Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Jun 26, 2026, 5:35 PM EDT

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Showing 1–24 of 159 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Obesity, Pulmonary Disease, Dyspnea
Interventions
Not listed
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
65 Years to 85 Years
Enrollment
76 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Conditions
Asthma in Children, Dyspnea; Asthmatic, Obesity, Childhood
Interventions
Control, Albuterol
Other · Drug
Lead sponsor
Ohio State University
Other
Eligibility
9 Years to 17 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Columbus, Ohio
Conditions
Asthma
Interventions
Inspiratory muscle training (IMT), Exercise alone, IMT and Exercise
Behavioral
Lead sponsor
Duke University
Other
Eligibility
10 Years to 17 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Durham, North Carolina
Conditions
Respiratory Impairment, Elevated Blood Pressure, Physical Inactivity
Interventions
Increased lifestyle walking (intervention), Health education only (control)
Other
Lead sponsor
Iowa State University
Other
Eligibility
65 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Ames, Iowa
Conditions
Chronic Obstructive Pulmonary Disease
Interventions
walking on incline or walking at increasing speed for 36 visits
Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
45 Years to 80 Years
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Omaha, Nebraska
Conditions
Burnout, Healthcare Workers, Breathing Exercises
Interventions
Structured Breathing
Behavioral
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 85 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
4
States / cities
Albert Lea, Minnesota • Mankato, Minnesota • Eau Claire, Wisconsin + 1 more
Conditions
Hypertrophic Cardiomyopathy
Interventions
Eleclazine, Placebo
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years to 65 Years
Enrollment
172 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
26
States / cities
Los Angeles, California • Stanford, California • New Haven, Connecticut + 16 more
Conditions
Systemic Sclerosis, Shortness of Breath, Pulmonary Hypertension
Interventions
Ambrisentan
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 80 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Los Angeles, California
Conditions
COPD, Chronic Obstructive Pulmonary Disease, Dyspnea, Breathlessness, Emphysema, Chronic Bronchitis
Interventions
Melodica Intervention, Pulmonary Health Education
Behavioral
Lead sponsor
VA Quality Enhancement Research Intiative
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Indianapolis, Indiana
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
Completed Not applicable Interventional Accepts healthy volunteers

Breathing Training to Improve Human Performance at High Altitude

NCT03530163
Conditions
Mountain Sickness Acute
Interventions
Respiratory Muscle Training, Sham Breathing Training
Device
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 45 Years · Male only
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Aurora, Colorado
Conditions
Hypertension, Pulmonary, Altitude Sickness
Interventions
Riociguat
Drug
Lead sponsor
Richard Moon
Other
Eligibility
18 Years to 40 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Durham, North Carolina
Completed Not applicable Interventional Accepts healthy volunteers

Diaphragm Structure and Function in Children

NCT06230692
Conditions
Respiratory Muscle Training
Interventions
POWERbreathe Plus IMT
Device
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
6 Years to 12 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Baltimore, Maryland
Conditions
ALS, Respiratory Insufficiency, Dysphagia
Interventions
Respiratory Muscle Strength Training (LVR+EMST)
Device
Lead sponsor
Nova Southeastern University
Other
Eligibility
18 Years to 90 Years
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Fort Lauderdale, Florida
Recruiting No phase listed Observational Accepts healthy volunteers

The Lake Nona Life Project

NCT02533804
Conditions
Health Behavior, Quality of Life, Aging
Interventions
Not listed
Lead sponsor
University of Central Florida
Other
Eligibility
18 Years to 110 Years
Enrollment
10,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2025
U.S. locations
1
States / cities
Orlando, Florida
Completed No phase listed Observational Results available

BRAIN, Symptoms, and Physical Activity in COPD

NCT04291131
Conditions
COPD, Chronic Musculoskeletal Pain
Interventions
Not listed
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
40 Years and older · Male only
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Sepsis
Interventions
Muscle stimulation with Niveus medical stimulator, measurement of maximal isometric twitch strength, Muscle Biopsy, Muscle Biopsy Medication: Lidocaine, Muscle Biopsy Medication: Versed, Muscle Biopsy Medication: Fentanyl, Blood and Urine Sampling, ineffective muscle stimulation
Device · Procedure · Drug + 1 more
Lead sponsor
University of Florida
Other
Eligibility
18 Years and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Gainesville, Florida
Conditions
Pulmonary Arterial Hypertension
Interventions
Drug: RT234 - vardenafil inhalation powder; Device: Axially Oscillating Sphere dry powder inhaler (AOS DPI)
Combination Product
Lead sponsor
Respira Therapeutics, Inc.
Industry
Eligibility
18 Years to 80 Years
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
26
States / cities
Birmingham, Alabama • Tucson, Arizona • Los Angeles, California + 22 more
Conditions
Chest Pain, Shortness of Breath
Interventions
Echocardiogram
Diagnostic Test
Lead sponsor
Duke University
Other
Eligibility
50 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Durham, North Carolina
Conditions
Chronic Obstructive Pulmonary Disease
Interventions
NVA237, Placebo
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
40 Years and older
Enrollment
108 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Spartanburg, South Carolina
Completed Not applicable Interventional Accepts healthy volunteers

Breathing Exercises for Asthma

NCT02151422
Conditions
Asthma
Interventions
Breathing exercise
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 65 Years
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
Ann Arbor, Michigan
Conditions
Anesthesia and Analgesia
Interventions
Diaphragmatic Breathing
Behavioral
Lead sponsor
University of Southern California
Other
Eligibility
50 Years to 90 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
Los Angeles, California
Conditions
Uncontrolled Hypertension
Interventions
Class instruction of breathing exercises, DVD instruction of breathing exercises, Control
Behavioral
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
22 Years and older
Enrollment
103 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Columbia, Missouri
Conditions
Advanced Cancers
Interventions
Fentanyl Pectin Nasal Spray, Placebo Nasal Spray, Walk Test, Questionnaires, Mental Ability Tests
Drug · Other · Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2019
U.S. locations
1
States / cities
Houston, Texas