Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results come from ClinicalTrials.gov. When the live registry is unavailable, a clearly labeled stored copy may be shown.

Clear filters

These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.

ClinicalTrials.gov public records Last synced Oct 19, 2026, 5:40 AM EDT

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

Showing 169–192 of 210 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: spirometry Clear all
Completed No phase listed Observational Accepts healthy volunteers

Prevalence of Chronic Airway Obstruction in Subjects With a History of Cigarette Smoking in a Primary Care Setting

NCT01013948
View directory record Official record
Conditions
Pulmonary Disease, Chronic Obstructive
Interventions
Non-Interventional
Other
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
30 Years to 87 Years
Enrollment
1,574 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
40
States / cities
Adamsville, Alabama • Foothill Ranch, California • Huntington Beach, California + 37 more
Source: ClinicalTrials.gov public record
Updated Oct 18, 2012 · Synced Oct 19, 2026, 5:40 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Repeatability in Hyperpolarized 3-Helium With MRI

NCT03776747
View directory record Official record
Conditions
Radiation Exposure
Interventions
Prone hyperpolarized 3 helium gas scan, Supine hyperpolarized 3 helium gas scan, Vitals, Pulmonary Function Tests, Initial protocol MRI scan
Drug · Diagnostic Test
Lead sponsor
Eric A. Hoffman
Other
Eligibility
18 Years to 90 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2012
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Nov 1, 2023 · Synced Oct 19, 2026, 5:40 AM EDT
Recruiting No phase listed Observational

Longitudinal Evaluation of Microbial and Host Signatures During Immunotherapy for Lung Cancer

NCT04063501
View directory record Official record
Conditions
Lung Cancer
Interventions
Bronchoscopy, Research Procedures
Other
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 100 Years
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 2, 2025 · Synced Oct 19, 2026, 5:40 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Evaluating the Feasibility and Reliability of Using Handheld Nebulizers to Conduct Cough Sensitivity Testing With Citric Acid

NCT07531901
View directory record Official record
Conditions
Cough Reflex Sensitivity
Interventions
Cosmed QuarkSpiro Dosimeter-Controlled Nebulizer, DeVilbiss 45 Handheld Nebulizer
Device
Lead sponsor
University of Montana
Other
Eligibility
18 Years to 89 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Missoula, Montana
Source: ClinicalTrials.gov public record
Updated Jul 20, 2026 · Synced Oct 19, 2026, 5:40 AM EDT
Active, not recruiting No phase listed Observational

Characterizing Sleep Among Long-term Survivors of Childhood Cancer

NCT05480904
View directory record Official record
Conditions
ALL, Adult, CNS Tumor, Solid Tumor
Interventions
Neurocognitive (Thinking) Testing, CNS Vital Signs (Thinking) Testing, Health Questionnaires, Sleep Surveys & Sleep Diary, Echocardiography/EKG, Pulmonary Function, Remote Polysomnography, Physical Function
Other · Diagnostic Test · Device
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
18 Years and older
Enrollment
199 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 19, 2026 · Synced Oct 19, 2026, 5:40 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Responses to Live Attenuated Influenza Virus (LAIV) in Chronic Obstructive Pulmonary Disease (COPD)

NCT04901455
View directory record Official record
Conditions
COPD
Interventions
LAIV
Biological
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
40 Years and older
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 23, 2026 · Synced Oct 19, 2026, 5:40 AM EDT
Not yet recruiting Phase 4 Interventional

The INTERvening for LUNG Health Trial

NCT07540000
View directory record Official record
Conditions
Spirometry
Interventions
Community health worker-delivered multi-component respiratory health intervention
Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
9 Years and older
Enrollment
800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 8, 2026 · Synced Oct 19, 2026, 5:40 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

