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Showing 1–24 of 52 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Acute Intermittent Hypoxia Clear all
Recruiting Not applicable Interventional

Non-Invasive Interventions for Respiratory Recovery in Chronic Spinal Cord Injury

NCT07135583
View directory record Official record
Conditions
Spinal Cord Injury, Chronic, Spinal Cord Injury Cervical, Spinal Cord Injury Thoracic, Incomplete Spinal Cord Injury
Interventions
Active Comparator: Single Intervention 1, Active Comparator: Single Intervention 2, Respiratory Resistance Exercise
Other · Behavioral
Lead sponsor
Thomas Jefferson University
Other
Eligibility
18 Years to 70 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 4, 2026 · Synced Sep 21, 2026, 1:18 PM EDT
Recruiting Not applicable Interventional

Non-invasive Treatment for Long COVID (Post COVID-19 Condition) Brain Fog

NCT06614309
View directory record Official record
Conditions
Long COVID
Interventions
Acute Placebo Visit, Acute Progressive Carbon Dioxide, Acute Intermittent Hypoxia, Training: Progressive Carbon Dioxide Ramping, Training: Intermittent Hypoxic Exposure, Training: Placebo Control
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Scottsdale, Arizona
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Sep 21, 2026, 1:18 PM EDT
Completed Not applicable Interventional Results available

American Heart Association- Stroke/Hypoxia Study

NCT04019522
View directory record Official record
Conditions
Stroke
Interventions
Acute Intermittent Hypoxia (AIH)
Other
Lead sponsor
Shirley Ryan AbilityLab
Other
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 6, 2026 · Synced Sep 21, 2026, 1:18 PM EDT
Not listed Not applicable Interventional

Daily Intermittent Hypoxia and Task-Specific Upper Limb Training in Persons With Chronic Incomplete SCI

NCT03262766
View directory record Official record
Conditions
Spinal Cord Injuries
Interventions
Acute Intermittent Hypoxia (AIH), Upper extremity training, Sham Acute intermittent hypoxia
Other · Behavioral
Lead sponsor
Shirley Ryan AbilityLab
Other
Eligibility
18 Years to 70 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 18, 2020 · Synced Sep 21, 2026, 1:18 PM EDT
Terminated Early Phase 1 Interventional Accepts healthy volunteers

AIH for Spinal Cord Repair

NCT03780829
View directory record Official record
Conditions
SCI
Interventions
hypoxia, sham hypoxia, D-cycloserine, sham-NMDA agonist, exercise training
Behavioral · Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 85 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2026
U.S. locations
1
States / cities
Hines, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 26, 2026 · Synced Sep 21, 2026, 1:18 PM EDT
Not yet recruiting Phase 1Phase 2 Interventional

Combining Low Oxygen Therapy and an Adenosine A2a Receptor Antagonist to Improve Functional Mobility After Spinal Cord Injury

NCT05217498
View directory record Official record
Conditions
Spinal Cord Injuries, Myelopathy
Interventions
Istradefylline, low oxygen therapy
Drug · Device
Lead sponsor
Randy Trumbower, PT, PhD
Other
Eligibility
18 Years to 75 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2027 – 2028
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 19, 2026 · Synced Sep 21, 2026, 1:18 PM EDT
Active, not recruiting Not applicable Interventional

AIH-induced Walking Recovery After Subacute SCI

NCT02632422
View directory record Official record
Conditions
Spinal Cord Injury
Interventions
Daily acute intermittent hypoxia (dAIH), dSHAM, Walking
Other
Lead sponsor
Spaulding Rehabilitation Hospital
Other
Eligibility
18 Years to 70 Years
Enrollment
125 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2027
U.S. locations
2
States / cities
Atlanta, Georgia • Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 7, 2026 · Synced Sep 21, 2026, 1:18 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Intermittent Hypoxia Elicits Prolonged Restoration of Motor Function in Human SCI

NCT01272349
View directory record Official record
Conditions
Spinal Cord Injury
Interventions
Acute intermittent hypoxia, Room air
Other
Lead sponsor
Emory University
Other
Eligibility
18 Years to 65 Years
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
2
States / cities
Atlanta, Georgia • Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Nov 20, 2013 · Synced Sep 21, 2026, 1:18 PM EDT
Recruiting Not applicable Interventional

