Afuresertib (GSK2110183) is a potent, orally bioavailable Akt inhibitor with Ki of 0.08 nM, 2 nM, and 2.6 nM for Akt1, Akt2, and Akt3, respectively. Phase 2.
Afuresertib inhibits the kinase activity of the E17K AKT1 mutant protein with EC50 of 0.2 nM. Afuresertib shows a concentration-dependent effect on multiple AKT substrate phosphorylation levels, including GSK3b, PRAS40, FOXO and Caspase 9. Overall 65% of the hematological cell lines are sensitive to afuresertib (EC50 < 1 μM). Among tested solid tumor cell lines, 21% have EC50 < 1 μM in response to afuresertib.[1]
Mice bearing BT474 breast tumor xenografts are dosed with afuresertib (p.o.) at 10, 30 or 100 mg/kg daily which results in 8, 37 and 61% TGI, respectively. Mice bearing SKOV3 ovarian tumor xenografts are treated with 10, 30 and 100 mg/kg afuresertib which results in 23, 37 and 97% TGI, respectively.[1]
[1] Dumble M, et al. PLoS One, 2014, 9(6):e100880.