palbociclib plus endocrine therapy (n=628) vs. endocrine therapy (n=616)
randomized controlled trial
palbociclib plus endocrine therapy according to local standars (physician's choice)
palbociclib: PO 125mg/day for 21 days
placebo plus endocrine therapy according to local standars (physician's choice)
breast cancer - adjuvant
double blind
221 sites and 11 countries (Australia, Asia, Europe, USA
P3 / IDFS at 5% with 2 IA for efficacy -> 1st <0.0002, 2nd <0.0120 and final analysis <0.0463 / adjustment for multiple testing in other tests was not planned
Palbociclid did not improve IDFS compare to placebo for patients with HR-positive / HER2-negative breast cancer