PIK3CA mutations are associated with pathologic complete response rate to neoadjuvant pyrotinib and trastuzumab plus chemotherapy for HER2-positive breast cancer
© 2022. The Author(s)..
BACKGROUND: Neoadjuvant treatment with a dual anti-human epidermal growth factor receptor 2 (HER2) blockade with pyrotinib and trastuzumab has been shown to be effective for HER2-positive breast cancer.
METHODS: The genomic characteristics of 425 cancer-related genes from the archived tumour blocks of 50 patients enrolled in a prospective neoadjuvant pyrotinib and trastuzumab plus chemotherapy clinical trial (ChiCTR1900022293) were assessed by next-generation sequencing (NGS). The relationship between tumour biomarkers and the postoperative pathological complete response (pCR) were explored.
RESULTS: Forty-five patients completed neoadjuvant chemotherapy and final surgery, of which 26 (58%) achieved a pCR. Among all driver gene mutations, PIK3CA mutation was screened out for having a significant relationship with the treatment response. The pCR rate of patients with wild-type PIK3CA was significantly higher than patients with mutated PIK3CA (80.8% vs. 26.3%; P = 0.00057), and remained significant after a multiple comparison adjustment (Padjusted = 0.024). We further evaluated the predictive value with logistic regression model of clinical features, genetic biomarkers or both, an AUC of 0.912 (95% CI: 0.827-0.997) was achieved in the integrated model.
CONCLUSIONS: Our data suggest that HER2-positive breast cancers with activating mutations in PIK3CA are less likely to benefit from pyrotinib combined with trastuzumab neoadjuvant therapy.
Medienart: |
E-Artikel |
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Erscheinungsjahr: |
2023 |
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Erschienen: |
2023 |
Enthalten in: |
Zur Gesamtaufnahme - volume:128 |
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Enthalten in: |
British journal of cancer - 128(2023), 1 vom: 02. Jan., Seite 121-129 |
Sprache: |
Englisch |
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Beteiligte Personen: |
Shi, Qiyun [VerfasserIn] |
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Links: |
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Anmerkungen: |
Date Completed 09.01.2023 Date Revised 09.02.2023 published: Print-Electronic Citation Status MEDLINE |
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doi: |
10.1038/s41416-022-02021-z |
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funding: |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
NLM348378491 |
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245 | 1 | 0 | |a PIK3CA mutations are associated with pathologic complete response rate to neoadjuvant pyrotinib and trastuzumab plus chemotherapy for HER2-positive breast cancer |
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500 | |a Citation Status MEDLINE | ||
520 | |a © 2022. The Author(s). | ||
520 | |a BACKGROUND: Neoadjuvant treatment with a dual anti-human epidermal growth factor receptor 2 (HER2) blockade with pyrotinib and trastuzumab has been shown to be effective for HER2-positive breast cancer | ||
520 | |a METHODS: The genomic characteristics of 425 cancer-related genes from the archived tumour blocks of 50 patients enrolled in a prospective neoadjuvant pyrotinib and trastuzumab plus chemotherapy clinical trial (ChiCTR1900022293) were assessed by next-generation sequencing (NGS). The relationship between tumour biomarkers and the postoperative pathological complete response (pCR) were explored | ||
520 | |a RESULTS: Forty-five patients completed neoadjuvant chemotherapy and final surgery, of which 26 (58%) achieved a pCR. Among all driver gene mutations, PIK3CA mutation was screened out for having a significant relationship with the treatment response. The pCR rate of patients with wild-type PIK3CA was significantly higher than patients with mutated PIK3CA (80.8% vs. 26.3%; P = 0.00057), and remained significant after a multiple comparison adjustment (Padjusted = 0.024). We further evaluated the predictive value with logistic regression model of clinical features, genetic biomarkers or both, an AUC of 0.912 (95% CI: 0.827-0.997) was achieved in the integrated model | ||
520 | |a CONCLUSIONS: Our data suggest that HER2-positive breast cancers with activating mutations in PIK3CA are less likely to benefit from pyrotinib combined with trastuzumab neoadjuvant therapy | ||
650 | 4 | |a Journal Article | |
650 | 4 | |a Research Support, Non-U.S. Gov't | |
650 | 7 | |a Trastuzumab |2 NLM | |
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700 | 1 | |a Xuhong, Juncheng |e verfasserin |4 aut | |
700 | 1 | |a Luo, Tao |e verfasserin |4 aut | |
700 | 1 | |a Ge, Jia |e verfasserin |4 aut | |
700 | 1 | |a Liu, Feng |e verfasserin |4 aut | |
700 | 1 | |a Lan, Yang |e verfasserin |4 aut | |
700 | 1 | |a Chen, Qingqiu |e verfasserin |4 aut | |
700 | 1 | |a Tang, Peng |e verfasserin |4 aut | |
700 | 1 | |a Fan, Linjun |e verfasserin |4 aut | |
700 | 1 | |a Chen, Li |e verfasserin |4 aut | |
700 | 1 | |a Liang, Yan |e verfasserin |4 aut | |
700 | 1 | |a Wang, Minghao |e verfasserin |4 aut | |
700 | 1 | |a Hu, Ying |e verfasserin |4 aut | |
700 | 1 | |a Zhang, Yi |e verfasserin |4 aut | |
700 | 1 | |a Bian, Xiuwu |e verfasserin |4 aut | |
700 | 1 | |a Qi, Xiaowei |e verfasserin |4 aut | |
700 | 1 | |a Jiang, Jun |e verfasserin |4 aut | |
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