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Deprecated: Implicit conversion from float 269.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Cancer+Res 2014 ; 74 (18): 5206-17 Nephropedia Template TP
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FLT3 kinase inhibitor TTT-3002 overcomes both activating and drug resistance mutations in FLT3 in acute myeloid leukemia #MMPMID25060518
Ma HS; Nguyen B; Duffield AS; Li L; Galanis A; Williams AB; Brown PA; Levis MJ; Leahy DJ; Small D
Cancer Res 2014[Sep]; 74 (18): 5206-17 PMID25060518show ga
There have been a number of clinical trials testing the efficacy of FLT3 tyrosine kinase inhibitors (TKIs) in acute myeloid leukemia (AML). patients harboring a constitutively activating mutation in FLT3 However, there has been limited efficacy, most often due to inadequate achievement of FLT3 inhibition through a variety of mechanisms In a previous study, TTT-3002 was identified as a novel FLT3 inhibitor with the most potent activity to date against FLT3 internal tandem duplication (FLT3/ITD) mutations Here the activity of TTT-3002 is demonstrated against a broad spectrum of FLT3 activating point mutations (FLT3/PMs), including the most frequently occurring D835 mutations The compound is also active against a number of point mutations selected for in FLT3/ITD alleles that confer resistance to other TKIs, including the F691L gatekeeper mutation TTT-3002 maintains activity against relapsed AML patient samples that are resistant to sorafenib and AC220 Studies utilizing human plasma samples from healthy donors and AML patients indicate that TTT-3002 is only moderately protein bound compared to several other TKIs currently in clinical trials Tumor burden of mice in a FLT3 TKI-resistant transplant model is significantly improved by oral dosing of TTT-3002 Therefore, TTT-3002 has demonstrated preclinical potential as a promising new FLT3 TKI that may overcome some of the limitations of other TKIs in the treatment of FLT3-mutant AML