^
    over1year
    Clinicopathological characteristics, evolution, treatment patterns and outcomes of hormone-receptor-positive/HER2-low-positive metastatic breast cancer: A retrospective analysis. (ASCO 2023)
    HR-positive MBC patients with HER2-low and HER2-zero expression responded similarly to endocrine therapy. But HER2-low-positivity in HR-positive MBC may reduce chemotherapeutic effectiveness and HER2 heterogeneity should be taken into consideration.
    Retrospective data • Metastases
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    HER-2 (Human epidermal growth factor receptor 2)
    |
    HER-2 positive • HR positive • HER-2 negative • HER-2 expression • HR positive + HER-2 negative • HR positive + HER-2 underexpression • HER-2 elevation