FLT3

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FLT3 Signaling Pathway Map

FLT3 Signaling Pathways

FLT3 Products

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Catalog No. Product Name Information Product Use Citations Product Validations
S0278 SU5614 SU5614 (Chloro-SU5416, Chloro-Semaxanib) is a small molecule receptor tyrosine kinases (RTK) inhibitor of VEGFR-2, c-kit, and both wild-type and mutant FLT3. SU5614 reduces cell proliferation and induces apoptosis.
Adv Sci (Weinh), 2021, e2101848
S1003 Linifanib (ABT-869) Linifanib (ABT-869, AL39324, RG3635) is a novel, potent ATP-competitive VEGFR/PDGFR inhibitor for KDR, CSF-1R, Flt-1/3 and PDGFRβ with IC50 of 4 nM, 3 nM, 3 nM/4 nM and 66 nM respectively, mostly effective in mutant kinase-dependent cancer cells (i.e. FLT3). Linifanib (ABT-869) induces autophagy and apoptosis. Phase 3.
Cancer Lett, 2021, 507:80-88
Hum Cell, 2021, 34(6):1911-1918
Hum Cell, 2021, 10.1007/s13577-021-00639-4
S1018 Dovitinib (TKI-258) Dovitinib (TKI258, CHIR258) is a multitargeted RTK inhibitor, mostly for class III (FLT3/c-Kit) with IC50 of 1 nM/2 nM, also potent to class IV (FGFR1/3) and class V (VEGFR1-4) RTKs with IC50 of 8-13 nM, less potent to InsR, EGFR, c-Met, EphA2, Tie2, IGF-1R and HER2 in cell-free assays. Phase 4.
Mol Cell, 2021, S1097-2765(21)00507-4
Acta Neuropathol, 2021, 10.1007/s00401-021-02327-x
Cancer Res, 2021, canres.1780.2020
S1040 Sorafenib (BAY 43-9006) tosylate Sorafenib (BAY 43-9006) tosylate is a multikinase inhibitor of Raf-1 and B-Raf with IC50 of 6 nM and 22 nM in cell-free assays, respectively. Sorafenib Tosylate inhibits VEGFR-2, VEGFR-3, PDGFR-β, Flt-3 and c-KIT with IC50 of 90 nM, 20 nM, 57 nM, 59 nM and 68 nM, respectively. Sorafenib Tosylate induces autophagy and apoptosis and activates ferroptosis with anti-tumor activity.
Cell Death Dis, 2022, 13(1):35
Cancer Cell, 2021, S1535-6108(21)00659-0
Leukemia, 2021, 10.1038/s41375-021-01308-z
S1043 Tandutinib (MLN518) Tandutinib (MLN518, CT53518, NSC726292) is a potent FLT3 antagonist with IC50 of 0.22 μM, also inhibits PDGFR and c-Kit, 15 to 20-fold higher potency for FLT3 versus CSF-1R and >100-fold selectivity for the same target versus FGFR, EGFR and KDR. Phase 2.
Cancer Cell, 2021, S1535-6108(21)00659-0
Drug Metab Dispos, 2021, 49(1):53-61
Genome Med, 2020, 18;12(1):17
S1048 Tozasertib (VX-680, MK-0457) Tozasertib (VX-680, MK-0457) is a pan-Aurora inhibitor, mostly against Aurora A with Kiapp of 0.6 nM in a cell-free assay, less potent towards Aurora B/Aurora C and 100-fold more selective for Aurora A than 55 other kinases. The only exceptions are Fms-related tyrosine kinase-3 (FLT-3) and BCR-ABL tyrosine kinase, which are inhibited by the Tozasertib with both Ki of 30 nM. Tozasertib induces apoptosis and autophagy. Phase 2.
Cancer Res, 2022, canres.1707.2021
Mol Oncol, 2022, 16(1):219-249
Science, 2021, 371(6535)eabc5386
S1099 SKLB4771 (FLT3-IN-1) SKLB4771 is a potent and selective inhibitor of human receptor-type tyrosine-protein kinase FLT3 with IC50 of 10 nM.
S1111 Foretinib (GSK1363089) Foretinib (GSK1363089, EXEL-2880, XL-880, GSK089) is an ATP-competitive inhibitor of HGFR and VEGFR, mostly for Met (c-Met) and KDR with IC50 of 0.4 nM and 0.9 nM in cell-free assays. Less potent against Ron, Flt-1/3/4, Kit (c-Kit), PDGFRα/β and Tie-2, and little activity to FGFR1 and EGFR. Phase 2.
Cancers (Basel), 2021, 13(3)E372
Cancers (Basel), 2021, 13(19)5012
Mol Carcinog, 2021, 60(7):481-496
S1181 ENMD-2076 ENMD-2076 has selective activity against Aurora A and Flt3 with IC50 of 14 nM and 1.86 nM, 25-fold selective for Aurora A than over Aurora B and less potent to RET, SRC, NTRK1/TRKA, CSF1R/FMS, VEGFR2/KDR, FGFR and PDGFRα. ENMD-2076 inhibits the growth of a wide range of human solid tumor and hematopoietic cancer cell lines with IC50 from 0.025 to 0.7 μM, which induces apoptosis and G2/M phase arrest. Phase 2.