Cross-System Effects of Acute Intermittent Hypercapnia-Based Interventions in PD

NCT07674264
View directory record Official record
Conditions
Parkinson Disease, Parkinsonism
Interventions
Acute intermittent hypercapnic hypoxia (AIHH), Acute intermittent hypercapnic normoxia (AIHN)
Other
Lead sponsor
University of Florida
Other
Eligibility
40 Years to 75 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
2
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Aug 20, 2026 · Synced Sep 21, 2026, 1:18 PM EDT
Recruiting Not applicable Interventional

Effects of Acute Intermittent Hypoxia on Neuroplasticity in MS

NCT06390930
View directory record Official record
Conditions
Multiple Sclerosis, Multiple Sclerosis, Relapsing-Remitting, Multiple Sclerosis, Secondary Progressive
Interventions
Acute Intermittent Hypoxia, Sham Acute Intermittent Hypoxia
Other
Lead sponsor
Shirley Ryan AbilityLab
Other
Eligibility
18 Years to 75 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 22, 2026 · Synced Sep 21, 2026, 1:18 PM EDT
Completed Not applicable Interventional

Intermittent Hypoxia Paired with High Intensity Training in Brain Injury

NCT04472442
View directory record Official record
Conditions
Brain Injuries
Interventions
Intermittent hypoxia, Sham hypoxia
Procedure
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 85 Years
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Oct 16, 2024 · Synced Sep 21, 2026, 1:18 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Repetitive Acute Intermittent Hypoxia for Spinal Cord Repair

NCT03433599
View directory record Official record
Conditions
Spinal Cord Injuries
Interventions
Repeated exposure to acute Intermittent Hypoxia (rAIH), Normal Room Air, Upper-limb Training by Research Staff, Lower-limb Training by Research Staff
Other
Lead sponsor
Shirley Ryan AbilityLab
Other
Eligibility
18 Years to 85 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2025
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 29, 2022 · Synced Sep 21, 2026, 1:18 PM EDT
Completed Not applicable Interventional Results available

Intermittent Hypoxia to Enhance Motor Function After Spinal Cord Injury

NCT03071393
View directory record Official record
Conditions
Spinal Cord Injuries
Interventions
Hypoxia via Hypoxico Hyp-123, Sham via Hypoxico Hyp-123
Device
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 65 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
2
States / cities
Gainesville, Florida • Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Nov 17, 2023 · Synced Sep 21, 2026, 1:18 PM EDT
Recruiting Not applicable Interventional

Intermittent Hypoxia in Persons With Multiple Sclerosis

NCT06276634
View directory record Official record
Conditions
Multiple Sclerosis, Multiple Sclerosis-Relapsing-Remitting, Multiple Sclerosis, Secondary Progressive
Interventions
Acute Intermittent Hypoxia, Sham-Acute Intermittent Hypoxia
Other
Lead sponsor
Shirley Ryan AbilityLab
Other
Eligibility
18 Years to 75 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 19, 2026 · Synced Sep 21, 2026, 1:18 PM EDT
Completed Not applicable Interventional

FLO2 for Recovery After SCI

NCT03833674
View directory record Official record
Conditions
Spinal Cord Injury (SCI)
Interventions
Daily AIH Block, Sham dAIH Block, Respiratory Strength Training Block, AIH + Strength Training Block
Other
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 70 Years
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated May 28, 2024 · Synced Sep 21, 2026, 1:18 PM EDT
Completed Not applicable Interventional

Acute Intermittent Hypoxia in Persons With Multiple Sclerosis

NCT04280484
View directory record Official record
Conditions
Multiple Sclerosis, Relapsing-Remitting
Interventions
Intermittent Hypoxia, Sham Hypoxia
Other
Lead sponsor
Shirley Ryan AbilityLab
Other
Eligibility
18 Years to 75 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 23, 2020 · Synced Sep 21, 2026, 1:18 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

