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

Yogic Breathing Changes Salivary Components

NCT02108769
View directory record Official record
Conditions
Alzheimer Disease, Neurodegenerative Diseases, Cancer
Interventions
Yogic Breathing, Attention Control
Behavioral
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Apr 8, 2014 · Synced Sep 28, 2026, 9:01 PM 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 28, 2026, 9:01 PM EDT
Withdrawn Phase 2 Interventional Accepts healthy volunteers

Nitrous Oxide as Treatment for Fibromyalgia

NCT05357066
View directory record Official record
Conditions
Fibromyalgia, Central Neuropathic Pain
Interventions
Nitrous oxide gas for inhalation, Placebo
Drug
Lead sponsor
University of Chicago
Other
Eligibility
18 Years to 75 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 13, 2026 · Synced Sep 28, 2026, 9:01 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study of Inhalation of 20,000 EU CCRE in Normal Volunteers Compared to Allergic Asthmatic Individuals

NCT00839124
View directory record Official record
Conditions
Asthma, Hypersensitivity
Interventions
Clinical Center Reference Endotoxin (CCRE)
Biological
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 50 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 4, 2012 · Synced Sep 28, 2026, 9:01 PM EDT
Completed Phase 2 Interventional Results available

Formoterol Dose Ranging Study (ACHIEVE Duaklir USA Phase IIb)

NCT02796651
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease - COPD
Interventions
Formoterol fumarate (6 μg), Formoterol furmarate (20 μg), Placebo for formoterol fumarate, Formoterol fumarate (12 μg), Formoterol fumarate (40 μg)
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
40 Years to 130 Years
Enrollment
132 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016
U.S. locations
20
States / cities
Glendale, Arizona • Phoenix, Arizona • Tempe, Arizona + 17 more
Source: ClinicalTrials.gov public record
Updated Feb 6, 2018 · Synced Sep 28, 2026, 9:01 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Afferent Neurocardiac Signals, Cue Reactivity, and Cognitive Control

NCT05369169
View directory record Official record
Conditions
Binge Drinking
Interventions
Resonance breathing, Low demand cognitive task
Behavioral
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years to 35 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated Apr 19, 2026 · Synced Sep 28, 2026, 9:01 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Enhancing Cognition in Older Adults With Intermittent Hypoxia and Cognitive Training

NCT03957213
View directory record Official record
Conditions
Aging
Interventions
Acute Intermittent Hypoxia, Computerized Cognitive Training
Device · Behavioral
Lead sponsor
University of Florida
Other
Eligibility
65 Years to 89 Years
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Jan 3, 2022 · Synced Sep 28, 2026, 9:01 PM EDT
Recruiting Not applicable Interventional

Effect of Inhaled Technosphere Insulin vs RAA Insulin on Exercise-Induced Hypoglycemia in Adults With T1D Using Automated Insulin Delivery

NCT06880835
View directory record Official record
Conditions
Diabetes Mellitus, Type 1
Interventions
Control IQ + sleep or exercise activity with TI
Device
Lead sponsor
Jaeb Center for Health Research
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
3
States / cities
Louisville, Kentucky • Philadelphia, Pennsylvania • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jul 15, 2026 · Synced Sep 28, 2026, 9:01 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Targeting Breathing Limitations to Improve Functional Outcomes in HFpEF

NCT05723679
View directory record Official record
Conditions
Heart Failure With Preserved Ejection Fraction, Obesity
Interventions
HeO2 gas mixture, Room air gas mixture
Other
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
55 Years to 90 Years
Enrollment
78 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2029
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated May 6, 2026 · Synced Sep 28, 2026, 9:01 PM EDT
Completed Not applicable Interventional

Work of Breathing During Non-invasive Ventilation in Premature Neonates

NCT02788110
View directory record Official record
Conditions
Respiratory Distress Syndrome, Newborn, Bronchopulmonary Dysplasia
Interventions
Noninvasive neurally adjusted ventilatory assist (NIV NAVA), Nasal intermittent positive pressure ventilation (NIPPV)
Other
Lead sponsor
Arkansas Children's Hospital Research Institute
Other
Eligibility
Up to 12 Months
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Jan 10, 2019 · Synced Sep 28, 2026, 9:01 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 28, 2026, 9:01 PM EDT
Not yet recruiting Phase 1Phase 2 Interventional

Randomized Clinical Trial of the Application of TrachPhone HME and the Impact on Patient Satisfaction for Tracheostomized Head and Neck Cancer Patients

NCT07798414
View directory record Official record
Conditions
Patient Satisfaction, Pulmonary Rehabilitation
Interventions
TrachPhone Heat Moisture Exchange, Trach Collar
Device
Lead sponsor
University of South Florida
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
2
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Aug 31, 2026 · Synced Sep 28, 2026, 9:01 PM EDT
Terminated Not applicable Interventional

A Pilot Study to Evaluate the Use of the Vest® System for Treatment of Bronchiectasis Patients in the Home Setting

