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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Room air Clear all
Completed Not applicable Interventional

Home Air Filtration for Traffic-Related Air Pollution

NCT04279249
View directory record Official record
Conditions
Cardiovascular Risk Factor, Blood Pressure
Interventions
HEPA Air Filtration, Sham HEPA Air Filtration
Other
Lead sponsor
UConn Health
Other
Eligibility
30 Years and older
Enrollment
156 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
Farmington, Connecticut
Source: ClinicalTrials.gov public record
Updated Oct 31, 2024 · Synced Sep 24, 2026, 5:34 AM EDT
Completed Not applicable Interventional

A Community-based Participatory Research (CBPR) Intervention for Childhood Asthma Using Air Filters and Air Conditioners

NCT00839046
View directory record Official record
Conditions
Childhood Asthma
Interventions
Community Health Worker Intervention, Air Filter, Air Filter and Air Conditioner
Behavioral · Other
Lead sponsor
University of Michigan
Other
Eligibility
6 Years to 12 Years
Enrollment
126 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 23, 2017 · Synced Sep 24, 2026, 5:34 AM EDT
Completed Not applicable Interventional

A Randomized Controlled Trial (RCT) of Carbon Dioxide Versus Air Insufflation During Endoscopic Retrograde Cholangiopancreatography (ERCP)

NCT00685386
View directory record Official record
Conditions
Cholestasis
Interventions
CO2 insufflation, Room air insufflation
Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older
Enrollment
74 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 23, 2013 · Synced Sep 24, 2026, 5:34 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Intermittent Hypoxia and Balance Control

NCT05463042
View directory record Official record
Conditions
Intermittent Hypoxia, Normoxia
Interventions
Intermittent Hypoxia, Normoxia (sham)
Behavioral
Lead sponsor
University of Texas at Austin
Other
Eligibility
18 Years to 80 Years
Enrollment
3 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Nov 28, 2023 · Synced Sep 24, 2026, 5:34 AM EDT
Enrolling by invitation No phase listed Observational Accepts healthy volunteers

Modification of Ambient Air Pollution Exposure and Cardiopulmonary Outcomes by Socioeconomic Status and Nutrition

NCT05843370
View directory record Official record
Conditions
Air Pollution, Pollution; Exposure, Nutrition, Healthy
Interventions
Not listed
Lead sponsor
Environmental Protection Agency (EPA)
Federal
Eligibility
25 Years to 70 Years
Enrollment
82 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 19, 2024 · Synced Sep 24, 2026, 5:34 AM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

The Role of Heliox in Respiratory Control

NCT07424014
View directory record Official record
Conditions
Work of Breathing
Interventions
Heliox inspirate
Drug
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 40 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Bloomington, Indiana
Source: ClinicalTrials.gov public record
Updated Mar 11, 2026 · Synced Sep 24, 2026, 5:34 AM EDT
Recruiting Not applicable Interventional

Mild Intermittent Hypoxia: A Prophylactic for Autonomic Dysfunction in Individuals With Spinal Cord Injuries

NCT05351827
View directory record Official record
Conditions
Spinal Cord Injuries, Autonomic Dysreflexia
Interventions
Mild Intermittent Hypoxia, Sham
Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 60 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Aug 13, 2026 · Synced Sep 24, 2026, 5:34 AM EDT
Completed Not applicable Interventional

Intermittent Hypoxia and Upper Extremity EMG Recordings in Individuals With Spinal Cord Injury

NCT05513911
View directory record Official record
Conditions
Spinal Cord Injuries
Interventions
Acute Intermittent Hypoxia
Other
Lead sponsor
Shirley Ryan AbilityLab
Other
Eligibility
18 Years to 70 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 23, 2022 · Synced Sep 24, 2026, 5:34 AM 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 24, 2026, 5:34 AM EDT
Completed Not applicable Interventional

Study to Warm Up and Cool Down Recreationally Active Males Using Different Protocols.

NCT06874023
View directory record Official record
Conditions
Heat Acclimation and Thermotolerance
Interventions
Passive heating in hot conditions, Active heating + passive heating in hot conditions, Active heating in hot conditions, Active heating at room temperature, Cool vest, Damp neck towel combined with arm cool water immersion, Combination of cooling interventions, Control in thermoneutral room without cooling
Other
Lead sponsor
Arizona State University
Other
Eligibility
18 Years to 30 Years · Male only
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Mar 12, 2025 · Synced Sep 24, 2026, 5:34 AM EDT
Not yet recruiting Phase 4 Interventional Accepts healthy volunteers

Central Apnea in Heart Failure: Physiological Mechanisms to Inform Treatment

NCT07210606
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jan 6, 2026 · Synced Sep 24, 2026, 5:34 AM EDT
Withdrawn Not applicable Interventional

Comparison of Supportive Therapies for Symptom Relief From Pediatric Upper Respiratory Infections (URIs)

NCT01814293
View directory record Official record
Conditions
Acute Upper Respiratory Infection, Signs and Symptoms
Interventions
Handheld humidifier
Device
Lead sponsor
University of California, San Francisco
Other
Eligibility
Up to 18 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated May 14, 2015 · Synced Sep 24, 2026, 5:34 AM EDT
Recruiting Early Phase 1 Interventional

Hyperbaric Oxygen Therapy and Allogeneic Peripheral Blood Stem Cell (PBSC) Transplant

