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ClinicalTrials.gov public records Last synced Sep 8, 2026, 5:37 PM EDT

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Showing 1–24 of 523 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Respiratory Function Impaired Clear all
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Supplemental Oxygen and Oxygen Desaturations in Colonoscopies

NCT07515755
View directory record Official record
Conditions
Oxygen Desaturation, Apnea (Central and Obstructive), Airway Obstruction
Interventions
Breath-synchronized oxygen, CPAP, Control
Device
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
280 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
South Jordan, Utah
Source: ClinicalTrials.gov public record
Updated Apr 6, 2026 · Synced Sep 8, 2026, 5:37 PM EDT
Completed Phase 2Phase 3 Interventional Results available

Intravenous Aviptadil for Critical COVID-19 With Respiratory Failure

NCT04311697
View directory record Official record
Conditions
Critical COVID-19 With Respiratory Failure, Acute Respiratory Distress Syndrome (ARDS), Corona Virus Infection, Acute Lung Injury
Interventions
Aviptadil by intravenous infusion + standard of care, Normal Saline Infusion + standard of care
Drug
Lead sponsor
APR Applied Pharma Research s.a.
Other
Eligibility
18 Years to 100 Years
Enrollment
203 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
10
States / cities
Fullerton, California • Irvine, California • Miami, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Jul 23, 2023 · Synced Sep 8, 2026, 5:37 PM EDT
Enrolling by invitation Not applicable Interventional

Long-term Evaluation of Nasopharyngeal Airway in Hypotonia

NCT06614582
View directory record Official record
Conditions
Hypotonia, Muscle, Obstructive Sleep Apnea, Nasal Airway Obstruction
Interventions
Self-Supporting Nasopharyngeal Airway (ssNPA)
Device
Lead sponsor
University of Michigan
Other
Eligibility
3 Years to 23 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Dec 1, 2025 · Synced Sep 8, 2026, 5:37 PM EDT
Terminated Phase 2 Interventional

Pemziviptadil (PB1046), a Long-acting, Sustained Release Human VIP Analogue, Intended to Provide Clinical Improvement to Hospitalized COVID-19 Patients at High Risk for Rapid Clinical Deterioration and Acute Respiratory Distress Syndrome (ARDS).

NCT04433546
View directory record Official record
Conditions
Acute Respiratory Distress Syndrome, Coronavirus, Hypoxic Respiratory Failure, Hypoxemic Respiratory Failure, Respiratory Complication, Respiratory Insufficiency, Cardiac Dysfunction, Pneumonia, Pulmonary Edema, Pulmonary Inflammation, Respiratory Failure, Cytokine Storm, COVID 19, SARS-CoV-2, Cardiac Event, Cardiac Complication, Cardiac Failure, Cardiac Infarct
Interventions
Pemziviptadil (PB1046), Low Dose (10 mg) Control
Drug
Lead sponsor
PhaseBio Pharmaceuticals Inc.
Industry
Eligibility
18 Years to 85 Years
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
4
States / cities
Jacksonville, Florida • Sarasota, Florida • Kansas City, Kansas + 1 more
Source: ClinicalTrials.gov public record
Updated Dec 10, 2020 · Synced Sep 8, 2026, 5:37 PM EDT
Recruiting Not applicable Interventional

Effect of Thickened Feeds on Swallow Physiology in Children With Dysphagia

NCT04504227
View directory record Official record
Conditions
Dysphagia, Aspiration, Brief Resolved Unexplained Event (BRUE), Apparent Life Threatening Event (ALTE)
Interventions
Thin liquid swallows, Slightly thickened liquid swallows, Mildly thickened liquid swallows, Moderately thickened liquid swallows
Dietary Supplement
Lead sponsor
Boston Children's Hospital
Other
Eligibility
Up to 21 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 17, 2026 · Synced Sep 8, 2026, 5:37 PM EDT
Recruiting Phase 3 Interventional

