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ClinicalTrials.gov public records Last synced Nov 1, 2026, 1:10 AM EST

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

Showing 553–576 of 577 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Expiration Clear all
Terminated Not applicable Interventional

Extubation Readiness Study in Very Low Birthweight Infants

NCT01471431
View directory record Official record
Conditions
Respiratory Distress Syndrome
Interventions
spontaneous breathing trial
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
48 Hours to 14 Weeks
Enrollment
81 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
2
States / cities
Phialdelphia, Pennsylvania • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 7, 2016 · Synced Nov 1, 2026, 1:10 AM EST
Terminated No phase listed Observational Results available

Protein Biomarker Discovery and Validation in Chronic Obstructive Pulmonary Disease (COPD) And Asthma

NCT02487394
View directory record Official record
Conditions
Asthma, COPD
Interventions
Exhaled Breath Condensate (EBC)
Procedure
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
18 Years to 65 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Galveston, Texas
Source: ClinicalTrials.gov public record
Updated Apr 18, 2023 · Synced Nov 1, 2026, 1:10 AM EST
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 Nov 1, 2026, 1:10 AM EST
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 Nov 1, 2026, 1:10 AM EST
Withdrawn No phase listed Observational

Exhaled Carbon Monoxide as a Marker of Hemolysis in Sickle Cell Disease- an Exploratory Study

NCT01888614
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
Not listed
Lead sponsor
University Hospitals Cleveland Medical Center
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 23, 2016 · Synced Nov 1, 2026, 1:10 AM EST
Completed Not applicable Interventional

Functional Electrical Stimulation for Production of Artificial Cough

NCT00589199
View directory record Official record
Conditions
Spinal Cord Injuries, Paralysis
Interventions
Placement and use of the device
Procedure
Lead sponsor
MetroHealth Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1993 – 2010
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 2, 2019 · Synced Nov 1, 2026, 1:10 AM EST
Completed Not applicable Interventional Results available

The Use of the Prevena™ Incision Management System on Post-Surgical Cesarean Section Incisions

NCT01450631
View directory record Official record
Conditions
Post-operative Complications, Surgical Site Infection, Surgical Wound Infection
Interventions
Prevena™ Incision Management System (PIMS), Standard-of-care Dressing
Device
Lead sponsor
KCI USA, Inc
Industry
Eligibility
18 Years and older · Female only
Enrollment
92 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 16, 2024 · Synced Nov 1, 2026, 1:10 AM EST
Terminated Phase 4 Interventional

Management of Asthma Patients Guided by Exhaled Nitric Oxide (eNO)

NCT00739219
View directory record Official record
Conditions
Asthma
Interventions
Apieron Insight eNO monitor
Device
Lead sponsor
Apieron
Industry
Eligibility
12 Years and older
Enrollment
260 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
12
States / cities
Mission Viejo, California • San Jose, California • Glastonbury, Connecticut + 9 more
Source: ClinicalTrials.gov public record
Updated Jan 21, 2009 · Synced Nov 1, 2026, 1:10 AM EST
Recruiting No phase listed Observational Accepts healthy volunteers

Ventilatory and Perfusion Abnormalities in Individuals With Post-Acute Sequelae of SARS-CoV-2 Infection

NCT05866952
View directory record Official record
Conditions
Post-Acute COVID-19, Post COVID-19 Condition, Post Viral Fatigue, Dyspnea
Interventions
Computed Tomography of the Chest
Diagnostic Test
Lead sponsor
Tufts Medical Center
Other
Eligibility
18 Years to 99 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 20, 2025 · Synced Nov 1, 2026, 1:10 AM EST
Recruiting Not applicable Interventional Accepts healthy volunteers

Impact of Novel vs. Usual Brand Menthol Cigarettes on Abuse Liability

NCT07564648
View directory record Official record
Conditions
Cigarette Addiction, Tobacco Use Disorder
Interventions
Biospecimen Collection, Questionnaire Administration, Cigarette Purchase Task, Cross-Price Elasticity Task, Daily Diary Surveys, Progressive Ratio Task
Behavioral
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
21 Years and older
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 14, 2026 · Synced Nov 1, 2026, 1:10 AM EST
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Harnessing the Power of Technology: MOMBA for Postpartum Smoking

NCT02237898
View directory record Official record
Conditions
Smoking Cessation
Interventions
MoMba Live Long app & Sensordrone™ carbon-monoxide sensor, Office contingency management, Sensordrone™ carbon-monoxide sensor, MoMba Live Long Smartphone application
Behavioral · Device
Lead sponsor
Yale University
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated May 21, 2020 · Synced Nov 1, 2026, 1:10 AM EST
Not listed Not applicable Interventional

Oscillation and Lung Expansion Therapy in Patients With COVID-19

NCT04582214
View directory record Official record
Conditions
COVID-19, Oscillation and Lung Expansion
Interventions
MetaNeb® System
Device
Lead sponsor
Hill-Rom
Industry
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
2
States / cities
Atlanta, Georgia • Evanston, Illinois
Source: ClinicalTrials.gov public record
Updated May 10, 2022 · Synced Nov 1, 2026, 1:10 AM EST
Completed Not applicable Interventional Results available

Monitoring of Exhaled Carbon Monoxide to Promote Pre-operative Smoking Cessation

NCT01014455
View directory record Official record
Conditions
Smoking
Interventions
Informing surgical patients about CO monitoring, a brief intervention recommending preoperative abstinence from smoking
Behavioral
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
169 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 22, 2011 · Synced Nov 1, 2026, 1:10 AM EST
Completed Not applicable Interventional Accepts healthy volunteers Results available

