Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Sep 12, 2026, 12:10 PM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Asthma, Asthma in Children
Interventions
Vivatmo pro FeNO Test
Diagnostic Test
Lead sponsor
Bosch Healthcare Solutions GmbH
Industry
Eligibility
7 Years to 80 Years
Enrollment
122 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
6
States / cities
Birmingham, Alabama • Bakersfield, California • White Marsh, Maryland + 3 more
Conditions
COVID-19, SARS CoV 2 Virus, COVID-19 Pneumonia, COVID-19 Respiratory Infection, COVID-19 Acute Respiratory Distress Syndrome
Interventions
A&M Breathalyzer PROTECT Kiosk
Device
Lead sponsor
The Geneva Foundation
Other
Eligibility
18 Years to 89 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Fort Sam Houston, Texas
Completed Phase 1 Interventional Accepts healthy volunteers

Cough According to Stimulus Type in PD

NCT02390089
Conditions
Parkinson's Disease
Interventions
Capsaicin vapor, fog, Videofluoroscopic swallow evaluation, Nebulizer
Drug · Other · Radiation + 1 more
Lead sponsor
University of Florida
Other
Eligibility
50 Years to 80 Years
Enrollment
158 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2019
U.S. locations
1
States / cities
Gainesville, Florida
Terminated No phase listed Observational Accepts healthy volunteers

Cue Reactivity in Virtual Reality: The Role of Context

NCT00862927
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
Recruiting Phase 3 Interventional Accepts healthy volunteers

PyloPlus Urea Breath Test System Pediatric Safety and Efficacy Study

NCT05276557
Conditions
Helicobacter Pylori, Safety, Efficacy
Interventions
PyloPlus Urea Breath Test System, Stool Antigen Test
Combination Product · Diagnostic Test
Lead sponsor
ARJ Medical, Inc.
Industry
Eligibility
3 Years to 17 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
3
States / cities
Doral, Florida • Orlando, Florida • El Paso, Texas
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of Juice Types on the Responses to Air Pollution

NCT02027415
Conditions
Air Pollution
Interventions
Beet juice, Orange juice
Dietary Supplement
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years to 40 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Piscataway, New Jersey
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

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

NCT07564648
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
Conditions
Chronic Constipation, Methanogenesis
Interventions
Lubiprostone, Lubiprostone Control
Drug
Lead sponsor
Augusta University
Other
Eligibility
18 Years and older
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
2
States / cities
Iowa City, Iowa • Salt Lake City, Utah
Conditions
Helicobacter Pylori Infection
Interventions
Breath Test Collection bags
Other
Lead sponsor
Meridian Bioscience, Inc.
Industry
Eligibility
18 Years and older
Enrollment
193 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
9
States / cities
Baltimore, Maryland • Chevy Chase, Maryland • Detroit, Michigan + 6 more
Completed No phase listed Observational Accepts healthy volunteers

Sucrose Breath Test to Determine Intestinal Permeability in IBS

NCT01674088
Conditions
Irritable Bowel Syndrome
Interventions
Not listed
Lead sponsor
Metabolic Solutions Inc.
Industry
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Gainesville, Florida
Completed Phase 1 Interventional Accepts healthy volunteers

Fish Oil vs. Placebo on Subjective Effects of Alcohol

NCT03010917
Conditions
Alcohol Dependence
Interventions
Fish Oil with ethanol and placebo ethanol infusions, Placebo with ethanol and placebo ethanol infusions
Drug
Lead sponsor
Yale University
Other
Eligibility
21 Years to 55 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
1
States / cities
West Haven, Connecticut
Conditions
Dyspnea
Interventions
Shortness of breath recognition and treatment
Behavioral
Lead sponsor
Wayne State University
Other
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Livonia, Michigan
Terminated No phase listed Observational Accepts healthy volunteers

NanoSpectrometer Biomarker Discovery and Confirmation Study

NCT03275688
Conditions
Lung Cancer
Interventions
Breath Analysis
Diagnostic Test
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
332 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
1
States / cities
Baltimore, Maryland
Conditions
Chronic Thromboembolic Disease (CTED), Exercise Intolerance Post PEA Surgery
Interventions
Adempas
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 100 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2026
U.S. locations
1
States / cities
Aurora, Colorado
Completed Phase 2 Interventional Results available

Dexamethasone Dyspnea Study

NCT01670097
Conditions
Advanced Cancers, Hematologic Disorder, Solid Tumors
Interventions
Dexamethasone, Placebo, Questionnaires, Spirometer, Phone Calls
Drug · Behavioral · Device + 1 more
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2021
U.S. locations
1
States / cities
Houston, Texas
Conditions
Asthma
Interventions
NIOX MINO® Instrument (09-1100)
Device
Lead sponsor
Aerocrine AB
Industry
Eligibility
7 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012
U.S. locations
8
States / cities
Blue Bell, Pennsylvania • Collegeville, Pennsylvania • Doylestown, Pennsylvania + 5 more
Completed Not applicable Interventional Accepts healthy volunteers

ABCA2 GIRMS Analytical Validation Clinical Performance Study

NCT04607304
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
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

Can You Breathe Your Way To Better Health?

NCT06829836
Conditions
Cancer, Chronic Stress, Autonomic Dysfunction
Interventions
Hight intensity interval training, Cyclic Hyperventilation with Retention
Behavioral
Lead sponsor
University of Northern Colorado
Other
Eligibility
18 Years to 50 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Greeley, Colorado
Conditions
Tobacco Use Cessation
Interventions
web-based video game (Quit IT), Questionnaires, Evaluation Interview
Other · Behavioral
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
30 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2011
U.S. locations
1
States / cities
New York, New York
Terminated Early Phase 1 Interventional Results available

Effect of a Low FODMAP Diet on SIBO Breath Test Positivity

NCT04627727
Conditions
SIBO
Interventions
low FODMAP diet
Other
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
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
Conditions
Radiation Injury
Interventions
Not listed
Lead sponsor
Menssana Research, Inc.
Industry
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
3
States / cities
Atlanta, Georgia • Hackensack, New Jersey • New York, New York
Recruiting Not applicable Interventional Accepts healthy volunteers

Breath Analysis & Malnutrition

NCT06115148
Conditions
Malnutrition
Interventions
Feeding, Fasting
Other
Lead sponsor
Pennington Biomedical Research Center
Other
Eligibility
18 Years to 95 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Completed Not applicable Interventional Accepts healthy volunteers

Study of Affect Induction for Lab Induced Pain in Healthy Undergraduates

NCT05619419
Conditions
Meditation, Pain, Mindfulness, Affect, Emotion Regulation
Interventions
Mindfulness-enhanced positive affect induction, Breathing Meditation
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 65 Years
Enrollment
180 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Denver, Colorado