ICA 069673 is a heteromeric Kv7 channel activator. It is selective for Kv7.2/7.3 over Kv7.3/7.5 (EC50s = 0.69 and 14.3 μM, respectively) and also activates Kv7.4, Kv7.5, and heteromeric Kv7.4/7.5 channels in a dose-dependent manner. ICA 069673 has no activity against hERG, Nav1.5, and Kv7.1 cardiac ion channels (IC50s = >30 μM). Oral administration of ICA 069673 increases latency to first tonic-clonic seizure in the rat maximal electroshock and pentylentetrazol-induced seizure models (ED50s = 1.5 and <1 mg/kg, respectively). Formulations containing ICA 069673 are under clinical investigation for the treatment of epilepsy.
