NeuroRx developing the first oral therapy for Acute Suicidal Ideation and Behavior in Bipolar Depression has received FDA clearance to proceed with its phase 2b/3 study protocol under an Investigational New Drug (IND) application and is now enrolling study sites for its clinical trial of NRX-101.  The clinical trial, details of which are posted on www.clinicaltrials.gov, seeks to demonstrate that NRX-101 is safe and effective in maintaining remission from ASIB and depression following initial stabilization with ketamine. NRX-101 is a fixed dose combination of D-Cycloserine, a glycine site NMDA antagonist and lurasidone, a 5-HT2a antagonist. The Mass General Clinical Trials Network and Institute will provide leadership for the clinical trial, and Prof. Andrew Nierenberg, M.D., Director of Bipolar Research in the department of Psychiatry at Massachusetts General Hospital will serve as the study's Principal Investigator.