Study study type PathologyT1T0Patientssample sizesROB Results

es-BC - HR-positive - 1st line (L1) breast cancer - HR positive es-BC - HR-positive - 1st line (L1)

versus letrozole
taselisib plus letrozole
LORELEI, 2019
  NCT02273973
RCTes-BC - HR-positive - 1st line (L1)taselisib plus letrozoleplacebo plus letrozolePostmenopausal women (aged >= 18yr), with operable stage I-III invasive BC HR-positive (ER positive) and HER2-negative166 / 168low
suggested
  • suggested 55 % increase in objective responses (ORR) (PE)
  • inconclusive 2.1-fold increase in pCR (PE)