Statistically conclusive or suggested result Inconclusive results Uncertain results Safety results

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

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 noneinconclusive results for: deaths (OS)

statistically conclusive 50 % decrease in iDFS but the degree if certainty is unassessable

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versus trastuzumab plus endocrine therapy
trastuzumab emtansine vs. trastuzumab plus endocrine therapy 1 none-

suggested 3.9-fold increase in pCR but the degree if certainty is unassessable

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trastuzumab emtasine plus endocrine therapy vs. trastuzumab plus endocrine therapy 1 none-

suggested 4.0-fold increase in pCR but the degree if certainty is unassessable

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la/mBC - HER2 positive - 1st Line (L1) breast cancer - HER2-positive la/mBC - HER2 positive la/mBC - HER2 positive - 1st Line (L1)

la/mBC - HER2 positive - 2nd Line (L2) breast cancer - HER2-positive la/mBC - HER2 positive la/mBC - HER2 positive - 2nd Line (L2)

versus lapatinib plus capecitabine
trastuzumab emtansine vs. lapatinib plus capecitabine 1 noneinconclusive results for: DOR

statistically conclusive 32 % decrease in deaths (OS) but the degree if certainty is unassessable

suggested 25 % decrease in deaths (OS) (extension) but the degree if certainty is unassessable

statistically conclusive 35 % decrease in progression or deaths (PFS) but the degree if certainty is unassessable

statistically conclusive 73 % increase in objective responses (ORR) but the degree if certainty is unassessable

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versus trastuzumab emtansine
trastuzumab deruxtecan vs. trastuzumab emtansine 1 none-

suggested 45 % decrease in deaths (OS) but the degree if certainty is unassessable

suggested 72 % decrease in progression or deaths (PFS) but the degree if certainty is unassessable

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