ArticleResearch square2026
Baseline gene expression and dynamic endocrine therapy use in ER+ breast cancer: associations with recurrence in a real-world cohort.
Article in Research square, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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11 authors.
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Abstract
Endocrine therapy (ET) selection in estrogen receptor-positive breast cancer (ER + BC) is guided by menopausal status and tolerability rather than tumor biology, despite substantial heterogeneity in recurrence. We hypothesized that baseline gene expression differentially associates with recurrence depending on initial ET class. In a retrospective cohort of 74 ER+/HER2- patients treated with adjuvant ET, we profiled baseline tumor RNA and fitted adjusted Cox models for gene and ET interactions on time-to-recurrence and time-to-switch. Among selective estrogen receptor modulators-initiated patients, higher expression of
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