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ClinicalTrials.gov public records Last synced Oct 3, 2026, 6:54 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 97 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: expired air Clear all
Completed Phase 4 Interventional

Mometasone and Markers of Airway Inflammation

NCT00711165
View directory record Official record
Conditions
Asthma
Interventions
Placebo, Mometasone Furoate
Drug
Lead sponsor
Creighton University
Other
Eligibility
19 Years to 50 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Jul 8, 2008 · Synced Oct 3, 2026, 6:54 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Biomarkers in Exhaled Breath From Asthmatic Patients

NCT00635271
View directory record Official record
Conditions
Asthma
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years to 75 Years
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2012
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 5, 2019 · Synced Oct 3, 2026, 6:54 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Evaluating Selected Constituents in the Exhaled Breath Samples

NCT04143256
View directory record Official record
Conditions
Electronic Cigarette Use, Cigarette Use, Electronic, Tobacco Use, Tobacco Smoking
Interventions
JUUL ENDS 5% Virginia Tobacco, JUUL 3% Virginia Tobacco ENDS, JUUL 5% Mint ENDS, JUUL 3% Mint ENDS, JUUL 5% Menthol ENDS, JUUL 3% Menthol ENDS, JUUL 5% Mango ENDS, JUUL 3% Mango ENDS, US Cigarette, Non-menthol - Marlboro Gold King Size, US Cigarette, Menthol - Newport King Size
Other
Lead sponsor
Juul Labs, Inc.
Industry
Eligibility
21 Years to 65 Years
Enrollment
135 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
3
States / cities
Secaucus, New Jersey • Charlotte, North Carolina • Raleigh, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 11, 2020 · Synced Oct 3, 2026, 6:54 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Utilizing Exhaled Breathe Condensate Collection to Study Ion Regulation in Cystic Fibrosis

NCT01880723
View directory record Official record
Conditions
Cystic Fibrosis, Healthy
Interventions
Albuterol, Placebo saline
Drug
Lead sponsor
University of Arizona
Other
Eligibility
15 Years to 55 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2013
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Nov 29, 2023 · Synced Oct 3, 2026, 6:54 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Lower Extremity BFR-randomized Controlled Trial Healthy Volunteers

NCT05868304
View directory record Official record
Conditions
Healthy
Interventions
BFR, Stanard strengthening program.
Device · Other
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Nov 25, 2025 · Synced Oct 3, 2026, 6:54 PM EDT
Completed No phase listed Observational

Sample Collections From the Airways of Asthmatic Patients

NCT00001888
View directory record Official record
Conditions
Asthma
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years to 75 Years
Enrollment
574 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 1999
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 8, 2026 · Synced Oct 3, 2026, 6:54 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Metabolic Changes in the Activated Human Visual Cortex During Mild Hypoxia

NCT02482571
View directory record Official record
Conditions
Brain Hypoxia
Interventions
Mild Hypoxia
Device
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 40 Years · Male only
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 19, 2019 · Synced Oct 3, 2026, 6:54 PM EDT
Recruiting No phase listed Observational

Exhaled Breath: A Novel Technique for Rapid Diagnosis of Respiratory Diseases and Infections

NCT06775106
View directory record Official record
Conditions
Pulmonary Disease, Critical Illness
Interventions
There is no intervention in this observational study
Other
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 120 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jan 14, 2025 · Synced Oct 3, 2026, 6:54 PM EDT
Completed No phase listed Observational

sPLA2 in EBC During Acute Chest Syndrome

NCT03250585
View directory record Official record
Conditions
Sickle Cell Disease, Acute Chest Syndrome
Interventions
Exhaled Breath Condensate (EBC), Plasma Sample
Diagnostic Test
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
7 Years to 30 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Sep 26, 2018 · Synced Oct 3, 2026, 6:54 PM EDT
Terminated Not applicable Interventional Results available

Exhaled Breath Analysis to Predict Risk of Symptomatic Pneumonitis

NCT04040244
View directory record Official record
Conditions
Pneumonitis, Nonsmall Cell Lung Cancer Stage III
Interventions
Exhaled Breath Collection, Blood sample
Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 11, 2023 · Synced Oct 3, 2026, 6:54 PM EDT
Suspended Not applicable Interventional

Insulin Sensitivity in Men With the Metabolic Syndrome

NCT00433173
View directory record Official record
Conditions
Metabolic Syndrome
Interventions
intravenous glucose tolerance test, testosterone, anastrozole, goserelin acetate implant, aerobic capacity (VO2 Max), MRI, muscle biopsy, measurement of resting metabolic rate (energy expenditure), Dual energy x-ray absorptiometry, Fasting oral glucose tolerance test
Procedure · Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
50 Years to 75 Years · Male only
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2011
U.S. locations
2
States / cities
Baltimore, Maryland • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 2, 2010 · Synced Oct 3, 2026, 6:54 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Testing Spectrosense EVA System for Detection of Pancreatic Cancer by Analyzing Volatile Organic Compounds (VOCs) in Exhaled Air

NCT01994681
View directory record Official record
Conditions
Pancreatic Cancer
Interventions
Not listed
Lead sponsor
Rauscher, Gregory E., M.D. PA
Individual
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2013
U.S. locations
1
States / cities
Hackensack, New Jersey
Source: ClinicalTrials.gov public record
Updated Dec 5, 2013 · Synced Oct 3, 2026, 6:54 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Testing Spectrosense EVA System for Detection of Breast Cancer by Analyzing Volatile Organic Compounds (VOCs) in Exhaled Air

