A Randomized, Multicenter, Doube-blind Phase III Study of PD 0332991 (Oral CDK 4/6 Inhibitor) Plus Letrozole Versus Placebo Plus Letrozole For The Treatment Of Postmenopausal Women With ER(+), HER2 (-) Breast Cancer Who Have Not Received Any Prior Systemic Anti-Cancer Treatment For Advanced Disease
Hormon,Zielgerichtet - Therapieart: palliativ