ArticleBreast care (Basel, Switzerland)2020
Adjuvant Chemotherapy for Patients with Breast Cancer Based on Clinical and Evolving Oncotype DX Criteria.
Article in Breast care (Basel, Switzerland), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed, 2 citations in OpenAlex.
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5 authors at 4 institutions in 2 countries.
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Abstract
introductionOncotype DX assay recurrence score (ODX-RS) cut-off values have recently changed after the publication of the TAILOR-X trial results. We aim to explore decisions for adjuvant chemotherapy (ACT) based on physicians' clinical assessment and the evolving ODX-RS. METHODOLOGY: Patients who underwent ODX testing after curative surgical resection of estrogen receptor positive (ER+), Her2 non-overexpressed (Her2-) and lymph node-negative (LN-) breast cancer (BC) were eligible. Management of these patients was guided by the results of the old ODX-RS-1 (<18, 18-30, and ≥31) risk grouping. For the purpose of this study, treatment decisions were also assumed according to TAILOR-X results (ODX-RS-2). Decisions of 3 medical oncologists on ACT were solicited by blinding them to the RS to investigate concordance with ODXA RS-1 and 2 recommendations.
resultsSixty-six consecutive patients were included. Median age was 50.5 (range: 21-73) years. There was 1 male patient, and 37/65 females (56.9%) were premenopausal. Among the 3 oncologists, recommendations for ACT based on clinical assessment were discrepant in 29 (43.9%) patients. Based on majority consensus (≥2 oncologists), ACT would have been recommended to 22/41 (53.7%) and 22/46 (47.82%) patients with low-risk tumors according to ODX-RS-1 and ODX-RS-2, respectively. Compared to ODX-RS-1, ODX-RS-2 identifies 12% (46 vs. 41) more low-risk patients and 66% (20 vs. 12 patients) more high-risk patients.
conclusionOvertreatment and discrepancies in the management of patients with ER+/Her2-/LN- early BC can be minimized by the implementation of ODX genomic assay. Some differences in ACT recommendations exist between ODX-RS-1 and ODX-RS-2.
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