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ClinicalTrials.gov public records Last synced Oct 21, 2026, 2:23 PM EDT

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Showing 25–48 of 190 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: air method Clear all
Recruiting Not applicable Interventional

Dose Optimization Study of Acute Intermittent Hypoxia in Spinal Cord Injury

NCT07739992
View directory record Official record
Conditions
Spinal Cord Injuries (SCI)
Interventions
Sham AIH, Acute Intermittent Hypoxia (AIH) 15, Acute Intermittent Hypoxia (AIH) 23
Other
Lead sponsor
Milap Sandhu
Other
Eligibility
18 Years to 75 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 31, 2026 · Synced Oct 21, 2026, 2:23 PM EDT
Terminated Phase 2 Interventional Results available

Photodynamic Therapy Using HPPH in Treating Patients With Advanced Non-Small Cell Lung Cancer That Blocks the Air Passages

NCT00528775
View directory record Official record
Conditions
Lung Cancer
Interventions
HPPH, endoscopic procedure
Drug · Procedure
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2014
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Jun 10, 2014 · Synced Oct 21, 2026, 2:23 PM EDT
Terminated Not applicable Interventional

Comparison of Barium Enema, Computed Tomographic Colonography, and Colonoscopy in Detecting Colon Cancer

NCT00016029
View directory record Official record
Conditions
Colorectal Cancer
Interventions
screening questionnaire administration, barium enema injection, computed tomography, computed tomography colonography, diagnostic colonoscopy, screening colonoscopy
Other · Procedure
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
775 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2005
U.S. locations
14
States / cities
La Jolla, California • San Francisco, California • Vero Beach, Florida + 8 more
Source: ClinicalTrials.gov public record
Updated Mar 22, 2013 · Synced Oct 21, 2026, 2:23 PM EDT
Completed No phase listed Observational

Adiposity and Airway Inflammation in HIV-Associated Airway Disease

NCT02975258
View directory record Official record
Conditions
Asthma, HIV, Adiposity
Interventions
Blood draw, Questionnaires, Spirometry, Methacholine challenge test, Quantitative CT scans, Urine pregnancy test, Adipose biopsy, Exhaled nitric oxide measurement
Procedure · Other · Radiation
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 80 Years
Enrollment
102 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 13, 2017 · Synced Oct 21, 2026, 2:23 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Environmental Intervention to Reduce Allergens in Urban Schools and Childhood Asthma

NCT01913795
View directory record Official record
Conditions
Asthma
Interventions
integrated pest management, air purifier, Sham air purifier
Other
Lead sponsor
Boston Children's Hospital
Other
Eligibility
4 Years to 15 Years
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 7, 2022 · Synced Oct 21, 2026, 2:23 PM EDT
Completed Phase 4 Interventional Results available

Loss of Resistance, w/wo Stimulation, For Epidural Placement

NCT03087604
View directory record Official record
Conditions
Anesthesia
Interventions
Thoracic epidural block, Electrical Nerve stimulation, Solution For Thoracic epidural block
Procedure · Drug
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years to 90 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 17, 2020 · Synced Oct 21, 2026, 2:23 PM EDT
Terminated Phase 1 Interventional Results available

Fecal Microbiota Transplantation (FMT) of FMP30 in Relapsing-Remitting Multiple Sclerosis

NCT03594487
View directory record Official record
Conditions
Relapsing Remitting Multiple Sclerosis
Interventions
FMP30 Donor Stool, Fecal Microbiota Transplantation (FMT) of FMP30 Donor Stool, Observational Control
Drug · Procedure · Other
Lead sponsor
Jeffrey Gelfand
Other
Eligibility
18 Years to 60 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Feb 3, 2026 · Synced Oct 21, 2026, 2:23 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Kalogon Pilot Fatigue and Comfort Study

NCT06116708
View directory record Official record
Conditions
B52 Pilot Fatigue and Comfort
Interventions
Kalogon AF Prototype Smart Cushion, Standard Seat Cushion from Air Force
Device
Lead sponsor
Kalogon
Industry
Eligibility
18 Years to 35 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Melbourne, Florida
Source: ClinicalTrials.gov public record
Updated Jan 2, 2024 · Synced Oct 21, 2026, 2:23 PM EDT
Completed Not applicable Interventional Results available

