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In ADAPTcycle, post-endocrine central Ki67 (Ki67post) ≤10% was defined as endocrine therapy response (ETR) to guide therapy decisions in HR+ HER2- EBC. Here, concordance between local and central Ki67 measurements was evaluated to assess the robustness of this factor for routine clinical application.
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Hamann et al. (2024) studied this question.
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