Cell, 2021, 184(2):334-351.e20
Sci Adv, 2021, 7(4)eabd7851
J Pediatr Hematol Oncol, 2019, 41(6):e359-e370
S1244 Amuvatinib (MP-470) Amuvatinib (MP-470, HPK 56) is a potent and multi-targeted inhibitor of c-Kit, PDGFRα and Flt3 with IC50 of 10 nM, 40 nM and 81 nM, respectively. Amuvatinib suppresses c-MET and c-RET. Amuvatinib is also active as a DNA repair protein Rad51 inhibitor with antineoplastic activity. Phase 2.
mBio, 2021, 12(6):e0322821
Hum Cell, 2021, 34(6):1911-1918
Hum Cell, 2021, 10.1007/s13577-021-00579-z
S1460 SP600125 SP600125 (Nsc75890) is a broad-spectrum JNK inhibitor for JNK1, JNK2 and JNK3 with IC50 of 40 nM, 40 nM and 90 nM in cell-free assays, respectively; 10-fold greater selectivity against MKK4, 25-fold greater selectivity against MKK3, MKK6, PKB, and PKCα, and 100-fold selectivity against ERK2, p38, Chk1, EGFR etc. SP600125 is also a broad‐spectrum inhibitor of serine/threonine kinases including Aurora kinase AFLT3 and TRKA with of IC50 of 60 nM, 90 nM and 70 nM. SP600125 inhibits autophagy and activates apoptosis.
Cells, 2022, 11(1)134
Int J Biol Sci, 2022, 18(1):349-359
Biomed Pharmacother, 2022, 145:112437
S1526 Quizartinib (AC220) Quizartinib (AC220) is a second-generation FLT3 inhibitor for Flt3(ITD/WT) with IC50 of 1.1 nM/4.2 nM in MV4-11 and RS4;11 cells, respectively, 10-fold more selective for Flt3 than KIT, PDGFRα, PDGFRβ, RET, and CSF-1R. Quizartinib (AC220) induces apoptosis of tumor cells. Phase 3.
Oncol Lett, 2022, 23(2):51
Mol Cell, 2021, S1097-2765(21)00507-4
Clin Cancer Res, 2021, 10.1158/1078-0432.CCR-20-3458
S1533 R406 (free base) R406 (free base) is a potent Syk inhibitor with IC50 of 41 nM in a cell-free assay, strongly inhibits Syk but not Lyn, 5-fold less potent to Flt3. R406 (free base) triggers apoptosis. Phase 1.
Free Radic Biol Med, 2022, S0891-5849(22)00004-1
Nat Genet, 2021, 53(4):500-510
Sci Transl Med, 2021, 13(596)eabf8654
S2018 ENMD-2076 L-(+)-Tartaric acid ENMD-2076 L-(+)-Tartaric acid is the tartaric acid of ENMD-2076, selective activity against Aurora A and Flt3 with IC50 of 14 nM and 1.86 nM, 25-fold more selective for Aurora A than Aurora B and less potent to VEGFR2/KDR and VEGFR3, FGFR1 and FGFR2 and PDGFRα. Phase 2.
S2158 KW-2449 KW-2449 is a multiple-targeted inhibitor, mostly for Flt3 with IC50 of 6.6 nM, modestly potent to FGFR1, Bcr-Abl and Aurora A; little effect on PDGFRβ, IGF-1R, EGFR. Phase 1.
Front Pharmacol, 2021, 12:740529
Cell, 2020, 182(3):685-712.e19
Cell, 2020, 182(3):685-712.e19
S2194 R406 R406 is a potent Syk inhibitor with IC50 of 41 nM in cell-free assays, strongly inhibits Syk but not Lyn, 5-fold less potent to Flt3. R406 induces apoptosis. Phase 1.
Free Radic Biol Med, 2022, S0891-5849(22)00004-1
Cancer Cell, 2021, S1535-6108(21)00492-X
Sci Transl Med, 2021, 13(596)eabf8654
S2198 SGI-1776 free base SGI-1776 free base is a novel ATP competitive inhibitor of Pim1 with IC50 of 7 nM in a cell-free assay, 50- and 10-fold selective versus Pim2 and Pim3, also potent to Flt3 and haspin. SGI-1776 induces apoptosis and autophagy. Phase 1.
Cancer Res, 2021, canres.1023.2021
Commun Biol, 2021, 4(1):1221
Cell, 2020, 182(3):685-712.e19
S2692 TG101209 TG101209 is a selective JAK2 inhibitor with IC50 of 6 nM, less potent to Flt3 and RET (c-RET) with IC50 of 25 nM and 17 nM in cell-free assays, ~30-fold selective for JAK2 than JAK3, sensitive to JAK2V617F and MPLW515L/K mutations.
Sci Rep, 2022, 12(1):7
Cell Death Discov, 2021, 7(1):268
Cell Death Discov, 2021, 7(1):268
S2730 Crenolanib (CP-868596) Crenolanib (CP-868596, ARO 002) is a potent and selective inhibitor of PDGFRα/β with Kd of 2.1 nM/3.2 nM in CHO cells, also potently inhibits FLT3, sensitive to D842V mutation not V561D mutation, >100-fold more selective for PDGFR than c-Kit, VEGFR-2, TIE-2, FGFR-2, EGFR, erbB2, and Src. Crenolanib helps to induce mitophagy.
Clin Cancer Res, 2021, 10.1158/1078-0432.CCR-20-3458
Theranostics, 2021, 11(16):7671-7684
Cells, 2021, 10(4)804
S2736 Fedratinib (TG101348) Fedratinib (SAR302503, TG101348) is a selective inhibitor of JAK2 with IC50 of 3 nM in cell-free assays, 35- and 334-fold more selective for JAK2 versus JAK1 and JAK3. Fedratinib also inhibits FMS-like tyrosine kinase 3 (FLT3) and RET (c-RET) with IC50 of 15 nM and 48 nM, respectively. Fedratinib has potential antineoplastic activity. Fedratinib inhibits proliferation and induces apoptosis. Phase 2.
Sci Rep, 2022, 12(1):7
Cell, 2021, 184(2):334-351.e20
Mol Cell, 2021, S1097-2765(21)01068-6
S4001 Cabozantinib malate (XL184) Cabozantinib malate (XL184) is the malate of Cabozantinib, a potent VEGFR2 inhibitor with IC50 of 0.035 nM and also inhibits c-Met, Ret (c-Ret), Kit (c-Kit), Flt-1/3/4, Tie2, and AXL with IC50 of 1.3 nM, 4 nM, 4.6 nM, 12 nM/11.3 nM/6 nM, 14.3 nM and 7 nM in cell-free assays, respectively. Cabozantinib malate (XL184) induces apoptosis.
