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ClinicalTrials.gov public records Last synced Oct 21, 2026, 9:13 AM EDT

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Showing 1–24 of 39 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Deep Breathing Test Clear all
Recruiting No phase listed Observational Accepts healthy volunteers

Heart Transplantation - Renewal

NCT05521399
View directory record Official record
Conditions
Transplant, Heart, Magnetic Resonance Imaging
Interventions
MRI Sequencing, MRI Testing (pediatric), MRI Testing
Diagnostic Test
Lead sponsor
Northwestern University
Other
Eligibility
Not listed
Enrollment
247 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2030
U.S. locations
2
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 24, 2026 · Synced Oct 21, 2026, 9:13 AM EDT
Active, not recruiting No phase listed Observational

Evaluating the Prevalence of Acute Hepatic Porphyria in Postural Tachycardia Syndrome

NCT05344599
View directory record Official record
Conditions
Postural Orthostatic Tachycardia Syndrome, Acute Hepatic Porphyria
Interventions
Autonomic Function Testing, Genetic Testing, Urine Testing, Blood laboratory Testing
Diagnostic Test
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
70 participants
Timeline
2022 – 2026
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 28, 2026 · Synced Oct 21, 2026, 9:13 AM EDT
Completed No phase listed Observational

Cough in Reduced True Vocal Fold Mobility

NCT02407301
View directory record Official record
Conditions
Unilateral Vocal Cord Paresis, Unilateral Vocal Cord Paralysis
Interventions
cough airflow measure, vocal tasks, true vocal fold movement, spirometry test, maximum expiratory pressure (MEP)
Other
Lead sponsor
University of Florida
Other
Eligibility
40 Years to 75 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
2
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated May 13, 2016 · Synced Oct 21, 2026, 9:13 AM EDT
Terminated Not applicable Interventional Results available

Providing Optimal PEEP During Mechanical Ventilation for Obese Patients Using Esophageal Balloon

NCT03951064
View directory record Official record
Conditions
Obesity, Morbid, Ventilator-Induced Lung Injury, Respiratory Failure
Interventions
Esophageal balloon, Intervention Spontaneous Breathing Trial (SBT) and Extubation, Control Spontaneous Breathing Trial and Extubation, Intervention Weaning after Tracheostomy, Control Weaning after Tracheostomy
Device · Procedure
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
2
States / cities
Chapel Hill, North Carolina • Greenville, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 5, 2024 · Synced Oct 21, 2026, 9:13 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of Breathing on Cognitive Performance and Stress

NCT06986135
View directory record Official record
Conditions
Stress, Acute Stress Reaction, Breathing Techniques, Cognitive Performance
Interventions
Box Breathing, Prolonged Exhalation, Normal Breathing
Other
Lead sponsor
Texas State University
Other
Eligibility
18 Years to 39 Years
Enrollment
66 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
San Marcos, Texas
Source: ClinicalTrials.gov public record
Updated May 22, 2025 · Synced Oct 21, 2026, 9:13 AM EDT
Withdrawn Early Phase 1 Interventional Accepts healthy volunteers

Health Literacy and Smoking Cessation in Low-SES Diverse Smokers - Project HALT II

NCT02942212
View directory record Official record
Conditions
Smoking Cessation
Interventions
Questionnaire, In-Depth Interviews, Breath Test, Nicotine Patches, Advice plus Phone Counseling, Advice plus Counseling Sessions, Self Assessment Questionnaires
Behavioral · Other · Drug
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
25 Years to 65 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 1, 2019 · Synced Oct 21, 2026, 9:13 AM EDT
Active, not recruiting Not applicable Interventional

Validation of Belun Ring Gen3 Deep Learning Algorithms With Subxiphoid Body Sensor

NCT06255613
View directory record Official record
Conditions
Sleep-Disordered Breathing, Sleep Architecture, Arrhythmia
Interventions
Belun Ring, Belun Cor
Device
Lead sponsor
Belun Technology Company Limited
Other
Eligibility
18 Years to 80 Years
Enrollment
79 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
2
States / cities
Chardon, Ohio • Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 30, 2026 · Synced Oct 21, 2026, 9:13 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Development Of Neuroimaging Methods To Assess The Neurobiology Of Addiction

