CI

At a glance

ClinicalIndex Comparison Record
Phase 2Completed· 21 enrolled
Drug / intervention
Nitrous Oxide +1 moredrug
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT02139540
NCT02139540Phase 2Completed

Nitrous Oxide as Treatment for Major Depression - a Pilot Study

Washington University School of Medicine·interventional·Posted May 15, 2014·Updated Jan 27, 2020

In Brief

A Phase 2 clinical trial evaluating Nitrous Oxide and Placebo for Depression and Major Depressive Disorder. Completed, enrolled 21 participants across 1 site.

Detailed Summary

Major depressive disorder (MDD) is a global medical problem with significant shortcomings in current therapy. Chief among these is the delay between initiation of pharmacologic therapy and clinical improvement in symptoms. Recently ketamine, an NDMA-receptor antagonist has been shown to rapidly and effectively reverse the symptoms of MDD. Nitrous oxide, another NMDA-receptor antagonist, may produce the same effect with a cleaner side-effect profile and perhaps without the need for intravenous access and anesthesia personnel. Therefore, we propose conducting a pilot randomized placebo controlled double-blind crossover study in which patients will receive up to 50% nitrous oxide in oxygen or up to 50% oxygen in air for a period of one hour in addition to standard medical therapy. Depression severity will be assessed by a blinded observer pre-treatment, 30 minutes and 2 hours post treatment using the Hamilton depression rating scale.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesUnited States
Collaborators--

Timeline

Phase 2CompletedFinished
20132014201520162017201820192020202120222023202420252026
First PostedMay 15, 2014
Enrollment StartNov 1, 2012
Primary CompletionApr 1, 2015
TodayJul 2, 2026
Enrollment to primary: 2.4 yearsPosted 12.1 years ago

Interventions

Nitrous Oxidedrug

Patients will receive either up to 50% nitrous oxide/50% oxygen for 1 hour or "placebo" (50% nitrogen \[inert\]/50% oxygen) in two separate sessions. Both sessions will be 1 week apart.

Placebodrug

50% nitrogen \[inert\]/50% oxygen - otherwise completely identical administration and setup