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Showing 1–24 of 3,973 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Breathing Clear all
Completed Phase 2 Interventional

Continuous Positive Airway Pressure for the Treatment of Stroke

NCT00368628
View directory record Official record
Conditions
Acute Ischemic Stroke, Sleep Apnea
Interventions
continuous positive airway pressure
Procedure
Lead sponsor
Yale University
Other
Eligibility
50 Years and older
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2008
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 2, 2009 · Synced Jul 21, 2026, 6:10 PM EDT
Completed Phase 3 Interventional Results available

A Comparison of SYMBICORT® pMDI With Formoterol Turbuhaler® in Subjects With COPD

NCT00419744
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease
Interventions
Budesonide/formoterol (SYMBICORT) pMDI, Formoterol Turbuhaler
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
40 Years and older
Enrollment
1,200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
92
States / cities
Jasper, Alabama • Mobile, Alabama • Tucson, Arizona + 89 more
Source: ClinicalTrials.gov public record
Updated Sep 15, 2010 · Synced Jul 21, 2026, 6:10 PM EDT
Not yet recruiting Phase 1Phase 2 Interventional

Impact of Exogenous Ketones on Sleep Apnea

NCT06687655
View directory record Official record
Conditions
Obstructive Sleep Apnea, Sleep
Interventions
Ketone-IQ, Placebo
Dietary Supplement
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 9, 2025 · Synced Jul 21, 2026, 6:10 PM EDT
Recruiting Not applicable Interventional

Spinal Cord Stimulation for Respiratory Rehabilitation in Patients With Chronic Spinal Cord Injury

NCT06019949
View directory record Official record
Conditions
Spinal Cord Injuries, Respiration Disorders
Interventions
Transcutaneous spinal cord stimulator, Respiratory Training
Device
Lead sponsor
University of Louisville
Other
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2030
U.S. locations
1
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated Mar 12, 2026 · Synced Jul 21, 2026, 6:10 PM EDT
Terminated Not applicable Interventional Results available

OSA Screen Negative With Spinal Duramorph

NCT03151226
View directory record Official record
Conditions
Respiratory Depression
Interventions
Capnography monitoring
Device
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 6, 2018 · Synced Jul 21, 2026, 6:10 PM EDT
Recruiting Not applicable Interventional

Impact of Intraoperative Oxygenation Practices on Patient Outcomes

NCT07224243
View directory record Official record
Conditions
Surgeries Undergoing General Anesthesia
Interventions
Lower FiO2, Intermediate FiO2, Higher FiO2
Other
Lead sponsor
Frederic T Billings IV
Other
Eligibility
18 Years and older
Enrollment
54,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
4
States / cities
Ann Arbor, Michigan • Omaha, Nebraska • Nashville, Tennessee + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 9, 2026 · Synced Jul 21, 2026, 6:10 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Inspiratory Muscle Strength Training for Lowering Blood Pressure and Improving Endothelial Function in Postmenopausal Women: Comparison With "Standard of Care" Aerobic Exercise

NCT05000515
View directory record Official record
Conditions
Aging, Blood Pressure, Endothelial Dysfunction, Hypertension
Interventions
High-resistance inspiratory muscle strength training, Aerobic exercise
Other
Lead sponsor
University of Colorado, Boulder
Other
Eligibility
50 Years and older · Female only
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
1
States / cities
Boulder, Colorado
Source: ClinicalTrials.gov public record
Updated Jan 13, 2026 · Synced Jul 21, 2026, 6:10 PM EDT
Recruiting Phase 3 Interventional

AMAZE 4: A Research Study Investigating How Well the Medicine NNC0487-0111 Helps People With Excess Body Weight and Obstructive Sleep Apnoea Treated With Positive Airway Pressure Lose Weight and Improve Sleep Apnoea

