Quizartinib (formerly also know as AC-220; AC-010220, Vanflyta) is a novel, potent, 2nd-generation, and orally bioavailable FLT3 tyrosine kinase inhibitor for Flt3 (ITD/WT) with potential anticancer activity.With IC50s of 1.1 nM and 4.2 nM, respectively, it inhibits FLT3 in MV4-11 and RS4EL11 cells. With respect to KIT, PDGFRα, PDGFRβ, RET, and CSF-1R, it demonstrates a ten-fold greater selectivity. Currently, Daiichi Sankyo is developing quizartinib to treat acute myeloid leukemia. Quizartinib (Vanflyta) was approved in 2023 by FDA for treating AML.