NCT02535702
View directory record Official record
Conditions
Normal Physiology
Interventions
In vivo MRS, fMRI, EEG/EOG, Stimulation tasks, NSPRD, Structural MRI
Other
Lead sponsor
National Institute on Alcohol Abuse and Alcoholism (NIAAA)
NIH
Eligibility
18 Years and older
Enrollment
192 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2026
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 13, 2026 · Synced Oct 21, 2026, 9:13 AM EDT
Recruiting Not applicable Interventional

Development of a Personalized, Psychosocial Intervention for Menopausal Individuals With Elevated Dementia Risk

NCT06965686
View directory record Official record
Conditions
Menopausal, Dementia
Interventions
PERI-MIND
Behavioral
Lead sponsor
University of Chicago
Other
Eligibility
40 Years to 58 Years · Female only
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 5, 2026 · Synced Oct 21, 2026, 9:13 AM EDT
Recruiting Phase 1Phase 2 Interventional

Mitigating PTSD-CUD After Sexual Assault

NCT05989841
View directory record Official record
Conditions
Posttraumatic Stress Disorder, Cannabis Use Disorder
Interventions
RISE Guide, Relaxation Control
Behavioral
Lead sponsor
University of Nevada, Las Vegas
Other
Eligibility
18 Years and older · Female only
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
6
States / cities
Minneapolis, Minnesota • Las Vegas, Nevada • Chapel Hill, North Carolina + 3 more
Source: ClinicalTrials.gov public record
Updated Jan 16, 2026 · Synced Oct 21, 2026, 9:13 AM EDT
Completed No phase listed Observational

Novel Lung Imaging in Adults Undergoing Radiation Therapy to Assess for Radiation Pneumonitis

NCT02735746
View directory record Official record
Conditions
Lung Cancer, Breast Cancer, Mediastinum Lesion, Radiation Pneumonitis
Interventions
4D Computed Tomography (CT), Cone Beam CT, Low-dose Cinefluorography, Pulmonary Function Tests
Radiation · Device
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2025
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 22, 2025 · Synced Oct 21, 2026, 9:13 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

The Effect of Hatha Yoga on Mental Health

NCT05777044
View directory record Official record
Conditions
Depression, Anxiety, Mental Health Issue
Interventions
Yoga
Behavioral
Lead sponsor
Auburn University
Other
Eligibility
18 Years to 35 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Auburn, Alabama
Source: ClinicalTrials.gov public record
Updated Mar 20, 2023 · Synced Oct 21, 2026, 9:13 AM EDT
Completed Not applicable Interventional

Breastfeeding Self-Management for Nipple and Breast Pain

NCT03392675
View directory record Official record
Conditions
Breastfeeding, Breast Pain
Interventions
Self-monitoring of BF and intervention
Behavioral
Lead sponsor
University of Connecticut
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
2
States / cities
Farmington, Connecticut • Manchester, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 11, 2021 · Synced Oct 21, 2026, 9:13 AM EDT
Active, not recruiting Not applicable Interventional

Impact of Diaphragmatic Breathing Coaching on Deep Inspiration Breath Hold Reproducibility and Organ Protection

NCT06747533
View directory record Official record
Conditions
Breathing, Mouth
Interventions
CT simulation
Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 22, 2026 · Synced Oct 21, 2026, 9:13 AM EDT
Terminated Not applicable Interventional Results available

Does Optimized General Anesthesia Care Reduce Postoperative Delirium?

NCT02604459
View directory record Official record
Conditions
Hip Fractures, Anesthesia, Delirium
Interventions
cerebral oximeter (Fore-Sight), depth of anesthesia monitor (BIS), BP management, General anesthesia, propofol, fentanyl, sevoflurane
Device · Procedure · Drug
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
65 Years and older
Enrollment
145 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Oct 17, 2023 · Synced Oct 21, 2026, 9:13 AM EDT
Completed Phase 1 Interventional

