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ClinicalTrials.gov public records Last synced Oct 26, 2026, 6:18 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 49–72 of 576 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Expiration Clear all
Terminated Not applicable Interventional Results available

A Pilot Study to Assess the Effects of a Novel Application of Averaged Volume Assured Pressure Support Ventilation (AVAPS-AE) Therapy on Re-hospitalization in Patients With Sleep-Disordered Breathing With Co-morbid COPD

NCT02446769
View directory record Official record
Conditions
Breathing-Related Sleep Disorder
Interventions
AVAPS-AE Non-invasive ventilation therapy
Device
Lead sponsor
Philips Respironics
Industry
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Aug 5, 2020 · Synced Oct 26, 2026, 6:18 PM EDT
Completed Phase 2 Interventional Results available

Effects of L-arginine Supplementation in Adults With Moderate to Severe Asthma

NCT00280683
View directory record Official record
Conditions
Asthma
Interventions
L-arginine, Placebo
Drug
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 90 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2008
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated May 30, 2017 · Synced Oct 26, 2026, 6:18 PM EDT
Terminated No phase listed Observational

A Pilot Study of Inpatient Hospice With Procurement of Brain Tumor Tissue on Expiration for Research Purposes

NCT01251913
View directory record Official record
Conditions
Ependymomas, Gliomas, PNET, Pineal Tumors, PCNSL (Primary CNS Lymphoma)
Interventions
Not listed
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years to 100 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 3, 2019 · Synced Oct 26, 2026, 6:18 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 26, 2026, 6:18 PM EDT
Terminated No phase listed Observational

Exhaled Breath Condensate pH in Patients With Cough Caused by Gastroesophageal Reflux

NCT00451841
View directory record Official record
Conditions
Cough, Gastroesophageal Reflux
Interventions
RTube Exhaled Breath Condensate Collection System
Device
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2013
U.S. locations
1
States / cities
Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 26, 2018 · Synced Oct 26, 2026, 6:18 PM EDT
Terminated Phase 2 Interventional Results available

Nitric Oxide Gas Inhalation Therapy for Mild/Moderate COVID-19

NCT04305457
View directory record Official record
Conditions
Coronavirus Infections, Pneumonia, Viral, Acute Respiratory Distress Syndrome
Interventions
Nitric Oxide
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
2
States / cities
Shreveport, Louisiana • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 23, 2026 · Synced Oct 26, 2026, 6:18 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Respiratory Motor Control and Blood Pressure Regulation After Spinal Cord Injury

NCT02396823
View directory record Official record
Conditions
Spinal Cord Injury
Interventions
Respiratory Muscle Training
Behavioral
Lead sponsor
University of Louisville
Other
Eligibility
18 Years to 80 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2019
U.S. locations
1
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated Mar 7, 2025 · Synced Oct 26, 2026, 6:18 PM EDT
Completed Not applicable Interventional Results available

Respiratory Strength Training in Cardiac Surgical Patients

NCT04887415
View directory record Official record
Conditions
Cardiovascular Diseases, Thoracic Diseases, Surgery, Surgery--Complications, Dysphagia
Interventions
Respiratory Strength Training (RST) Program
Behavioral
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 90 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Aug 19, 2024 · Synced Oct 26, 2026, 6:18 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Characterization of Selected Aerosol Constituents Levels in the Exhaled Breath of Adult e-Vapor Users

NCT04881942
View directory record Official record
Conditions
Tobacco Use
Interventions
e-Vapor Product A, e-Vapor Product B, e-Vapor Product C, e-Vapor Product D
Other
Lead sponsor
Altria Client Services LLC
Industry
Eligibility
21 Years to 65 Years
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
High Point, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 30, 2024 · Synced Oct 26, 2026, 6:18 PM EDT
Not listed Phase 2 Interventional Accepts healthy volunteers

Assessing the Efficacy of CREWS01 to Decrease Usage of Rescue Inhalers in Moderate to Severe Asthmatic Adults

NCT02153541
View directory record Official record
Conditions
Asthma
Interventions
Antipyrine-benzocaine otic solution, Glycerin with Oxyquinoline Sulfate
Drug · Other
Lead sponsor
Global United Pharmaceutical Corporation
Industry
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Augusta, Georgia
Source: ClinicalTrials.gov public record
Updated Feb 8, 2023 · Synced Oct 26, 2026, 6:18 PM EDT
Completed Phase 3 Interventional Results available

Use of Methacetin Breath Test to Predict Liver Failure in Patients With Cirrhosis

NCT01157845
View directory record Official record
Conditions
Cirrhosis
Interventions
BreathID (Methacetin breath test)
Device
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years and older
Enrollment
165 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
3
States / cities
Detroit, Michigan • Charleston, South Carolina • Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated May 16, 2014 · Synced Oct 26, 2026, 6:18 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers

The Measurement of Chemicals in Exhaled Breath Can Identify If a Person is Infected with COVID-19

NCT06571136
View directory record Official record
Conditions
COVID-19
Interventions
Not listed
Lead sponsor
N5 Sensors
Industry
Eligibility
18 Years to 70 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Everett, Washington
Source: ClinicalTrials.gov public record
Updated Nov 20, 2024 · Synced Oct 26, 2026, 6:18 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Bilirubin Binding Capacity to Assess Bilirubin Load in Preterm Infants

