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Showing 1–24 of 677 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Difficulty Breathing Clear all
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Percutaneous Cryoablation of Intercostal Nerves for the Treatment of Rib Fractures

NCT06533904
View directory record Official record
Conditions
Trauma, Rib Fractures, Chest Wall Disorder, Respiratory Insufficiency, Pain, Chest, Rib Trauma, Rib Fracture Multiple, Respiratory Failure, Respiratory Distress Syndrome
Interventions
Percutaneous Cryoablation of Intercostal Nerves, Multi-modal pain regimen
Procedure · Other
Lead sponsor
Loma Linda University
Other
Eligibility
18 Years to 80 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Loma Linda, California
Source: ClinicalTrials.gov public record
Updated Feb 8, 2026 · Synced Sep 6, 2026, 4:03 PM EDT
Recruiting Not applicable Interventional

The ARISE Study - Use of Vertical Positioning

NCT07025421
View directory record Official record
Conditions
Acute Respiratory Distress Syndrome
Interventions
Intervention Upright Bed positioning
Other
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years to 80 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Aug 26, 2026 · Synced Sep 6, 2026, 4:03 PM EDT
Not listed Phase 1Phase 2 Interventional

The Use of Exosomes for the Treatment of Acute Respiratory Distress Syndrome or Novel Coronavirus Pneumonia Caused by COVID-19

NCT04798716
View directory record Official record
Conditions
Covid19, Novel Coronavirus Pneumonia, Acute Respiratory Distress Syndrome
Interventions
MSC-exosomes delivered intravenously every other day on an escalating dose: (2:4:8), MSC-exosomes delivered intravenously every other day on an escalating dose (8:4:8), MSC-exosomes delivered intravenously every other day (8:8:8)
Drug
Lead sponsor
AVEM HealthCare
Industry
Eligibility
18 Years and older
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Panorama City, California
Source: ClinicalTrials.gov public record
Updated Mar 10, 2022 · Synced Sep 6, 2026, 4:03 PM EDT
Recruiting Phase 1 Interventional

Dose-Escalation Study of Artesunate Patients With IPF

NCT05988463
View directory record Official record
Conditions
Idiopathic Pulmonary Fibrosis
Interventions
Artesuante, Placebo capsules
Drug · Other
Lead sponsor
Joseph C. Wu
Other
Eligibility
40 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Aug 10, 2026 · Synced Sep 6, 2026, 4:03 PM EDT
Terminated Phase 3 Interventional Results available

Study of Safety of QAW039 in Patients With Asthma Inadequately Controlled on Standard-of-care Asthma Treatment

NCT03052517
View directory record Official record
Conditions
Asthma
Interventions
QAW039 150 mg, QAW039 450 mg, Placebo
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
12 Years and older
Enrollment
2,538 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
46
States / cities
Birmingham, Alabama • Encinitas, California • Newport Beach, California + 41 more
Source: ClinicalTrials.gov public record
Updated Oct 11, 2020 · Synced Sep 6, 2026, 4:03 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Targeting Breathing Limitations to Improve Functional Outcomes in HFpEF

NCT05723679
View directory record Official record
Conditions
Heart Failure With Preserved Ejection Fraction, Obesity
Interventions
HeO2 gas mixture, Room air gas mixture
Other
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
55 Years to 90 Years
Enrollment
78 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2029
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated May 6, 2026 · Synced Sep 6, 2026, 4:03 PM EDT
Terminated Not applicable Interventional Results available

Assessment of Pulmonary Congestion During Cardiac Hemodynamic Stress Testing

NCT04019613
View directory record Official record
Conditions
Dyspnea, Heart Failure With Preserved Ejection Fraction
Interventions
Lung ultrasound
Diagnostic Test
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 19, 2022 · Synced Sep 6, 2026, 4:03 PM EDT
Completed Not applicable Interventional

The Effects of a Music Therapy Respiratory Protocol on Post-Covid-19 Respiratory Symptoms