COPD-Related Physiology and the Brain

NCT03269721
View directory record Official record
Conditions
Pulmonary Disease, Chronic Obstructive (COPD), Cognitive Impairment
Interventions
Neuropsychological Assessment, Spirometry, Arterial Blood Gas, Diffusion Capacity of the Lung for Carbon Monoxide, 6 Minute Walk Test, Systemic Vascular Measures, Blood Biomarkers, Symptom Questionnaire Measures, Brain MRI
Behavioral · Procedure · Diagnostic Test + 1 more
Lead sponsor
Karin Hoth
Other
Eligibility
30 Years to 85 Years
Enrollment
170 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2025
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Dec 24, 2025 · Synced Oct 19, 2026, 5:40 AM EDT
Not listed Phase 1 Interventional Accepts healthy volunteers

Assessing Deformable Image Registration in the Lung Using Hyperpolarized-gas MRI

NCT02995590
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Hyperpolarized He3
Drug
Lead sponsor
University of Virginia
Other
Eligibility
18 Years to 64 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2021
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Nov 4, 2020 · Synced Oct 19, 2026, 5:40 AM EDT
Active, not recruiting Phase 3 Interventional

Extracorporeal Photopheresis for Medicare Recipients of Lung Allografts

NCT02181257
View directory record Official record
Conditions
Bronchiolitis Obliterans Syndrome (BOS)
Interventions
Extracorporeal Photopheresis (ECP), No intervention in the SOC / Retrospective Chart review.
Combination Product · Other
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
280 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2028
U.S. locations
22
States / cities
Birmingham, Alabama • Phoenix, Arizona • La Jolla, California + 18 more
Source: ClinicalTrials.gov public record
Updated Apr 6, 2026 · Synced Oct 19, 2026, 5:40 AM EDT
Completed Phase 2 Interventional Results available

A Proof of Concept Study of Inhaled Nitric Oxide for Adults With Pulmonary Non-Tuberculous Mycobacterial Infection

NCT03748992
View directory record Official record
Conditions
Nontuberculous Mycobacterium Infection
Interventions
gNO
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 80 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
2
States / cities
Portland, Oregon • Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated May 18, 2021 · Synced Oct 19, 2026, 5:40 AM EDT
Active, not recruiting No phase listed Observational

Michigan Early Disease Progression Cohort

NCT04968249
View directory record Official record
Conditions
COPD
Interventions
Observational
Other
Lead sponsor
University of Michigan
Other
Eligibility
30 Years to 55 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 31, 2026 · Synced Oct 19, 2026, 5:40 AM EDT
Completed Not applicable Interventional Results available

Comparison of Breath-Enhanced and T-Piece Nebulizers in Children With Acute Asthma

NCT02566902
View directory record Official record
Conditions
Asthma
Interventions
T-Piece Nebulizer, Breath-Enhanced Nebulizer, Albuterol, Pre-Treatment Spirometry Measurement, Post-Treatment Spirometry Measurement
Device · Drug · Procedure
Lead sponsor
Seton Healthcare Family
Other
Eligibility
6 Years to 17 Years
Enrollment
118 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated May 6, 2021 · Synced Oct 19, 2026, 5:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effect of High Frequency Chest Wall Oscillation Vests on Spirometry Measurements

NCT03534986
View directory record Official record
Conditions
Cystic Fibrosis, Bronchiectasis
Interventions
International Biophysics AffloVest, Hill-Rom The Vest, Respirtech inCourage, Electromed SmartVest
Device
Lead sponsor
International Biophysics Corporation
Industry
Eligibility
18 Years to 50 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Kissimmee, Florida
Source: ClinicalTrials.gov public record
Updated Oct 3, 2018 · Synced Oct 19, 2026, 5:40 AM EDT
Completed Not applicable Interventional

Albuterol Integrated Adherence Monitoring in Children With Asthma

NCT04896645
View directory record Official record
Conditions
Asthma in Children
Interventions
Digihaler Albuterol Device by TEVA
Device
Lead sponsor
Children's Hospital Los Angeles
Other
Eligibility
8 Years to 18 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Nov 18, 2023 · Synced Oct 19, 2026, 5:40 AM EDT
Completed Not applicable Interventional Results available

Promoting Risk Reduction Among Young Adults With Asthma During Wildfire Smoke Events (TRAK)

