NRx Pharmaceuticals, Inc. announced that advice from regulatory counsel, which includes former senior officials from the Food and Drug Administration, supports filing two New Drug Applications (NDAs) in 2024: an application for Accelerated Approval for NRX-101 to treat bipolar depression in patients with akathisia and an application for approval of NRX-100 (IV ketamine) for treatment of suicidal depression. While efficacy and safety data are now in hand, filing of the above applications is dependent upon completion of 12-month stability data in manufactured lots as required by FDA regulations. As disclosed in an 8K filing, NRX-101 will be filing the NRX-101 application without a commercial partner.

NRX-101 for Bipolar Depression: NRX-101 is the Company's patented (Composition of Matter), oral combination of the NMDA antagonist D-cycloserine and lurasidone for bipolar depression. Data from two active control clinical trials vs. the standard of care, lurasidone, have shown comparable antidepressant efficacy with clinically important reductions in suicidality and/or akathisia.

To the Company's knowledge, no other oral agent has demonstrated such a valuable profile. With a best-in-class product profile, the Company projects NRX-101 sales in excess of $2 billion. NRX-101 was awarded Breakthrough Therapy Designation, Fast Track Designation, a Biomarker Letter of Support, and a Special Protocol Agreement by the FDA for treatment of suicidal bipolar depression.

Intravenous ketamine is widely accepted as a standard of care for acute treatment of suicidal depression, in the absence of an FDA-labeled product; the only treatment currently approved by FDA is electroconvulsive therapy (ECT). According to the CDC, 3.5 million Americans make a plan for suicide each year.8 This represents a $3-5 billion market at expected pricing. This application has been in development and awaits 12-month stability data for filing, which is expected in 2024.