- Conditions
- Respiratory; Disorder, Functional, Impaired, Respiratory Infection Other
- Interventions
- Education (Tx1), Air Filtration Unit Treatment (Tx2), Placebo Intervention (Tx3)
- Behavioral · Device
- Lead sponsor
- University of Montana
- Other
- Eligibility
- 55 Years and older
- Enrollment
- 149 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2015 – 2021
- U.S. locations
- 1
- States / cities
- Missoula, Montana
Search Results
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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.
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Showing 1–24
of 34
matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
- Conditions
- Migraine
- Interventions
- Oxygen, Room air
- Biological
- Lead sponsor
- Massachusetts General Hospital
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 22 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2012 – 2015
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Cannabis
- Interventions
- Delta-9-THC, Delta-8-THC, Placebo
- Drug
- Lead sponsor
- Johns Hopkins University
- Other
- Eligibility
- 18 Years to 55 Years
- Enrollment
- 30 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2024 – 2025
- U.S. locations
- 1
- States / cities
- Baltimore, Maryland
- Conditions
- Asthma
- Interventions
- Active Air Purifier, Placebo Air Purifier
- Device
- Lead sponsor
- Johns Hopkins University
- Other
- Eligibility
- 8 Years to 17 Years
- Enrollment
- 198 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2016 – 2027
- U.S. locations
- 1
- States / cities
- Baltimore, Maryland
- Conditions
- Hypoxia, Altitude
- Interventions
- Cetirizine, Placebo oral capsule, Hypoxia
- Drug · Other
- Lead sponsor
- Indiana University
- Other
- Eligibility
- 18 Years to 35 Years
- Enrollment
- 13 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2017 – 2018
- U.S. locations
- 1
- States / cities
- Bloomington, Indiana
- 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
- Conditions
- OSA, Sleep Apnea, Obstructive Sleep Apnea, Alzheimer Disease
- Interventions
- Supplemental Oxygen, Continuous Positive Airway Pressure Machine, Room Air
- Other · Device
- Lead sponsor
- University of California, San Diego
- Other
- Eligibility
- 65 Years to 85 Years
- Enrollment
- 182 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2025
- U.S. locations
- 1
- States / cities
- La Jolla, California
- Conditions
- Sleep Apnea, Glucose Metabolism Disorders
- Interventions
- Positive Airway Pressure, Supplemental Oxygen, Sham
- Procedure
- Lead sponsor
- University of Missouri-Columbia
- Other
- Eligibility
- 30 Years to 70 Years
- Enrollment
- 80 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2018 – 2028
- U.S. locations
- 1
- States / cities
- St Louis, Missouri
- Conditions
- Idiopathic Pulmonary Fibrosis
- Interventions
- inhaled carbon monoxide, Oxygen
- Drug · Other
- Lead sponsor
- Brigham and Women's Hospital
- Other
- Eligibility
- 18 Years to 85 Years
- Enrollment
- 58 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2015
- U.S. locations
- 8
- States / cities
- San Francisco, California • Chicago, Illinois • New Orleans, Louisiana + 4 more
- Conditions
- Altitude Hypoxia, Ventilation, Sleep, Oxidative Stress, Neurocognitive Dysfunction
- Interventions
- Melatonin, Hypoxia
- Dietary Supplement · Other
- Lead sponsor
- University of California, San Diego
- Other
- Eligibility
- 18 Years to 65 Years
- Enrollment
- 20 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2017 – 2018
- U.S. locations
- 1
- States / cities
- San Diego, California
- 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
- Conditions
- Chronic Obstructive Pulmonary Disease
- Interventions
- HEPAirX air filter, control air filter
- Device
- Lead sponsor
- University of Rochester
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 9 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2021
- U.S. locations
- 1
- States / cities
- Rochester, New York
- Conditions
- Traumatic Brain Injury, Military Operations
- Interventions
- Oxygen 99.7 %, Oxygen 21 %
- Drug
- Lead sponsor
- University of South Florida
- Other
- Eligibility
- 18 Years to 75 Years
- Enrollment
- 420 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2024 – 2029
- U.S. locations
- 1
- States / cities
- Tampa, Florida
- Conditions
- Obsessive-Compulsive Disorder
- Interventions
- Xenon, Placebo
- Drug
- Lead sponsor
- Mclean Hospital
- Other
- Eligibility
- 18 Years to 55 Years
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2013 – 2014
- U.S. locations
- 1
- States / cities
- Belmont, Massachusetts
- Conditions
- Overactive Bladder, Neurogenic Bladder, Urge Incontinence, Pain, Urinary Incontinence, Urinary Bladder, Overactive, Urinary Bladder, Neurogenic, Urinary Bladder Neurogenesis, Urinary Incontinence, Urge, Pelvic Floor Disorders
- Interventions
- Pro-Nox Nitrous Oxide/Oxygen Delivery System, Standard Care for Bladder Botox Injection, Sham Mask
- Drug · Other
- Lead sponsor
- TriHealth Inc.
