Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Oct 25, 2026, 7:25 PM EDT

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Showing 241–264 of 303 matching trials from the live ClinicalTrials.gov search.
Conditions
Asthma
Interventions
Smart Inhaler Monitoring Platform for Asthma Management
Device
Lead sponsor
Boston Children's Hospital
Other
Eligibility
10 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Completed No phase listed Observational

COVID-19 Respiratory Outcomes Registry

NCT05074875
Conditions
Covid19
Interventions
Questionnaires and Patient Reported Outcomes (PROs), Nasal Swab COVID-19 reverse transcription polymerase chain reaction test (RT-PCR), Blood Samples for Biomarkers, High Resolution Computed Tomography, Physical Exam and Vital Signs, Medical Research Council Sum Score, Hand Grip Strength, Spirometry, Diffusing Capacity of Carbon Monoxide, 6 Minute Walk Test, Sit to Stand (STS) Measurement
Other · Diagnostic Test · Genetic
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
37 participants
Timeline
2021 – 2023
U.S. locations
4
States / cities
St Louis, Missouri • New York, New York • Houston, Texas
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Normal Breathing and Swallowing in Healthy Volunteers

NCT03122145
Conditions
Healthy
Interventions
Capsaicin, Videofluoroscopic swallow study
Drug · Device
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 100 Years
Enrollment
49 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Gainesville, Florida
Conditions
Chronic Liver Disease
Interventions
Not listed
Lead sponsor
Meridian Bioscience, Inc.
Industry
Eligibility
18 Years and older
Enrollment
579 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
3
States / cities
Detroit, Michigan • Charleston, South Carolina • Richmond, Virginia
Completed Phase 1 Interventional Accepts healthy volunteers

Nutrient Sensing in the Duodenum

NCT01694004
Conditions
The Effect of LCFA on Nutrient Absorption
Interventions
Benzocaine Infusion into Duodenum
Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Nashville, Tennessee
Conditions
Alcoholism
Interventions
Perampanel, Placebo
Drug
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
21 Years to 70 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
4
States / cities
Farmington, Connecticut • New Haven, Connecticut • West Haven, Connecticut + 1 more
Conditions
Healthy
Interventions
[13C]Pantoprazole
Drug
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 49 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
1
States / cities
Indianapolis, Indiana
Conditions
Weight Loss
Interventions
NSSM and GEBT
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
22 Years to 65 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Rochester, Minnesota
Completed Not applicable Interventional Accepts healthy volunteers

Multi-Component Breath Alcohol Intervention

NCT06124898
Conditions
Alcohol Use, Alcohol Drinking, Drinking Behavior
Interventions
Alcohol-related mobile health technologies, Motivational interview and psychoeducation on blood/breath alcohol concentration, Lower tech facilitation
Device · Behavioral
Lead sponsor
Northeastern University
Other
Eligibility
18 Years to 25 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Heart Transplant Rejection
Interventions
BreathScanner 1.0, BreathLink
Device
Lead sponsor
Menssana Research, Inc.
Industry
Eligibility
18 Years and older
Enrollment
1,200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
5
States / cities
Beverly Hills, California • Stanford, California • Newark, New Jersey + 2 more
Conditions
Respiratory Distress Syndrome, Adult, Ventilator-Induced Lung Injury, Neurocognitive Dysfunction, Quality of Life, Respiration Disorders
Interventions
Ventilation Inhomogeneity, Diaphragm Ultrasound, Respiratory Inductance Plethysmography, Spirometry, Functional Residual Capacity, MIP/MEP, 6 minute walk test, Neurocognitive Testing, Emotional Health Assessment, Health Related Quality of Life, Functional Status, Respiratory Status Questionnaire
Diagnostic Test
Lead sponsor
Children's Hospital Los Angeles
Other
Eligibility
1 Month to 18 Years
Enrollment
176 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2026
U.S. locations
1
States / cities
Los Angeles, California
Conditions
Lung Cancer
Interventions
Nitric oxide breath test, Questionnaires
Procedure · Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Houston, Texas
Conditions
Cardiac Ischemia, Chest Pain, Shortness of Breath
Interventions
12-lead holter monitor application
Other
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Conditions
Pain, Postoperative, Excavatum, Pectus, Scoliosis Idiopathic
Interventions
Meditation
Behavioral
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
8 Years and older
Enrollment
600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2026
U.S. locations
1
States / cities
Cincinnati, Ohio
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
Gastric Antral Vascular Ectasia, Cirrhosis, Chronic Kidney Disease
Interventions
Gastric Emptying Breath Test
Diagnostic Test
Lead sponsor
Mayo Clinic
Other
Eligibility
19 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Rochester, Minnesota
Recruiting No phase listed Observational Accepts healthy volunteers

Identification of Breast Cancer in Breath Samples Using Trained Detection Dogs

NCT07038785
Conditions
Breast Cancer
Interventions
Breath test
Diagnostic Test
Lead sponsor
SpotitEarly
Industry
Eligibility
18 Years and older · Female only
Enrollment
1,204 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
2
States / cities
Totowa, New Jersey • Philadelphia, Pennsylvania
Recruiting Not applicable Interventional Accepts healthy volunteers

Social Facilitation of Alcohol Effects and Alcohol Misuse in Young Adults

NCT06627803
Conditions
Alcohol Consumption, Alcohol Abuse/Dependence
Interventions
Alcohol (Oral)
Drug
Lead sponsor
University of Southern California
Other
Eligibility
21 Years to 28 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2029
U.S. locations
1
States / cities
Los Angeles, California
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
Completed No phase listed Observational Accepts healthy volunteers Results available

Comparison of Pharyngeal Oxygen Delivery by Different Oxygen Masks

NCT02523586
Conditions
Hypoxemia, Trauma, Acute Myocardial Infarction
Interventions
Oxygen administration
Other
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 70 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Portland, Oregon
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
Recruiting Phase 1Phase 2 Interventional Accepts healthy volunteers

Chronic Lung Allograft Dysfunction MRI Study

NCT06406777
Conditions
Chronic Lung Allograft Dysfunction Lung MRI (CLAD)
Interventions
Spirometry, Contrast Lung Computed Tomography (CT) Scan, Oxygen enhanced magnetic resonance imaging (OE-MRI) Scan, 129Xe MRI scans
Diagnostic Test · Drug
Lead sponsor
Sean Fain
Other
Eligibility
18 Years to 80 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
1
States / cities
Iowa City, Iowa
Conditions
Breast Cancer
Interventions
dextromethorphan hydrobromide, tamoxifen citrate, high performance liquid chromatography, laboratory biomarker analysis, pharmacogenomic studies, pharmacological study, fluorescence imaging
Drug · Other · Procedure
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 120 Years · Female only
Enrollment
92 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2015
U.S. locations
2
States / cities
Scottsdale, Arizona • Rochester, Minnesota
Completed Phase 1Phase 2 Interventional Results available

Breakthrough Dyspnea Fentanyl Study in Cancer Patients

NCT01515566
Conditions
Advanced Cancers, Dyspnea
Interventions
Fentanyl, Placebo, Walking Tests, Questionnaires
Drug · Other · Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Houston, Texas