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

la/mBC - HR-positive - 2nd line (L2) breast cancer - HR positive la/mBC - HR positive la/mBC - HR-positive - 2nd line (L2)

versus fulvestrant
palbociclib plus fulvestrant vs. fulvestrant 2 0.81 [0.64; 1.03], 1 RCT, I2=0%
inconclusive result
0.46 [0.36; 0.59], 2 RCTs, I2=10% conclusive
high degree of certainty
-

la/mBC - HR positive - L2 - all population breast cancer - HR positive la/mBC - HR positive la/mBC - HR-positive - 2nd line (L2) la/mBC - HR positive - L2 - all population

la/mBC - HR positive - L2 - PIK3CA mutant breast cancer - HR positive la/mBC - HR positive la/mBC - HR-positive - 2nd line (L2) la/mBC - HR positive - L2 - PIK3CA mutant