NCI Drug Dictionary
The NCI Drug Dictionary contains technical definitions and synonyms for drugs/agents used to treat patients with cancer or conditions related to cancer. Each drug entry includes links to check for clinical trials listed in NCI's List of Cancer Clinical Trials.
An orally available cyclin-dependent kinase (CDK) inhibitor that targets the CDK4 (cyclin D1) and CDK6 (cyclin D3) cell cycle pathway, with potential antineoplastic activity. Abemaciclib specifically inhibits CDK4 and 6, thereby inhibiting retinoblastoma (Rb) protein phosphorylation in early G1. Inhibition of Rb phosphorylation prevents CDK-mediated G1-S phase transition, thereby arresting the cell cycle in the G1 phase, suppressing DNA synthesis and inhibiting cancer cell growth. Overexpression of the serine/threonine kinases CDK4/6, as seen in certain types of cancer, causes cell cycle deregulation. Check for active clinical trials or closed clinical trials using this agent.
Synonym: CDK4/6 dual inhibitor LY2835219 Code name: LY2835219 Chemical structure: 2-pyrimidinamine, N-(5-((4-ethyl-1-piperazinyl)methyl)-2-pyridinyl)-5-fluoro-4-(4-fluoro-2-methyl-1-(1-methylethyl)-1H-benzimidazol-6-yl)