Amuvatinib hydrochloride (MP470 hydrochloride) is a multi-targeted receptor tyrosine kinases inhibitor, which inhibits c-Kit (D816V), c-Kit (D816H), c-Kit (V560G), c-Kit (V654A), PDGFRα (D842V), and PDGFRα (V561D) with IC50s of 950 nM, 10 nM, 34 nM, 127 nM, 81 nM, and 40 nM, respectively[1]. Antineoplastic activity[2].
Cabozantinib is a potent multiple receptor tyrosine kinases inhibitor that inhibits VEGFR2, c-Met, Kit, Axl and Flt3 with IC50s of 0.035, 1.3, 4.6, 7 and 11.3 nM, respectively.
Zeteletinib (BOS-172738) shows selective inhibitory activity against RET, PDGFR, KIT, NTRK and FLT3 kinases. Zeteletinib has antitumor activity[1].
Barzolvolimab (CDX 0159) is a humanized anti-KIT IgG1 monoclonal antibody. Barzolvolimab specificity and potently inhibits KIT activation by SCF. Barzolvolimab can reduce skin mast cells and disease activity in chronic inducible urticaria[1].
Sorafenib tosylate is a potent multikinase inhibitor, with IC50s of 6 nM, 20 nM, and 22 nM for Raf-1, B-Raf, and VEGFR-3, respectively.
Pexidartinib (PLX-3397) is a multi-targeted receptor tyrosine kinase inhibitor with IC50s of 13 nM, 27 nM, and 11 nM for CSF1R, c-Kit, and FLT3, respectively.
IHMT-TRK-284 (Compound 34) is a potent, orally active type II TRK kinase inhibitor with IC50 values of 10.5, 0.7, and 2.6 nM to TRKA, B, and C respectively. IHMT-TRK-284 displays great selectivity profile in the kinome and good in vivo antitumor efficacies[1].
A novel potent, multikinase inhibitor with IC50 of 10, 7.6 and 25 nM for c-Kit, RET and PDGFRβ, respectively; also potently inhibits FLT3, VEGFR2, Fyn, PDGFRα and VEGFR2; shows promising outcomes for the treatments of idiopathic pulmonary fibrosis (IPF).
Dovitinib is a multi-targeted tyrosine kinase inhibitor with IC50s of 1, 2, 8/9, 10/13/8, 27/210 nM for FLT3, c-Kit, FGFR1/3, VEGFR1/2/3 and PDGFRα/β, respectively.
c-Kit-IN-1 is a potent inhibitor of c-Kit and c-Met with IC50s of <200 nM.
Flumatinib mesylate (HH-GV-678 mesylate), a derivative of imatinib, is a multi-kinase inhibitor with IC50 Values of 1.2 nM, 307.6 nM and 2662 nM for c-Abl, PDGFRβ and c-Kit respectively.IC50 Value: 1.2 nM (c-Abl); 307.6 nM(PDGFRβ); 2662 nM (c-Kit) [1]Target: c-Abl; c-Kit; PDGRFβin vitro: HH-GV-678 can predominantly inhibit the autophosphorylation of Bcr-Abl in K562 cell. In higher concentration, HH-GV-678 can inhibit the phosphorylation of c-Kit in Mo7e cell and the phosphorylation of PDGFR in Swiss3T3 cell, however, HH-GV-678 has no or little effect on other tyrosine kinase including EGFR/KDR/c-Src andHER2 [1]. Flumatinib effectively overcame the drug resistance of certain KIT mutants with activation loop mutations (i.e., D820G, N822K, Y823D, and A829P) [2].in vivo: The purpose of this study was to identify the metabolites of flumatinib in CML patients, with the aim of determining the main metabolic pathways offlumatinib in humans after oral administration. Ultra-performance liquid chromatography/quadrupole time-of-flight mass spectrometry revealed 34 metabolites; 7 primary metabolites were confirmed by comparison with synthetic reference standards. The results show that the parent drugflumatinib was the main form recovered in human plasma, urine, and feces. The main metabolites of flumatinib in humans were the products of N-demethylation, N-oxidation, hydroxylation, and amide hydrolysis [3].
