CFI-402257 hydrochloride is a highly selective and orally bioavailable TTK/Mps1 inhibitor with an IC50 of 1.7 nM for TTK in vitro. CFI-402257 hydrochloride has anti-cancer activity[1].
in vivo
CFI-402257 given orally QD shows dose-dependent activity in mice with established tumors from xenografted MDA-MB-231 human TNBC cells and MDA-MB-468 human TNBC cells in mice. CFI-402257 demonstrates antitumor activity in a platinum-resistant PDX model of high-grade serous ovarian cancer[2].
Animal Model:
Xenografted MDA-MB-231 human TNBC cells and MDA-MB-468 human TNBC cells in mice[2].
[1] Liu Y, et al. Discovery of Pyrazolo[1,5-a]pyrimidine TTK Inhibitors: CFI-402257 is a Potent, Selective, Bioavailable Anticancer Agent. ACS Med Chem Lett. 2016 May 6;7(7):671-5. DOI:10.1021/acsmedchemlett.5b00485 [2] Mason JM, et al. Functional characterization of CFI-402257, a potent and selective Mps1/TTK kinase inhibitor, for the treatment of cancer. Proc Natl Acad Sci U S A. 2017 Mar 21;114(12):3127-3132. DOI:10.1073/pnas.1700234114
