Cyclin-dependent kinase 4 and 6 (CDK4/6) inhibitors

Last revised by Yuranga Weerakkody on 8 Mar 2021

Cyclin-dependent kinase 4 and 6 (CDK4/6) inhibitors which often go under the name palbociclib, ribociclib, and abemaciclib are used in patients with hormone receptor (HR)-positive, human epidermal growth factor receptor 2 (HER2)-negative (HR+/HER2−) advanced breast cancer

Biology

CDK 4 and CDK 6 are downstream agents in the estrogen signaling pathway which control entry into the cell cycle. This inhibition is thought to prevent tumor cell progression in the cell cycle.

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