FGFR

E-7090 is a fibroblast growth factor receptor inhibitor potentially for the treatment of solid tumors.

VSPPLTLGQLLS is a small peptide FGFR3 inhibitor, peptide P3, inhibits FGFR3 phosphorylation. VSPPLTLGQLLS inhibits 9-cisRA-induced tracheal lymphangiogenesis and blocks lymphatic endothelial cell (LEC) proliferation, migration, and tubule formation.

PROTAC FGFR2 degrader 1 is a specialized degrader designed to selectively target and degrade FGFR2, exhibiting a DC50 of 6.46 nM and an FGFR2 IC50 of 0.08 nM. This compound demonstrates significant anti-proliferative activity, inducing G0/G1 cell cycle arrest in KATOIII and SNU16 cell lines while inhibiting apoptosis through modulation of downstream signaling proteins, p-ERK and p-PLCγ. In in vivo studies, PROTAC FGFR2 degrader 1 effectively suppresses the growth of SNU16 xenograft tumors, showcasing its potential for research in gastric cancer therapeutic applications.

PHM16 is an ATP-competitive inhibitor targeting Focal Adhesion Kinase (FAK) and Fibroblast Growth Factor Receptor 2 (FGFR2), with IC50 values of 0.4 μM and 0.37 μM, respectively. This compound exhibits strong anti-angiogenic properties, making it a valuable tool for studies focused on inhibiting tumor angiogenesis and understanding related signaling pathways. Its dual inhibition profile positions PHM16 as an important reagent for cancer research and therapeutic development targeting angiogenesis-related mechanisms.

LC-MB12 is an orally active PROTAC compound that targets FGFR2 degradation, with a DC₅₀ of 11.8 nM. It consists of the FGFR2 inhibitor BGJ398, a PROTAC linker, and a cereblon (CRBN) ligand. LC-MB12 effectively inhibits FGFR2 signaling in gastric cancer cells and exhibits antitumor activity.

Tinengotinib (TT00420) is an orally bioavailable, spectrally selective small-molecule kinase inhibitor targeting Aurora A/B (IC50=1.2–3.3 nM), FGFR1/2/3 (IC50=1.5–3.5 nM), VEGFRs, JAK1/2, and CSF1R. It disrupts Aurora kinase-mediated cell cycle progression, inducing G2/M arrest, inhibits the FGFR/JNK-JUN signaling pathway, and activates the MEK/ERK-dependent apoptotic pathway. Tinengotinib exhibits potent anti-tumor proliferation, pro-apoptotic, anti-angiogenic, and tumor microenvironment-modulating activities. It is a promising candidate for research in triple-negative breast cancer (TNBC), gallbladder cancer, and tumor immune microenvironment studies.

Gunagratinib (ICP-192) is a low-toxicity, orally active, irreversible pan-FGFR inhibitor that covalently binds to fibroblast growth factor receptors (FGFR1–4), potently and selectively blocking FGFR-mediated signaling. It is designed for the treatment and study of FGFR-driven cancers, including those with FGFR alterations implicated in tumor growth and survival.

Irpagratinib (ABSK011) is an orally active and highly potent FGFR4 (fibroblast growth factor receptor 4) inhibitor with an IC₅₀ of less than 10 nM. It effectively inhibits FGFR4 autophosphorylation, thereby blocking downstream signaling pathways critical for tumor cell survival and proliferation. Pharmacokinetic studies in mice, rats, and dogs have demonstrated high systemic exposure of Irpagratinib, supporting its potential for oral dosing in clinical applications. In preclinical models, Irpagratinib has shown significant antitumor activity, particularly in subcutaneous xenograft tumor models, making it a promising candidate for the treatment of FGFR4-driven cancers such as hepatocellular carcinoma.

Resigratinib (KIN-3248) is an irreversible, orally active covalent inhibitor targeting fibroblast growth factor receptors FGFR1–4. It binds covalently to the conserved cysteine residue Cys492 within the kinase domain, effectively blocking FGFR signaling. Resigratinib demonstrates potent activity against both wild-type FGFRs and clinically relevant drug-resistant mutations, including FGFR2 V565F and FGFR3 V555M.

Lirafugratinib (RLY-4008) is an orally active, irreversible, and highly selective inhibitor of fibroblast growth factor receptor 2 (FGFR2), with an IC₅₀ of 3 nM. It covalently binds to cysteine 491 (Cys491) in the FGFR2 kinase domain, enabling durable inhibition of FGFR2 signaling. Lirafugratinib is specifically designed to target FGFR2-driven cancers, including those with primary activating alterations and acquired resistance mutations, while sparing other FGFR family members to minimize off-target effects. It has demonstrated potent antitumor activity, including tumor regression, making it a promising therapeutic candidate for FGFR2-altered malignancies such as intrahepatic cholangiocarcinoma and other solid tumors.

PD-161570 is a potent ATP-competitive inhibitor of the human fibroblast growth factor receptor 1 (FGFR1) with an IC50 of 39.9 nM and a Ki of 42 nM. It also demonstrates inhibitory effects on platelet-derived growth factor receptor (PDGFR), epidermal growth factor receptor (EGFR), and c-Src tyrosine kinases, with IC50 values of 310 nM, 240 nM, and 44 nM, respectively. Additionally, PD-161570 effectively inhibits PDGF-stimulated autophosphorylation and FGFR phosphorylation, with IC50s of 450 nM and 622 nM, respectively. This compound is relevant in studies of bone morphogenetic proteins (BMPs) and TGF-β signaling pathways.