The oral selective glutamate inhibitor evenamide is moving on to advanced clinical trials on the strength of positive results in a phase 2 study, Ravi Anand, MD, reported at the annual congress of the European College of Neuropsychopharmacology.
Evenamide is a highly selective inhibitor of voltage-gated sodium channels that also attenuates glutamate release by hyperexcited neurons, explained Dr. Anand, chief medical officer at Newron Pharmaceuticals, a company based in Bresso, Italy, that is developing this novel antipsychotic agent.
The 4-week, randomized, double-blind, placebo-controlled, multicenter study included 89 patients with schizophrenia of a mean 18 years’ duration. All participants showed baseline evidence of breakthrough psychosis despite being on stable therapeutic doses of previously effective risperidone or aripiprazole. They were randomized either to add-on oral evenamide at a starting dose of 15 mg twice daily titrated to 20 or 25 mg twice daily or to placebo.