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ClinicalTrials.gov public records Last synced Oct 25, 2026, 11:14 AM EDT

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Showing 169–192 of 303 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Breath Testing Clear all
Completed Not applicable Interventional Results available

Efficacy and Mechanisms of CBT4CBT for Alcohol Use Disorders

NCT02742246
View directory record Official record
Conditions
Alcohol Use Disorder
Interventions
Individual clinician-provided CBT, CBT4CBT
Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
99 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
2
States / cities
Bridgeport, Connecticut • New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Nov 18, 2023 · Synced Oct 25, 2026, 11:14 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

MyGI Diet for Colorectal Cancer Prevention

NCT05396846
View directory record Official record
Conditions
Colorectal Neoplasms
Interventions
Eating Plan 1, Eating Plan 2, Eating Plan 3
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
19 Years and older
Enrollment
240 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 7, 2026 · Synced Oct 25, 2026, 11:14 AM EDT
Completed Phase 2 Interventional

PMRR-NO: Pulmonary Metabolic Radiation Response Versus Exhaled Nitric Oxide

NCT00867477
View directory record Official record
Conditions
Gastrointestinal Disease, Esophageal Cancer, Lung Cancer
Interventions
Breathing Test, Respiratory Symptoms Questionnaire, Pet Scan
Procedure · Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
Not listed
Enrollment
163 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 28, 2014 · Synced Oct 25, 2026, 11:14 AM EDT
Recruiting Not applicable Interventional

Vascular ARDS Recruitment After Inhaled Nitric Oxide

NCT05801224
View directory record Official record
Conditions
Acute Respiratory Distress Syndrome, Ventilation Perfusion Mismatch
Interventions
Nitric Oxide
Device
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 80 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 2, 2026 · Synced Oct 25, 2026, 11:14 AM EDT
Completed Not applicable Interventional

Cardiac Rehabilitation Program in Improving Cardiorespiratory Fitness in Stage 0-III Breast Cancer Survivors

NCT03039140
View directory record Official record
Conditions
Cancer Survivor, Stage 0 Breast Cancer, Stage IA Breast Cancer, Stage IB Breast Cancer, Stage IIA Breast Cancer, Stage IIB Breast Cancer, Stage IIIA Breast Cancer, Stage IIIB Breast Cancer, Stage IIIC Breast Cancer
Interventions
Educational Intervention, Exercise Intervention, Quality-of-Life Assessment, Questionnaire Administration
Other · Behavioral
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
30 Years to 75 Years · Female only
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2021
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 10, 2022 · Synced Oct 25, 2026, 11:14 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Clinical Experiment of Helicobacter Pylori Transmission

NCT00550368
View directory record Official record
Conditions
Infection, Achlorhydria
Interventions
Biological intervention: Enteropathogenic E. coli
Biological
Lead sponsor
Stanford University
Other
Eligibility
35 Years to 59 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2009
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Dec 6, 2016 · Synced Oct 25, 2026, 11:14 AM EDT
Completed No phase listed Observational

A Clinical Evaluation of Pine Trees Health Test System Including the Pine Trees Health Reader and COVID-19 Test for Point-of-Care

NCT05107258
View directory record Official record
Conditions
SARS (Severe Acute Respiratory Syndrome), Covid19
Interventions
The Pine Trees Health Test System
Diagnostic Test
Lead sponsor
Pine Trees, Inc.
Industry
Eligibility
6 Years and older
Enrollment
195 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
3
States / cities
Spring Hill, Florida • Statesville, North Carolina • Redmond, Washington
Source: ClinicalTrials.gov public record
Updated Nov 4, 2021 · Synced Oct 25, 2026, 11:14 AM EDT
Completed Phase 3 Interventional Results available

