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ClinicalTrials.gov public records Last synced Sep 5, 2026, 11:47 PM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Breath Sample Collection Clear all
Completed No phase listed Observational Accepts healthy volunteers

Diagnostic Breath Analysis for Detection of Ventilator Acquired Pneumonia (VAP)

NCT03053258
View directory record Official record
Conditions
Bacterial Infections
Interventions
Collection of exhaled breath sample
Device
Lead sponsor
Landon Pediatric Foundation
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Ventura, California
Source: ClinicalTrials.gov public record
Updated May 6, 2019 · Synced Sep 5, 2026, 11:47 PM EDT
Recruiting No phase listed Observational

Study to Enable New Diagnostics for Pulmonary Microbes in People With CF

NCT07312734
View directory record Official record
Conditions
Cystic Fibrosis (CF), New Diagnostics
Interventions
Not listed
Lead sponsor
Chris Goss
Other
Eligibility
16 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
9
States / cities
La Jolla, California • Minneapolis, Minnesota • St Louis, Missouri + 6 more
Source: ClinicalTrials.gov public record
Updated Jul 1, 2026 · Synced Sep 5, 2026, 11:47 PM EDT
Recruiting Phase 2 Interventional

Using E-Nose Technology to Track Treatment Response in People With Non-Small Cell Lung Cancer

NCT07218601
View directory record Official record
Conditions
Non-Small Cell Lung Cancer
Interventions
Breath sample collection, Research blood collection
Diagnostic Test
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
7
States / cities
Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 4 more
Source: ClinicalTrials.gov public record
Updated Mar 22, 2026 · Synced Sep 5, 2026, 11:47 PM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Home-Based Respiratory Muscle Training and Aerobic Exercise Programs to Improve Lung Health in Current and Former Cigarette Smokers

NCT07553819
View directory record Official record
Conditions
Lung Carcinoma
Interventions
Accelerometry, Aerobic Exercise, Biospecimen Collection, Educational Intervention, Electronic Health Record Review, Physical Performance Testing, Respiratory Muscle Training, Supportive Care, Survey Administration
Procedure · Other
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
50 Years and older
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Aug 20, 2026 · Synced Sep 5, 2026, 11:47 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Defining a PD-specific Breath Fingerprint of Underlying Inflammatory and Neurodegenerative Processes

NCT02749214
View directory record Official record
Conditions
Parkinson's Disease
Interventions
Blood Sample Collection, Breath Sample Collection
Other
Lead sponsor
Emory University
Other
Eligibility
25 Years to 85 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jun 17, 2019 · Synced Sep 5, 2026, 11:47 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Feasibility of Breathwork Intervention With Older Adults After Knee Surgery

NCT07464860
View directory record Official record
Conditions
Surgical Stress Response, Stress Physiological, Stress Physiology, Stress Psychological, Breathing Techniques, Breathing Exercises, Hypothalamic Pituitary Adrenal, Relaxation, Relaxation Therapy, Cortisol, Postoperative Pain, Postoperative Anxiety, Postoperative Depression, Quality of Recovery (QoR-15)
Interventions
A 5-minute Asynchronous Breathwork Intervention, A 5-minute Asynchronous Card Game Video
Behavioral
Lead sponsor
University of Arizona
Other
Eligibility
65 Years and older
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 5, 2026 · Synced Sep 5, 2026, 11:47 PM EDT
Terminated No phase listed Observational

Breath Metabolomics in the Laboring Parturient

NCT04564196
View directory record Official record
Conditions
Labor Onset and Length Abnormalities
Interventions
Breath Sample
Procedure
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older · Female only
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Jun 7, 2023 · Synced Sep 5, 2026, 11:47 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Breath Analysis Based Disease Biomarkers

NCT04341012
View directory record Official record
Conditions
Liver Diseases, Liver Cancer, COVID19
Interventions
Collection of breath sample
Diagnostic Test
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Jan 25, 2026 · Synced Sep 5, 2026, 11:47 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 Aug 31, 2026 · Synced Sep 5, 2026, 11:47 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of SKY Breath Meditation on Health and Well-being

NCT05523414
View directory record Official record
Conditions
Stress, Stress, Psychological, Stress, Physiological, Anxiety, Mental Well Being, Happiness, Resilience
Interventions
SKY
Behavioral
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
21 Years to 99 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Mar 1, 2026 · Synced Sep 5, 2026, 11:47 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Lung Macrophage Populations and Functions in Chronic Obstructive Pulmonary Disease (COPD)-Susceptible Smokers

NCT04722835
View directory record Official record
Conditions
Copd, Smoking, Tobacco Use
Interventions
Bronchoscopy with Bronchoalveolar Lavage (BAL)
Procedure
Lead sponsor
University of California, San Francisco
Other
Eligibility
40 Years to 75 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2030
U.S. locations
3
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Sep 5, 2026, 11:47 PM EDT
Recruiting Not applicable Interventional

Miniaturized Breath-based Sensor for the Detection of Hypo- and Hyperglycemia

NCT07696273
View directory record Official record
Conditions
Diabetes, Hyperglycemia, Hypoglycemia (Diabetic)
Interventions
Sensing Device and Tedlar Bags
Device
Lead sponsor
Indiana University
Other
Eligibility
7 Years to 25 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Jul 9, 2026 · Synced Sep 5, 2026, 11:47 PM EDT
Completed No phase listed Observational