PLX647 is a highly specific dual FMS/KIT kinase inhibitor with IC50 of 28/16 nM respectively.IC50 value: 28/16 nM(FMS/KIT) [1]Target: FMS/KIT dual inhibitorin vitro: PLX647 was tested against a panel of 400 kinases at a concentration of 1 μM, 35-fold above its FMS enzymatic IC50 and 60-fold above its KIT enzymatic IC50. In addition to FMS and KIT, the activities of only nine kinases were inhibited by more than 50%. PLX647 potently inhibits the growth of FLT3–ITD-expressing MV4-11 cells (IC50 = 0.11 μM) but not OCI-AML5 (IC50 = 1.6 μM), which express wild-type FLT3. PLX647 displayed minimal inhibition of the proliferation of Ba/F3 cells expressing BCR–KDR (IC50 = 5 μM) [1]. in vivo: PLX647 (40 mg/kg) was dosed orally 4.25 h before LPS injection. Treatment with PLX647 reduced serum TNF-α levels by 85% compared with the vehicle control. In the same experiment, the positive control dexamethasone (0.5 mg/kg, PO) lowered the TNF-α levels by 96%. Treatment with 40 mg/kg PLX647 also resulted in significant inhibition of IL-6 release (75%), with similar potency to dexamethasone (70%) . In the UUO kidneys, treatment with PLX647 [40 mg/kg twice daily (BID)] resulted in reduction in the levels of F4/80+ macrophages by 77% compared with vehicle [1].
Flumatinib is a multi-kinase inhibitor with IC50 Values of 1.2 nM, 307.6 nM and 2662 nM for c-Abl, PDGFRβ and c-Kit respectively.IC50 Value: 1.2 nM (c-Abl); 307.6 nM(PDGFRβ); 2662 nM (c-Kit) [1]Target: c-Abl; c-Kit; PDGRFβin vitro: HH-GV-678 can predominantly inhibit the autophosphorylation of Bcr-Abl in K562 cell. In higher concentration, HH-GV-678 can inhibit the phosphorylation of c-Kit in Mo7e cell and the phosphorylation of PDGFR in Swiss3T3 cell, however, HH-GV-678 has no or little effect on other tyrosine kinase including EGFR, KDR, c-Src and HER2 [1]. Flumatinib effectively overcame the drug resistance of certain KIT mutants with activation loop mutations (i.e., D820G, N822K, Y823D, and A829P) [2].in vivo: The purpose of this study was to identify the metabolites of flumatinib in CML patients, with the aim of determining the main metabolic pathways off lumatinib in humans after oral administration. Ultra-performance liquid chromatography/quadrupole time-of-flight mass spectrometry revealed 34 metabolites; 7 primary metabolites were confirmed by comparison with synthetic reference standards. The results show that the parent drugflumatinib was the main form recovered in human plasma, urine, and feces. The main metabolites of flumatinib in humans were the products of N-demethylation, N-oxidation, hydroxylation, and amide hydrolysis [3].
c-Kit-IN-3 (Compound 18) is a potent and selective c-KIT kinase inhibitor with an IC50s of 4 nM, 8 nM for c-KIT wt and c-KIT T670I, respectively. c-Kit-IN-3 displays great potencies against most of the gain-offunction mutations in the juxtamembrane domain, drugresistant mutations in the ATP binding pocket, and activation loops[1].
HG-7-85-01 is a type II ATP competitive inhibitor of wild-type and gatekeeper mutations forms of Bcr-Abl, PDGFRα, Kit, and Src kinases. HG-7-85-01 inhibits T315I mutant Bcr-Abl kinase, KDR and RET with IC50s of 3 nM, 20 nM and 30 nM, and is only weak or no inhibition of other kinases (IC50>2 μM). HG-7-85-01 inhibits the cell proliferation, which is mediated by the induction of apoptosis, and inhibition of cell-cycle progression[1].
Henatinib is an orally active small-molecule multikinase inhibitor that has demonstrated broad and potent antitumor activities. Henatinib inhibits the activity of VEGFR-2, c-kit, PDGFR with IC50 values of 0.6 nM, 3.3 nM and 41.5 nM, respectively. Henatinib significantly inhibits VEGFR-2 phosphorylation and its downstream signal pathway in human umbilical vein endothelial cells (HUVECs)[1].
