r 121919

High affinity corticotropin releasing factor receptor1 (CRF1) antagonist (Ki = 3.5 nM). Reduces stress-induced elevations of plasma ACTH. Anxiolytic and antidepressant in vivo. Orally bioavailable. Chen and Grigoriadis (2005) NBI 30775 (R121919), an orally active antagonist of the corticotropin-releasing factor (CRF) type-1 receptor for the treatment of anxiety and depression. Drug Dev.Res. 65 216 |Jutkiewicz et al (2005) The effects of CRF antagonists, antalarmin, CP154,526, LWH234, and R121919, in the forced swim test and on swim-induced increases in adrenocorticotropin in rats. Psychopharmacology (Berl). 180 215 PMID:15696320 |Gutman et al (2003) The corticotropin-releasing factor1 receptor antagonist R121919 attenuates the behavioral and endocrine responses to stress. J.Pharmacol.Exp.Ther. 304 874 PMID:12538845 |Heinrichs et al (2002) Brain penetrance, receptor occupancy and antistress in vivo efficacy of a small molecule cortico. releasing factor type I receptor selective antagonist. Neuropsychopharmacology 27 194 PMID:12093593

R121919 (NBI30775) is a potent small molecule antagonist of the adrenocorticotropic hormone-releasing factor receptor 1 (CRF1), demonstrating antidepressant and anxiolytic activity, and inhibiting the CRF1 receptor, CRF2 receptor, and CRF-binding proteins.