The Synergistic Effects of AIH and FES in Persons With MS

NCT06413602
View directory record Official record
Conditions
Multiple Sclerosis, Multiple Sclerosis, Relapsing-Remitting, Multiple Sclerosis, Secondary Progressive
Interventions
Acute Intermittent Hypoxia, Neuromuscular Electrical Stimulation
Other
Lead sponsor
Shirley Ryan AbilityLab
Other
Eligibility
18 Years to 75 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 22, 2026 · Synced Sep 21, 2026, 1:18 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Improving Human Cerebrovascular Function Using Acute Intermittent Hypoxia

NCT05164705
View directory record Official record
Conditions
Healthy Brain Perfusion
Interventions
Acute Intermittent Hypoxia, Sham Acute Intermittent Hypoxia
Other
Lead sponsor
Northwestern University
Other
Eligibility
21 Years to 50 Years
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 19, 2026 · Synced Sep 21, 2026, 1:18 PM EDT
Recruiting Not applicable Interventional

Hypoxia Pathways for Early Recovery After Spinal Cord Injury

NCT07002437
View directory record Official record
Conditions
Spinal Cord Injuries (SCI)
Interventions
Augmented Acute Intermittent Hypoxia (aAIH), Acute Intermittent Hypercapnic-Hypoxia (AIHH), Sham AIH
Other
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 70 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Dec 2, 2025 · Synced Sep 21, 2026, 1:18 PM EDT
Completed Not applicable Interventional Results available

SCI Acute Intermittent Hypoxia and Non-Invasive Spinal Stimulation Combined With Gait Training

NCT03922802
View directory record Official record
Conditions
Spinal Cord Injuries, Spinal Cord Diseases
Interventions
Acute Intermittent Hypoxia + Non Invasive Spinal Cord Stimulation + Gait Training, Sham Acute Intermittent Hypoxia + Non Invasive Spinal Cord Stimulation + Gait Training, Sham Acute Intermittent Hypoxia + Sham Non Invasive Spinal Cord Stimulation + Gait Training
Device · Other
Lead sponsor
Shirley Ryan AbilityLab
Other
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jan 12, 2026 · Synced Sep 21, 2026, 1:18 PM EDT
Active, not recruiting Not applicable Interventional

Acute Intermittent Hypoxia on Leg Function Following Spinal Cord Injury

NCT02274116
View directory record Official record
Conditions
Spinal Cord Injuries
Interventions
SHAM - Intermittent Room Air - room air mixture, AIH - Intermittent Hypoxia - hypoxia air mixture
Other
Lead sponsor
Spaulding Rehabilitation Hospital
Other
Eligibility
18 Years to 75 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2027
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 19, 2026 · Synced Sep 21, 2026, 1:18 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study Effects of Intermittent Hypoxia on Restoring Hand Function Following SCI

NCT01272336
View directory record Official record
Conditions
Spinal Cord Injury
Interventions
Acute Intermittent Hypoxia (AIH), SHAM-Intermittent Room Air
Drug · Other
Lead sponsor
Emory University
Other
Eligibility
18 Years to 65 Years
Enrollment
53 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2015
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jan 25, 2016 · Synced Sep 21, 2026, 1:18 PM EDT
Completed Not applicable Interventional

Motor Plasticity, Intermittent Hypoxia and Sleep Apnea

NCT04017767
View directory record Official record
Conditions
Sleep Apnea, Obstructive, Spinal Cord Injuries, Hypoxia
Interventions
Induced Acute Intermittent Hypoxia (AIH), AIH mask
Procedure · Device
Lead sponsor
University of Miami
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Sep 7, 2025 · Synced Sep 21, 2026, 1:18 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Effects of Caffeine and Intermittent Hypoxia on Leg Function in Human Spinal Cord Injury

NCT02323698
View directory record Official record
Conditions
Spinal Cord Injuries
Interventions
Caffeine, AIH, Placebo, SHAM
Drug · Other
Lead sponsor
Spaulding Rehabilitation Hospital
Other
Eligibility
18 Years to 75 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 12, 2023 · Synced Sep 21, 2026, 1:18 PM EDT