Irpagratinib (ABSK011) is an orally active inhibitor of fibroblast growth factor receptor (FGFR) tyrosine kinase, targeting to FGFR4 (IC50<10 nM). Irpagratinib inhibits the auto-phosphorylation of FGFR4 and blocks signal transduction from FGFR4 to downstream pathway activation. Irpagratinib exhibits high exposure in PK study in mouse, rat and dog, and also shows antineoplastic/anti-tumor activity in subcutaneous xenograft tumor models.
References:
[1]. Chen Z. Abstract LB-272: Discovery and characterization of a novel FGFR4 Inhibitor for the treatment of hepatocellular carcinoma[J]. Cancer Research, 2018, 78(13_Supplement): LB-272-LB-272.