZY, Wu SG. Impact of 21-Gene Recurrence Score on Chemotherapy Decision in Invasive Ductal Carcinoma of Breast with Nodal Micrometastases. Cancer Res Treat 2019; 51:1437-1448. [PMID: 30913871 PMCID: PMC6790862 DOI: 10.4143/crt.2018.611] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 03/01/2019] [Indexed: 12/16/2022] Open
Abstract
Purpose The purpose of this study was to investigate the effect of 21-gene recurrence score (RS) on predicting prognosis and chemotherapy decision in node micrometastases (N1mi) breast invasive ductal carcinoma (IDC). Methods Patients with stage T1-2N1mi and estrogen receptor-positive IDC diagnosed between 2004 and 2015 were included. The associations of 21-gene RS with breast cancer-specific survival (BCSS), chemotherapy decision, and benefit of chemotherapy were analyzed. Results We identified 4,758 patients including 1,403 patients (29.5%) treated with adjuvant chemotherapy. In the traditional RS cutoffs, 2,831 (59.5%), 1,634 (34.3%), and 293 (6.2%) patients were in the low-, intermediate-, and high-risk RS groups, respectively. In 3,853 patients with human epidermal growth factor receptor-2 (HER2) status available, most patients were HER2-negative disease (98.3%). A higher RS was independently related to chemotherapy receipt, and 14.0%, 47.7%, and 77.8% of patients in the low-, intermediate-, and high-risk RS groups received chemotherapy, respectively. The multivariate analysis indicated that a higher RS was related to worse BCSS (p < 0.001). The 5-year BCSS rates were 99.3%, 97.4%, and 91.9% in patients with low-, intermediate-, and high-risk RS groups, respectively (p < 0.001). However, chemotherapy receipt did not correlate with better BCSS in low-, intermediate-, or high-risk RS groups. There were similar trends using Trial Assigning Individualized Options for Treatment RS cutoffs. Conclusion The 21-gene RS does predict outcome and impact on chemotherapy decision of N1mi breast IDC. Large cohort and long-term outcomes studies are needed to identify the effects of chemotherapy in N1mi patients by different 21-gene RS groups.
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Affiliation(s)
- Wei-Rong Chen
- Department of Breast Surgery, Zhuhai Maternity and Child Health Hospital, Zhuhai, China
| | - Jia-Peng Deng
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, China
| | - Jun Wang
- Department of Radiation Oncology, Cancer Hospital, The First Affiliated Hospital of Xiamen University, Teaching Hospital of Fujian Medical University, Xiamen, China
| | - Jia-Yuan Sun
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, China
| | - Zhen-Yu He
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, China
| | - San-Gang Wu
- Department of Radiation Oncology, Cancer Hospital, The First Affiliated Hospital of Xiamen University, Teaching Hospital of Fujian Medical University, Xiamen, China
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Wu SG, Zhang WW, Wang J, Dong Y, Chen YX, He ZY. Effect of 21-gene recurrence score in decision-making for surgery in early stage breast cancer. Onco Targets Ther 2019; 12:2071-2078. [PMID: 30962690 PMCID: PMC6433114 DOI: 10.2147/ott.s199625] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Aim We aimed to assess the role of 21-gene recurrence score (RS) in the decision-making for surgical treatment in early stage breast cancer and compared the outcomes between breast-conserving surgery (BCS) and mastectomy (MAST) among various 21-gene RS groups. Methods We included patients with stage T1-2M0M0 and estrogen receptor-positive breast invasive ductal carcinoma who underwent BCS + radiotherapy or MAST between 2004 and 2012 as part of the Surveillance, Epidemiology, and End Results program. Data were analyzed using binomial logistic regression, multivariate Cox proportional hazards models, and propensity score matching (PSM). Results We enrolled 34,447 patients including 22,681 (65.8%) and 11,766 (34.2%) who underwent BCS and MAST, respectively. Patients with high-risk RS were more likely to receive MAST. Multivariate analysis indicated that patients with intermediate-risk (P<0.001) and high-risk (P<0.001) RS had poor breast cancer-specific survival (BCSS), as compared to those with low-risk RS. Moreover, patients who underwent MAST also exhibited poor BCSS (P<0.001), as compared to those who underwent BCS. In low-risk (P<0.001) and intermediate-risk (P=0.020) RS groups, patients who underwent MAST had poor BCSS, as compared to those treated with BCS. However, BCSS was comparable between patients who underwent MAST and BCS (P=0.952); similar trends were also observed after PSM. Conclusion The 21-gene RS may impact the decision-making for surgery in early stage breast cancer. Our study provides additional support for a shared decision-making process for BCS when both local management options are appropriate choices regardless of the 21-gene RS.
