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Intermittent Low Oxygen Breathing: A First Study Testing Different Disease Stages in People Living With MS (LOxyMS)

2. juni 2026 opdateret af: Katherine Knox, University of Saskatchewan

Intermittent Low Oxygen Breathing: A First Study Testing Different Disease Stages in People Living With Multiple Sclerosis

This study will look at the safety, tolerability and feasibility of a non-invasive treatment called Acute Intermittent Hypoxia (AIH) in people with Multiple Sclerosis (MS) at different stages of the disease course.

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

AIH is a treatment where people breathe reduced amounts of oxygen (10% oxygen) for a short period of time alternating with normal oxygen levels (21%) through a facemask that is attached to an oxygen tank with 10% 02. Participants will undergo 6 AIH treatment sessions over 3-4 weeks.

AIH will be administered to 3 unique groups of people: 1) People with advanced MS disability who are no longer ambulatory, 2) People who experienced a disabling relapse within the past 4 weeks and 3) People with non-active, progressive MS who retain some ambulatory ability.

There will be one baseline and two post-treatment assessments (1 and 5 weeks following the last AIH session).

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

9

Fase

  • Fase 2
  • Fase 1

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Undersøgelse Kontakt Backup

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

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Ingen

Beskrivelse

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

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: N/A
  • Interventionel model: Enkelt gruppeopgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Treatment
Acute Intermittent Hypoxia
Andet: Acute Intermittent Hypoxia
Hypoxia (10% O2) will be administered via a non-rebreather face mask connected to an oxygen tank supplying the 10% O2. Each session will involve 15 cycles of hypoxia, each lasting 90 seconds, interspersed with 60 second cycles of normoxia. The total duration of each session will be approximately 37 minutes. An inline oxygen analyzer will allow recording of the percentage of oxygen being delivered. A fingertip pulse-oximeter will be worn throughout to ensure that oxygen saturation (SpO2) falls to a nadir between 80 - 87% during hypoxic episodes and heart rate monitoring will be performed. Blood pressure will be checked prior to and following each session (within 5 minutes of treatment cessation).

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
SpO2 < 78%, Heart rate < 50 beats per minute (bpm) or > 160 bpm
Tidsramme: During the six AIH treatment session in weeks 1-4
Number of episodes of each outcome
During the six AIH treatment session in weeks 1-4

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Worsening on a verbal response 9-Item subjective symptom checklist
Tidsramme: During the six AIH treatment sessions in weeks 1-4
Symptom checklist to be administered during AIH treatments. Includes the following: Chest pain, shortness of breath, lightheadedness, neck pain, dizziness, arm pain (left side for cardiac symptoms), sweatiness/feeling warm, sensory changes and increased weakness.
During the six AIH treatment sessions in weeks 1-4
Functional testing 1: Nine-Hole Peg test
Tidsramme: Baseline, 1- and 5- weeks after the final AIH treatment session
A test of hand function and dexterity
Baseline, 1- and 5- weeks after the final AIH treatment session
Functional testing 2: Symbol Digit Modalities Test
Tidsramme: Baseline, 1- and 5- weeks after the final AIH treatment session
A cognitive test of processing speed
Baseline, 1- and 5- weeks after the final AIH treatment session
Functional testing 3: Timed 25-Foot walk test
Tidsramme: Baseline, 1- and 5- weeks after the final AIH treatment session
A test of gait
Baseline, 1- and 5- weeks after the final AIH treatment session
Patient Reported Symptom Outcomes 1: Multiple Sclerosis Impact Scale (MSIS-29)
Tidsramme: Baseline, 1- and 5- weeks after the final AIH treatment session
An assessment of how MS impacts a person's function
Baseline, 1- and 5- weeks after the final AIH treatment session
Patient Reported Symptom Outcomes 2: Modified Fatigue Impact Scale
Tidsramme: Baseline, 1- and 5- weeks after the final AIH treatment session
An assessment of how fatigue impacts a person's function
Baseline, 1- and 5- weeks after the final AIH treatment session
Transcranial Magnetic Stimulation (TMS)
Tidsramme: Baseline, 1- and 5- weeks after the final AIH treatment session
TMS uses a magnetic coil placed over the scalp to stimulate cortical neurons on the surface of the brain to elicit a motor evoked potential (MEP). The amount of stimulator output required to obtain a MEP is an indicator of the level of excitability of the neurons; lower threshold indicating greater excitability AIH may decrease inhibition and increase excitation; mechanisms necessary when recovering from neurological injuries.
Baseline, 1- and 5- weeks after the final AIH treatment session

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

University of Saskatchewan

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Anslået)

1. juli 2026

Primær færdiggørelse (Anslået)

1. august 2028

Studieafslutning (Anslået)

1. august 2028

Datoer for studieregistrering

Først indsendt

13. maj 2026

Først indsendt, der opfyldte QC-kriterier

2. juni 2026

Først opslået (Faktiske)

5. juni 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

5. juni 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

2. juni 2026

Sidst verificeret

1. juni 2026

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • Bio 4476
  • LOxyMS USASK -0924 (Anden identifikator: University of Saskatchewan)

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Kliniske forsøg med Multipel sclerose

Kliniske forsøg med Acute Intermittent Hypoxia

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