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 96 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026
- U.S. locations
- 2
- States / cities
- Cincinnati, Ohio
- Conditions
- Upper Airway Obstruction
- Interventions
- Physostigmine, Oxygen, Placebo
- Drug
- Lead sponsor
- University of Rochester
- Other
- Eligibility
- 18 Years to 45 Years · Male only
- Enrollment
- 10 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2009 – 2011
- U.S. locations
- 1
- States / cities
- Rochester, New York
- Conditions
- Sleep Apnea, Opioid Use, Sleep Disordered Breathing
- Interventions
- Hyperoxia, Acetazolamide
- Other · Drug
- Lead sponsor
- VA Office of Research and Development
- Federal
- Eligibility
- 18 Years to 89 Years
- Enrollment
- 150 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2019 – 2027
- U.S. locations
- 1
- States / cities
- Detroit, Michigan
- 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
- Conditions
- Asthma Control, Pulmonary Function, Quality of Life, Stress, Sleep Quality
- Interventions
- Energy Recovery Ventilator, Portable Air Cleaner, Energy Recovery Ventilator (Sham), Portable Air Cleaner (Sham)
- Device
- Lead sponsor
- The University of Texas at Arlington
- Other
- Eligibility
- 5 Years and older
- Enrollment
- 80 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2025 – 2028
- U.S. locations
- 2
- States / cities
- Arlington, Texas • Plano, Texas
- 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
- Conditions
- Venous Leg Ulcer (VLU)
- Interventions
- Topical Wound Oxygen Therapy, Sham Control Topical Wound Oxygen
- Device
- Lead sponsor
- AOTI Ltd.
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 212 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2025 – 2028
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Sleep Apnea, Elderly Adults
- Interventions
- Hyperoxia/oxygen, Acetazolamide, Finasteride
- Other · Drug
- Lead sponsor
- VA Office of Research and Development
- Federal
- Eligibility
- 60 Years to 89 Years
- Enrollment
- 100 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2015 – 2027
- U.S. locations
- 1
- States / cities
- Detroit, Michigan
- Conditions
- Intermittent Hypoxia
- Interventions
- Melatonin, Placebo
- Other
- Lead sponsor
- Robert L. Owens
- Other
- Eligibility
- 18 Years to 65 Years
- Enrollment
- 39 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2018
- U.S. locations
- 1
- States / cities
- San Diego, California
- Conditions
- Sleep Disordered Breathing, Able Bodied
- Interventions
- Trazodone + PAP therapy, Oxygen + PAP therapy
- Drug
- Lead sponsor
- VA Office of Research and Development
- Federal
- Eligibility
- 18 Years and older
- Enrollment
- 200 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2026 – 2030
- U.S. locations
- 1
- States / cities
- Detroit, Michigan