deaths (OS)

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

versus trastuzumab
pertuzumab plus trastuzumab vs. trastuzumab 1 -
versus trastuzumab plus chemotherapy
trastuzumab plus endocrine therapy vs. trastuzumab plus chemotherapy 1 0.82 [0.65; 1.04], 1 RCT, I2=0%
inconclusive result
versus trastuzumab plus docetaxel
pertuzumab plus trastuzumab plus docetaxel vs. trastuzumab plus docetaxel 2 0.66 [0.52; 0.84], 1 RCT, I2=0% conclusive
unassessable degree of certainty

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
neratinib plus capecitabine vs. lapatinib plus capecitabine 2 0.88 [0.74; 1.06], 2 RCTs, I2=0%
inconclusive result
versus placebo
neratinib vs. placebo 1 -
versus trastuzumab plus capecitabine
tucatinib plus trastuzumab plus capecitabine vs. trastuzumab plus capecitabine 2 0.66 [0.50; 0.88], 1 RCT, I2=0% conclusive
unassessable degree of certainty