Cancer Cell, 2021, S1535-6108(21)00659-0
Clin Cancer Res, 2021, 27(9):2533-2548
Cancers (Basel), 2021, 13(14)3635
S6060New HPK1-IN-2 HPK1-IN-2 is a potent and orally active inhibitor of hematopoietic progenitor kinase-1 (HPK1, a serine/threonine Ste20-related protein kinase), Lck and Flt3 with IC50 of <0.05 μM, IC50 of <0.5 μM and IC50 of <0.05 μM, respectively. HPK1-IN-2 exhibits antitumor activity.
S6662 AST-487 (NVP-AST487) AST-487 (NVP-AST487), a N,N'-diphenyl urea,is an ATP competitive inhibitor of Flt3 with ki of 0.12 μM.Besides FLT3, AST487 also inhibits RET,KDR,c-KIT,and c-ABL kinase with IC50 values below 1 μM.
Nat Commun, 2020, 21;11(1):1924
S6839New MRX-2843 MRX-2843 (UNC2371) is an orally active dual inhibitor of tyrosine kinases MERTK and FLT3 with IC50 of 1.3 nM and 0.64 nM, respectively.
S7003 AZD2932 AZD2932 is a potent and mutil-targeted protein tyrosine kinase inhibitor with IC50 of 8 nM, 4 nM, 7 nM, and 9 nM for VEGFR-2, PDGFRβ, Flt-3, and c-Kit, respectively.
Cancer Res, 2020, canres.1992.2020
Molecules, 2020, 8;25(9) pii: E2220
Development, 2016, 143(23):4394-4404
S7014 Merestinib (LY2801653) Merestinib (LY2801653) is a type-II ATP competitive, slow-off inhibitor of Met (c-Met) tyrosine kinase with a dissociation constant (Ki) of 2 nM, a pharmacodynamic residence time (Koff) of 0.00132 min(-1) and t1/2 of 525 min. Merestinib (LY2801653) also inhibits MST1R, AXL, ROS1, MKNK1/2, FLT3, MERTK, DDR1 and DDR2 with IC50 of 11 nM, 2 nM, 23 nM, 7 nM, 7 nM, 10 nM, 0.1 nM and 7 nM, respectively.
J Clin Invest, 2021, 131(11)146987
Mol Cancer Ther, 2021, molcanther.0344.2021
Front Oncol, 2020, 12;10:700
S7083 Ceritinib (LDK378) Ceritinib (LDK378) is potent inhibitor against ALK with IC50 of 0.2 nM in cell-free assays. Ceritinib (LDK378) also inhibits IGF-1R, InsR, STK22D and FLT3 with IC50 of 8 nM, 7 nM, 23 nM and 60 nM, respectively. Phase 3.
Nature, 2021, 600(7888):319-323
Cell, 2021, 184(10):2649-2664.e18
Clin Cancer Res, 2021, 27(9):2533-2548
S7119 Go6976 Go6976 (PD406976) is a potent PKC inhibitor with IC50 of 7.9 nM, 2.3 nM, and 6.2 nM for PKC (Rat brain), PKCα, and PKCβ1, respectively. Also a potent inhibitor of JAK2 and Flt3.
Cell Chem Biol, 2021, S2451-9456(21)00303-2
Biochimie, 2021, 184:8-17
J Cell Physiol, 2020, 10.1002/jcp.30207
S7397 Sorafenib (BAY 43-9006) Sorafenib (BAY 43-9006, NSC-724772) is a multikinase inhibitor of Raf-1 and B-Raf with IC50 of 6 nM and 22 nM in cell-free assays, respectively. Sorafenib inhibits VEGFR-2, VEGFR-3, PDGFR-β, Flt-3 and c-KIT with IC50 of 90 nM, 20 nM, 57 nM, 59 nM and 68 nM, respectively. Sorafenib induces autophagy and apoptosis and activates ferroptosis with anti-tumor activity.
Cell Death Dis, 2022, 13(1):35
Genome Biol, 2021, 22(1):41
Nat Chem Biol, 2021, 10.1038/s41589-021-00751-4
S7533 AMG 925 AMG 925 is a potent and orally bioavailable dual FLT3/CDK4 inhibitor with IC50 of 1 nM and 3 nM, respectively.
Molecules, 2020, 8;25(9) pii: E2220
S7545 G-749 G-749 is a novel and potent FLT3 inhibitor with IC50 of 0.4 nM, 0.6 nM and 1 nM for FLT3 (WT), FLT3 (D835Y), and Mer, respectively, showing lower potency against other tyrosine kinases.
Front Pharmacol, 2021, 12:730241
S7576 UNC2025 HCl UNC2025 HCl is a potent and orally bioavailable dual MER/FLT3 inhibitor with IC50 of 0.74 nM and 0.8 nM, respectively, about 20-fold selectivity over Axl and Tyro3.
Cancers (Basel), 2021, 13(23)6072
Front Immunol, 2020, 11:564133
Nat Commun, 2020, 11(1):3521
S7754 Gilteritinib (ASP2215) Gilteritinib (ASP2215) is a small-molecule FLT3/AXL inhibitor with IC50 values of 0.29 nM and 0.73 nM for FLT3 and AXL, respectively. It inhibits FLT3 at an IC50 value that was approximately 800-fold more potent than the concentration required to inhibit c-KIT (230 nM).
