Mechanism Of Action:
Palbociclib is a CDK4/6 inhibitor that acts by binding to the ATP pocket. The CDK4/6 kinase is involved in the G1-S transition, so, inhibition of this step prevents cell cycle in cells in whose this pathway is functioning.
Indication:
It is indicated for hormone receptor positive (HR+), human epidermal growth factor receptor 2-negative (HER2-) metastatic breast cancer (mBC), that has spread to other parts of the body; can be used in men and women.
HR+, HER2- is the most common subtype (approximately 60% of all cases) of metastatic breast cancer(mBC).