Exalenz Lab Mode System Compared to Biopsy for H.Pylori Detection

NCT02528721
View directory record Official record
Conditions
Helicobacter Pylori Infection
Interventions
Dual Mode BreathID Hp System
Device
Lead sponsor
Meridian Bioscience, Inc.
Industry
Eligibility
18 Years and older
Enrollment
282 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
11
States / cities
Tucson, Arizona • Ventura, California • Lafayette, Colorado + 8 more
Source: ClinicalTrials.gov public record
Updated Dec 20, 2022 · Synced Oct 25, 2026, 11:14 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Different Carbohydrate Feedings on a Hydrogen Breath Curve and Self-reported Gastrointestinal Complaints

NCT06648967
View directory record Official record
Conditions
Quality of Life
Interventions
Supplementation with a multi-ingredient whey supplement
Dietary Supplement
Lead sponsor
Arizona State University
Other
Eligibility
18 Years to 60 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 24, 2026 · Synced Oct 25, 2026, 11:14 AM EDT
Completed Phase 2 Interventional Results available

Fentanyl Buccal Tablets for Exercise Induced Breakthrough Dyspnea

NCT01856114
View directory record Official record
Conditions
Advanced Cancers
Interventions
Fentanyl Buccal Tablet, Placebo Buccal Tablet, Questionnaires
Drug · Other · Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 16, 2020 · Synced Oct 25, 2026, 11:14 AM EDT
Completed Not applicable Interventional

Surrogate Markers of Portal Pressure

NCT02508298
View directory record Official record
Conditions
Portal Hypertension, Cirrhosis
Interventions
HVPG, Indocyanine Green Retention test, Liver stiffness measurement, Spleen stiffness measurement
Procedure · Drug · Device
Lead sponsor
VA Connecticut Healthcare System
Federal
Eligibility
18 Years to 85 Years
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
2
States / cities
New Haven, Connecticut • West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Nov 25, 2019 · Synced Oct 25, 2026, 11:14 AM EDT
Completed Early Phase 1 Interventional

Respiratory Strength Training in Persons With Amyotrophic Lateral Sclerosis (ALS)

NCT02710110
View directory record Official record
Conditions
Amyotrophic Lateral Sclerosis
Interventions
PowerLung trainer, Micro Mouth Pressure Meter, Pulmonary Function Testing, Videofluoroscopic swallowing study, Swallowing Quality of Life Questionnaire, Iowa Oral Pressure Instrument, Capsaicin
Device · Procedure · Other + 1 more
Lead sponsor
University of Florida
Other
Eligibility
21 Years to 85 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Jan 27, 2020 · Synced Oct 25, 2026, 11:14 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Botanical Blend on the Gut Microbiome and Gut-Skin-Axis in Small Intestinal Bacterial Overgrowth (SIBO)

NCT04867512
View directory record Official record
Conditions
Small Intestinal Bacterial Overgrowth (SIBO)
Interventions
Liquid Tincture, GI Detox, Olivirex
Dietary Supplement
Lead sponsor
Integrative Skin Science and Research
Industry
Eligibility
18 Years to 60 Years
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated May 4, 2021 · Synced Oct 25, 2026, 11:14 AM 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 18, 2019 · Synced Oct 25, 2026, 11:14 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Brain Integrity in Survivors of Hodgkin Lymphoma Treated With Thoracic Radiation

NCT01820117
View directory record Official record
Conditions
Hodgkin Lymphoma
Interventions
Neurocognitive Evaluation, Quantitative Brain Imaging, Neurologic Evaluation, Health Questionnaire, Vascular Testing, Cardiopulmonary Exercise Testing, Echocardiography, Pulmonary Function Testing, Serum Biomarkers, Ophthalmology Examination
Other · Procedure
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
18 Years and older
Enrollment
416 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Mar 1, 2018 · Synced Oct 25, 2026, 11:14 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Risk Assessment Evaluation for Identifying Participants at High Risk for Stomach Cancer

NCT06408220
View directory record Official record
Conditions
Gastric Carcinoma
Interventions
Biopsy, Biospecimen Collection, Breath Test, Esophagogastroduodenoscopy, Questionnaire Administration
Procedure · Other
Lead sponsor
City of Hope Medical Center
Other
Eligibility
40 Years to 80 Years
Enrollment
240 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2029
U.S. locations
1
States / cities
Duarte, California
Source: ClinicalTrials.gov public record
Updated Mar 13, 2026 · Synced Oct 25, 2026, 11:14 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Effects of Alcohol and Mood on Attention