NCT01849328
View directory record Official record
Conditions
Breast Cancer
Interventions
Not listed
Lead sponsor
Rauscher, Gregory E., M.D. PA
Individual
Eligibility
18 Years and older · Female only
Enrollment
600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2013
U.S. locations
1
States / cities
Englewood, New Jersey
Source: ClinicalTrials.gov public record
Updated Nov 19, 2013 · Synced Oct 3, 2026, 6:54 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Exhaled Breath Condensate Biomarkers of Inflammation in Individuals With Chronic Cervical Spinal Cord Injury

NCT02235714
View directory record Official record
Conditions
Tetraplegia, Asthma
Interventions
Not listed
Lead sponsor
James J. Peters Veterans Affairs Medical Center
Federal
Eligibility
18 Years to 89 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Sep 10, 2014 · Synced Oct 3, 2026, 6:54 PM EDT
Not listed Not applicable Interventional

WoundVac in Obese Patients Undergoing Lumbar Surgery

NCT03688438
View directory record Official record
Conditions
Obesity, Lumbar Spine Surgery
Interventions
Closed-Incision Negative-Pressure Therapy
Device
Lead sponsor
Norton Leatherman Spine Center
Other
Eligibility
18 Years and older
Enrollment
124 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated Sep 28, 2018 · Synced Oct 3, 2026, 6:54 PM EDT
Terminated Not applicable Interventional Results available

Analysis of Aldehyde Biomarkers of Exposure and Host Response

NCT00482690
View directory record Official record
Conditions
Smoking Cessation
Interventions
nicotine polacrilex, nicotine transdermal system, nicotine inhaler
Drug
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years and older
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Sep 7, 2023 · Synced Oct 3, 2026, 6:54 PM EDT
Terminated No phase listed Observational

Mesothelioma Early Detection by VOCs

NCT04106973
View directory record Official record
Conditions
Pleural Mesothelioma, Asbestos Exposure, Pleural Plaque
Interventions
Not listed
Lead sponsor
Henry Ford Health System
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Farmington Hills, Michigan
Source: ClinicalTrials.gov public record
Updated Aug 10, 2026 · Synced Oct 3, 2026, 6:54 PM EDT
Not listed Phase 1 Interventional Accepts healthy volunteers

GERD and Anti-Reflux Therapy Between Able-bodied and SCI Individuals

NCT02584751
View directory record Official record
Conditions
Gastro Esophageal Reflux Disorder
Interventions
Omeprazole, 24 Hour pH Monitor, Pulmonary Function Examination, Exhaled Nitric Oxide, Exhaled Breath Concentrate (EBC), Bernstein's Acid Clearance Test, Esophageal Motility
Drug · Device · Procedure
Lead sponsor
James J. Peters Veterans Affairs Medical Center
Federal
Eligibility
18 Years to 75 Years
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2016
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Nov 15, 2016 · Synced Oct 3, 2026, 6:54 PM EDT
Completed Not applicable Interventional Results available

Changes in Exhaled 13CO2/12CO2 Breath Delta Value as an Early Indicator of Infection in ICU Patients

NCT02327130
View directory record Official record
Conditions
Sepsis
Interventions
Isomark Canary™
Device
Lead sponsor
Isomark, LLC
Industry
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
6
States / cities
Gainesville, Florida • Jacksonville, Florida • St Louis, Missouri + 2 more
Source: ClinicalTrials.gov public record
Updated Jan 3, 2019 · Synced Oct 3, 2026, 6:54 PM EDT
Not listed No phase listed Observational

Continuous Exhaled Breath Condensate pH in Mechanically Ventilated Patients

NCT00429637
View directory record Official record
Conditions
Respiratory Distress Syndrome, Adult, Respiratory Syncytial Virus Infections, Pneumonia, Acute Lung Injury
Interventions
Not listed
Lead sponsor
University of Virginia
Other
Eligibility
1 Hour and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2009
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Aug 7, 2008 · Synced Oct 3, 2026, 6:54 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Exhaled Nitric Oxide in Respiratory Syncytial Virus (RSV) Bronchiolitis: a Pilot Study

NCT01090557
View directory record Official record
Conditions
RSV Infection, Bronchiolitis
Interventions
Collection of exhaled breath
Other
Lead sponsor
Winthrop University Hospital
Other
Eligibility
1 Day to 4 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
1
States / cities
Mineola, New York
Source: ClinicalTrials.gov public record
Updated Mar 22, 2010 · Synced Oct 3, 2026, 6:54 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

The Comparison of Pulse Oximetry, End-tidal Capnometry, and Integrated Pulmonary Index (IPI)

NCT01191528
View directory record Official record
Conditions
Postoperative Care
Interventions
capnostream 20, Oridian Medical 1987 ltd, Needham MA
Device
Lead sponsor
Allenmore Hospital
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Tacoma, Washington
Source: ClinicalTrials.gov public record
Updated Dec 13, 2010 · Synced Oct 3, 2026, 6:54 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Myokine Identification Following Acute Exercise

NCT06223035
View directory record Official record
Conditions
Adiposity
Interventions
Exercise
Other
Lead sponsor
Rockefeller University
Other
Eligibility
18 Years to 45 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 10, 2025 · Synced Oct 3, 2026, 6:54 PM EDT
Completed No phase listed Observational Results available

Evaluating Modes of Influenza Transmission Observational Study of Community Acquired Influenza

NCT01769430
View directory record Official record
Conditions
Influenza Virus Infection Transmission in Humans
Interventions
Observational Study of influenza aerosol shedding -- No Intervention
Other
Lead sponsor
University of Maryland, College Park
Other
Eligibility
10 Years and older
Enrollment
178 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
College Park, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 25, 2025 · Synced Oct 3, 2026, 6:54 PM EDT