Oncol Lett, 2022, 23(2):51
Clin Cancer Res, 2021, 10.1158/1078-0432.CCR-20-3458
Leukemia, 2021, 10.1038/s41375-021-01462-4
S7765 Dovitinib (TKI258) Lactate Dovitinib (TKI258, CHIR258) Lactate is the Lactate of Dovitinib, which is a multitargeted RTK inhibitor, mostly for class III (FLT3/c-Kit) with IC50 of 1 nM/2 nM, also potent to class IV (FGFR1/3) and class V (VEGFR1-4) RTKs with IC50 of 8-13 nM, less potent to InsR, EGFR, c-Met, EphA2, Tie2, IGFR1 and HER2. Phase 4.
Mol Cell, 2021, S1097-2765(21)00507-4
Acta Neuropathol, 2021, 10.1007/s00401-021-02327-x
Cancer Res, 2021, canres.1780.2020
S7818 Pexidartinib (PLX3397) Pexidartinib (PLX3397) is an oral, potent mutil-targeted receptor tyrosine kinase inhibitor of CSF-1R, Kit (c-Kit), and FLT3 with IC50 of 20 nM, 10 nM and 160 nM, respectively. Pexidartinib (PLX3397) induces apoptosis and necrosis with antitumor activity. Phase 3.
Cell Death Dis, 2022, 13(1):33
Sci Transl Med, 2021, 13(598)eabd4550
J Exp Med, 2021, 218(8)e20210542
S8023 TCS 359 TCS 359 is a potent FLT3 inhibitor with IC50 of 42 nM.
Nat Commun, 2021, 12(1):2148
Blood, 2016, 127(23):2890-90
S8032 PRT062607 (P505-15) HCl PRT062607 (P505-15, BIIB057, PRT-2607) HCl is a novel, highly selective Syk inhibitor with IC50 of 1 nM in cell-free assays, >80-fold selective for Syk than Fgr, PAK5, Lyn, FAK, Pyk2, FLT3, MLK1 and Zap70.
Mol Cell, 2021, S1097-2765(21)00264-1
Sci Signal, 2021, 14(682)eabc1648
Biochem Pharmacol, 2021, S0006-2952(21)00185-4
S8057 Pacritinib (SB1518) Pacritinib (SB1518) is a potent and selective inhibitor of Janus Kinase 2 (JAK2) and Fms-Like Tyrosine Kinase-3 (FLT3) with IC50s of 23 and 22 nM in cell-free assays, respectively. Phase 3.
Sci Rep, 2022, 12(1):7
Cancer Res, 2021, canres.2125.2020
Cancer Sci, 2021, 112(11):4711-4721
S8229 Brigatinib (AP26113) Brigatinib (AP26113) is a potent and selective ALK (IC50, 0.6 nM) and ROS1 (IC50, 0.9 nM) inhibitor. It also inhibits IGF-1R, FLT3, and mutant variants of FLT3 (D835Y) and EGFR with lower potentcy.
Nature, 2021, 600(7888):319-323
EMBO J, 2021, e105784
Cancer Lett, 2021, 522:119-128
S8442 TAK-659 TAK-659 is a potent and selective inhibitor of spleen tyrosine kinase (SYK) with an IC50 value of 3.2 nM. It is selective against most other kinases, but potent toward both SYK and FLT3.
Am J Physiol Cell Physiol, 2021, 320(5):C902-C915
[email protected], 2020, 51
[email protected], 2020, None
S8899 FF-10101 FF-10101 is a novel irreversible FLT3 inhibitor with ic50 of 0.20 nM and 0.16 nM for FLT3 (WT) and FLT3(D835Y), respectively.
Front Oncol, 2021, 11:686765
S9275 Isoguanosine Isoguanosine (Crotonoside) inhibits FLT3 and HDAC3/6 for the treatment of AML.Isoguanosine is a naturally occurring active isomer of guanosine that is found in the seeds of Croton tiglium.
S9662 UNC2025 UNC2025 is a potent and orally active dual inhibitor of FLT3 and MER with IC50 of 0.35 nM and 0.46 nM, respectively. UNC2025 also inhibits AXL, TRKA, TRKC, QIK, TYRO3, SLK, NuaK1, Kit (c-Kit) and Met (c-Met) with IC50 of 1.65 nM, 1.67 nM, 4.38 nM, 5.75 nM, 5.83 nM, 6.14 nM, 7.97 nM, 8.18 nM and 364 nM, respectively.
Front Immunol, 2020, 11:564133
Cell Signal, 2014, 26(1):149-61
S9779New Emavusertib (CA-4948) Emavusertib (CA-4948) is a potent and orally bioavailable inhibitor of interleukin-1 receptor-associated kinase 4/FMS-like Tyrosine Kinase 3 (IRAK4/FLT3) with anti-tumor activity.
Arthritis Rheumatol, 2021, 10.1002/art.42043
S9892New HM43239

HM43239 is a novel potent small molecule FLT3 inhibitor that selectively inhibits not only FLT3 wild type, ITD mutants or TKD mutations, but also FLT3 ITD/TKD double mutations. IC50s' of HM43239 against FLT3 WT, FLT3 ITD and FLT3 D835Y kinases are 1.1 nM, 1.8 nM and 1.0 nM, respectively.

S0278 SU5614 SU5614 (Chloro-SU5416, Chloro-Semaxanib) is a small molecule receptor tyrosine kinases (RTK) inhibitor of VEGFR-2, c-kit, and both wild-type and mutant FLT3. SU5614 reduces cell proliferation and induces apoptosis.
Adv Sci (Weinh), 2021, e2101848
S1003 Linifanib (ABT-869) Linifanib (ABT-869, AL39324, RG3635) is a novel, potent ATP-competitive VEGFR/PDGFR inhibitor for KDR, CSF-1R, Flt-1/3 and PDGFRβ with IC50 of 4 nM, 3 nM, 3 nM/4 nM and 66 nM respectively, mostly effective in mutant kinase-dependent cancer cells (i.e. FLT3). Linifanib (ABT-869) induces autophagy and apoptosis. Phase 3.
