T8544

Masitinib mesylate (AB-1010 mesylate) is a selective, orally bioavailable c-Kit inhibitor with an IC50 of 200 nM for human recombinant c-Kit, and IC50 values of 540/800 nM and 510 nM for PDGFRα/β and LynB, respectively.

Masitinib (AB1010) is a tyrosine-kinase inhibitor used in the treatment of mast cell tumors in animals, specifically dogs. Since its introduction in November 2008 it has been distributed under the commercial name Masivet. It has been available in Europe since the second part of 2009. In the USA it is distributed under the name Kinavet and has been available for veterinaries since 2011.