NCT07571109
View directory record Official record
Conditions
Obesity, Overweight, Obstructive Sleep Apnoea
Interventions
NNC0487-0111, Placebo (matched to NNC0487-0111)
Drug
Lead sponsor
Novo Nordisk A/S
Industry
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
20
States / cities
Gilbert, Arizona • Bradenton, Florida • Naples, Florida + 16 more
Source: ClinicalTrials.gov public record
Updated Jul 12, 2026 · Synced Jul 21, 2026, 6:10 PM EDT
Completed Not applicable Interventional Results available

Pilot Study of a Self-Supporting Nasopharyngeal Airway in Hypotonia

NCT04846400
View directory record Official record
Conditions
Sleep Apnea, Obstructive, Hypotonia, Child, Only
Interventions
ssNPA
Device
Lead sponsor
University of Michigan
Other
Eligibility
3 Years to 21 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Dec 27, 2023 · Synced Jul 21, 2026, 6:10 PM EDT
Withdrawn No phase listed Observational

Assessing Respiratory Variability During Mechanical Ventilation in Acute Lung Injury (ALI)

NCT01083355
View directory record Official record
Conditions
Acute Lung Injury, Adult Respiratory Distress Syndrome
Interventions
Not listed
Lead sponsor
Boston Medical Center
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 29, 2016 · Synced Jul 21, 2026, 6:10 PM EDT
Completed Not applicable Interventional Results available

Inhaled Nitric Oxide (iNO) as an Adjunct to Neonatal Resuscitation

NCT01220687
View directory record Official record
Conditions
Respiratory Distress Syndrome in Premature Infants, Very Low Birth Weight Baby
Interventions
iNO, Nitrogen
Drug · Other
Lead sponsor
University of Oklahoma
Other
Eligibility
1 Minute to 2 Minutes
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2017
U.S. locations
2
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Aug 18, 2020 · Synced Jul 21, 2026, 6:10 PM EDT
Active, not recruiting Phase 2Phase 3 Interventional

An Extension Study of Treprostinil Palmitil Inhalation Powder (TPIP) for Pulmonary Arterial Hypertension (PAH)

NCT05649748
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Treprostinil Palmitil, Placebo
Drug
Lead sponsor
Insmed Incorporated
Industry
Eligibility
18 Years and older
Enrollment
91 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
6
States / cities
Jacksonville, Florida • Tampa, Florida • Chicago, Illinois + 2 more
Source: ClinicalTrials.gov public record
Updated Jul 7, 2026 · Synced Jul 21, 2026, 6:10 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Early Dental Risk Screening for Pediatric Sleep-Disordered Breathing

NCT07581938
View directory record Official record
Conditions
Early Risk Screening for Sleep Disordered Breathing in a Dental Setting, Sleep Disordered Breathing (SDB), Obstructive Sleep Apnea (OSA)
Interventions
SleepImage Ring
Device
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
8 Years to 13 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Jul 21, 2026, 6:10 PM EDT
Completed Phase 2 Interventional Results available

Propranolol for Sleep Apnea Therapy

NCT03049306
View directory record Official record
Conditions
Obstructive Sleep Apnea
Interventions
Propranolol Oral Tablet, Placebo Oral Tablet
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
20 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2024
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 4, 2024 · Synced Jul 21, 2026, 6:10 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Comparing the Effects of Pelvic Alignment Versus Diaphragmatic Breathing on Shoulder Range of Motion

NCT04255355
View directory record Official record
Conditions
Glenohumeral Internal Rotation Deficit, Pelvic Misalignment, Diaphragmatic Breathing
Interventions
Pelvic alignment and forceful expiration, Pelvic repositioning exercise, Diaphragmatic breathing exercise
Other
Lead sponsor
University of North Georgia
Other
Eligibility
18 Years to 40 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Dahlonega, Georgia
Source: ClinicalTrials.gov public record
Updated Mar 30, 2020 · Synced Jul 21, 2026, 6:10 PM EDT
Enrolling by invitation No phase listed Observational

Predicting Cardiometabolic Risk in Mild-to-Moderate Obstructive Sleep Apnea: Inflammation vs. Apnea/Hypopnea Index

NCT03062748
View directory record Official record
Conditions
Obstructive Sleep Apnea
Interventions
Not listed
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
18 Years and older
Enrollment
196 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2027
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 22, 2026 · Synced Jul 21, 2026, 6:10 PM EDT
Completed Not applicable Interventional Results available