Cancer Lett, 2021, 507:80-88
Hum Cell, 2021, 34(6):1911-1918
Hum Cell, 2021, 10.1007/s13577-021-00639-4
S1018 Dovitinib (TKI-258) Dovitinib (TKI258, CHIR258) is a multitargeted RTK inhibitor, mostly for class III (FLT3/c-Kit) with IC50 of 1 nM/2 nM, also potent to class IV (FGFR1/3) and class V (VEGFR1-4) RTKs with IC50 of 8-13 nM, less potent to InsR, EGFR, c-Met, EphA2, Tie2, IGF-1R and HER2 in cell-free assays. Phase 4.
Mol Cell, 2021, S1097-2765(21)00507-4
Acta Neuropathol, 2021, 10.1007/s00401-021-02327-x
Cancer Res, 2021, canres.1780.2020
S1040 Sorafenib (BAY 43-9006) tosylate Sorafenib (BAY 43-9006) tosylate is a multikinase inhibitor of Raf-1 and B-Raf with IC50 of 6 nM and 22 nM in cell-free assays, respectively. Sorafenib Tosylate inhibits VEGFR-2, VEGFR-3, PDGFR-β, Flt-3 and c-KIT with IC50 of 90 nM, 20 nM, 57 nM, 59 nM and 68 nM, respectively. Sorafenib Tosylate induces autophagy and apoptosis and activates ferroptosis with anti-tumor activity.
Cell Death Dis, 2022, 13(1):35
Cancer Cell, 2021, S1535-6108(21)00659-0
Leukemia, 2021, 10.1038/s41375-021-01308-z
S1043 Tandutinib (MLN518) Tandutinib (MLN518, CT53518, NSC726292) is a potent FLT3 antagonist with IC50 of 0.22 μM, also inhibits PDGFR and c-Kit, 15 to 20-fold higher potency for FLT3 versus CSF-1R and >100-fold selectivity for the same target versus FGFR, EGFR and KDR. Phase 2.
Cancer Cell, 2021, S1535-6108(21)00659-0
Drug Metab Dispos, 2021, 49(1):53-61
Genome Med, 2020, 18;12(1):17
S1048 Tozasertib (VX-680, MK-0457) Tozasertib (VX-680, MK-0457) is a pan-Aurora inhibitor, mostly against Aurora A with Kiapp of 0.6 nM in a cell-free assay, less potent towards Aurora B/Aurora C and 100-fold more selective for Aurora A than 55 other kinases. The only exceptions are Fms-related tyrosine kinase-3 (FLT-3) and BCR-ABL tyrosine kinase, which are inhibited by the Tozasertib with both Ki of 30 nM. Tozasertib induces apoptosis and autophagy. Phase 2.
Cancer Res, 2022, canres.1707.2021
Mol Oncol, 2022, 16(1):219-249
Science, 2021, 371(6535)eabc5386
S1099 SKLB4771 (FLT3-IN-1) SKLB4771 is a potent and selective inhibitor of human receptor-type tyrosine-protein kinase FLT3 with IC50 of 10 nM.
S1111 Foretinib (GSK1363089) Foretinib (GSK1363089, EXEL-2880, XL-880, GSK089) is an ATP-competitive inhibitor of HGFR and VEGFR, mostly for Met (c-Met) and KDR with IC50 of 0.4 nM and 0.9 nM in cell-free assays. Less potent against Ron, Flt-1/3/4, Kit (c-Kit), PDGFRα/β and Tie-2, and little activity to FGFR1 and EGFR. Phase 2.
Cancers (Basel), 2021, 13(3)E372
Cancers (Basel), 2021, 13(19)5012
Mol Carcinog, 2021, 60(7):481-496
S1181 ENMD-2076 ENMD-2076 has selective activity against Aurora A and Flt3 with IC50 of 14 nM and 1.86 nM, 25-fold selective for Aurora A than over Aurora B and less potent to RET, SRC, NTRK1/TRKA, CSF1R/FMS, VEGFR2/KDR, FGFR and PDGFRα. ENMD-2076 inhibits the growth of a wide range of human solid tumor and hematopoietic cancer cell lines with IC50 from 0.025 to 0.7 μM, which induces apoptosis and G2/M phase arrest. Phase 2.
Cell, 2021, 184(2):334-351.e20
Sci Adv, 2021, 7(4)eabd7851
J Pediatr Hematol Oncol, 2019, 41(6):e359-e370
S1244 Amuvatinib (MP-470) Amuvatinib (MP-470, HPK 56) is a potent and multi-targeted inhibitor of c-Kit, PDGFRα and Flt3 with IC50 of 10 nM, 40 nM and 81 nM, respectively. Amuvatinib suppresses c-MET and c-RET. Amuvatinib is also active as a DNA repair protein Rad51 inhibitor with antineoplastic activity. Phase 2.
mBio, 2021, 12(6):e0322821
Hum Cell, 2021, 34(6):1911-1918
Hum Cell, 2021, 10.1007/s13577-021-00579-z
S1460 SP600125 SP600125 (Nsc75890) is a broad-spectrum JNK inhibitor for JNK1, JNK2 and JNK3 with IC50 of 40 nM, 40 nM and 90 nM in cell-free assays, respectively; 10-fold greater selectivity against MKK4, 25-fold greater selectivity against MKK3, MKK6, PKB, and PKCα, and 100-fold selectivity against ERK2, p38, Chk1, EGFR etc. SP600125 is also a broad‐spectrum inhibitor of serine/threonine kinases including Aurora kinase AFLT3 and TRKA with of IC50 of 60 nM, 90 nM and 70 nM. SP600125 inhibits autophagy and activates apoptosis.
