ATR-101

ATR-101 (PD-132301, Nevanimibe) is a selective and potent inhibitor of ACAT1 with IC50 of 52 nM; induces H295R cell apoptosis, causes mitochondrial hyperpolarization, reactive oxygen release, and ATP depletion, caspase-3/7 activation, and membrane permeabilization; decreases the formation of cholesteryl esters and increases FC levels in H295R adrenocortical carcinoma cells; inhibits the establishment and impeds the growth of ACC-derived H295R cell xenografts in mice; orally active.Cushing Disease Phase 2 Clinical(In Vitro):Coincubation of Nevanimibe hydrochloride (PD-132301 hydrochloride; ATR101 hydrochloride; 3 nM-30 μM) and Cholesterol markedly increases toxicity in a dose-dependent manner, where 3 nM Nevanimibe in the presence of 60 μg/mL Cholesterol reduces survival by 60% after 24 hours. All doses of Nevanimibe (3 nM-30 μM) induces cytoxicity in the presence of Cholesterol, whereas treatment with Cholesterol in the absence of Nevanimibe has no effect on cell viability.