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Houvenaeghel G, Cohen M, Gonçalves A, Berthelot A, Chauvet MP, Faure C, Classe JM, Jouve E, Sabiani L, Bannier M, Tassy L, Martino M, Tallet A, de Nonneville A. Triple-negative and Her2-positive breast cancer in women aged 70 and over: prognostic impact of age according to treatment. Front Oncol 2023; 13:1287253. [PMID: 38162480 PMCID: PMC10757327 DOI: 10.3389/fonc.2023.1287253] [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: 09/01/2023] [Accepted: 11/30/2023] [Indexed: 01/03/2024] Open
Abstract
Background Elderly breast cancer (BC) patients have been underrepresented in clinical trials whereas ~60% of deaths from BC occur in women aged 70 years and older. Only limited data are available on the prognostic impact of age according to treatment, especially in the triple-negative (TN) and Her2-positive because of the lower frequency of these subtypes in elderly patients. We report herein the results of a multicenter retrospective study analyzing the prognostic impact of age according to treatment delivered in TN and Her2-positive BC patients of 70 years or older, including comparison by age groups. Methods The medical records of 31,473 patients treated from January 1991 to December 2018 were retrieved from 13 French cancer centers for retrospective analysis. Our study population included all ≥70 patients with TN or Her2-positive BC treated by upfront surgery. Three age categories were determined: 70-74, 75-80, and > 80 years. Results Of 528 patients included, 243 patients were 70-74 years old (46%), 172 were 75-80 years (32.6%) and 113 were >80 years (21.4%). Half the population (51.9%, 274 patients) were TN, 30.1% (159) Her2-positive/hormone receptors (HR)-positive, and, 18% (95) Her2-positive/endocrine receptors (ER)-negative BC. Advanced tumor stage was associated with older age but no other prognostic factors (tumor subtype, tumor grade, LVI). Adjuvant chemotherapy delivery was inversely proportional to age. With 49 months median follow-up, all patient outcomes (overall survival (OS), disease-free survival (DFS), breast cancer-specific survival (BCSS), and recurrence-free survival (RFS)) significantly decreased as age increased. In multivariate analysis, age >80, pT2-3 sizes, axillary macrometastases, lymphovascular involvement, and HR-negativity tumor negatively affected DFS and OS. Comparison between age >80 and <=80 years old showed worse RFS in patients aged > 80 (HR=1.771, p=0.031). Conclusion TN and Her2-positive subtypes occur at similar frequency in elderly patients. Older age is associated with more advanced tumor stage presentation. Chemotherapy use decreases with older age without worse other pejorative prognostic factors. Age >80, but not ≤80, independently affected DFS and OS.
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Affiliation(s)
- Gilles Houvenaeghel
- Department of Surgical Oncology, Cancer Research Center of Marseille (CRCM), Institut Paoli−Calmettes, Aix-Marseille Univ, CNRS, INSERM, Marseille, France
| | - Monique Cohen
- Department of Surgical Oncology, Cancer Research Center of Marseille (CRCM), Institut Paoli−Calmettes, Aix-Marseille Univ, CNRS, INSERM, Marseille, France
| | - Anthony Gonçalves
- Department of Medical Oncology, Cancer Research Center of Marseille (CRCM), Institut Paoli−Calmettes, Aix-Marseille Univ, CNRS, INSERM, Marseille, France
| | - Axel Berthelot
- Department of Medical Oncology, Cancer Research Center of Marseille (CRCM), Institut Paoli−Calmettes, Aix-Marseille Univ, CNRS, INSERM, Marseille, France
| | | | | | - Jean Marc Classe
- Institut René Gauducheau, Site hospitalier Nord, St Herblain, France
| | - Eva Jouve
- Surgical Oncology Department, Centre Claudius Regaud, Toulouse, France
| | - Laura Sabiani
- Department of Surgical Oncology, Cancer Research Center of Marseille (CRCM), Institut Paoli−Calmettes, Aix-Marseille Univ, CNRS, INSERM, Marseille, France
| | - Marie Bannier
- Department of Surgical Oncology, Cancer Research Center of Marseille (CRCM), Institut Paoli−Calmettes, Aix-Marseille Univ, CNRS, INSERM, Marseille, France
| | - Louis Tassy
- Department of Medical Oncology, Cancer Research Center of Marseille (CRCM), Institut Paoli−Calmettes, Aix-Marseille Univ, CNRS, INSERM, Marseille, France
| | - Marc Martino