Cells, 2022, 11(1)134
Int J Biol Sci, 2022, 18(1):349-359
Biomed Pharmacother, 2022, 145:112437
S1526 Quizartinib (AC220) Quizartinib (AC220) is a second-generation FLT3 inhibitor for Flt3(ITD/WT) with IC50 of 1.1 nM/4.2 nM in MV4-11 and RS4;11 cells, respectively, 10-fold more selective for Flt3 than KIT, PDGFRα, PDGFRβ, RET, and CSF-1R. Quizartinib (AC220) induces apoptosis of tumor cells. Phase 3.
Oncol Lett, 2022, 23(2):51
Mol Cell, 2021, S1097-2765(21)00507-4
Clin Cancer Res, 2021, 10.1158/1078-0432.CCR-20-3458
S1533 R406 (free base) R406 (free base) is a potent Syk inhibitor with IC50 of 41 nM in a cell-free assay, strongly inhibits Syk but not Lyn, 5-fold less potent to Flt3. R406 (free base) triggers apoptosis. Phase 1.
Free Radic Biol Med, 2022, S0891-5849(22)00004-1
Nat Genet, 2021, 53(4):500-510
Sci Transl Med, 2021, 13(596)eabf8654
S2018 ENMD-2076 L-(+)-Tartaric acid ENMD-2076 L-(+)-Tartaric acid is the tartaric acid of ENMD-2076, selective activity against Aurora A and Flt3 with IC50 of 14 nM and 1.86 nM, 25-fold more selective for Aurora A than Aurora B and less potent to VEGFR2/KDR and VEGFR3, FGFR1 and FGFR2 and PDGFRα. Phase 2.
S2158 KW-2449 KW-2449 is a multiple-targeted inhibitor, mostly for Flt3 with IC50 of 6.6 nM, modestly potent to FGFR1, Bcr-Abl and Aurora A; little effect on PDGFRβ, IGF-1R, EGFR. Phase 1.
Front Pharmacol, 2021, 12:740529
Cell, 2020, 182(3):685-712.e19
Cell, 2020, 182(3):685-712.e19
S2194 R406 R406 is a potent Syk inhibitor with IC50 of 41 nM in cell-free assays, strongly inhibits Syk but not Lyn, 5-fold less potent to Flt3. R406 induces apoptosis. Phase 1.
Free Radic Biol Med, 2022, S0891-5849(22)00004-1
Cancer Cell, 2021, S1535-6108(21)00492-X
Sci Transl Med, 2021, 13(596)eabf8654
S2198 SGI-1776 free base SGI-1776 free base is a novel ATP competitive inhibitor of Pim1 with IC50 of 7 nM in a cell-free assay, 50- and 10-fold selective versus Pim2 and Pim3, also potent to Flt3 and haspin. SGI-1776 induces apoptosis and autophagy. Phase 1.
Cancer Res, 2021, canres.1023.2021
Commun Biol, 2021, 4(1):1221
Cell, 2020, 182(3):685-712.e19
S2692 TG101209 TG101209 is a selective JAK2 inhibitor with IC50 of 6 nM, less potent to Flt3 and RET (c-RET) with IC50 of 25 nM and 17 nM in cell-free assays, ~30-fold selective for JAK2 than JAK3, sensitive to JAK2V617F and MPLW515L/K mutations.
Sci Rep, 2022, 12(1):7
Cell Death Discov, 2021, 7(1):268
Cell Death Discov, 2021, 7(1):268
S2730 Crenolanib (CP-868596) Crenolanib (CP-868596, ARO 002) is a potent and selective inhibitor of PDGFRα/β with Kd of 2.1 nM/3.2 nM in CHO cells, also potently inhibits FLT3, sensitive to D842V mutation not V561D mutation, >100-fold more selective for PDGFR than c-Kit, VEGFR-2, TIE-2, FGFR-2, EGFR, erbB2, and Src. Crenolanib helps to induce mitophagy.
Clin Cancer Res, 2021, 10.1158/1078-0432.CCR-20-3458
Theranostics, 2021, 11(16):7671-7684
Cells, 2021, 10(4)804
S2736 Fedratinib (TG101348) Fedratinib (SAR302503, TG101348) is a selective inhibitor of JAK2 with IC50 of 3 nM in cell-free assays, 35- and 334-fold more selective for JAK2 versus JAK1 and JAK3. Fedratinib also inhibits FMS-like tyrosine kinase 3 (FLT3) and RET (c-RET) with IC50 of 15 nM and 48 nM, respectively. Fedratinib has potential antineoplastic activity. Fedratinib inhibits proliferation and induces apoptosis. Phase 2.
Sci Rep, 2022, 12(1):7
Cell, 2021, 184(2):334-351.e20
Mol Cell, 2021, S1097-2765(21)01068-6
S4001 Cabozantinib malate (XL184) Cabozantinib malate (XL184) is the malate of Cabozantinib, a potent VEGFR2 inhibitor with IC50 of 0.035 nM and also inhibits c-Met, Ret (c-Ret), Kit (c-Kit), Flt-1/3/4, Tie2, and AXL with IC50 of 1.3 nM, 4 nM, 4.6 nM, 12 nM/11.3 nM/6 nM, 14.3 nM and 7 nM in cell-free assays, respectively. Cabozantinib malate (XL184) induces apoptosis.
Cancer Cell, 2021, S1535-6108(21)00659-0
Clin Cancer Res, 2021, 27(9):2533-2548
Cancers (Basel), 2021, 13(14)3635
S6060New HPK1-IN-2 HPK1-IN-2 is a potent and orally active inhibitor of hematopoietic progenitor kinase-1 (HPK1, a serine/threonine Ste20-related protein kinase), Lck and Flt3 with IC50 of <0.05 μM, IC50 of <0.5 μM and IC50 of <0.05 μM, respectively. HPK1-IN-2 exhibits antitumor activity.
