Achieving treatment goals in older breast cancer patients receiving neoadjuvant chemotherapy

Abstract Neoadjuvant chemotherapy (NAC) is well-established for locally advanced breast cancer, even in the early stages, especially in HER2-positive and triple-negative cases. However, the effect of chronologic age on NAC response remains controversial. This study investigates the efficacy and outc...

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Main Authors: Eda Caliskan Yildirim, Elif Atag, Huseyin Salih Semiz, Olcun Umit Unal, Mehmet Uzun, Suleyman Ozkan Aksoy, Merih Guray Durak, Aziz Karaoglu
Format: Article
Language:English
Published: Nature Portfolio 2025-03-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-93203-1
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author Eda Caliskan Yildirim
Elif Atag
Huseyin Salih Semiz
Olcun Umit Unal
Mehmet Uzun
Suleyman Ozkan Aksoy
Merih Guray Durak
Aziz Karaoglu
author_facet Eda Caliskan Yildirim
Elif Atag
Huseyin Salih Semiz
Olcun Umit Unal
Mehmet Uzun
Suleyman Ozkan Aksoy
Merih Guray Durak
Aziz Karaoglu
author_sort Eda Caliskan Yildirim
collection DOAJ
description Abstract Neoadjuvant chemotherapy (NAC) is well-established for locally advanced breast cancer, even in the early stages, especially in HER2-positive and triple-negative cases. However, the effect of chronologic age on NAC response remains controversial. This study investigates the efficacy and outcomes of NAC in older patients with breast cancer, compared to a younger cohort, to address the current knowledge gap. 535 patients who received NAC followed by curative surgery from 2010 to 2021 were retrospectively analyzed. We evaluated breast and axillary downstaging, pathologic complete response (pCR), and post-treatment toxicities. Data were stratified by age, with patients aged 65 years and older representing the older group. Anthracycline-based chemotherapy was prevalent (97.6%) and favored younger patients who received a dose-dense anthracycline regimen (71.7% vs. 38.5%, p < 0.001). Surgical outcomes, breast and axillary downstaging, and the pathologic complete response showed no age-related differences. Grade 3–4 toxicity was higher in older patients (71% vs. 46.4%, p < 0.01). Older patients treated with NAC achieve comparable outcomes to younger patients, supporting personalized treatment. Chronologic age should not dictate treatment decisions, emphasizing the need for comprehensive evaluation for optimal geriatric patient care.
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spelling doaj-art-96dbd0feef894d42876b63ed38c4f4072025-08-20T02:41:32ZengNature PortfolioScientific Reports2045-23222025-03-011511810.1038/s41598-025-93203-1Achieving treatment goals in older breast cancer patients receiving neoadjuvant chemotherapyEda Caliskan Yildirim0Elif Atag1Huseyin Salih Semiz2Olcun Umit Unal3Mehmet Uzun4Suleyman Ozkan Aksoy5Merih Guray Durak6Aziz Karaoglu7Department of Internal Medicine, Division of Medical Oncology, Dokuz Eylul UniversityDepartment of Internal Medicine, Division of Medical Oncology, Dokuz Eylul UniversityDepartment of Internal Medicine, Division of Medical Oncology, Dokuz Eylul UniversityDepartment of Internal Medicine, Health Sciences University Izmir Faculty of MedicineDepartment of Internal Medicine, Division of Medical Oncology, Dokuz Eylul UniversityDepartment of General Surgery, Dokuz Eylul UniversityDepartment of Pathology, Dokuz Eylul UniversityDepartment of Internal Medicine, Division of Medical Oncology, Dokuz Eylul UniversityAbstract Neoadjuvant chemotherapy (NAC) is well-established for locally advanced breast cancer, even in the early stages, especially in HER2-positive and triple-negative cases. However, the effect of chronologic age on NAC response remains controversial. This study investigates the efficacy and outcomes of NAC in older patients with breast cancer, compared to a younger cohort, to address the current knowledge gap. 535 patients who received NAC followed by curative surgery from 2010 to 2021 were retrospectively analyzed. We evaluated breast and axillary downstaging, pathologic complete response (pCR), and post-treatment toxicities. Data were stratified by age, with patients aged 65 years and older representing the older group. Anthracycline-based chemotherapy was prevalent (97.6%) and favored younger patients who received a dose-dense anthracycline regimen (71.7% vs. 38.5%, p < 0.001). Surgical outcomes, breast and axillary downstaging, and the pathologic complete response showed no age-related differences. Grade 3–4 toxicity was higher in older patients (71% vs. 46.4%, p < 0.01). Older patients treated with NAC achieve comparable outcomes to younger patients, supporting personalized treatment. Chronologic age should not dictate treatment decisions, emphasizing the need for comprehensive evaluation for optimal geriatric patient care.https://doi.org/10.1038/s41598-025-93203-1Breast cancerNeoadjuvant chemotherapyPCROlder patientsDownstaging
spellingShingle Eda Caliskan Yildirim
Elif Atag
Huseyin Salih Semiz
Olcun Umit Unal
Mehmet Uzun
Suleyman Ozkan Aksoy
Merih Guray Durak
Aziz Karaoglu
Achieving treatment goals in older breast cancer patients receiving neoadjuvant chemotherapy
Scientific Reports
Breast cancer
Neoadjuvant chemotherapy
PCR
Older patients
Downstaging
title Achieving treatment goals in older breast cancer patients receiving neoadjuvant chemotherapy
title_full Achieving treatment goals in older breast cancer patients receiving neoadjuvant chemotherapy
title_fullStr Achieving treatment goals in older breast cancer patients receiving neoadjuvant chemotherapy
title_full_unstemmed Achieving treatment goals in older breast cancer patients receiving neoadjuvant chemotherapy
title_short Achieving treatment goals in older breast cancer patients receiving neoadjuvant chemotherapy
title_sort achieving treatment goals in older breast cancer patients receiving neoadjuvant chemotherapy
topic Breast cancer
Neoadjuvant chemotherapy
PCR
Older patients
Downstaging
url https://doi.org/10.1038/s41598-025-93203-1
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