Real-world data on neoadjuvant chemotherapy with dual-anti HER2 therapy in HER2 positive breast cancer

Abstract Background Neoadjuvant chemotherapy with dual-targeted therapy is the standard treatment for human epidermal growth factor 2 (HER2)-positive breast cancer. Although the dual-targeted therapy has significantly improved the pathological complete response (pCR) rate, further investigation is n...

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Main Authors: Zheng-Jun Yang, Fei Xin, Zu-Jin Chen, Yue Yu, Xin Wang, Xu-Chen Cao
Format: Article
Language:English
Published: BMC 2024-01-01
Series:BMC Cancer
Subjects:
Online Access:https://doi.org/10.1186/s12885-024-11871-0
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author Zheng-Jun Yang
Fei Xin
Zu-Jin Chen
Yue Yu
Xin Wang
Xu-Chen Cao
author_facet Zheng-Jun Yang
Fei Xin
Zu-Jin Chen
Yue Yu
Xin Wang
Xu-Chen Cao
author_sort Zheng-Jun Yang
collection DOAJ
description Abstract Background Neoadjuvant chemotherapy with dual-targeted therapy is the standard treatment for human epidermal growth factor 2 (HER2)-positive breast cancer. Although the dual-targeted therapy has significantly improved the pathological complete response (pCR) rate, further investigation is needed to identify biomarkers that predict the response to neoadjuvant therapy. Methods This retrospective study analyzed 353 patients with HER2-positive breast invasive ductal carcinoma. The correlation between clinicopathological factors and pCR rate was evaluated. A nomogram was constructed based on the results of the multivariate logistic regression analysis to predict the probability of pCR. Results The breast pCR (b-pCR) rate was 56.1% (198/353) and the total pCR (t-pCR) rate was 52.7% (186/353). Multivariate analysis identified ER status, PR status, HER2 status, Ki-67 index, and neoadjuvant chemotherapy regimens as independent indicators for both b-pCR and t-pCR. The nomogram had an area under the receiver operating characteristic curve (AUC) of 0.73 (95% CI: 0.68–0.78). According to the nomogram, the t- pCR rate was highest in the ER-PR- HER2-positive patients (131/208) and lowest in the ER + PR + HER2-positive patients (19/73). The subgroup analyses showed that there was no significant difference in pCR rate among the neoadjuvant chemotherapy regimens in ER positive, PR positive, HER2 IHC 2 + , Ki67 index < 30% population. However, for ER-PR-HER2-positive patients, the neoadjuvant chemotherapy regimen has a great influence on the pCR rates. Conclusions Patients with ER-negative, PR-negative, HER2 3 + and high KI-67 index were more likely to achieve pCR. THP may be used as an alternative to AC-THP or TCbHP in selected HER2-positive patients.
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spelling doaj.art-b9a53d4423e0479298031e15d60fc02d2024-03-05T16:32:44ZengBMCBMC Cancer1471-24072024-01-0124111010.1186/s12885-024-11871-0Real-world data on neoadjuvant chemotherapy with dual-anti HER2 therapy in HER2 positive breast cancerZheng-Jun Yang0Fei Xin1Zu-Jin Chen2Yue Yu3Xin Wang4Xu-Chen Cao5The First Department of Breast Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for CancerThe First Department of Breast Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for CancerThe First Department of Breast Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for CancerThe First Department of Breast Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for CancerThe First Department of Breast Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for CancerThe First Department of Breast Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for CancerAbstract Background Neoadjuvant chemotherapy with dual-targeted therapy is the standard treatment for human epidermal growth factor 2 (HER2)-positive breast cancer. Although the dual-targeted therapy has significantly improved the pathological complete response (pCR) rate, further investigation is needed to identify biomarkers that predict the response to neoadjuvant therapy. Methods This retrospective study analyzed 353 patients with HER2-positive breast invasive ductal carcinoma. The correlation between clinicopathological factors and pCR rate was evaluated. A nomogram was constructed based on the results of the multivariate logistic regression analysis to predict the probability of pCR. Results The breast pCR (b-pCR) rate was 56.1% (198/353) and the total pCR (t-pCR) rate was 52.7% (186/353). Multivariate analysis identified ER status, PR status, HER2 status, Ki-67 index, and neoadjuvant chemotherapy regimens as independent indicators for both b-pCR and t-pCR. The nomogram had an area under the receiver operating characteristic curve (AUC) of 0.73 (95% CI: 0.68–0.78). According to the nomogram, the t- pCR rate was highest in the ER-PR- HER2-positive patients (131/208) and lowest in the ER + PR + HER2-positive patients (19/73). The subgroup analyses showed that there was no significant difference in pCR rate among the neoadjuvant chemotherapy regimens in ER positive, PR positive, HER2 IHC 2 + , Ki67 index < 30% population. However, for ER-PR-HER2-positive patients, the neoadjuvant chemotherapy regimen has a great influence on the pCR rates. Conclusions Patients with ER-negative, PR-negative, HER2 3 + and high KI-67 index were more likely to achieve pCR. THP may be used as an alternative to AC-THP or TCbHP in selected HER2-positive patients.https://doi.org/10.1186/s12885-024-11871-0HER2 positiveBreast cancerNeoadjuvant chemotherapyDual-targeted therapy
spellingShingle Zheng-Jun Yang
Fei Xin
Zu-Jin Chen
Yue Yu
Xin Wang
Xu-Chen Cao
Real-world data on neoadjuvant chemotherapy with dual-anti HER2 therapy in HER2 positive breast cancer
BMC Cancer
HER2 positive
Breast cancer
Neoadjuvant chemotherapy
Dual-targeted therapy
title Real-world data on neoadjuvant chemotherapy with dual-anti HER2 therapy in HER2 positive breast cancer
title_full Real-world data on neoadjuvant chemotherapy with dual-anti HER2 therapy in HER2 positive breast cancer
title_fullStr Real-world data on neoadjuvant chemotherapy with dual-anti HER2 therapy in HER2 positive breast cancer
title_full_unstemmed Real-world data on neoadjuvant chemotherapy with dual-anti HER2 therapy in HER2 positive breast cancer
title_short Real-world data on neoadjuvant chemotherapy with dual-anti HER2 therapy in HER2 positive breast cancer
title_sort real world data on neoadjuvant chemotherapy with dual anti her2 therapy in her2 positive breast cancer
topic HER2 positive
Breast cancer
Neoadjuvant chemotherapy
Dual-targeted therapy
url https://doi.org/10.1186/s12885-024-11871-0
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