deaths (OS)progression or deaths (PFS)RFS/DFS

es-BC - HER2 positive - (neo)adjuvant (NA) breast cancer - HER2-positive es-BC - HER2 positive - (neo)adjuvant (NA)

versus trastuzumab
trastuzumab emtansine vs. trastuzumab 1 certainty unassessable-28%--
versus trastuzumab plus endocrine therapy
trastuzumab emtansine vs. trastuzumab plus endocrine therapy 1 ---
trastuzumab emtasine plus endocrine therapy vs. trastuzumab plus endocrine therapy 1 ---