S6662 AST-487 (NVP-AST487) AST-487 (NVP-AST487), a N,N'-diphenyl urea,is an ATP competitive inhibitor of Flt3 with ki of 0.12 μM.Besides FLT3, AST487 also inhibits RET,KDR,c-KIT,and c-ABL kinase with IC50 values below 1 μM.
Nat Commun, 2020, 21;11(1):1924
S6839New MRX-2843 MRX-2843 (UNC2371) is an orally active dual inhibitor of tyrosine kinases MERTK and FLT3 with IC50 of 1.3 nM and 0.64 nM, respectively.
S7003 AZD2932 AZD2932 is a potent and mutil-targeted protein tyrosine kinase inhibitor with IC50 of 8 nM, 4 nM, 7 nM, and 9 nM for VEGFR-2, PDGFRβ, Flt-3, and c-Kit, respectively.
Cancer Res, 2020, canres.1992.2020
Molecules, 2020, 8;25(9) pii: E2220
Development, 2016, 143(23):4394-4404
S7014 Merestinib (LY2801653) Merestinib (LY2801653) is a type-II ATP competitive, slow-off inhibitor of Met (c-Met) tyrosine kinase with a dissociation constant (Ki) of 2 nM, a pharmacodynamic residence time (Koff) of 0.00132 min(-1) and t1/2 of 525 min. Merestinib (LY2801653) also inhibits MST1R, AXL, ROS1, MKNK1/2, FLT3, MERTK, DDR1 and DDR2 with IC50 of 11 nM, 2 nM, 23 nM, 7 nM, 7 nM, 10 nM, 0.1 nM and 7 nM, respectively.
J Clin Invest, 2021, 131(11)146987
Mol Cancer Ther, 2021, molcanther.0344.2021
Front Oncol, 2020, 12;10:700
S7083 Ceritinib (LDK378) Ceritinib (LDK378) is potent inhibitor against ALK with IC50 of 0.2 nM in cell-free assays. Ceritinib (LDK378) also inhibits IGF-1R, InsR, STK22D and FLT3 with IC50 of 8 nM, 7 nM, 23 nM and 60 nM, respectively. Phase 3.
Nature, 2021, 600(7888):319-323
Cell, 2021, 184(10):2649-2664.e18
Clin Cancer Res, 2021, 27(9):2533-2548
S7119 Go6976 Go6976 (PD406976) is a potent PKC inhibitor with IC50 of 7.9 nM, 2.3 nM, and 6.2 nM for PKC (Rat brain), PKCα, and PKCβ1, respectively. Also a potent inhibitor of JAK2 and Flt3.
Cell Chem Biol, 2021, S2451-9456(21)00303-2
Biochimie, 2021, 184:8-17
J Cell Physiol, 2020, 10.1002/jcp.30207
S7397 Sorafenib (BAY 43-9006) Sorafenib (BAY 43-9006, NSC-724772) is a multikinase inhibitor of Raf-1 and B-Raf with IC50 of 6 nM and 22 nM in cell-free assays, respectively. Sorafenib inhibits VEGFR-2, VEGFR-3, PDGFR-β, Flt-3 and c-KIT with IC50 of 90 nM, 20 nM, 57 nM, 59 nM and 68 nM, respectively. Sorafenib induces autophagy and apoptosis and activates ferroptosis with anti-tumor activity.
Cell Death Dis, 2022, 13(1):35
Genome Biol, 2021, 22(1):41
Nat Chem Biol, 2021, 10.1038/s41589-021-00751-4
S7533 AMG 925 AMG 925 is a potent and orally bioavailable dual FLT3/CDK4 inhibitor with IC50 of 1 nM and 3 nM, respectively.
Molecules, 2020, 8;25(9) pii: E2220
S7545 G-749 G-749 is a novel and potent FLT3 inhibitor with IC50 of 0.4 nM, 0.6 nM and 1 nM for FLT3 (WT), FLT3 (D835Y), and Mer, respectively, showing lower potency against other tyrosine kinases.
Front Pharmacol, 2021, 12:730241
S7576 UNC2025 HCl UNC2025 HCl is a potent and orally bioavailable dual MER/FLT3 inhibitor with IC50 of 0.74 nM and 0.8 nM, respectively, about 20-fold selectivity over Axl and Tyro3.
Cancers (Basel), 2021, 13(23)6072
Front Immunol, 2020, 11:564133
Nat Commun, 2020, 11(1):3521
S7754 Gilteritinib (ASP2215) Gilteritinib (ASP2215) is a small-molecule FLT3/AXL inhibitor with IC50 values of 0.29 nM and 0.73 nM for FLT3 and AXL, respectively. It inhibits FLT3 at an IC50 value that was approximately 800-fold more potent than the concentration required to inhibit c-KIT (230 nM).
Oncol Lett, 2022, 23(2):51
Clin Cancer Res, 2021, 10.1158/1078-0432.CCR-20-3458
Leukemia, 2021, 10.1038/s41375-021-01462-4
S7765 Dovitinib (TKI258) Lactate Dovitinib (TKI258, CHIR258) Lactate is the Lactate of Dovitinib, which is a multitargeted RTK inhibitor, mostly for class III (FLT3/c-Kit) with IC50 of 1 nM/2 nM, also potent to class IV (FGFR1/3) and class V (VEGFR1-4) RTKs with IC50 of 8-13 nM, less potent to InsR, EGFR, c-Met, EphA2, Tie2, IGFR1 and HER2. Phase 4.
Mol Cell, 2021, S1097-2765(21)00507-4
Acta Neuropathol, 2021, 10.1007/s00401-021-02327-x
Cancer Res, 2021, canres.1780.2020
S7818 Pexidartinib (PLX3397) Pexidartinib (PLX3397) is an oral, potent mutil-targeted receptor tyrosine kinase inhibitor of CSF-1R, Kit (c-Kit), and FLT3 with IC50 of 20 nM, 10 nM and 160 nM, respectively. Pexidartinib (PLX3397) induces apoptosis and necrosis with antitumor activity. Phase 3.