T Cell Effector and Regulatory Mechanisms in Asthma

NCT01612936
View directory record Official record
Conditions
Asthma, Allergies
Interventions
Bronchoscopy, Segmental Allergen Challenge and Broncheoalveolar Lavage, PET-CT imaging(13NN perfusion/ventilation, 18FDG inflammation, and CT imaging)
Biological · Procedure
Lead sponsor
Andrew D. Luster, M.D.,Ph.D.
Other
Eligibility
18 Years to 50 Years
Enrollment
168 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 15, 2017 · Synced Oct 21, 2026, 9:13 AM EDT
Enrolling by invitation Phase 2 Interventional Accepts healthy volunteers

Assessing Covert Consciousness During Dexmedetomidine and Ketamine Sedation: An fMRI Study

NCT07705022
View directory record Official record
Conditions
Healthy, Covert Consciousness
Interventions
Dexmedetomidine (+propofol as indicated), Ketamine
Drug
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 40 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Aug 11, 2026 · Synced Oct 21, 2026, 9:13 AM EDT
Completed Phase 2 Interventional

Mind and Body Approaches to Pain Reduction in Youth With Migraine

NCT03472092
View directory record Official record
Conditions
Headache, Migraine, Migraine, Migraine Disorders, Headache
Interventions
Cognitive Behavioral Therapy (CBT), Placebo, Amitriptyline, Biofeedback-Assisted Relaxation Training (BART), Cognitive Reappraisal Training (CR)
Behavioral · Drug
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
10 Years to 17 Years
Enrollment
132 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2025
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 26, 2025 · Synced Oct 21, 2026, 9:13 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Psychophysiological Effects of Controlled Respiration and Mindfulness

NCT05304000
View directory record Official record
Conditions
Stress, Physiological, Stress, Emotional, Insomnia
Interventions
Mindfulness Meditation, Cyclic Sighing Breathing, Box Breathing, Cyclic Hyperventilation with Retention
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
108 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
2
States / cities
Palo Alto, California • Stanford, California
Source: ClinicalTrials.gov public record
Updated May 6, 2022 · Synced Oct 21, 2026, 9:13 AM EDT
Completed Not applicable Interventional Results available

Exercise and Stress Management Post Autologous and Allogeneic Transplant (BMT CTN 0902)

NCT01278927
View directory record Official record
Conditions
Physiological Stress
Interventions
Exercise, Stress Management, Exercise and Stress Management, Standard Care
Behavioral · Other
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Years and older
Enrollment
711 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
19
States / cities
Duarte, California • Gainesville, Florida • Tampa, Florida + 15 more
Source: ClinicalTrials.gov public record
Updated Dec 8, 2022 · Synced Oct 21, 2026, 9:13 AM EDT
Completed Not applicable Interventional

Support for People Undergoing Chemotherapy

NCT00740038
View directory record Official record
Conditions
Quality of Life, Cancer
Interventions
Stress Management training, Exercise Training, Usual care, Combined stress management and exercise training
Behavioral
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years and older
Enrollment
471 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2012
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Feb 23, 2017 · Synced Oct 21, 2026, 9:13 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effects and Mechanisms of Specific Trunk Exercises in Low Back Pain

NCT01611792
View directory record Official record
Conditions
Low Back Pain
Interventions
Stabilization exercise protocol, Strength and conditioning exercise protocol
Other
Lead sponsor
University of Vermont
Other
Eligibility
21 Years to 55 Years
Enrollment
58 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2008
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Oct 18, 2017 · Synced Oct 21, 2026, 9:13 AM EDT
Completed Not applicable Interventional

Field Study of a Digital Therapeutic Platform to Facilitate Treatment for Methamphetamine-Primary Stimulant Use Disorder

NCT05266716
View directory record Official record
Conditions
Methamphetamine Abuse
Interventions
Affect Methamphetamine Treatment Program
Behavioral
Lead sponsor
Affect Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
79 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 4, 2022 · Synced Oct 21, 2026, 9:13 AM EDT
Recruiting Not applicable Interventional

A Just-in-time Adaptive Intervention for Suicide Safety Planning in Adolescents

NCT07348666
View directory record Official record
Conditions
Suicide, Mental Health Disorder, Anhedonia
Interventions
ViraSafe: Treatment pushes, BRITE
Behavioral
Lead sponsor
Ksana Health
Industry
Eligibility
13 Years to 24 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
3
States / cities
Eugene, Oregon • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 12, 2026 · Synced Oct 21, 2026, 9:13 AM EDT