NCT03964506
View directory record Official record
Conditions
Acute Myeloid Leukemia, Myelodysplastic Syndromes, Chronic Myelomonocytic Leukemia, Atypical Chronic Myeloid Leukemia, Chronic Monocytic Leukemia, Myelofibrosis, Myelodysplastic/Myeloproliferative Neoplasm
Interventions
Hyperbaric oxygen
Drug
Lead sponsor
Omar Aljitawi
Other
Eligibility
18 Years to 75 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2028
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Jun 2, 2026 · Synced Sep 24, 2026, 5:34 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effects of the Breathe Technologies Ventilation System in Subjects With Chronic Obstructive Pulmonary Disease

NCT01372462
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease
Interventions
NIOV - Room Air, NIOV - Oxygen, Nasal Cannula Oxygen
Device
Lead sponsor
Breathe Technologies, Inc.
Industry
Eligibility
40 Years and older · Male only
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Torrance, California
Source: ClinicalTrials.gov public record
Updated Oct 11, 2016 · Synced Sep 24, 2026, 5:34 AM EDT
Completed Phase 2 Interventional Results available

68Ga-DOTATATE PET Scan in Neuroendocrine Cancer

NCT01396382
View directory record Official record
Conditions
Neuroendocrine Carcinoma
Interventions
68Ga-DOTATATE PET scan
Radiation
Lead sponsor
Vanderbilt-Ingram Cancer Center
Other
Eligibility
18 Years and older
Enrollment
97 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Mar 28, 2016 · Synced Sep 24, 2026, 5:34 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of a Single Session of Intermittent Hypoxia on Hematological Variables

NCT05898685
View directory record Official record
Conditions
Intermittent Hypoxia
Interventions
Intermittent hypoxia, Intermittent normoxia
Behavioral
Lead sponsor
University of Texas at Austin
Other
Eligibility
18 Years to 80 Years
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jun 11, 2023 · Synced Sep 24, 2026, 5:34 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Quantifying Oxygen Utilization of Tumors Using Oxygen-Enhanced Molecular MRI

NCT04460495
View directory record Official record
Conditions
Malignant Brain Neoplasm
Interventions
Arterial Spin Labeling Magnetic Resonance Imaging, pH-Weighted amine CEST, Oxygen-weighted SAGE-EPI
Procedure
Lead sponsor
Jonsson Comprehensive Cancer Center
Other
Eligibility
Not listed
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated May 9, 2022 · Synced Sep 24, 2026, 5:34 AM EDT
Recruiting Not applicable Interventional

Normobaric Oxygen Therapy for Individuals With First-Episode Psychosis

NCT04368039
View directory record Official record
Conditions
Psychosis, Schizophrenia, First-episode Psychosis
Interventions
Normobaric Oxygen, Placebo
Device
Lead sponsor
Nicholas Breitborde
Other
Eligibility
15 Years to 35 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 24, 2026 · Synced Sep 24, 2026, 5:34 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Effects of Continuous Positive Airway Pressure on Peripheral Oxygen Saturation, Work of Breathing, and Exercise Tolerance at Altitude

NCT05971290
View directory record Official record
Conditions
Hypoxemia, Altitude Hypoxia
Interventions
Continuous positive airway pressure, Ambient air
Device
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 70 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Aug 1, 2023 · Synced Sep 24, 2026, 5:34 AM EDT
Active, not recruiting Not applicable Interventional

Assessing Upper Extremity Function in Chronic Stroke Survivors Through Acute Intermittent Hypoxia

NCT07113457
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
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 19, 2026 · Synced Sep 24, 2026, 5:34 AM EDT
Completed Not applicable Interventional

Mi-Helper Transnasal Cooling for Acute Treatment of Migraine

NCT06051604
View directory record Official record
Conditions
Episodic Migraine, Migraine With Aura, Migraine Without Aura, Migraine
Interventions
Mi-Helper
Device
Lead sponsor
CoolTech LLC
Industry
Eligibility
18 Years to 65 Years
Enrollment
172 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 25, 2024 · Synced Sep 24, 2026, 5:34 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Hemodynamics Response to Upper Airway Obstruction in Marfan Syndrome

NCT03985657
View directory record Official record
Conditions
Sleep-disordered Breathing, Snoring
Interventions
CPAP
Device
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 27, 2020 · Synced Sep 24, 2026, 5:34 AM EDT
Terminated No phase listed Observational

EPR Tumor Oximetry With CE India Ink

NCT03321903
View directory record Official record
Conditions
Neoplasms, Malignant, Breast Neoplasm, Carcinoma, Basal Cell, Carcinoma, Squamous Cell, Melanoma, Skin Neoplasm, Head and Neck Neoplasms
Interventions
Carlo Erba Ink Injection, EPR Oximetry Measurement
Device · Other
Lead sponsor
Philip Schaner
Other
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated Dec 18, 2019 · Synced Sep 24, 2026, 5:34 AM EDT
Terminated Not applicable Interventional

Study of Room Air Versus 60% Oxygen for Resuscitation of Premature Infants

NCT01773746
View directory record Official record
Conditions
Extreme Prematurity - Less Than 28 Weeks
Interventions
Neonatal Resuscitation
Other
Lead sponsor
Sharp HealthCare
Other
Eligibility
Not listed
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
6
States / cities
San Diego, California • Farmington, Connecticut • Miami, Florida + 3 more
Source: ClinicalTrials.gov public record
Updated Sep 11, 2018 · Synced Sep 24, 2026, 5:34 AM EDT