NCT05231512
View directory record Official record
Conditions
Post Covid-19 Respiratory, Dyspnea, SARS-CoV 2
Interventions
Respiratory Music Therapy Protocol
Other
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
2
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 13, 2024 · Synced Sep 6, 2026, 4:03 PM EDT
Not yet recruiting No phase listed Observational

TDAP in Burn Patients (Group 2)

NCT07223684
View directory record Official record
Conditions
Sepsis, Burn Injury, Wound Healing, Critical Illness, Multiple Organ Dysfunction Syndrome
Interventions
Observational Cohort (No Intervention)
Other
Lead sponsor
Henry M. Jackson Foundation for the Advancement of Military Medicine
Other
Eligibility
18 Years to 80 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
3
States / cities
Tampa, Florida • Atlanta, Georgia • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 3, 2026 · Synced Sep 6, 2026, 4:03 PM EDT
Completed Not applicable Interventional

Mechanical Ventilation, Directed by Esophageal Pressure Measurements, in Patients With Acute Lung Injury

NCT00127491
View directory record Official record
Conditions
Acute Lung Injury, Acute Respiratory Distress Syndrome
Interventions
Placement of an esophageal balloon measurements, Low tidal volume ventilation, Transpulmonary pressure-directed ventilation (EPVent)
Procedure · Other
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years and older
Enrollment
63 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2010
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 26, 2017 · Synced Sep 6, 2026, 4:03 PM EDT
Not yet recruiting Not applicable Interventional

Respiratory Muscle Strength Training to Prevent Respiratory Muscle Weakness in Adults Newly Diagnosed With Breast Cancer

NCT07229378
View directory record Official record
Conditions
Breast Cancer
Interventions
Respiratory muscle strength training, Guided Imagery Exercises
Behavioral
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 100 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Jun 30, 2026 · Synced Sep 6, 2026, 4:03 PM EDT
Withdrawn Not applicable Interventional

Mild Hypothermia for COVID-19 ARDS

NCT04570462
View directory record Official record
Conditions
COVID19 ARDS
Interventions
Hypothermia Via Cooling Machine- Arctic Sun 5000
Other
Lead sponsor
Northwell Health
Other
Eligibility
18 Years to 100 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Manhasset, New York
Source: ClinicalTrials.gov public record
Updated Jun 28, 2021 · Synced Sep 6, 2026, 4:03 PM EDT
Terminated Phase 2 Interventional Results available

Safety and Efficacy of USB002 for Respiratory Distress Due to COVID-19

NCT04778059
View directory record Official record
Conditions
2019 Novel Coronavirus Infection, COVID-19 Virus Infection, SARS Coronavirus 2 Infection, SARS-CoV-2 Infection, Respiratory Distress Syndrome, Adult, Adult Respiratory Distress Syndrome
Interventions
USB002, Placebo
Drug
Lead sponsor
US Biotest, Inc.
Industry
Eligibility
18 Years and older
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Nov 30, 2023 · Synced Sep 6, 2026, 4:03 PM EDT
Completed Phase 2 Interventional Results available

Dexamethasone Dyspnea Study

NCT01670097
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Feb 16, 2021 · Synced Sep 6, 2026, 4:03 PM EDT
Completed No phase listed Observational

The Relationship Between Positive End Expiratory Pressure and Cardiac Index in Patients With Acute Respiratory Distress Syndrome (ARDS) Managed on a Fluid Protocol

NCT01714583
View directory record Official record
Conditions
Acute Respiratory Distress Syndrome (ARDS)
Interventions
Not listed
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
367 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Oct 25, 2012 · Synced Sep 6, 2026, 4:03 PM EDT
Not yet recruiting Phase 2 Interventional

Pressure Targeting During High Flow Therapy in Premature Infants

NCT07418502
View directory record Official record
Conditions
Preterm Infants, Respiratory Distress Syndrome (Neonatal), BPD - Bronchopulmonary Dysplasia
Interventions
Pressure Targeted High Flow, CPAP
Procedure
Lead sponsor
University of Texas at Austin
Other
Eligibility
7 Days to 40 Weeks
Enrollment
78 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
2
States / cities
San Diego, California • Austin, Texas
Source: ClinicalTrials.gov public record
Updated Feb 17, 2026 · Synced Sep 6, 2026, 4:03 PM EDT
Terminated Phase 1 Interventional