NCT04724733
View directory record Official record
Conditions
Asthma
Interventions
Smoke Sense, Smoke Sense Plus
Behavioral
Lead sponsor
Washington State University
Other
Eligibility
18 Years to 26 Years
Enrollment
67 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Spokane, Washington
Source: ClinicalTrials.gov public record
Updated Apr 28, 2023 · Synced Oct 19, 2026, 5:40 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Pathophysiology of the Upper Airway in Patients With COPD and Concomitant OSA

NCT02567448
View directory record Official record
Conditions
Obstructive Sleep Apnea
Interventions
Sleep and pulmonary physiologic measurements
Other
Lead sponsor
University of California, San Diego
Other
Eligibility
40 Years to 70 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated May 7, 2020 · Synced Oct 19, 2026, 5:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Pilot Evaluation Comparing Regional Distribution of Ventilation During Lung Expansion Therapy

NCT03083379
View directory record Official record
Conditions
Ventilation, Breathing, Atelectasis
Interventions
Volumetric Incentive Spirometry, EzPAP® POSITIVE AIRWAY PRESSURE
Device
Lead sponsor
University of Virginia
Other
Eligibility
18 Years to 79 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Jun 14, 2018 · Synced Oct 19, 2026, 5:40 AM EDT
Completed No phase listed Observational

Observational Study Comparing Home to Office Spirometry

NCT05285410
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Not listed
Lead sponsor
Chris Goss
Other
Eligibility
6 Years and older
Enrollment
116 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
19
States / cities
Anchorage, Alaska • Little Rock, Arkansas • Peoria, Illinois + 16 more
Source: ClinicalTrials.gov public record
Updated Jan 11, 2024 · Synced Oct 19, 2026, 5:40 AM EDT
Withdrawn Not applicable Interventional

Preoperative Self-managed Respiratory Therapy for Reduction of Postoperative Pulmonary Complications

NCT03356496
View directory record Official record
Conditions
Postoperative Respiratory Complication
Interventions
AirLife 4000 cc incentive spirometry device
Device
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Aug 29, 2022 · Synced Oct 19, 2026, 5:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Evaluating the Impact of Synthetic Cooling Agents in Combustible Cigarettes on Smoking Perceptions and Use

NCT06230159
View directory record Official record
Conditions
Cigarette Smoking-Related Carcinoma
Interventions
Non-menthol Cigarette Smoking, Menthol Cigarette Smoking, Synthetic Cooling Agent Cigarette Smoking, Usual Brand Cigarette Smoking, Spirometry, Questionnaire Administration, Nasal Epithelial Lining Fluid
Behavioral · Diagnostic Test · Other
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
21 Years to 29 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Oct 19, 2026, 5:40 AM EDT
Completed Phase 3 Interventional Results available

Characterization of 24 Hour Spirometry Profiles of Inhaled BI 1744 CL and Inhaled Foradil in Patients With Chronic Obstructive Pulmonary Disease

NCT00931385
View directory record Official record
Conditions
Pulmonary Disease, Chronic Obstructive
Interventions
BI 1744, bi1744, Placebo, Foradil
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
40 Years and older
Enrollment
99 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2009
U.S. locations
11
States / cities
Tampa, Florida • Overland Park, Kansas • Lafayette, Louisiana + 7 more
Source: ClinicalTrials.gov public record
Updated Jul 1, 2014 · Synced Oct 19, 2026, 5:40 AM EDT
Not listed No phase listed Observational

Quantification of Pulmonary Neutrophil Activity in Cystic Fibrosis Using Radiolabeled Fluorodeoxyglucose and PET Imaging

NCT00023465
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
FDG-PET, spirometry, bronchoscopy with BAL
Procedure
Lead sponsor
National Center for Research Resources (NCRR)
NIH
Eligibility
18 Years and older · Female only
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 24, 2005 · Synced Oct 19, 2026, 5:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Study of Novel Smoking Cessation Interventions in Current and Former Injection Drug Users

NCT01334736
View directory record Official record
Conditions
Tobacco Dependence
Interventions
Usual care, Lung age, Contingency Management, Lung age + Contingency Management
Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 22, 2017 · Synced Oct 19, 2026, 5:40 AM EDT