Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.

Clear filters
ClinicalTrials.gov public records Last synced Sep 26, 2026, 6:58 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Intervention: Hypoxia Exposure Clear all
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Effect of Acute Intermittent Hypoxia on Motor Learning

NCT05341466
View directory record Official record
Conditions
Incomplete Spinal Cord Injury
Interventions
Acute Intermittent Hypoxia, SHAM Acute Intermittent Hypoxia
Other
Lead sponsor
University of Colorado, Boulder
Other
Eligibility
18 Years to 70 Years
Enrollment
56 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
2
States / cities
Aurora, Colorado • Boulder, Colorado
Source: ClinicalTrials.gov public record
Updated May 13, 2025 · Synced Sep 26, 2026, 6:58 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 26, 2026, 6:58 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Healthy Little Eyes

NCT05971446
View directory record Official record
Conditions
Hypoxic-Ischemic Encephalopathy, Neonatal Encephalopathy, Encephalopathy
Interventions
Visual Evoked Potential (VEP), Electroretinogram (ERG)
Device
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
Up to 36 Months
Enrollment
125 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2029
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated May 13, 2026 · Synced Sep 26, 2026, 6:58 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 26, 2026, 6:58 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 26, 2026, 6:58 PM EDT
Completed Not applicable Interventional

Acute Intermittent Hypoxia to Improve Airway Protection in Chronic Traumatic Brain Injury

NCT06520358
View directory record Official record
Conditions
Traumatic Brain Injury
Interventions
Acute Intermittent Hypoxia (AIH), Task specific Airway Protection Training, Sham AIH
Other · Behavioral
Lead sponsor
University of Florida
Other
Eligibility
21 Years to 80 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Jan 8, 2026 · Synced Sep 26, 2026, 6:58 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Combined Therapeutic Air Mixture and Electrical Stimulation to Improve Breathing and Hand Function in Spinal Cord Injury

NCT06101199
View directory record Official record
Conditions
Cervical Spinal Cord Injury
Interventions
Acute Intermittent Hypercapnic Hypoxia, Transcutaneous spinal cord stimulation, SHAM Acute Intermittent Hypercapnic Hypoxia, SHAM Transcutaneous spinal cord stimulation
Other
Lead sponsor
Thomas Jefferson University
Other
Eligibility
18 Years to 65 Years
Enrollment
4 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 16, 2025 · Synced Sep 26, 2026, 6:58 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 26, 2026, 6:58 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Sex-related Differences in Sympathetic Vascular Transduction in the Setting of Hypoxemia

NCT05256069
View directory record Official record
Conditions
Vasodilation, Hypoxia
Interventions
Propranolol Pill, Placebo
Drug
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
18 Years to 45 Years
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Sep 14, 2025 · Synced Sep 26, 2026, 6:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Overnight Low Oxygen Exposure on Energy Balance

NCT04151927
View directory record Official record
Conditions
Resting Metabolic Rate, Appetite, Heart Rate Variability
Interventions
Normobaric Hypoxia, Normobaric Normoxia
Device
Lead sponsor
Florida State University
Other
Eligibility
20 Years to 45 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Tallahassee, Florida
Source: ClinicalTrials.gov public record
Updated Nov 28, 2021 · Synced Sep 26, 2026, 6:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Gut-microbiota Targeted Nutritional Intervention for Gut Barrier Integrity at High Altitude

NCT04111263
View directory record Official record
Conditions
Gastrointestinal Injury, Acute Mountain Sickness
Interventions
FP, Placebo, High altitude, Sea level
Dietary Supplement · Other
Lead sponsor
United States Army Research Institute of Environmental Medicine
Federal
Eligibility
17 Years to 39 Years
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Natick, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 22, 2022 · Synced Sep 26, 2026, 6:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effect of 2-Week Nightly Moderate Hypoxia on Glucose Tolerance in Individuals With Type 2 Diabetes

NCT02513641
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
Hypoxico Altitude Training Systems
Device
Lead sponsor
Pennington Biomedical Research Center
Other
Eligibility
20 Years to 65 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2020
U.S. locations
2
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Oct 11, 2020 · Synced Sep 26, 2026, 6:58 PM EDT
Recruiting Not applicable Interventional

Combination Therapy to Improve SCI Recovery.

