Published finding — does the expert body still believe it?
The MONALEESA-2 trial's stated primary conclusion — Adding ribociclib to letrozole improves progression-free survival in HR+/HER2− advanced breast cancer. — replicates in independent cohorts.
TL;DR · AI-generated
Among patients receiving initial systemic treatment for HR-positive, HER2-negative advanced breast cancer, the duration of progression-free survival was significantly longer among those receiving ribociclib plus letrozole than among those received placebo plus let rozole, with a higher rate of myelosuppression in the ribocIClib group.
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Evidence stream
2 events · 1 snapshot
posterior drift
71% → 71% (0pp · 1 point)
Registry data
Apr 18, 2026
Peer-reviewed paper
Apr 18, 2026
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Source publication
Ribociclib as First-Line Therapy for HR-Positive, Advanced Breast Cancer
Gabriel N. Hortobagyi et al. · New England Journal of Medicine · 2016
· openalex W2528767298 · s2 6bffab4c
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