We thank Dr. Bravaccini et al. for their thoughtful comments on our work [
[1]
] on the evolution of HER2-low expression between early and advanced breast cancer.
The authors highlight some important challenges existing in the diagnosis of HER2-low
breast cancer, an entity still under definition.To read this article in full you will need to make a payment
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References
- Evolution of low HER2 expression between early and advanced-stage breast cancer.Eur J Cancer. Mar. 2022; 163: 35-43https://doi.org/10.1016/j.ejca.2021.12.022
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Article info
Publication history
Published online: November 09, 2022
Accepted:
October 14,
2022
Received:
October 12,
2022
Identification
Copyright
© 2022 Elsevier Ltd. All rights reserved.
ScienceDirect
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- Evolution of low HER2 expression between early and advanced-stage breast cancerEuropean Journal of CancerVol. 163
- PreviewLow human epidermal growth factor receptor 2 (HER2) expression is emerging as an actionable biomarker for the treatment of breast cancer (BC) with novel anti-HER2 drugs. However, the evolution of this biomarker during the course of disease is still poorly characterised, and controversial data exist on its prognostic implications.
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- Re: “Evolution of low HER2 expression between early and advanced-stage breast cancer”European Journal of CancerVol. 179
- PreviewIn a phase 3, multicentre, open-label, randomised trial, trastuzumab deruxtecan (TD) was superior to the standard of care trastuzumab emtansine in patients with HER2-positive metastatic breast cancer (mBC) previously treated with trastuzumab and a taxane [1]. Then, a phase 3 trial with HER2-low mBC patients (defined as 1+ and 2+ by immunohistochemistry [IHC] or negative by in situ hybridisation [ISH]) who had received previous lines of chemotherapy was performed [2]. In this trial TD resulted in significantly longer progression-free and overall survival than the physician's choice of chemotherapy.
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