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

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
lapatinib plus trastuzumab vs. lapatinib 1 0.74 [0.57; 0.96], 1 RCT, I2=0%
unassessable degree of certainty
0.74 [0.58; 0.94], 1 RCT, I2=0%
unassessable degree of certainty
-
versus trastuzumab plus capecitabine
lapatinib plus capecitabine vs. trastuzumab plus capecitabine 1 0.58 [0.26; 1.30], 1 RCT, I2=0%
inconclusive result
0.81 [0.55; 1.20], 1 RCT, I2=0%
inconclusive result
-