Vitabreath Pilot in Chronic Obstructive Pulmonary Disease (COPD) Patients

NCT03349437
View directory record Official record
Conditions
COPD, Dyspnea
Interventions
Vitabreath Device, Pursed Lip Breathing
Device · Other
Lead sponsor
Philips Respironics
Industry
Eligibility
40 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
2
States / cities
Youngstown, Ohio • Jefferson Hills, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 8, 2019 · Synced Oct 21, 2026, 2:23 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Platelet Rich Plasma for Musculoskeletal Conditions

NCT07231471
View directory record Official record
Conditions
Osteoarthritis (OA), Osteoarthritis (OA) of the Knee, Osteoarthritis (OA) of the Hip, Osteoarthritis (OA) of the Shoulder, Osteoarthritis Ankle, Elbow Osteoarthritis, Epicondylitis of the Elbow, Plantar Fasciitis of Both Feet, Tendinopathy
Interventions
Platelet Rich Plasma Injection, Platelet Rich Plasma Preparation
Biological · Device
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
10,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2035
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated May 6, 2026 · Synced Oct 21, 2026, 2:23 PM EDT
Completed Not applicable Interventional

A Comparison of Air Insufflation, Water Immersion and Water Exchange Colonoscopy in Diagnostic Patients

NCT01781650
View directory record Official record
Conditions
Pain, Colorectal Adenomas, Colorectal Cancer
Interventions
Air Insufflation method., Water Immersion method., Water Exchange method.
Other
Lead sponsor
Presidio Ospedaliero Santa Barbara
Other
Eligibility
18 Years to 85 Years
Enrollment
288 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jan 15, 2014 · Synced Oct 21, 2026, 2:23 PM EDT
Recruiting Not applicable Interventional

Effects of Lung Volume on Upper Airway Patency During Drug Induced Sleep Endoscopy

NCT05350332
View directory record Official record
Conditions
Obstructive Sleep Apnea
Interventions
Negative Pressure Ventilator, Pulmonary Function Testing (PFT), Transcutaneous Phrenic Nerve Stimulation, Percutaneous Phrenic Nerve Stimulation
Device
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
151 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Aug 26, 2026 · Synced Oct 21, 2026, 2:23 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

LMA Unique TM & the Self Pressurized Air-Q TM Intubating Laryngeal Airway in Children

NCT01385761
View directory record Official record
Conditions
Children
Interventions
Laryngeal Mask Airway, air-QTM Intubating Laryngeal Airway
Device
Lead sponsor
Ann & Robert H Lurie Children's Hospital of Chicago
Other
Eligibility
3 Years to 9 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 13, 2012 · Synced Oct 21, 2026, 2:23 PM EDT
Not listed Not applicable Interventional

rTMS and Rehabilitation for Individuals With CRPS Type 1

NCT05745025
View directory record Official record
Conditions
Complex Regional Pain Syndrome Type I
Interventions
Repeated Transcranial Magnetic Stimulation, Sham Repeated Transcranial Magnetic Stimulation, Rehabilitation
Device · Other
Lead sponsor
State University of New York - Upstate Medical University
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Syracuse, New York
Source: ClinicalTrials.gov public record
Updated Aug 30, 2023 · Synced Oct 21, 2026, 2:23 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 9, 2026 · Synced Oct 21, 2026, 2:23 PM EDT
Withdrawn Phase 2 Interventional

N2O for Acute Suicidality and Depression in the ED

NCT05710887
View directory record Official record
Conditions
Suicidal Ideation, Major Depressive Disorder, Treatment Resistant Depression
Interventions
Nitrous oxide gas for inhalation, Placebo
Drug
Lead sponsor
University of Chicago
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 4, 2026 · Synced Oct 21, 2026, 2:23 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Autism Intervention Research Network for Behavioral Health (AIR-B II): Deployment Into Elementary Schools

NCT01724047
View directory record Official record
Conditions
Autism
Interventions
Playground Intervention, STAT Intervention
Behavioral
Lead sponsor
Health Resources and Services Administration (HRSA)
Federal
Eligibility
4 Years and older
Enrollment
250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
3
States / cities
Los Angeles, California • Rochester, New York • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 25, 2014 · Synced Oct 21, 2026, 2:23 PM EDT
Completed Not applicable Interventional Results available