Smoking Reduction In Gravid Substance Use Disorders

NCT04132232
View directory record Official record
Conditions
Tobacco Smoking in Mother Complicating Pregnancy, Tobacco Use Disorder, Tobacco Smoking
Interventions
knowledge of expired maternal carbon monoxide and fetal carboxyhemoglobin levels
Diagnostic Test
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
16 Years to 45 Years · Female only
Enrollment
74 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Aug 5, 2024 · Synced Nov 1, 2026, 1:10 AM EST
Completed No phase listed Observational

A Comparison of Exhaled Carbon Monoxide Measurements Using the iCOquit Smokerlyzer and Vitalograph Breath CO Monitor vs Carboxyhemoglobin From Venous Samples While Validating a Mobile Research Application

NCT04826549
View directory record Official record
Conditions
Smoking, Cigarette
Interventions
Not listed
Lead sponsor
Rose Research Center, LLC
Industry
Eligibility
21 Years to 65 Years
Enrollment
30 participants
Timeline
2021
U.S. locations
2
States / cities
Charlotte, North Carolina • Raleigh, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 13, 2022 · Synced Nov 1, 2026, 1:10 AM EST
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 Nov 1, 2026, 1:10 AM EST
Completed No phase listed Observational

Role of Leukotrienes and Adenosine in Hyperpnea-induced Bronchospasm

NCT00710255
View directory record Official record
Conditions
Asthma, Exercise Induced
Interventions
Hyperpnea challenge
Procedure
Lead sponsor
University of Vermont
Other
Eligibility
12 Years to 75 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Colchester, Vermont
Source: ClinicalTrials.gov public record
Updated Oct 31, 2016 · Synced Nov 1, 2026, 1:10 AM EST
Terminated Not applicable Interventional Results available

NAVA Versus BiPAP Non-Invasive Respiratory Support in Infants Following Congenital Heart Surgery

NCT03180385
View directory record Official record
Conditions
Respiratory Failure
Interventions
Neurally-Adusted Ventilatory Assist (NAVA), Biphasic Positive Airway Pressure Support (BiPAP)
Device
Lead sponsor
Children's Hospitals and Clinics of Minnesota
Other
Eligibility
Up to 12 Months
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 10, 2020 · Synced Nov 1, 2026, 1:10 AM EST
Completed Not applicable Interventional Accepts healthy volunteers Results available

Pivot Breath Sensor Human Factors and Usability Study

NCT03835260
View directory record Official record
Conditions
Smoking Cessation, Smoking, Tobacco
Interventions
Pivot Breath Sensor
Device
Lead sponsor
Jennifer Marler, MD
Industry
Eligibility
18 Years to 80 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Redwood City, California
Source: ClinicalTrials.gov public record
Updated Nov 8, 2022 · Synced Nov 1, 2026, 1:10 AM EST
Completed Not applicable Interventional

Quit IT: Preliminary Testing of a Web-based, 3D Coping Skills Game to Increase Quitting Self-Efficacy for Maintaining Smoking Abstinence Following Hospitalization

NCT02099097
View directory record Official record
Conditions
Tobacco Use Cessation
Interventions
web-based video game (Quit IT), Questionnaires, Salvia sample
Other · Behavioral
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 30, 2020 · Synced Nov 1, 2026, 1:10 AM EST
Not listed No phase listed Observational Accepts healthy volunteers

Asymptomatic and Pre-symptomatic Transmission of SARS-CoV-2 in a Community Congregant Setting

NCT05145803
View directory record Official record
Conditions
COVID-19, SARS-CoV2 Infection
Interventions
Polyvinylalcohol strip [diagnostic]
Device
Lead sponsor
Colorado School of Public Health
Other
Eligibility
18 Years and older
Enrollment
3,300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
6
States / cities
Aurora, Colorado • Boulder, Colorado • Colorado Springs, Colorado + 2 more
Source: ClinicalTrials.gov public record
Updated Dec 20, 2021 · Synced Nov 1, 2026, 1:10 AM EST
Completed No phase listed Observational

The Effects of Respiratory Muscle Strength Training (RMST) on Inspiratory and Expiratory Muscle Strength in Adults and Children With Pompe Disease

NCT01701154
View directory record Official record
Conditions
Pompe Disease
Interventions
respiratory muscle strength training
Other
Lead sponsor
Duke University
Other
Eligibility
3 Years to 99 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated May 30, 2023 · Synced Nov 1, 2026, 1:10 AM EST
Recruiting Not applicable Interventional

Expiratory Muscle Strength Training for Hypernasal Speech in Children

NCT05492266
View directory record Official record
Conditions
Velopharyngeal Insufficiency, Velopharyngeal Incompetence Due to Cleft Palate, Inadequate Velopharyngeal Closure, Palatopharyngeal Incompetence, Hypernasality
Interventions
Expiratory Muscle Strength Training, Maintenance Training
Device
Lead sponsor
Noel Jabbour
Other
Eligibility
5 Years to 17 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 20, 2026 · Synced Nov 1, 2026, 1:10 AM EST
Completed No phase listed Observational Accepts healthy volunteers

Detecting Drugs of Abuse Via Exhaled Breath Samples Using Differential Mobility Spectrometry

NCT05384470
View directory record Official record
Conditions
Opiate Abuse, Marijuana Abuse, Diagnostic
Interventions
Marihuana, BID2 Instrument - breathalyzer
Drug · Device
Lead sponsor
Mclean Hospital
Other
Eligibility
21 Years to 50 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 2, 2025 · Synced Nov 1, 2026, 1:10 AM EST