NCT05563103
View directory record Official record
Conditions
Spinal Cord Injuries
Interventions
Daily acute intermittent hypoxia, Room air (SHAM), Walking + tSTIM, Walking + Sham transcutaneous spinal stimulation (tSHAM)
Other
Lead sponsor
Spaulding Rehabilitation Hospital
Other
Eligibility
18 Years to 70 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
2
States / cities
Chicago, Illinois • Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 19, 2026 · Synced Sep 26, 2026, 6:58 PM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

Treatment of Sleep Apnea in Patients With Cervical Spinal Cord Injury

NCT02922894
View directory record Official record
Conditions
Sleep Apnea, Spinal Cord Injury
Interventions
Acute episodic hypoxia, Supplemental oxygen, Trazodone, Placebo, Sham
Procedure · Drug
Lead sponsor
John D. Dingell VA Medical Center
Federal
Eligibility
18 Years to 89 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2027
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 30, 2026 · Synced Sep 26, 2026, 6:58 PM EDT
Recruiting Not applicable Interventional

IHT for Mild Cognitive Impairment

NCT05495087
View directory record Official record
Conditions
Mild Cognitive Impairment, Memory Impairment
Interventions
IHT Treatment, Sham-IHT Control
Device · Other
Lead sponsor
University of North Texas Health Science Center
Other
Eligibility
55 Years to 79 Years
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Fort Worth, Texas
Source: ClinicalTrials.gov public record
Updated Apr 28, 2026 · Synced Sep 26, 2026, 6:58 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 26, 2026, 6:58 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 26, 2026, 6:58 PM EDT
Recruiting Early Phase 1 Interventional Accepts healthy volunteers

Impact of Early Aging and Menopause on the Vascular Responses to Hypoxia

NCT06417177
View directory record Official record
Conditions
Aging, Menopause, Hypoxia, Vasodilation
Interventions
Placebo, Propranolol, Gemtesa
Drug
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
18 Years to 70 Years · Female only
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Sep 9, 2026 · Synced Sep 26, 2026, 6:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Mild Hypobaric Hypoxia on Sleep and Post-sleep Performance

NCT00498563
View directory record Official record
Conditions
Altitude, Hypoxia, Environmental Sleep Disorder
Interventions
altitude exposure in hypobaric chamber
Procedure
Lead sponsor
Oklahoma State University Center for Health Sciences
Other
Eligibility
30 Years to 60 Years · Male only
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
1
States / cities
Tulsa, Oklahoma
Source: ClinicalTrials.gov public record
Updated Apr 23, 2015 · Synced Sep 26, 2026, 6:58 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Acetazolamide and Exercise Performance at Altitude

NCT03525561
View directory record Official record
Conditions
Hypoxia, Exercise Performance, Cognitive Function, Dexterity
Interventions
Acetazolamide Pill, Placebo pill
Drug
Lead sponsor
United States Army Research Institute of Environmental Medicine
Federal
Eligibility
18 Years to 45 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Natick, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 4, 2019 · Synced Sep 26, 2026, 6:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Sex Differences in Reflex Responses to Intermittent Hypoxia

NCT03606434
View directory record Official record
Conditions
Healthy Participants
Interventions
Hypoxic exposure
Other
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
18 Years to 45 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 20, 2021 · Synced Sep 26, 2026, 6:58 PM EDT
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 26, 2026, 6:58 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Low Oxygen Exposure and Weight Status

NCT05289310
View directory record Official record
Conditions
Obesity
Interventions
Normobaric hypoxia (NH), Normobaric normoxia (NN)
Other
Lead sponsor
Pennington Biomedical Research Center
Other
Eligibility
22 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Jul 15, 2026 · Synced Sep 26, 2026, 6:58 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effect of High Levels of Oxygen and Smoking on the Lungs in Human Volunteers

NCT00001464
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years to 65 Years
Enrollment
77 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1995 – 2007
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 26, 2021 · Synced Sep 26, 2026, 6:58 PM EDT