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Could laughing gas replace opioids for burn victims?

NCT ID NCT03695887

Symptom relief Sponsor: University of Manitoba Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This early-phase trial tests whether disposable nitrous oxide (laughing gas) canisters can reduce pain and anxiety during burn dressing changes. Thirty adult burn patients will try both the gas and a placebo in random order. The goal is to see if this offers a safer alternative to high-dose narcotics.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Nitrous oxide (laughing gas)
What this could lead to
If it works, this could offer a safer, non-narcotic option for managing intense pain during burn dressing changes.
What could go wrong
This is a very early, small pilot study (30 people). It may not show a clear benefit, and nitrous oxide can cause side effects like nausea or dizziness.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Early phase 1

The earliest testing in people: a first look at safety, in a very small group.

Participants

About 30 people

The number the study aims to enrol. It can still change while the study runs.

Started

Oct 2019

Expected to finish

Dec 2029

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion criteria * adult burn patients admitted to the Health Sciences Centre * total body surface area burned of 5-20% Exclusion criteria * admitted to intensive care unit * unable to participate in the measurement outcomes (sedated, cognitively impaired, unable to understand English or visually impaired) * medical condition that precludes using nitrous oxide (respiratory disease and significant cardiovascular disease 5). * pregnant * physically unable to hold the canister * \<90% SaO2 on room air * face burn * pre-injury narcotics (relative exclusion) * use of IV ketamine * pre-existing lung injury

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Conditions

The condition(s) this trial relates to.

Acute Pain burn Pain

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Burns Pain, acute

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • University of Manitoba

    RECRUITING

    Winnipeg, Manitoba, R3A 1R9, Canada

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