2972712-63-1

KA2507 hydrochloride (100-200 mg/kg; p.o.; daily; for 20 days) inhibits tumor growth in the syngeneic B16-F10 mouse melanoma model^[1].
KA2507 hydrochloride also demonstrates antitumor efficacy in CT26 and MC38 colorectal cancer models^[1].
Analysis of tumor samples also indicates modulation of biomarkers of antitumor immunity at efficacious dosing, with KA2507 hydrochloride administration resulting in reduced STAT3 activation (as measured by phospho-STAT3, an important suppressor of the antitumor immune response), reduced PD-L1 expression, and increased expression of MHC class I^[1].
KA2507 hydrochloride exhibits poor oral bioavailability (mice 15%) and Cmax (mice 300 ng/mL) following oral administration (mice 200 mg/kg)^[1].