FLT

Nintedanib (Intedanib) is a triple vascular kinase inhibitor that inhibits VEGFR1, VEGFR2, and VEGFR3 (IC50=34 13 13 nM), FGFR1, FGFR2, and FGFR3 (IC50=69 37 108 nM), PDGFRα, and PDGFRβ (IC50=59 65 nM). Nintedanib has antitumor activity and inhibits tumor growth by inhibiting angiogenesis.

Fostamatinib (R788)(IC50 of 41 nM), which is a prodrug of the active metabolite R406, is a Syk inhibitor. It does not work on Lyn.

Ripretinib (DCC-2618) is an orally bioavailable inhibitor of (KIT) and (PDGFRA).

Gilteritinib (ASP2215) is a potent inhibitor of FMS-related tyrosine kinase 3 (FLT3) and AXL tyrosine kinase receptors (IC50 = 0.29 nM and <1 nM, respectively). In preclinical studies, gilteritinib demonstrated strong antileukemic and antitumor effects. Gilteritinib is currently in several Phase 3 clinical trials for acute myeloid leukemia.

Sorafenib (Bay 43-9006) is a multikinase inhibitor that targets Raf-1, B-Raf, VEGFR2, VEGFR3, VEGFR4, PDGFRβ, FLT3, c-Kit, and others (IC50=6 22 90 15 20 20 57 58 nM) with oral activity. It exhibits antitumor properties and can induce autophagy, apoptosis, and agonistic iron death.

Pexidartinib (PLX-3397) is a capsule containing a small-molecule receptor tyrosine kinase (RTK) inhibitor targeting KIT, CSF1R, and FLT3, with potential antineoplastic activity.

Cabozantinib (XL184) is a multi-targeted tyrosine kinase receptor inhibitor that inhibits VEGFR2, c-Met, Kit, Axl, and Flt3 (IC50=0.035 1.3 4.6 7 11.3 nM). Cabozantinib exhibits both antitumor and antiangiogenic activity.

Fostamatinib Disodium (R788 Disodium) is an orally available Syk kinase inhibitor with potential anti-inflammatory and immunomodulatory activities.

UNC2025 (mrx-6313)(IC50 of 0.74 nM and 0.8 nM) is a potent and orally bioavailable dual MER FLT3 inhibitor. UNC-2025 is about 20-fold selectivity higher than Axl and Tyro3.

Quizartinib (AC220) is an inhibitor of FLT3 (Kd: 1.6 nM) and demonstrates high selectivity for FLT3 when tested against a panel of 227 additional kinases.

NCT-503 is a phosphoglycerate dehydrogenase (PHGDH) inhibitor (IC50=2.5 µM) with no activity against other dehydrogenases. NCT-503 has antitumor activity and inhibits the growth of PHGDH-dependent tumors.

GSK-1070916 (GSK-1070916A) is a reversible and ATP-competitive inhibitor of Aurora B C with IC50 of 3.5 nM 6.5 nM. It displays >100-fold selectivity against the closely related Aurora A-TPX2 complex. Phase 1.

Merestinib (LY2801653) is an orally available, small molecule inhibitor of the proto-oncogene c-Met (Ki: 2 nM) with potential antineoplastic activity. Merestinib electively binds to c-Met, thereby inhibiting c-Met phosphorylation and disrupting c-Met signal transduction pathways. This may induce cell death in tumor cells overexpressing c-Met protein or expressing the constitutively activated c-Met protein.

R406 (R-406 besylate) is an effective Syk inhibitor (IC50: 41 nM) and shows no effects on Lyn.

MRX-2843 (UNC2371) is a potent and orally active inhibitor of MERTK and FLT3(IC50s of 1.3 nM and 0.64 nM, respectively).

Fedratinib (TG-101348) (TG101348) is an ATP-competitive inhibitor of JAK2 (IC50: 3 nM) with significantly less potent activity against JAK3.

JI6 (JAK3 Inhibitor VI) is a potent, selective and orally active FLT3 inhibitor. JI6 exhibits IC50s of ∼40, 8, and 4 nM for FLT3-WT, FLT3-D835Y, and FLT3-D835H, respectively. JI6 also inhibits c-Kit and JAK3, with IC50s of ∼500 and ∼250 nM, respectively. JI6 has research value in acute myeloid leukemia.

BGB-102 (JNJ-26483327) is a kinase inhibitor targeting FLT3 and YES1 and an antagonist targeting EGFR and VEGFR3, which may be useful in the study of macular degeneration and diseases associated with genetic disorders and malformations.

Brigatinib (AP-26113) is a highly potent and selective inhibitor of ALK.

Sunitinib (SU 11248) is a multi-targeted receptor tyrosine kinase (RTK) inhibitor that inhibits VEGFR2 and PDGFRβ (IC50=80 2 nM). It exhibits antitumor activity and is used for treating kidney cancer and gastrointestinal tumors.

SGI-7079 is a new selective Axl inhibitor. SGI-7079 can be a dose-dependent manner inhibited growth of tumors. It is also a potential therapeutic target for EGFR inhibitor resistance.

DCC-2036 (Rebastinib (DCC-2036)) is a conformational control Bcr-Abl inhibitor for Abl1(WT, IC50: 0.8 nM) and Abl1(T315I, IC50: 4 nM), also inhibits LYN, SRC, HCK, FGR, FLT3, KDR, and Tie-2, and low activity to c-Kit. Rebastinib aimed at the Angiopoietin2-Tie2 pathway.

HM43239 is an orally active and selective FLT3 inhibitor with IC 50 s of 1.1 nM, 1.8 nM and 1.0 nM for FLT3 WT, FLT3 internal tandem duplication (ITD) and FLT3 D835Y kinases, respectively. HM43239 directly inhibits the kinase activity of FLT3 as a reversible Type I inhibitor and effectively modulates downstream p-STAT5 and p-ERK. HM43239 also demonstrated inhibition of SYK, JAK1 2 and TAK1. HM43239 inhibits the proliferation and induces the apoptosis of leukemic cells [1] [2] [3].

JAK3-IN-14 is a potent, selective and orally active FLT3 inhibitor, with IC50s of ∼40, 8, and 4 nM for FLT3-WT, FLT3-D835Y, and FLT3-D835H, respectively.