Daraxonrasib (3-25 mg/kg; oral administration; Single dose) showed dose-dependent fluid and tumor exposure in BALB/c nude models carrying Capan-2 xenografts, with tumor exposure levels approximately 3-7 times higher than fluid exposure levels and relatively slower elimination rates from tumors.
Daraxonrasib (10-25 mg/kg; oral administration; Every time; 4 weeks) demonstrated dose-dependent anti-tumor activity in a series of human tumor xenograft models carrying common KRAS mutations (such as Capan-2, NCI-H441, HPAC, NCI-H358, etc.).
Daraxonrasib (25 mg/kg; oral administration; When used alone in the NCI-H2122 non-small cell lung cancer with KRASG12C mutation and the GP2D colorectal cancer xenograft model with KRASG12D mutation, it can inhibit tumor growth. When used in combination with KO-2806, it can lead to significant tumor regression.