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].
Dovitinib-D8 (CHIR-258-D8) is the deuterium labeled Dovitinib. Dovitinib (CHIR-258) 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/FGFR3, VEGFR1/VEGFR2/VEGFR3 and PDGFRα/PDGFRβ, respectively[1][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 (Bay 43-9006) is a potent multikinase inhibitor with IC50s of 6 nM, 20 nM, and 22 nM for Raf-1, B-Raf, and VEGFR-3, respectively.
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.
PD180970 is a highly potent and ATP-competitive p210Bcr-Abl kinase inhibitor, with an IC50 of 5 nM for inhibiting the autophosphorylation of p210Bcr-Abl. PD180970 also inhibits Src and KIT kinase with IC50s of 0.8 nM and 50 nM, respectively. PD180970 indcues apoptosis of K562 leukemic cells, and can be used for chronic myelogenous leukemia research[1][2][3].
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].
Multi-kinase-IN-2 (compound 7h) is an orally active and potent angiokinase inhibitor. Multi-kinase-IN-2 exhibits excellent inhibitory activity against angiokinases including VEGFR-1/2/3, PDGFRα/β, and FGFR-1, as well as LYN and c-KIT kinases. Multi-kinase-IN-2 significantly attenuates phosphorylation of AKT and ERK proteins. Multi-kinase-IN-2 induces cell apoptosis. Multi-kinase-IN-2 shows anticancer activity[1].
Pazopanib-13C,d3 is the deuterium and 13C labeled Pazopanib[1]. 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[2][3].
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.
Motesanib is a potent ATP-competitive inhibitor of VEGFR1/2/3 with IC50s of 2 nM/3 nM/6 nM, respectively, and has similar activity against Kit, and is appr 10-fold more selective for VEGFR than PDGFR and Ret.
Cabozantinib-d4 is 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.
AZD2932 is a potent and multi-targeted kinase inhibitor VEGFR2, PDGFβ, Flt-3 and c-Kit with IC50s of 8, 4, 7 and 9 nM in cell assay, respectively.
Masitinib is an orally available Kit inhibitor with an IC50 of 200 nM. It also inhibits PDGFRα/β with an IC50 of 540 nM/800 nM nM.
Imatinib D8 (STI571 D8) is a deuterium labeled Imatinib (STI571). Imatinib is an orally bioavailable tyrosine kinases inhibitor that selectively inhibits BCR/ABL, v-Abl, PDGFR and c-kit kinase activity[1][2].
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].
Sitravatinib is a novel small molecule inhibitor targeting multiple RTKs involved in driving sarcoma cell growth with IC50 of 3980 nmol/Lin vitro: MGCD516 is superior to other multi-kinase inhibitors in inhibiting cell proliferation, RTK phosphorylation, and phosphorylation of downstream effectors. MGCD516 is unique in a way that it has broad spectrum activity against many RTKs including c-Met, c-Kit, Axl, PDGFR, and Eph receptors that are known to play a role in driving sarcoma cell growthIn vivo: MGCD516 induces significant tumor growth suppression than imatinib and crizotinib.
Avapritinib is a potent and selective exon 17 mutant KIT kinase inhibitor with IC50 of 0.27 nM for KIT D816V.
c-Kit-IN-5 is potent inhibitor of c-Kit, with IC50s of 22 nM and 16 nM in kinase assay and cell assay, respectively. c-Kit-IN-5 shows more than 200-fold selectivity for c-Kit over KDR, p38, Lck, and Src. c-Kit-IN-5 also exhibits desirable pharmacokinetic properties[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].
Telatinib mesylate (Bay 57-9352 mesylate) is a potent and orally active VEGFR2, VEGFR3, PDGFα, and c-Kit inhibitor with IC50s of 6 nM, 4 nM, 15 nM and 1 nM, respectively[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].