HHHFA in COPD Patients, With Chronic Bronchitis

NCT03959982
View directory record Official record
Conditions
Pulmonary Disease, Chronic Obstructive
Interventions
HHHFA Device, Spirometry, 6-minute walk, CT scan, Medical Research Council dyspnea scale (MRC), St. George's Respiratory Questionnaire (SGRQ), COPD Assessment Test (CAT), Pittsburgh Sleep Quality Index (PSQI), CASA-Q, Spirehealth Tag Device
Device · Diagnostic Test · Other
Lead sponsor
Spyridon Fortis
Other
Eligibility
18 Years to 100 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Sep 19, 2024 · Synced Oct 21, 2026, 2:23 PM EDT
Completed Not applicable Interventional

Home Air Purification for Eosinophilic COPD

NCT04252235
View directory record Official record
Conditions
COPD, Eosinophilia
Interventions
Air purifier, Sham air purifier
Device
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
40 Years and older
Enrollment
178 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 21, 2026 · Synced Oct 21, 2026, 2:23 PM EDT
Recruiting Phase 2Phase 3 Interventional Accepts healthy volunteers

Dissolved Phase HXe-129 MRI: A Novel Biomarker to Quantify Pulmonary Pathology

NCT06856525
View directory record Official record
Conditions
Electronic Cigarette Related Lung Damage
Interventions
Hyperpolarized xenon 129, Cardiopulmonary Stress Test, Pulmonary Function Test, Chest CT
Drug · Diagnostic Test
Lead sponsor
Y. Michael Shim, MD
Other
Eligibility
18 Years to 35 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2032
U.S. locations
2
States / cities
Durham, North Carolina • Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Mar 17, 2026 · Synced Oct 21, 2026, 2:23 PM EDT
Terminated Phase 2 Interventional Accepts healthy volunteers

Cerebrovascular Reactivity Assessed With fNIRS as a Biomarker of TCVI After Acute Traumatic Brain Injury in Military

NCT04058132
View directory record Official record
Conditions
Traumatic Brain Injury
Interventions
Sildenafil Citrate 50Mg Tab, functional Near-infrared Spectroscopy (fNIRS), Carbon Dioxide (CO2) 5%, Neuropsychological Assessments, Gadolinium contrast infusion, Blood sample collection for research purposes, Structural brain Magnetic Resonance Imaging (MRI
Drug · Device · Other + 1 more
Lead sponsor
Uniformed Services University of the Health Sciences
Federal
Eligibility
18 Years to 55 Years
Enrollment
1 participant
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 28, 2024 · Synced Oct 21, 2026, 2:23 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

The Clean Air Study: HEPA Purifiers to Improve Indoor Air Quality and Health in Rural Alaska Homes

NCT06534385
View directory record Official record
Conditions
Air Pollution, Indoor
Interventions
Air purifier
Device
Lead sponsor
Alaska Native Tribal Health Consortium
Other
Eligibility
Up to 5 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Bethel, Alaska
Source: ClinicalTrials.gov public record
Updated Feb 27, 2025 · Synced Oct 21, 2026, 2:23 PM EDT
Completed Not applicable Interventional Results available

Clinical Evaluation of Water Immersion Colonoscopy Insertion Technique

NCT00671177
View directory record Official record
Conditions
Colonoscopy, Digestive System, Endoscopy, Gastrointestinal Disease
Interventions
water immersion colonoscopy, standard air colonoscopy
Procedure
Lead sponsor
VA Palo Alto Health Care System
Federal
Eligibility
18 Years and older · Male only
Enrollment
229 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated May 1, 2017 · Synced Oct 21, 2026, 2:23 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Assessment of Vascular Endothelial Function in Postural Tachycardia Syndrome

NCT01308099
View directory record Official record
Conditions
Postural Tachycardia Syndrome
Interventions
Blood Pressure and Blood Flow
Device
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 60 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2017
U.S. locations
2
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 18, 2017 · Synced Oct 21, 2026, 2:23 PM EDT