Intermittent Low Oxygen Breathing: A First Study Testing Different Disease Stages in People Living With MS (LOxyMS)
Intermittent Low Oxygen Breathing: A First Study Testing Different Disease Stages in People Living With Multiple Sclerosis
Studienübersicht
Status
Status
Bedingungen
Bedingungen
Intervention / Behandlung
Intervention / Behandlung
Detaillierte Beschreibung
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).
Studientyp
Studientyp
Einschreibung (Geschätzt)
Einschreibung
Phase
Phase
- Phase 2
- Phase 1
Kontakte und Standorte
Studienkontakt
Studienkontakt
- Name: Katherine B Knox, MD, FRPC
- Telefonnummer: 306-655-7742
- E-Mail: Katherine.knox@saskatoonhealthregion.ca
Studieren Sie die Kontaktsicherung
- Name: Sarah Donkers, PhD
- Telefonnummer: 306-966-3230
- E-Mail: sarah.donkers@usask.ca
Teilnahmekriterien
Zulassungskriterien
Zulassungskriterien
Studienberechtigtes Alter
- Erwachsene
- Älterer Erwachsener
Akzeptiert gesunde Freiwillige
Beschreibung
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
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Behandlung
- Zuteilung: N / A
- Interventionsmodell: Einzelgruppenzuweisung
- Maskierung: Keine (Offenes Etikett)
Anzahl der Arme
Waffen und Interventionen
Teilnehmergruppe / ArmTeilnehmergruppe / Arm |
Intervention / BehandlungIntervention / Behandlung |
|---|---|
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Experimental: Treatment
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).
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Was misst die Studie?
Primäre Ergebnismessungen
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
SpO2 < 78%, Heart rate < 50 beats per minute (bpm) or > 160 bpm
Zeitfenster: During the six AIH treatment session in weeks 1-4
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Number of episodes of each outcome
|
During the six AIH treatment session in weeks 1-4
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Sekundäre Ergebnismessungen
Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Worsening on a verbal response 9-Item subjective symptom checklist
Zeitfenster: 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.
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During the six AIH treatment sessions in weeks 1-4
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Functional testing 1: Nine-Hole Peg test
Zeitfenster: 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
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Functional testing 2: Symbol Digit Modalities Test
Zeitfenster: 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
Zeitfenster: Baseline, 1- and 5- weeks after the final AIH treatment session
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A test of gait
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Baseline, 1- and 5- weeks after the final AIH treatment session
|
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Patient Reported Symptom Outcomes 1: Multiple Sclerosis Impact Scale (MSIS-29)
Zeitfenster: Baseline, 1- and 5- weeks after the final AIH treatment session
|
An assessment of how MS impacts a person's function
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Baseline, 1- and 5- weeks after the final AIH treatment session
|
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Patient Reported Symptom Outcomes 2: Modified Fatigue Impact Scale
Zeitfenster: 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)
Zeitfenster: 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.
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Baseline, 1- and 5- weeks after the final AIH treatment session
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Mitarbeiter und Ermittler
Sponsor
Sponsor
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn (Geschätzt)
Studienbeginn
Primärer Abschluss (Geschätzt)
Primärer Abschluss
Studienabschluss (Geschätzt)
Studienabschluss
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Tatsächlich)
Zuerst gepostet
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes Update gepostet
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Schlüsselwörter
Zusätzliche relevante MeSH-Bedingungen
Andere Studien-ID-Nummern
Andere Studien-ID-Nummern
- Bio 4476
- LOxyMS USASK -0924 (Andere Kennung: University of Saskatchewan)
Plan für individuelle Teilnehmerdaten (IPD)
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Arzneimittel- und Geräteinformationen, Studienunterlagen
Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt
Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt
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