Pesampator (PF-04958242) is a potent and highly selective positive allosteric modulator of AMPA receptor (an AMPA potentiator) with an EC50 of 310 nM and a Ki of 170 nM.In Vivo: Pesampator (0.1-1 mg/kg; SC) dose-dependently increases CD-1 mouse cerebellum cGMP and Pesampator (0.1-0.32 mg/kg; SC) decreases fall latency in C57BL/6J mice traversing an accelerating rotarod.
Pesampator (0.001-0.01 mg/kg; male Sprague-Dawley rats) reverses the MK-801-mediated (0.05 mg/kg; IV) reduction in paired-pulse facilitation (PPF) after cumulative or a single (0.01 mg/kg) intravenous dose.
Pesampator (0.0032–0.032 mg/kg; SC) attenuates ketamine-induced working memory disruptions in rats as determined by mean errors in a radial arm maze.
In rats, Pesampator (0.027, 0.08, and 0.60 mg/kg; SC) dose-dependently affectes the regional brain uptake of 2-deoxy-2-[18F]fluoro-d-glucose (FDG).