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Could brief low-oxygen sessions help MS? small safety trial launches

NCT ID NCT07631143

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

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This early-stage study tests whether short periods of breathing low-oxygen air (called acute intermittent hypoxia) are safe and tolerable for people with multiple sclerosis. Nine participants at different disease stages will be closely monitored for side effects like low oxygen levels or heart rate changes. The goal is to gather initial safety data, not to treat the disease itself.

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

Phase 1/2

Runs two stages together: safety and dose first, then whether the treatment works.

Participants

About 9 people

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

Expected to start

Jul 2026

An estimate. Start dates often move.

Expected to finish

Aug 2028

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: \- Group 1: * People with a confirmed diagnosis of MS and advanced disability level (Expanded Disability Status Scale (EDSS) \>6.5 and \<9) * Without relapse for at least 90 days prior * Older than age 18 Group 2: * People with a confirmed diagnosis of relapsing remitting MS * Acute disabling relapse onset within the past 4 weeks. A disabling relapse will be defined as at least 1.0-point increase on the EDSS. * Older than age 18 Group 3: * People with a confirmed diagnosis of MS that is non-active and progressive (Primary or Secondary Progressive MS). Non-active will be defined as without MS relapse, new/enlarging or enhancing MRI lesions within the past 1 year. * EDSS \<=6.5 * Older than age 18 Exclusion Criteria: * Pregnancy * Any of the following documented respiratory disorders: obstructive sleep apnea, chronic obstructive pulmonary disease, uncontrolled asthma, hypoxic pulmonary disease, respiratory infection in the previous 3 months * Ischemic cardiac disease * Cardiac arrhythmia * Severe hypertension (\>160/100) * Seizure disorders * Medically unstable in another capacity * Unable to provide informed consent

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Conditions

The condition(s) this trial relates to.

multiple sclerosis

As listed by the trial registrant

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

Multiple sclerosis

How to take part

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

  1. 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 ↗

  2. A doctor treating you

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More trials for these conditions

Other studies related to the condition(s) this trial covers.