TCS 1102 is a potent, dual orexin receptor antagonist (Ki values are 0.2 and 3 nM for OX2 and OX1 receptors respectively).IC50 value: 0.2 nM (Ki, OX2 receptor); 3 nM (Ki, OX1 receptor) [1]Target: OX2 and OX1 receptorTCS-1102 (10 and 20 mg/kg, i.p.) were found to decrease fear and anxiety in rats 14 days after exposure to footshock.Furthermore, TCS-1102 (10 mg/kg, i.p.) was found to have anxiolytic effects that were specific for HR when tested in the elevated T-maze. [2]
References:
[1]. Bergman JM, et al. Proline bis-amides as potent dual orexin receptor antagonists. Bioorg Med Chem Lett. 2008 Feb 15;18(4):1425-30.
[2]. Chen X, et al. Orexins (hypocretins) contribute to fear and avoidance in rats exposed to a single episode of footshocks. Brain Struct Funct. 2013 Aug 18.