Tafetinib (SIM010603) is an oral multi-targets receptor tyrosine kinases inhibitor. Tafetinib inhibitsstem cell factor receptor (Kit),vascular endothelial growth factor receptor-2 (VEGFR-2),platelet-derived growth factor receptor-β (PDGFR-β),glial cell line-derived neurotrophic factor receptor (Rearranged during Transfection; RET), andFms-like tyrosine kinase-3 (FLT3)withIC50values between 5.0 and 68.1 nmol/l. Tafetinib inhibits the phosphorylation ofPDGFR-βandVEGFR-2. Tafetinib inhibits endothelial cell proliferation, endothelial cells chemotaxis, and corneal angiogenesis[1].
Regorafenib (BAY 73-4506) mesylate is an orally active and potent multi-targeted receptor tyrosine kinase inhibitor, with IC50 values of 13/4.2/46, 22, 7, 1.5 and 2.5 nM for VEGFR1/2/3, PDGFRβ, Kit, RET and Raf-1, respectively. Regorafenib mesylate shows very robust antitumor and antiangiogenic activity[1].
c-Kit-IN-2 is a c-KIT inhibitor with an IC50 of 82 nM, shows superior antiproliferative activities against all the three GIST cell lines, GIST882, GIST430, and GIST48, with GI50s of 3, 1, and 2 nM, respectively[1].
Masitinib mesylate is a novel inhibitor for Kit and PDGFRα/β with IC50 of 200 nM and 540 nM/800 nM, and has weak inhibition to ABL and c-Fms.
Labuxtinib is c-kit tyrosine kinase inhibitor[1].
Tyrphostin AG1296 is a potent and selective inhibitor of platelet-derived growth factor receptor (PDGFR), with an IC50 of 0.8 μM. Tyrphostin AG1296 inhibits signaling of human PDGF α- and β-receptors as well as of the related stem cell factor receptor (c-Kit). Tyrphostin AG1296 is also a potent inhibitor of FLT3, with an IC50 in the micromolar range[1][2][3].
Cabozantinib-d6 (XL184-d6) is the deuterium labeled Cabozantinib. Cabozantinib is a potent multiple receptor tyrosine kinases (RTKs) inhibitor that inhibits VEGFR2, c-Met, Kit, Axl and Flt3 with IC50s of 0.035, 1.3, 4.6, 7 and 11.3 nM, respectively[1][2][3].
AC710 is a potent PDGFR inhibitor with Kds of 0.6, 1.57, 1, 1.3, 1.0 nM for FLT3, CSF1R, KIT, PDGFRα and PDGFRβ, respectively.
Pazopanib (GW786034) is a novel multi-target inhibitor of VEGFR1, VEGFR2, VEGFR3, PDGFRβ, c-Kit, FGFR1, and c-Fms with IC50s of 10, 30, 47, 84, 74, 140 and 146 nM, respectively.
SU14813 maleate is a multi-targeted receptor tyrosine kinases inhibitor with IC50s of 50, 2, 4, 15 nM for VEGFR2, VEGFR1, PDGFRβ and KIT.
Apatinib-d8 (free base) is the deuterium labeled Apatinib free base[1]. Apatinib free base (YN968D1 free base) is an orally bioavailable tyrosine kinase inhibitor, which selectively targets VEGFR-2 (IC50=1 nM). Apatinib free base (YN968D1 free base) is an anti-angiogenic drug for the treatment of advanced or metastatic gastric cancer. Apatinib free base (YN968D1 free base) potently inhibits Ret, c-Kit and c-Src with IC50s of 13, 429 and 530 nM, respectively. It also inhibits cellular phosphorylation of VEGFR-2, c-kit and PDGFRβ[2][3][4].
JI6 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. JI6 also inhibits JAK3 and c-Kit, with IC50s of ∼250 and ∼500 nM, respectively. JI6 can be used for the research of acute myeloid leukemia[1].
VEGFR-IN-1 (compound 3) is a potent angiogenesis inhibitor with IC50s of 0.02, 0.18, 0.24 7.3, and 7 µM for KDR, Flt-1, c-Kit, EGF-R, and c-Src, respectively[1].
Multi-kinase inhibitor 1 is a potent multi-kinase inhibitor. Multi-kinase inhibitor 1 has the potential for diseases or disorders associated with abnormal or deregulated tyrosine kinase activity, particularly diseases associated with the activity of PDGF-R, c-Kit and Bcr-abl[1].