NCT04017312
View directory record Official record
Conditions
Bronchiectasis, Bronchiectasis With Acute Exacerbation
Interventions
High Frequency Chest Wall Oscillation, Oscillating Positive Expiratory Pressure (OPEP)
Device
Lead sponsor
Hill-Rom
Industry
Eligibility
18 Years to 80 Years
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
3
States / cities
New York, New York • Nashville, Tennessee • Tyler, Texas
Source: ClinicalTrials.gov public record
Updated Aug 20, 2024 · Synced Sep 28, 2026, 9:01 PM EDT
Terminated Phase 4 Interventional Results available

A Study of Arformoterol Tartrate Inhalation Solution and Tiotropium Bromide on Re-hospitalization in Chronic Obstructive Pulmonary Disease (COPD) Subjects

NCT02275481
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease (COPD)
Interventions
Arformoterol tartrate inhalation solution, Tiotropium
Drug
Lead sponsor
Sumitomo Pharma America, Inc.
Industry
Eligibility
55 Years and older
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
28
States / cities
Birmingham, Alabama • Flagstaff, Arizona • Waterbury, Connecticut + 24 more
Source: ClinicalTrials.gov public record
Updated Jun 26, 2018 · Synced Sep 28, 2026, 9:01 PM EDT
Completed No phase listed Observational

Investigate the Aerosol Particle Distribution During Aerosol Generating Procedures

NCT04353531
View directory record Official record
Conditions
Transmission, Patient Professional, High-flow Nasal Cannula
Interventions
High-flow nasal cannula, Surgical mask, bronchoscopy examination, intubation, tracheostomy, nebulization, Pulmonary function test
Device · Procedure · Diagnostic Test
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 22, 2021 · Synced Sep 28, 2026, 9:01 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Effect of Position and Anesthetic Choice in Intraocular Pressure in Robotic GYN (Gynecologic) Oncology Patients

NCT04281017
View directory record Official record
Conditions
Intraocular Pressure, Oncology
Interventions
TIVA, Balanced anesthesia
Drug
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 99 Years · Female only
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2026
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Jul 22, 2026 · Synced Sep 28, 2026, 9:01 PM EDT
Completed Not applicable Interventional Results available

Oxygen Therapy for the Treatment of Undifferentiated Headache in the Emergency Department

NCT00856232
View directory record Official record
Conditions
Headache
Interventions
Medical Air, Oxygen
Biological
Lead sponsor
University of Medicine and Dentistry of New Jersey
Other
Eligibility
21 Years and older
Enrollment
91 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated Apr 20, 2016 · Synced Sep 28, 2026, 9:01 PM EDT
Recruiting Not applicable Interventional

Hyperbaric Oxygen Therapy for Optic Neuropathies

NCT06128720
View directory record Official record
Conditions
Optic Neuropathy, Glaucoma
Interventions
Hyperbaric Oxygen, Sham Hyperbaric Oxygen
Device
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated May 24, 2025 · Synced Sep 28, 2026, 9:01 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 28, 2026, 9:01 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Comparison of the Classic Face Mask Versus NuMask for Preoxygenation

NCT01865851
View directory record Official record
Conditions
Inspired Oxygen (FIO2), End-tidal Oxygen (ETO2), End-tidal Carbon Dioxide (ETCO2) and Respiratory Rate (RR) Will be Measured Every 30 Seconds
Interventions
Classic Face Mask and NuMask
Device
Lead sponsor
Nimmagadda, Usharani, M.D.
Individual
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 13, 2017 · Synced Sep 28, 2026, 9:01 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

NeuroGlove PD Study Clinical

NCT06578273
View directory record Official record
Conditions
Parkinson Disease
Interventions
NeuroGlove
Device
Lead sponsor
NeuroGlove LLC
Industry
Eligibility
18 Years to 85 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 2, 2024 · Synced Sep 28, 2026, 9:01 PM EDT
Completed Phase 2 Interventional Results available

Hyperbaric Oxygen Therapy (HBO2) for Persistent Post-concussive Symptoms After Mild Traumatic Brain Injury (mTBI)

NCT01306968
View directory record Official record
Conditions
Post-concussive Symptoms, Traumatic Brain Injury
Interventions
hyperbaric oxygen, sham hyperbaric air
Drug · Other
Lead sponsor
U.S. Army Medical Research and Development Command
Federal
Eligibility
18 Years to 65 Years
Enrollment
79 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
5
States / cities
Camp Pendleton, California • Fort Carson, Colorado • Fort Gordon, Georgia + 2 more
Source: ClinicalTrials.gov public record
Updated Sep 4, 2014 · Synced Sep 28, 2026, 9:01 PM EDT
Terminated Phase 2 Interventional Results available

Normobaric Oxygen Therapy in Acute Ischemic Stroke Trial

NCT00414726
View directory record Official record
Conditions
Ischemic Stroke
Interventions
NBO (Normobaric Oxygen), Room Air
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
85 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 19, 2017 · Synced Sep 28, 2026, 9:01 PM EDT
Terminated Early Phase 1 Interventional

19F MRI of Ventilation in Subjects With Cystic Fibrosis Undergoing Treatment for Pulmonary Exacerbation

NCT03497117
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Lung Clearance Index, MRI with PFP
Device · Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 99 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 8, 2020 · Synced Sep 28, 2026, 9:01 PM EDT