palbociclib plus letrozoletitleletrozoletitlePALOMA-1, 2016 NCT00721409 la/mBC - HR-positive - 1st line (L1) 84/81PALOMA-2, 2016 NCT01740427 la/mBC - HR-positive - 1st line (L1) 444/222

Pathology:  la/mBC - HR-positive - 1st line (L1); 

la/mBC - HR-positive - 1st line (L1)
PALOMA-1, 2016PALOMA-2, 2016
palbociclib plus letrozole2T1T1
letrozole0T0T0