CBR

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

versus placebo
metformin vs. placebo 1 1.89 [0.53; 6.69], 1 RCT, I2=0%
inconclusive result

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