AXON -22%/PM on phase-2 failure: https://globenewswire.com/news-release/2018/12/10/1664256/0/en/Axovant-Reports-Results-of-Exploratory-Phase-2-Clinical-Study-of-Nelotanserin-in-Lewy-Body-Dementia-Patients-Experiencing-REM-Sleep-Behavior-Disorder.html Axovant Sciences…today reported topline results of the 34-patient, exploratory phase 2 clinical study of nelotanserin for the treatment of REM sleep behavior disorder (RBD) in patients with Lewy body dementia (LBD). The primary efficacy endpoint of reduction in frequency of RBD events as measured by sleep laboratory video assessment was not met.