TREK1 and TREK2 channel activator (EC50 = 0.76 μM in Rb efflux assay in TREK1-expressing CHO cells). Exhibits selectivity for TREK1/2 over TRAAK, TASK3 and a range of other potassium channels. Hyperpolarizes membrane potential of dorsal root ganglion neurons and depresses neuronal activity in vitro. Loucif et al (2018) GI-530159, a novel, selective, mechanosensitive two-pore-domain potassium (K2P) channel opener, reduces rat dorsal root ganglion neuron excitability. Br.J.Pharmacol. 175 2272 PMID:29150838
PF05020182 is novel potent and selective Kv7.2 4 potassium channel opener. PF-05020182 (2) significantly inhibits convulsions in the MES assay at doses tested, consistent with in vitro activity measure. The physiochemical properties, in vitro and in vivo activities of PF-05020182 support further development as an adjunctive treatment of refractory epilepsy. Facilitating activation, or delaying inactivation, of the native Kv7 channel reduces neuronal excitability, which may be beneficial in controlling spontaneous electrical activity during epileptic seizures.