Cell Death Dis, 2022, 13(1):33
Sci Transl Med, 2021, 13(598)eabd4550
J Exp Med, 2021, 218(8)e20210542
S8023 TCS 359 TCS 359 is a potent FLT3 inhibitor with IC50 of 42 nM.
Nat Commun, 2021, 12(1):2148
Blood, 2016, 127(23):2890-90
S8032 PRT062607 (P505-15) HCl PRT062607 (P505-15, BIIB057, PRT-2607) HCl is a novel, highly selective Syk inhibitor with IC50 of 1 nM in cell-free assays, >80-fold selective for Syk than Fgr, PAK5, Lyn, FAK, Pyk2, FLT3, MLK1 and Zap70.
Mol Cell, 2021, S1097-2765(21)00264-1
Sci Signal, 2021, 14(682)eabc1648
Biochem Pharmacol, 2021, S0006-2952(21)00185-4
S8057 Pacritinib (SB1518) Pacritinib (SB1518) is a potent and selective inhibitor of Janus Kinase 2 (JAK2) and Fms-Like Tyrosine Kinase-3 (FLT3) with IC50s of 23 and 22 nM in cell-free assays, respectively. Phase 3.
Sci Rep, 2022, 12(1):7
Cancer Res, 2021, canres.2125.2020
Cancer Sci, 2021, 112(11):4711-4721
S8229 Brigatinib (AP26113) Brigatinib (AP26113) is a potent and selective ALK (IC50, 0.6 nM) and ROS1 (IC50, 0.9 nM) inhibitor. It also inhibits IGF-1R, FLT3, and mutant variants of FLT3 (D835Y) and EGFR with lower potentcy.
Nature, 2021, 600(7888):319-323
EMBO J, 2021, e105784
Cancer Lett, 2021, 522:119-128
S8442 TAK-659 TAK-659 is a potent and selective inhibitor of spleen tyrosine kinase (SYK) with an IC50 value of 3.2 nM. It is selective against most other kinases, but potent toward both SYK and FLT3.
Am J Physiol Cell Physiol, 2021, 320(5):C902-C915
[email protected], 2020, 51
[email protected], 2020, None
S8899 FF-10101 FF-10101 is a novel irreversible FLT3 inhibitor with ic50 of 0.20 nM and 0.16 nM for FLT3 (WT) and FLT3(D835Y), respectively.
Front Oncol, 2021, 11:686765
S9275 Isoguanosine Isoguanosine (Crotonoside) inhibits FLT3 and HDAC3/6 for the treatment of AML.Isoguanosine is a naturally occurring active isomer of guanosine that is found in the seeds of Croton tiglium.
S9662 UNC2025 UNC2025 is a potent and orally active dual inhibitor of FLT3 and MER with IC50 of 0.35 nM and 0.46 nM, respectively. UNC2025 also inhibits AXL, TRKA, TRKC, QIK, TYRO3, SLK, NuaK1, Kit (c-Kit) and Met (c-Met) with IC50 of 1.65 nM, 1.67 nM, 4.38 nM, 5.75 nM, 5.83 nM, 6.14 nM, 7.97 nM, 8.18 nM and 364 nM, respectively.
Front Immunol, 2020, 11:564133
Cell Signal, 2014, 26(1):149-61
S9779New Emavusertib (CA-4948) Emavusertib (CA-4948) is a potent and orally bioavailable inhibitor of interleukin-1 receptor-associated kinase 4/FMS-like Tyrosine Kinase 3 (IRAK4/FLT3) with anti-tumor activity.
Arthritis Rheumatol, 2021, 10.1002/art.42043
S9892New HM43239

HM43239 is a novel potent small molecule FLT3 inhibitor that selectively inhibits not only FLT3 wild type, ITD mutants or TKD mutations, but also FLT3 ITD/TKD double mutations. IC50s' of HM43239 against FLT3 WT, FLT3 ITD and FLT3 D835Y kinases are 1.1 nM, 1.8 nM and 1.0 nM, respectively.

S6060New HPK1-IN-2 HPK1-IN-2 is a potent and orally active inhibitor of hematopoietic progenitor kinase-1 (HPK1, a serine/threonine Ste20-related protein kinase), Lck and Flt3 with IC50 of <0.05 μM, IC50 of <0.5 μM and IC50 of <0.05 μM, respectively. HPK1-IN-2 exhibits antitumor activity.
S6839New MRX-2843 MRX-2843 (UNC2371) is an orally active dual inhibitor of tyrosine kinases MERTK and FLT3 with IC50 of 1.3 nM and 0.64 nM, respectively.
S9779New Emavusertib (CA-4948) Emavusertib (CA-4948) is a potent and orally bioavailable inhibitor of interleukin-1 receptor-associated kinase 4/FMS-like Tyrosine Kinase 3 (IRAK4/FLT3) with anti-tumor activity.
Arthritis Rheumatol, 2021, 10.1002/art.42043
S9892New HM43239

HM43239 is a novel potent small molecule FLT3 inhibitor that selectively inhibits not only FLT3 wild type, ITD mutants or TKD mutations, but also FLT3 ITD/TKD double mutations. IC50s' of HM43239 against FLT3 WT, FLT3 ITD and FLT3 D835Y kinases are 1.1 nM, 1.8 nM and 1.0 nM, respectively.

Tags: Flt3 mutation | Flt3 mutations | Flt3 leukemia | Flt3 acute myeloid leukemia | Flt3 receptor | Flt3 signaling | Flt3 cancer | Flt3 inhibitors clinical trials | Flt3 activation | Flt inhibitor review