Biochem/physiol Actions
Dovitinib (CHIR-258) is an orally active and potent receptor tyrosine kinase (RTK) inhibitor against class III (FLT3/KIT/PDGFR1/CSFR/PDGFR2 IC50 = 1/2/27/36/200 nM), class IV (FGFR1/3 IC50 = 8/9 nM), and class V (VEGFR1/2/3 IC50 = 10/13/8 nM) RTKs, but not INSR, EGFR1, ErbB2 or Raf (IC50 = 2.1, 2.2, >20, >25 μM, respectively). Dovitinib inhibits target RTKs phosphorylation in cultured cells (pVEGFR1 and pPDGFRβ IC90 <50 nM; KM12L4a) and exhibits in vivo anti-tumor efficacy in mice bearing KM12L4a or HCT116 human cancer xenografts (10-120 mg/kg/day p.o.).
Orally active, potent inhibitor against class III-V receptor tyrosine kinases (FLT3, KIT, PDGFR1/2, CSFR, FGFR1/3, VEGFR1/2/3) with efficacy in vitro and in vivo.