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Field of application
NDI-031407 (NDI 031407) is a novel potent, selective TYK2 inhibitor with IC50 of 0.21 nM in radiometric assays, 20 fold selectivity over JAK3 (4.2 nM), 147 fold for JAK2 (31 nM), and 220 fold for JAK1 (46 nM).NDI-031407 has high potency in cell line and primary cell assays for TYK2-dependent cytokines (IL-12, IC50=118 nM) over TYK2-independent cytokines (GM-CSF).NDI-031407 blocks IL-23–induced STAT3 phosphorylation and IL-17A production in human CD4+ T cells.NDI-031407 inhibits disease progression in the SKG model of Spondyloarthritis (SpA).NDI-031407 suppresses systemic IL-23–induced type 3 immunity in vivo.
Lepzacitinib is a Janus kinase inhibitor targeting to JAK 1/3. Lepzacitinib exhibits anti-inflammatory effect and inhibits atopic dermatitis and other skin diseases.
VVD-118313 (compound 5a) is a potent, selective JAK1 inhibitor. VVD-118313 targets an isoform-restricted allosteric cysteine to block JAK1-dependent trans-phosphorylation and cytokine signaling. VVD-118313 can be used for research of cancer.
TD-1473 (Izencitinib, TD1473, JNJ 8398) is a potent, selective, oral gut-selective pan-JAK inhibitor with pKi of 10.0/10.0/8.8/9.5 for human recombinant JAK1, JAK2, JAK3 and TYK2.TD-1473 inhibited cytokine-induced phosphorylation of STAT1 in mouse primary colonic epithelial cells with pIC50 values for inhibition against IL-6, IFNα and IFNγ were 7.3, 6.8 and 7.0.TD-1473 demonstrated JAK inhibitory activity in ex vivo mouse colon and human IBD patient colonic tissue. TD-1473 (Izencitinib) is under development for the treatment of ulcerative colitis.
JAK-IN-14 is a potent and selective JAK1 inhibitor, with an IC50 of <5 μM. JAK-IN-14 is >8-fold more selective for JAK1 than JAK2 and JAK3 (Patent WO2016119700A1, compound 16).
Ifidancitinib is a potent and selective inhibitor of JAK kinases 1/3. Ifidancitinib can be used in studies of allergies, asthma and autoimmune diseases.