Piclozotan (SUN-N4057) is a selective 5-HT1A receptor partial agonist, which has neuroprotective effects in animal studies. It has been through early clinical trials in humans for treatment of acute stroke, but results have not yet been announced.
See also List of investigational Parkinson's disease drugs Repinotan Robalzotan Buspirone/zolmitriptan
References