Ponatinib

**Semantic type:** Organic Chemical|Pharmacologic Substance

**Definition:** An orally bioavailable multitargeted receptor tyrosine kinase (RTK) inhibitor with potential antiangiogenic and antineoplastic activities. Ponatinib inhibits unmutated and all mutated forms of Bcr-Abl, including T315I, the highly drug therapy-resistant missense mutation of Bcr-Abl. This agent also inhibits other tyrosine kinases including those associated with vascular endothelial growth factor receptors (VEGFRs) and fibroblast growth factor receptors (FGFRs); in addition, it inhibits the tyrosine kinase receptor TIE2 and FMS-related tyrosine kinase receptor-3 (Flt3). RTK inhibition by ponatinib may result in the inhibition of cellular proliferation and angiogenesis and may induce cell death. Bcr-Abl is a fusion tyrosine kinase encoded by the Philadelphia chromosome.

**Synonyms:** - AP 24534 - AP-24534 - AP24534 - Benzamide, 3-(2-Imidazo(1,2-B)Pyridazin-3-Ylethynyl)-4-Methyl-N-(4-((4-Methyl-1- Piperazinyl)Methyl)-3-(Trifluoromethyl)Phenyl) - PONATINIB