NCT02691156
View directory record Official record
Conditions
Bilirubin-induced Neurologic Dysfunction, Hyperbilirubinemia, Kernicterus, Infant, Premature, Infant, Low Birth Weight
Interventions
Bilirubin Binding Capacity, End-tidal Carbon Monoxide, Carboxyhemoglobin
Diagnostic Test
Lead sponsor
Stanford University
Other
Eligibility
24 Weeks to 34 Weeks
Enrollment
143 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Oct 1, 2021 · Synced Oct 26, 2026, 6:18 PM EDT
Terminated Not applicable Interventional Results available

Pediatric Helmet CPAP Pilot Study

NCT04764929
View directory record Official record
Conditions
Bronchiolitis, Viral, Pneumonia, Viral, Pneumonia, Bacterial
Interventions
Helmet CPAP
Device
Lead sponsor
Columbia University
Other
Eligibility
1 Month to 5 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 29, 2024 · Synced Oct 26, 2026, 6:18 PM EDT
Completed Not applicable Interventional

Motor Plasticity, Intermittent Hypoxia and Sleep Apnea

NCT04017767
View directory record Official record
Conditions
Sleep Apnea, Obstructive, Spinal Cord Injuries, Hypoxia
Interventions
Induced Acute Intermittent Hypoxia (AIH), AIH mask
Procedure · Device
Lead sponsor
University of Miami
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Sep 8, 2025 · Synced Oct 26, 2026, 6:18 PM EDT
Withdrawn Not applicable Interventional

Effects of Different PEEP Levels on Work of Breathing in Morbidly Obese Patients Prior to and After Extubation

NCT02492113
View directory record Official record
Conditions
Obesity
Interventions
Positive end-expiratory pressure (PEEP), ZEEP
Procedure
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 20, 2026 · Synced Oct 26, 2026, 6:18 PM EDT
Completed Phase 2Phase 3 Interventional Results available

Does High Intraoperative Inspired Oxygen Reduce Postoperative Arterial Oxygen Saturation?

NCT00715741
View directory record Official record
Conditions
Atelectasis
Interventions
FiO2 (fraction of inspired oxygen) 0.3 plus PEEP (positive end expiratory pressure) 3 -5 cm water, FiO2 0.3 without PEEP, FiO2 >0.9 with 3-5 cm water PEEP, FiO2 >0.9 without PEEP
Other
Lead sponsor
University of Utah
Other
Eligibility
18 Years to 70 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Feb 18, 2010 · Synced Oct 26, 2026, 6:18 PM EDT
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 9, 2014 · Synced Oct 26, 2026, 6:18 PM EDT
Completed No phase listed Observational

Comparing Expectorated and Induced Sputum and Pharyngeal Swabs for Cultures, AFB Smears, and Cytokines in Pulmonary Nontuberculous Mycobacterial Infection

NCT01150721
View directory record Official record
Conditions
Mycobacterium Infections, Non-tuberculous
Interventions
Not listed
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
18 Years to 80 Years
Enrollment
177 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2010
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 13, 2026 · Synced Oct 26, 2026, 6:18 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Exhaled Carbon Monoxide (eCO) for Diffusing Capacity (DLCO) Correction

NCT01126047
View directory record Official record
Conditions
Lung Diseases
Interventions
eCO testing
Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
2
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Nov 9, 2011 · Synced Oct 26, 2026, 6:18 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Monitoring Exhaled Propofol to Individualize General Anesthesia

NCT01191021
View directory record Official record
Conditions
General Anesthesia
Interventions
Propofol Anesthesia
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 5, 2013 · Synced Oct 26, 2026, 6:18 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Cough Reflex Sensitivity and Bronchial Hyper-responsiveness

NCT01777867
View directory record Official record
Conditions
Gastroesophageal Reflux Disease, Chronic Cough, Broncho-hyperreactivity
Interventions
Cough Reflex Sensitivity, Methacholine Challenge
Procedure
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 60 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2016
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Feb 17, 2017 · Synced Oct 26, 2026, 6:18 PM EDT
Enrolling by invitation Not applicable Interventional

High Intensity Dysphagia Rehab for Acute Ischemic Stroke Patients

NCT05970406
View directory record Official record
Conditions
Dysphagia Following Cerebrovascular Accident
Interventions
high intensity dysphagia therapy
Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 99 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 12, 2025 · Synced Oct 26, 2026, 6:18 PM EDT
Completed Not applicable Interventional Results available

Sustained Aeration of Infant Lungs Trial

NCT02139800
View directory record Official record
Conditions
Preterm Birth, Extreme Prematurity
Interventions
Sustained Inflation, Standard of Care
Procedure
Lead sponsor
University of Pennsylvania
Other
Eligibility
23 Weeks to 26 Weeks
Enrollment
460 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
9
States / cities
Loma Linda, California • Sacramento, California • San Diego, California + 5 more
Source: ClinicalTrials.gov public record
Updated Apr 6, 2023 · Synced Oct 26, 2026, 6:18 PM EDT