TrkC Inhibitor

Larotrectinib (LOXO-101) is an ATP-competitive oral, selective inhibitor of the tropomyosin-related kinase (TRK) family receptors, with low nanomolar 50% inhibitory concentrations against all three isoforms (TRKA, B, and C).

Selitrectinib (LOXO-195) is a next-generation TRK kinase inhibitor, with IC₅₀s of 0.6 nM and <2.5 nM for TRKA and TRKC, respectively.

GNF-5837 is a potent, selective, and orally bioavailable pan-tropomyosin receptor kinase (TRK) inhibitor which display antiproliferative effects in cellular Ba/F3 assays ( IC₅₀ values of 7 nM, 9 nM and 11 nM for cells containing the fusion proteins Tel-TrkC, Tel-TrkB and Tel-TrkA, respectively) .

Altiratinib (DCC-2701) is a multi-targeted kinase inhibitor with IC₅₀s of 2.7, 8, 9.2, 9.3, 0.85, 4.6, 0.83 nM for MET, TIE2, VEGFR2, FLT3, Trk1, Trk2, and Trk3 respectively.

DZX19 (Compound C02) is an orally active, selective TRK inhibitor with a TRKA IC₅₀ value of 1.32 nM, a TRKB IC₅₀ of 2.28 nM, and a TRKC IC₅₀ of 4.05 nM. DZX19 inhibits the kinase activities of wild-type TRKA, TRKA mutants (G595R, F589L, G667C), wild-type TRKB, and wild-type TRKC, and suppresses the phosphorylation of TRKA as well as its downstream AKT and ERK signaling pathways. DZX19 induces apoptosis. DZX19 inhibits tumor growth in a colorectal cancer xenograft mouse model. DZX19 is applicable for the research of colorectal cancer.

PF-07245303 is a ITK/TRK inhibitor. PF-07245303 reduces the production of inflammatory cytokines such as IL-4 and IFNγ, and inhibits the phosphorylation of PLCγ1. PF-07245303 inhibits nerve growth factor-induced basophil activation and the phosphorylation of TRKA. PF-07245303 reduces oxazolone-induced ear swelling in mouse ear tissues. PF-07245303 is applicable to research related to atopic dermatitis.

TRK-IN-34 is an orally active TRKand TRKC mutant kinase inhibitor, with IC₅₀ values of 0.75 nM and 0.96 nM against TRKA^G595R and TRKA^G667C, respectively. TRK-IN-34 inhibits the kinase activities of TRKA^G595R and TRKA^G667C at the functional level. TRK-IN-34 inhibits the proliferation of TRKA-transfected cells, exerts tumor growth-inhibitory effects and achieves partial tumor regression in xenograft models. TRK-IN-34 can be used to study TRK inhibitor-resistant cancers driven by the TRKA^G667C mutation.

Larotrectinib sulfate (LOXO-101 sulfate; ARRY-470 sulfate) is an ATP-competitive oral, selective inhibitor of the tropomyosin-related kinase (TRK) family receptors, with low nanomolar 50% inhibitory concentrations against all three isoforms (TRKA, B, and C).

Belizatinib (TSR-011) is an orally active, potent inhibitor of ALK and TRKA, TRKB, and TRKC, with IC₅₀ of 0.7 nM for wild-type recombinant ALK kinase.

PF-6683324 (Trk-IN-4) is a potent pan-Trk inhibitor in cell-based assays with IC₅₀s of 1.9 nM, 2.6 nM and 1.1 nM for TrkA, TrkB and TrkC, respectively. Anti-hyperalgesic effect.

PF-06273340 is a peripherally restricted pan-Trk inhibitor with IC₅₀ values of 6, 4, 3 nM for TrkA, TrkB, and TrkC receptors. PF-06273340 binds in a DFG-out conformation, targeting less conserved kinase ligand binding domain regions outside the ATP binding pocket. PF-06273340 exhibits anti-hyperalgesic and analgesic effects. PF-06273340 can be used for the research of pain.

Zurletrectinib is a brain-penetrant, orally active TRK inhibitor (TRKA IC₅₀ = 0.81 nM; TRKB IC₅₀ = 0.145 nM; TRKC IC₅₀ = 0.184 nM). Zurletrectinib exhibits stronger activity as a consequence of its augmented binding affinity for TRK kinases. Zurletrectinib exhibits higher activity against most TRK inhibitor resistance mutations (13 out of 18 mutations). Zurletrectinib can be used for the study of glioma.

PF-06737007 is a potent pan-Trk inhibitor in cell-based assays with IC₅₀s of 7.7 nM, 15 nM and 3.9 nM for TrkA, TrkB and TrkC, respectively. Anti-hyperalgesic effect.

TrkA-IN-1 is a potent and selective Tropomyosin-related kinase A (TrkA) inhibitor with an IC₅₀ of 99 nM in a cell-based assay. TrkA-IN-1 has analgesic activity.

LPM4870108 is a potent and orally active pan-Trk (WT and MT) inhibitor, with IC₅₀s of 0.2 nM, 2.4 nM, 3.5 nM and 2.3 nM for TrkC, TrkA, TrkA^G595R and TrkA^G667C, respectively. LPM4870108 shows selectivity for Trk over ALK (IC₅₀=182 nM). LPM4870108 exhibits anti-tumor activity.

JYP0322 (ROS1-IN-3) is a potent orally active, selective, and CNS-penetrant ROS1 inhibitor. JYP0322 selectively inhibits human wild-type ROS1 and human ROS1^G2032R with IC₅₀s of 0.37 and 0.3 nM, respectively, showing 6-130-fold selectivity over TRKA, TRKB, and TRKC. JYP0322 inhibits proliferation of ROS1 fusion-expressing cells, and inhibits tumor growth in mouse xenograft models. JYP0322 can be used for the research of non-small cell lung cancer (NSCLC).

PF-06733804 is a potent pan-Trk inhibitor in cell-based assays with IC₅₀s of 8.4 nM, 6.2 nM and 2.2 nM for TrkA, TrkB and TrkC, respectively. Anti-hyperalgesic effect.

Trk-IN-7 (compound I-6) is a potent TRK inhibitor with IC₅₀s of ranging from 0.25-10 nM for TRKA, TRKB and TRKC, respectively. Trk-IN-7 shows inhibition against EML4-ALK (IC₅₀<15 nM) ALK G1202R, ALK C1156Y, ALK R1275Q, ALK F1174L, ALK L1197M, and ALK G1269A (IC₅₀=5-50 nM).

Trk-IN-8 is a potent TRK inhibitor with IC₅₀s of 0.42, 0.89 and 1.5 nM for TRKAa, TRKA(G595R) and TRKC(G623R), respectively (WO2021115401A1, compound 3).

Trk-IN-20 is a kind of 3-vinylindazole derivatives. Trk-IN-20 suppresses Trk kinases functions by phosphorylation inhibition of TrkA/B/C with IC₅₀ values of 1.6 nM, 2.9 nM and 2.0 nM, respectively.