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Affiliation(s)
- San-Gang Wu
- Department of Radiation Oncology, Cancer Hospital, The First Affiliated Hospital of Xiamen University, Teaching Hospital of Fujian Medical University, Xiamen 361003, People's Republic of China
| | - Wen-Wen Zhang
- Department of Radiation Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou 510060, People's Republic of China,
| | - Jun Wang
- Department of Radiation Oncology, Cancer Hospital, The First Affiliated Hospital of Xiamen University, Teaching Hospital of Fujian Medical University, Xiamen 361003, People's Republic of China
| | - Yong Dong
- Department of Oncology, Dongguan Third People's Hospital, Affiliated Dongguan Shilong People's Hospital of Southern Medical University, Dongguan 523326, People's Republic of China
| | - Yong-Xiong Chen
- Eye Institute of Xiamen University, Fujian Provincial Key Laboratory of Ophthalmology and Visual Science, Medical College, Xiamen University, Xiamen 361005, People's Republic of China,
| | - Zhen-Yu He
- Department of Radiation Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou 510060, People's Republic of China,
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Dong Y, Zhang WW, Wang J, Sun JY, He ZY, Wu SG. The 21-gene recurrence score and effects of adjuvant radiotherapy after breast conserving surgery in early-stage breast cancer. Future Oncol 2019; 15:1629-1639. [PMID: 30864836 DOI: 10.2217/fon-2018-0967] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Aim: To investigate the associations with the 21-gene recurrence score (RS) and effect of adjuvant radiotherapy (RT) for early-stage breast cancer after breast conserving surgery. Methods: We included 13,246 patients in the SEER database. Results: Patients with a higher RS were independently related to nonreceipt of RT (p < 0.001). In both the traditional and Trial Assigning Individualized Options for Treatment (TAILORx) RS cut-offs, the receipt of RT was not related to better breast cancer-specific survival in low- and high-risk RS groups, but was independently related to better breast cancer-specific survival in intermediate-risk RS group before (p = 0.029) and after (p = 0.001) propensity score matching. Conclusion: The 21-gene-RS may impact the decision-making of adjuvant RT in early-stage breast cancer after breast conserving surgery. The survival benefit of adjuvant RT may be limited to patients with intermediate-risk RS.
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Affiliation(s)
- Yong Dong
- Department of Oncology, Dongguan Third People's Hospital, Affiliated Dongguan Shilong People's Hospital of Southern Medical University, Dongguan 523326, PR China
| | - Wen-Wen Zhang
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou 510060, PR China
| | - Jun Wang
- Department of Radiation Oncology, Cancer Hospital, the First Affiliated Hospital of Xiamen University, Teaching Hospital of Fujian Medical University, Xiamen 361003, PR China
| | - Jia-Yuan Sun
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou 510060, PR China
| | - Zhen-Yu He
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou 510060, PR China
| | - San-Gang Wu
- Department of Radiation Oncology, Cancer Hospital, the First Affiliated Hospital of Xiamen University, Teaching Hospital of Fujian Medical University, Xiamen 361003, PR China
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Wu SG, Zhang WW, Wang J, Dong Y, Sun JY, Chen YX, He ZY. 21-Gene Recurrence Score Assay and Outcomes of Adjuvant Radiotherapy in Elderly Women With Early-Stage Breast Cancer After Breast-Conserving Surgery. Front Oncol 2019; 9:1. [PMID: 30761267 PMCID: PMC6361832 DOI: 10.3389/fonc.2019.00001] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 01/02/2019] [Indexed: 11/22/2022] Open
Abstract
Introduction: To assess the role of the 21-gene recurrence score (RS) assay on decision-making of postoperative radiotherapy (RT) following breast-conserving surgery (BCS) in elderly women with early-stage breast cancer. Methods: The 21-gene RS for elderly (≥65 years) women with stage T1-2N0M0 estrogen receptor-positive breast cancer who underwent BCS from 2004 to 2015 was obtained from the Surveillance, Epidemiology, and End Results program. We estimated the association of 21-gene RS and adjuvant RT related to breast cancer-specific survival (BCSS) using propensity score matching (PSM). Results: We identified 18,456 patients, of which 15,326 (83.0%) received postoperative RT. Of identified patients, 58.9, 34.0, and 7.1% of patients had a low-, intermediate-, and high-risk RS, respectively. Receipt of postoperative RT was not related to the year of diagnosis according to the 21-gene RS groups. Multivariate analysis suggested that receipt of postoperative RT was an independent predictor of better BCSS before (hazard ratio [HR] 0.587, 95% confidence interval [CI] 0.426-0.809, P = 0.001) and after (HR 0.613, 95%CI 0.390-0.963, P = 0.034) PSM. However, subgroups analyses indicated that receipt of postoperative RT was related to better BCSS in women with intermediate-risk RS before (HR 0.467, 95%CI 0.283-0.772, P = 0.003) and after (HR 0.389, 95%CI 0.179-0.846, P = 0.017) PSM, but not in women with low- and high-risk RS groups before and after PSM. Conclusions: Although causation cannot be implied, adjuvant RT in elderly women was associated with a greater effect size in patients with an intermediate-risk RS.
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Affiliation(s)
- San-Gang Wu
- Department of Radiation Oncology, Cancer Hospital, The First Affiliated Hospital of Xiamen University, Teaching Hospital of Fujian Medical University, Xiamen, China
| | - Wen-Wen Zhang
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, China
| | - Jun Wang
- Department of Radiation Oncology, Cancer Hospital, The First Affiliated Hospital of Xiamen University, Teaching Hospital of Fujian Medical University, Xiamen, China
| | - Yong Dong
- Department of Oncology, Dongguan Third People's Hospital, Affiliated Dongguan Shilong People's Hospital of Southern Medical University, Dongguan, China
| | - Jia-Yuan Sun
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, China
| | - Yong-Xiong Chen
- Eye Institute of Xiamen University, Fujian Provincial Key Laboratory of Ophthalmology and Visual Science, Medical College, Xiamen University, Xiamen, China
| | - Zhen-Yu He
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, China
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