Progression-free survival on endocrine therapy, before or after chemotherapy, in hormone receptor-positive HER2-negative metastatic breast cancer.
Pauline CorbauxAudrey Lardy-CleaudMarie AlexandreMaxime FontanillesChristelle LévyAlessandro Adriano ViansoneAudrey MailliezMarc DebledAnthony GoncalvesFanny Le DuFlorence LereboursJean-Marc FerreroJean-Christophe EymardMarie-Ange Mouret-ReynierThierry PetitJean-Sébastien FrenelFlorence DalencCoralie CourtinardMarie ChaixThomas BachelotPublished in: Breast cancer research and treatment (2021)
PFS under first ET appears identical whether prescribed before or after chemotherapy. These data suggest chemotherapy does not promote endocrine resistance.