Journal Article
. 2019 Jun; 37(22):1956-1964.
doi: 10.1200/JCO.19.00945.

Use of Biomarkers to Guide Decisions on Adjuvant Systemic Therapy for Women With Early-Stage Invasive Breast Cancer: ASCO Clinical Practice Guideline Update-Integration of Results From TAILORx

Fabrice Andre 1 Nofisat Ismaila 2 N Lynn Henry 3 Mark R Somerfield 2 Robert C Bast 4 William Barlow 5 Deborah E Collyar 6 M Elizabeth Hammond 7 Nicole M Kuderer 8 Minetta C Liu 9 Catherine Van Poznak 10 Antonio C Wolff 11 Vered Stearns 11 
Affiliations
  • PMID: 31150316
  •     39 citations

Abstract

Purpose: This focused update addresses the use of Oncotype DX in guiding decisions on the use of adjuvant systemic therapy.

Methods: ASCO uses a signals approach to facilitate guideline updating. For this focused update, the publication of the Trial Assigning Individualized Options for Treatment (TAILORx) evaluating noninferiority of endocrine therapy alone versus chemoendocrine therapy for invasive disease-free survival in women with Oncotype DX scores provided a signal. An expert panel reviewed the results of TAILORx along with other published literature on the Oncotype DX assay to assess for evidence of clinical utility.

Updated Recommendations: For patients with hormone receptor-positive, axillary node-negative breast cancer whose tumors have Oncotype DX recurrence scores of less than 26, there is little to no benefit from chemotherapy, especially for patients older than age 50 years. Clinicians may recommend endocrine therapy alone for women older than age 50 years. For patients 50 years of age or younger with recurrence scores of 16 to 25, clinicians may offer chemoendocrine therapy. Patients with recurrence scores greater than 30 should be considered candidates for chemoendocrine therapy. Based on informal consensus, the panel recommends that oncologists may offer chemoendocrine therapy to these patients with recurrence scores of 26 to 30. Additional information can be found at www.asco.org/breast-cancer-guidelines.

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