NRX-100 is NRx Pharmaceuticals’ investigational preservative-free intravenous ketamine product being developed for severe depressive conditions with suicidality. Company disclosures state it has Fast Track designation and an FDA-discussed pathway toward NDA filing using existing trial and real-world evidence. It is not presented as an approved product.
Drug Class
Preservative-free intravenous ketamine
Approval Status
Investigational; FDA Fast Track designated and pursuing NDA pathway
Mechanism of Action
Developed on an NMDA-focused therapeutic platform as an intravenous ketamine treatment
Brand Names
NRX-100
Indications
\Suicidal ideation in patients with depression, including bipolar depression\
\Treatment resistant depression in the context of suicidality (proposed broader indication)\
NRx said the FDA issued a positive review letter on its preservative-free ketamine ANDA, requesting only minor administrative changes. The company also received FDA guidance outlining a path to an NDA for NRX-100 using clinical trial data and real-world evidence.
NRx Pharmaceuticals said an FDA Type C meeting indicated a path to an NDA for NRX-100, using clinical trial results and real-world ketamine data from more than 65,000 patients.
NRx said the FDA outlined a path for a New Drug Application for NRX-100, a preservative-free ketamine formulation for depression with suicidality. The company plans to submit the NDA by June 2026 and said no additional nonclinical or bridging studies would be required.
The bipolar depression treatment pipeline includes over 10 therapies from 8+ companies, with recent Phase 3 trials initiated for azetukalner and multiple emerging drugs targeting novel pathways expected to launch by 2036.
NRx Pharmaceuticals completed an in-person FDA Type C meeting regarding NRX-100, a preservative-free ketamine formulation for suicidal depression. The company received guidance on a path to file a New Drug Application based on existing trial data and Real World Evidence from over 65,000 patients.
NRx Pharmaceuticals completed a Type C meeting with the FDA, receiving guidance to file a New Drug Application for NRX-100 based on existing trial data and real-world evidence from over 65,000 patients, with submission planned for Q2 2026.
NRx Pharmaceuticals completed a Type C meeting with FDA leadership and received oral guidance supporting a New Drug Application for NRX-100 (preservative-free ketamine) based on existing trial data and Real World Evidence from over 65,000 patients.