Info

TAILORx

Adjuvant Chemotherapy in Women with Midrange Recurrence Score of 21-Gene Breast Cancer Assay

  1. Design:
    • Prospective trial
    • Multi-center
    • Randomized
  2. Number of patients: 10,273 women with hormone-receptor-positive, HER2-negative, axillary node-negative breast cancer
  3. Patients characteristics:
    • Hormone-receptor-positive, HER2-negative, axillary node-negative breast cancer
    • Midrange recurrence score of 11 to 25
  4. Agent:
    • Endocrine therapy alone
    • Chemoendocrine therapy
  5. Treatment line: Adjuvant therapy
  6. Trial Name: TAILORx
OutcomeEndocrine therapy aloneChemoendocrine therapy
Invasive DFSNoninferiorNoninferior
HR1.08 (95% CI, 0.94 to 1.24)-
p-value0.26-
OSSimilarSimilar
Chemotherapy benefit DFS50 < and score 16 to 25-
  1. Other findings in this trial:
    • Endocrine therapy and chemoendocrine therapy had similar efficacy in women with midrange 21-gene recurrence score.
    • Chemotherapy benefit varied with the combination of recurrence score and age.