Clinical Validation of the LumiraDx SARS-CoV-2 & Flu A/B Combo Test

NCT05787444
View directory record Official record
Conditions
SARS-CoV-2, Influenza A, Influenza B, Asymptomatic COVID-19
Interventions
LumiraDx SARS-CoV-2 & Flu A/B
Diagnostic Test
Lead sponsor
LumiraDx UK Limited
Industry
Eligibility
2 Years and older
Enrollment
1,081 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Cullman, Alabama
Source: ClinicalTrials.gov public record
Updated Jun 10, 2026 · Synced Sep 5, 2026, 11:47 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Study of Treprostinil to Treat Interstitial Lung Disease Pulmonary Hypertension

NCT05564637
View directory record Official record
Conditions
Pulmonary Arterial Hypertension, Interstitial Lung Disease, Healthy Adults
Interventions
Treprostinil, Right Heart Catheterization (RHC) while exercising, Optional Muscle Biopsy
Drug · Diagnostic Test
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 2, 2025 · Synced Sep 5, 2026, 11:47 PM EDT
Completed No phase listed Observational

Longitudinal Evaluation of HIV-associated Lung Disease Phenotypes

NCT02238327
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease, HIV, Emphysema
Interventions
blood draw, questionnaires, Lung function testing, Six-Minute walk test, Quantitative CT scans, Nasal secretion and cell collection, Echocardiogram
Procedure · Radiation
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 80 Years
Enrollment
232 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 7, 2020 · Synced Sep 5, 2026, 11:47 PM EDT
Active, not recruiting Phase 4 Interventional Accepts healthy volunteers

Helicobacter Pylori Screening and Treatment in the At-risk South Florida Community- AIM 1

NCT07224035
View directory record Official record
Conditions
H Pylori Infection, H Pylori Gastritis, Gastric Cancer
Interventions
PYTEST® 14C-Urea Breath Test, VOQUEZNA® Triple Pak®
Drug
Lead sponsor
University of Miami
Other
Eligibility
18 Years and older
Enrollment
500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Feb 16, 2026 · Synced Sep 5, 2026, 11:47 PM EDT
Recruiting No phase listed Observational

Multicenter Symphony™ IL-6 Monitoring Sepsis ED Pilot Study

NCT07425587
View directory record Official record
Conditions
Sepsis, Septic Shock
Interventions
Not listed
Lead sponsor
Bluejay Diagnostics, Inc.
Industry
Eligibility
22 Years and older
Enrollment
450 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
5
States / cities
Gainesville, Florida • Boston, Massachusetts • Winston-Salem, North Carolina + 2 more
Source: ClinicalTrials.gov public record
Updated Jul 1, 2026 · Synced Sep 5, 2026, 11:47 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

ABCA2 GIRMS Analytical Validation Clinical Performance Study

NCT04607304
View directory record Official record
Conditions
Gastroparesis
Interventions
ABCA2 GIRMS
Device
Lead sponsor
Cairn Diagnostics
Industry
Eligibility
18 Years to 85 Years
Enrollment
95 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Brentwood, Tennessee
Source: ClinicalTrials.gov public record
Updated Jul 29, 2021 · Synced Sep 5, 2026, 11:47 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Development of 4D Flow MRI for Risk Stratification of Variceal Bleeding in Cirrhosis

NCT04867954
View directory record Official record
Conditions
Cirrhosis, Liver, Gastroesophageal Varices, Fontan Procedure
Interventions
Ensure Plus®, Pre-clinical validation contrast enhanced MRI, Clinical validation MRI, Pre-clinical validation contrast enhanced MRI + fasting
Other
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
84 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jul 7, 2026 · Synced Sep 5, 2026, 11:47 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Cue Reactivity in Virtual Reality: The Role of Context

NCT00862927
View directory record Official record
Conditions
Smoking
Interventions
Breath Sample, Saliva Sample, Questionnaire, View Virtual Reality Scenes
Other · Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 19, 2012 · Synced Sep 5, 2026, 11:47 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 25, 2018 · Synced Sep 5, 2026, 11:47 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Mechanisms of Altered Ventilatory Control in Heart Failure

NCT02421341
View directory record Official record
Conditions
Heart Failure
Interventions
Fentanyl, Catheters, Exercise, DEXA, Pulmonary Function Tests, Blood Draw, Chemosensitivity Test, Placebo
Drug · Procedure · Other + 1 more
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 90 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2019
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 15, 2021 · Synced Sep 5, 2026, 11:47 PM EDT
Completed Not applicable Interventional

Study to Evaluate NA-NOSE for Monitoring and Detecting Recurrence in Early Stage Lung Cancer

NCT01840150
View directory record Official record
Conditions
Stage IA Non-small Cell Lung Cancer, Stage IB Non-small Cell Lung Cancer, Stage IIA Non-small Cell Lung Cancer, Stage IIB Non-small Cell Lung Cancer
Interventions
breath test, laboratory biomarker analysis
Procedure · Other
Lead sponsor
Fox Chase Cancer Center
Other
Eligibility
18 Years and older
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2019
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 12, 2023 · Synced Sep 5, 2026, 11:47 PM EDT
Completed Not applicable Interventional

Contingency Management to Reduce Alcohol Use in a Soup Kitchen Sample

NCT02499913
View directory record Official record
Conditions
Alcohol Abuse, Contingency Management
Interventions
breath alcohol monitoring, contingency management
Behavioral
Lead sponsor
UConn Health
Other
Eligibility
18 Years and older
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
New Britain, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 25, 2017 · Synced Sep 5, 2026, 11:47 PM EDT