A Multicenter, Open Label, Prospective, Non-randomized Study of the InCraft® Stent Graft System in Subjects With Abdominal Aortic Aneurysms (INSPIRATION)

NCT01664078
View directory record Official record
Conditions
Abdominal Aortic Aneurysm
Interventions
Endovascular AAA repair with InCraft®
Device
Lead sponsor
Cordis US Corp.
Industry
Eligibility
20 Years and older
Enrollment
190 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2018
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 2, 2024 · Synced Jul 21, 2026, 6:10 PM EDT
Not listed Early Phase 1 Interventional

Improving Outcomes in Cardiac Arrest With Inhaled Nitric Oxide

NCT04134078
View directory record Official record
Conditions
Cardiac Arrest
Interventions
inhaled nitric oxide
Drug
Lead sponsor
Stony Brook University
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2022
U.S. locations
1
States / cities
South Setauket, New York
Source: ClinicalTrials.gov public record
Updated Oct 20, 2019 · Synced Jul 21, 2026, 6:10 PM EDT
Completed Phase 2 Interventional Results available

A Phase II Randomized Trial of Fish Oil in Patients With Acute Lung Injury (ALI)

NCT00351533
View directory record Official record
Conditions
Respiratory Distress Syndrome, Adult, Acute Lung Injury, Acute Respiratory Distress Syndrome
Interventions
Fish oil (eicosapentaenoic acid and docosahexanoic acid)
Drug
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
4
States / cities
Boise, Idaho • Portland, Oregon • Burlington, Vermont + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 2, 2011 · Synced Jul 21, 2026, 6:10 PM EDT
Completed Not applicable Interventional

PAV vs Assist Control After Failed SBT

NCT02773433
View directory record Official record
Conditions
Weaning Mode Comparison
Interventions
Proportional Assist Ventilation
Other
Lead sponsor
University of Louisville
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016
U.S. locations
1
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated Dec 6, 2016 · Synced Jul 21, 2026, 6:10 PM EDT
Active, not recruiting No phase listed Observational

Long Term Outcomes of Patients With COVID-19

NCT04360538
View directory record Official record
Conditions
Critical Illness, Corona Virus Infection, Respiratory Failure, Covid-19
Interventions
Quality of Life, Impact Event Score, Hospital anxiety and depression scale
Other
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 12, 2026 · Synced Jul 21, 2026, 6:10 PM EDT
Recruiting Not applicable Interventional

Effect of Hypercapnia Treatment on Respiratory Recovery After Spinal Cord Injury

NCT05536076
View directory record Official record
Conditions
Sleep Apnea, SCI/D, Hypercapnia
Interventions
Hypercapnia treatment
Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 89 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Apr 1, 2026 · Synced Jul 21, 2026, 6:10 PM EDT
Completed No phase listed Observational

IPV and Lung Compliance in Invasively Ventilated Children

NCT06836050
View directory record Official record
Conditions
Pediatric Acute Respiratory Distress Syndrome (PARDS), Pediatric Respiratory Diseases, Lung Compliance
Interventions
Not listed
Lead sponsor
Northwell Health
Other
Eligibility
0 Days to 18 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
New Hyde Park, New York
Source: ClinicalTrials.gov public record
Updated Jun 15, 2026 · Synced Jul 21, 2026, 6:10 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

Universal Anti-Viral Vaccine for Healthy Elderly Adults

NCT04441047
View directory record Official record
Conditions
Virus Diseases, Pneumonia, COVID-19 Respiratory Infection, RSV Pneumonia, Influenza, Human, ARDS, Human
Interventions
AlloStim
Drug
Lead sponsor
Mirror Biologics, Inc.
Industry
Eligibility
65 Years and older
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
4
States / cities
Delray Beach, Florida • Miami, Florida • Tampa, Florida + 1 more
Source: ClinicalTrials.gov public record
Updated Jan 13, 2025 · Synced Jul 21, 2026, 6:10 PM EDT