Tivozanib

Tivozanib (AV-951; KRN951) is a selective, orally active inhibitor for vascular endothelial growth factor receptor (VEGFR)-1, 2 3, with IC₅₀s of 30, 6.5 and 15 nM, respectively. Tivozanib exhibits antitumor efficacy^[1]. In Vitro:Tivozanib inhibits the phosphorylation of VEGFR-1, VEGFR-2, and VEGFR-3, with IC₅₀s of 0.16-0.24 nM^[1].
Tivozanib (0-100 nM, 24 h) inhibits VEGF-induced proliferation of HUVECs with IC₅₀ of 0.67 nM, and migration of HUVECs in dose-dependent manner^[1].
Tivozanib (0-300 nM, 1 h) selectively inhibits the VEGF-stimulated phosphorylation of MAPKs in endothelial cells ligand-dependently, with IC₅₀s of 0.13 and 0.18 nM for ERK1 and ERK2, respectively^[1]. In Vivo:Tivozanib (0.04-1 mg/kg, po for 14 days) exhibits antitumor efficacy against breast, colon, hepatic, lung, ovarian, pancreatic, and prostate cancer in athymic mice model^[1].
Tivozanib (0.2-1 mg/kg, po for 21 days) reversibly suppresses vascular permeability and angiogenesis in Calu-6 tumor bearing rats model^[1].
Tivozanib (5 mg/kg, po, single dose) reveals a AUC_inf of 44.5 μg·h/mL, C_max of 2823 ng/mL in athymic mice model^[1].