- Department of Surgical Oncology, Cancer Research Center of Marseille (CRCM), Institut Paoli−Calmettes, Aix-Marseille Univ, CNRS, INSERM, Marseille, France
| | - Agnès Tallet
- Department of Radiotherapy, Cancer Research Center of Marseille (CRCM), Institut Paoli−Calmettes, Aix-Marseille Univ, CNRS, INSERM, Marseille, France
| | - Alexandre de Nonneville
- Department of Medical Oncology, Cancer Research Center of Marseille (CRCM), Institut Paoli−Calmettes, Aix-Marseille Univ, CNRS, INSERM, Marseille, France
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Miller K, Gannon MR, Medina J, Clements K, Dodwell D, Horgan K, Park MH, Cromwell DA. The Association Between Survival and Receipt of Post-mastectomy Radiotherapy According to Age at Diagnosis Among Women With Early Invasive Breast Cancer: A Population-Based Cohort Study. Clin Oncol (R Coll Radiol) 2023; 35:e265-e277. [PMID: 36764877 DOI: 10.1016/j.clon.2023.01.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 11/08/2022] [Accepted: 01/16/2023] [Indexed: 01/25/2023]
Abstract
AIMS Clinical trials of post-mastectomy radiotherapy (PMRT) for early invasive breast cancer (EIBC) have included few older women. This study examined whether the association between overall survival or breast cancer-specific survival (BCSS) and receipt of PMRT for EIBC altered with age. MATERIALS AND METHODS The study used patient-level linked cancer registration, routine hospital and radiotherapy data for England and Wales. It included 31 243 women aged ≥50 years diagnosed between 2014 and 2018 with low- (T1-2N0), intermediate- (T3N0/T1-2N1) or high-risk (T1-2N2/T3N1-2) EIBC who received a mastectomy within 12 months from diagnosis. Patterns of survival were analysed using a landmark approach. Associations between overall survival/BCSS and PMRT in each risk group were analysed with flexible parametric survival models, which included patient and tumour factors; whether the association between PMRT and overall survival/BCSS varied by age was assessed using interaction terms. RESULTS Among 4711 women with high-risk EIBC, 86% had PMRT. Five-year overall survival was 70.5% and BCSS was 79.3%. Receipt of PMRT was associated with improved overall survival [adjusted hazard ratio (aHR) 0.75, 95% confidence interval 0.64-0.87] and BCSS (aHR 0.78, 95% confidence interval 0.65-0.95) compared with women who did not have PMRT; associations did not vary by age (overall survival, P-value for interaction term = 0.141; BCSS, P = 0.077). Among 10 814 women with intermediate-risk EIBC, 59% had PMRT; 5-year overall survival was 78.4% and BCSS was 88.0%. No association was found between overall survival (aHR 1.01, 95% confidence interval 0.92-1.11) or BCSS (aHR 1.16, 95% confidence interval 1.01-1.32) and PMRT. There was statistical evidence of a small change in the association with age for overall survival (P = 0.007), although differences in relative survival were minimal, but not for BCSS (P = 0.362). CONCLUSIONS The association between PMRT and overall survival/BCSS does not appear to be modified by age among women with high- or intermediate-risk EIBC and, thus, treatment recommendations should not be modified on the basis of age alone.
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Affiliation(s)
- K Miller
- Clinical Effectiveness Unit, The Royal College of Surgeons of England, London, UK; Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, London, UK.
| | - M R Gannon
- Clinical Effectiveness Unit, The Royal College of Surgeons of England, London, UK; Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, London, UK
| | - J Medina
- Clinical Effectiveness Unit, The Royal College of Surgeons of England, London, UK
| | - K Clements
- National Cancer Registration and Analysis Service, NHS Digital, Birmingham, UK
| | - D Dodwell
- Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - K Horgan
- Department of Breast Surgery, St James's University Hospital, Leeds, UK
| | - M H Park
- Clinical Effectiveness Unit, The Royal College of Surgeons of England, London, UK; Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, London, UK
| | - D A Cromwell
- Clinical Effectiveness Unit, The Royal College of Surgeons of England, London, UK; Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, London, UK
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