Clinical Trial of Nebulized Hypertonic Saline to Attenuate Post-Traumatic Acute Lung Injury

NCT01667666
View directory record Official record
Conditions
Acute Lung Injury, Adult Respiratory Distress Syndrome
Interventions
Nebulized hypertonic saline
Drug
Lead sponsor
Denver Health and Hospital Authority
Other
Eligibility
18 Years to 65 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2018
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Jan 7, 2019 · Synced Sep 6, 2026, 4:03 PM EDT
Completed No phase listed Observational

Verification of Pulse Oximetry in Neonatal Population

NCT00751439
View directory record Official record
Conditions
Respiratory Distress Syndrome
Interventions
Not listed
Lead sponsor
Children's Hospitals and Clinics of Minnesota
Other
Eligibility
1 Day to 30 Days
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 10, 2010 · Synced Sep 6, 2026, 4:03 PM EDT
Completed Phase 1 Interventional

A Clinical Trial to Evaluate the Safety of agenT-797 in COVID-19 Participants With ARDS

NCT04582201
View directory record Official record
Conditions
Respiratory Distress Syndrome, Adult
Interventions
agenT-797
Drug
Lead sponsor
MiNK Therapeutics
Industry
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
3
States / cities
Santa Monica, California • Louisville, Kentucky • New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 29, 2025 · Synced Sep 6, 2026, 4:03 PM EDT
Terminated Phase 2 Interventional Results available

Long-term Extension Study of the Safety and Pharmacokinetics of QCC374 in PAH Patients

NCT02939599
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
QCC374
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 4, 2021 · Synced Sep 6, 2026, 4:03 PM EDT
Withdrawn Phase 1 Interventional Accepts healthy volunteers

Infant Pulmonary Mechanics: High Flow Nasal Cannula Versus Nasal CPAP

NCT01939067
View directory record Official record
Conditions
Respiratory Distress, Lung Injury
Interventions
Heated Humidified High Flow Nasal Cannula, Nasal Continuous Positive Airway Pressure
Device
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
2 Hours to 72 Hours
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 14, 2015 · Synced Sep 6, 2026, 4:03 PM EDT
Completed Phase 2 Interventional Results available

Efficacy of Recombinant Human Clara Cell 10 Protein (rhCC10) Administered to Premature Neonates With Respiratory Distress Syndrome

NCT01941745
View directory record Official record
Conditions
Respiratory Distress Syndrome in Premature Infant, Bronchopulmonary Dysplasia
Interventions
Half normal saline, Low Dose rhCC10, High dose rhCC10
Drug
Lead sponsor
Tufts Medical Center
Other
Eligibility
24 Weeks to 29 Weeks
Enrollment
88 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
3
States / cities
Boston, Massachusetts • Springfield, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 9, 2019 · Synced Sep 6, 2026, 4:03 PM EDT
Terminated Not applicable Interventional Results available

Hyperbaric Oxygen for COVID-19 Patients

NCT04332081
View directory record Official record
Conditions
COVID-19
Interventions
hyperbaric oxygen therapy (HBOT)
Device
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Mineola, New York
Source: ClinicalTrials.gov public record
Updated Jun 21, 2021 · Synced Sep 6, 2026, 4:03 PM EDT
Terminated Phase 2Phase 3 Interventional Results available

Drug Study of Albuterol to Treat Acute Lung Injury

NCT00434993
View directory record Official record
Conditions
Respiratory Distress Syndrome, Adult
Interventions
Albuterol Sulfate, Mini-Bronchoalveolar Lavage (BAL), Placebo
Drug · Procedure
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
13 Years and older
Enrollment
282 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
40
States / cities
Fresno, California • Sacramento, California • San Francisco, California + 19 more
Source: ClinicalTrials.gov public record
Updated Feb 9, 2017 · Synced Sep 6, 2026, 4:03 PM EDT