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Pre-clinical Evaluation of Tyrosine Kinase Inhibitors for Treatment of Acute Leukemia
Published on: September 18, 2013
Discovery of IRAK1/4/pan-FLT3 Kinase Inhibitors as Treatments for Acute Myeloid Leukemia
Scott B Hoyt1, Chris J Finocchio1, Elizabeth Croll1
1National Center for Advancing Translational Sciences, Rockville, Maryland 20850, United States.
We report the discovery of an imidazopyridine series of IRAK1/4/pan-FLT3 kinase inhibitors. Optimization of this series has produced compound 31 which displays potent and selective inhibition of IRAK1, IRAK4, FLT3, and all mutant forms of FLT3, as well as good in vitro ADME and pharmacokinetic properties. In a mouse xenograft model of AML, 31 produces survival prolongation equal to that of Gilteritinib, the leading marketed FLT3 inhibitor currently used to treat AML.
We report the discovery of an imidazopyridine series of IRAK1/4/pan-FLT3 kinase inhibitors. Optimization of this series has produced compound 31 which displays potent and selective inhibition of IRAK1, IRAK4, FLT3, and all mutant forms of FLT3, as well as good in vitro ADME and pharmacokinetic properties. In a mouse xenograft model of AML, 31 produces survival prolongation equal to that of Gilteritinib, the leading marketed FLT3 inhibitor currently used to treat AML.
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