NCT04276779
View directory record Official record
Conditions
Suicidal Ideas
Interventions
Alcohol administration, Placebo administration, Positive mood induction, Negative mood induction
Other · Behavioral
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
21 Years to 65 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Mar 11, 2025 · Synced Oct 25, 2026, 11:14 AM EDT
Completed Early Phase 1 Interventional

A Methodology Trial Using the VR647 Inhalation System in Pediatric Subjects Who Have Previously Received Inhaled Therapy

NCT04011709
View directory record Official record
Conditions
Cough, Wheezing
Interventions
VR647 Inhalation System + VR647 Smart Card 3 Secs, VR647 Inhalation System + VR647 Smart Card 2 Secs, VR647 Inhalation System + VR647 Smart Card 4 Secs
Combination Product
Lead sponsor
Vectura Limited
Industry
Eligibility
1 Year to 5 Years
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
5
States / cities
Mission Viejo, California • Plymouth, Minnesota • St Louis, Missouri + 2 more
Source: ClinicalTrials.gov public record
Updated Jul 8, 2019 · Synced Oct 25, 2026, 11:14 AM EDT
Not yet recruiting Not applicable Interventional

Inhaled Nitric Oxide in Severe Obesity

NCT06675435
View directory record Official record
Conditions
Obesity, Respiratory Insufficiency, Hypoxemic Respiratory Failure, Nitric Oxide
Interventions
Nitric oxide
Device
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 20, 2026 · Synced Oct 25, 2026, 11:14 AM EDT
Terminated Phase 2Phase 3 Interventional Results available

An Open Label Extension Study to Evaluate Inhaled Treprostinil in Adult PH With ILD Including CPFE

NCT02633293
View directory record Official record
Conditions
Pulmonary Hypertension, Interstitial Lung Disease, Combined Pulmonary Fibrosis and Emphysema
Interventions
Inhaled Treprostinil
Drug
Lead sponsor
United Therapeutics
Industry
Eligibility
18 Years and older
Enrollment
243 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
91
States / cities
Birmingham, Alabama • Mobile, Alabama • Phoenix, Arizona + 67 more
Source: ClinicalTrials.gov public record
Updated Dec 2, 2022 · Synced Oct 25, 2026, 11:14 AM EDT
Completed Phase 4 Interventional Results available

Ketone Monitoring in T1D: Effect of SGLT2i During Usual Care and With Insulin Deficiency

NCT05541484
View directory record Official record
Conditions
Diabetes Mellitus, Type 1
Interventions
SGLT2 inhibitor, Biosense Breath Ketone Analyzer
Drug · Device
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 75 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Feb 21, 2025 · Synced Oct 25, 2026, 11:14 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Depression, Trauma, and Health: Efficacy of an mHealth App for Symptom Self-Management in College Students

NCT04094792
View directory record Official record
Conditions
Depression
Interventions
Happify Breather App
Device
Lead sponsor
Donna Schuman
Other
Eligibility
18 Years to 45 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Jan 4, 2022 · Synced Oct 25, 2026, 11:14 AM EDT
Withdrawn No phase listed Observational

An Investigation of the Association Between Helicobacter Pylori Infection and Abdominal Pain in Cystic Fibrosis Patients

NCT00765401
View directory record Official record
Conditions
Cystic Fibrosis, Abdominal Pain, Helicobacter Pylori Infection
Interventions
Not listed
Lead sponsor
Penn State University
Other
Eligibility
5 Years to 18 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 24, 2017 · Synced Oct 25, 2026, 11:14 AM EDT
Completed Not applicable Interventional

Atrantil for Intestinal Bacterial Overgrowth

NCT04755673
View directory record Official record
Conditions
Irritable Bowel Syndrome, Bacterial Overgrowth Syndrome, SIBO
Interventions
Atrantil (Medical Food)
Other
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jan 12, 2023 · Synced Oct 25, 2026, 11:14 AM EDT