JNJ-10198409 is a relatively selective, orally active, and ATP competitive PDGF-RTK (platelet-derived growth factor receptor tyrosine kinase) inhibitor (IC50=2 nM). It is a dual-mechanism, antiangiogenic, and tumor cell antiproliferative agent. JNJ-10198409 has good activity against PDGFR-β kinase (IC50=4.2 nM) and PDGFR-α kinase (IC50=45 nM)[1][2].
JNJ-10198409 has potent antiproliferative activity in six of eight human tumor cell lines (IC50<0.033 μM) and is a potent inhibitor of the c-Abl kinase (IC50=22 nM)[1][2].
[1]. D'Andrea MR, et al. Validation of in vivo pharmacodynamic activity of a novel PDGF receptor tyrosine kinase inhibitor using immunohistochemistry and quantitative image analysis. Mol Cancer Ther. 2005 Aug;4(8):1198-204. [2]. Ho CY, et al. (6,7-Dimethoxy-2,4-dihydroindeno[1,2-c]pyrazol-3-yl)phenylamines: platelet-derived growth factor receptor tyrosine kinase inhibitors with broad antiproliferative activity against tumor cells. J Med Chem. 2005 Dec 29;48(26):8163-73.