Precision Ventilation vs Standard Care for Acute Respiratory Distress Syndrome

NCT06066502
View directory record Official record
Conditions
Acute Respiratory Distress Syndrome, Respiratory Failure
Interventions
Precision ventilation, Guided usual care ventilation
Other
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years and older
Enrollment
1,100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2030
U.S. locations
33
States / cities
Tucson, Arizona • Little Rock, Arkansas • La Jolla, California + 25 more
Source: ClinicalTrials.gov public record
Updated Jun 28, 2026 · Synced Sep 8, 2026, 5:37 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Intranasal Capsaicin Treatment for Non-Allergic Irritant Rhinitis

NCT02493257
View directory record Official record
Conditions
Nonallergic Irritant Rhinitis
Interventions
Capsaicin, Placebo
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 70 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2019
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 16, 2020 · Synced Sep 8, 2026, 5:37 PM EDT
Completed Not applicable Interventional Results available

Non-Invasive Ventilation Via a Helmet Device for Patients Respiratory Failure

NCT01680783
View directory record Official record
Conditions
Acute Respiratory Distress Syndrome, Shock, Ventilatory Failure, Cardiogenic Pulmonary Edema
Interventions
Non invasive ventilation using a helmet hyperbaric device, Noninvasive ventilation via facemask
Device · Other
Lead sponsor
University of Chicago
Other
Eligibility
18 Years to 100 Years
Enrollment
83 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 13, 2020 · Synced Sep 8, 2026, 5:37 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Impact of High-Flow Nasal Cannula on Swallow Function

NCT03590457
View directory record Official record
Conditions
Swallowing Disorder, Respiratory Insufficiency
Interventions
Airvo 2; High-Flow nasal cannula system
Device
Lead sponsor
Rush University Medical Center
Other
Eligibility
21 Years and older
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 26, 2022 · Synced Sep 8, 2026, 5:37 PM EDT
Not listed No phase listed Observational

Regional Lung Inflammation and Expansion in Mechanically Ventilated Patients - a PET/CT Study

NCT01806532
View directory record Official record
Conditions
Respiratory Failure
Interventions
Not listed
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 29, 2017 · Synced Sep 8, 2026, 5:37 PM EDT
Terminated Phase 2 Interventional Results available

Self-Propelled Percutaneous Endoscopic GastroJejunostomy (PEG-J)

NCT01551095
View directory record Official record
Conditions
GERD
Interventions
PEGJ tube
Device
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 90 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 30, 2017 · Synced Sep 8, 2026, 5:37 PM EDT
Recruiting Phase 2 Interventional

A Study to Learn About the Study Medicine Called PF-07275315 in People With Moderate-To-Severe Asthma

NCT06977581
View directory record Official record
Conditions
Asthma
Interventions
PF-07275315, Placebo
Drug · Other
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 70 Years
Enrollment
252 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
36
States / cities
Mobile, Alabama • Chandler, Arizona • Lancaster, California + 29 more
Source: ClinicalTrials.gov public record
Updated May 3, 2026 · Synced Sep 8, 2026, 5:37 PM EDT
Not listed No phase listed Observational

Effect of Randomization to Neuromuscular Blockade on Physical Functional Impairment and Recovery in ARDS

NCT03038906
View directory record Official record
Conditions
Acute Respiratory Distress Syndrome, Neuromyopathies
Interventions
Not listed
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
290 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jan 31, 2017 · Synced Sep 8, 2026, 5:37 PM EDT
Terminated Not applicable Interventional

Telemedicine for Improving Outcome in Inner City Patient Population With Hypercapneic Respiratory Failure

NCT03353064
View directory record Official record
Conditions
Hypercapnic Respiratory Failure, Chronic Obstructive Pulmonary Disease, Obesity Hypoventilation Syndrome, Sleep Disordered Breathing, Neuromuscular Diseases
Interventions
Vivify, EMS
Other
Lead sponsor
Albert Einstein Healthcare Network
Other
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 28, 2018 · Synced Sep 8, 2026, 5:37 PM EDT
Completed Phase 2 Interventional Results available

Vitamin D in Ventilated ICU Patients

NCT01372995
View directory record Official record
Conditions
Respiratory Failure
Interventions
Enteral Vitamin D3 50,000 IU, Enteral Vitamin D3 100,000IU, Inactive substance
Drug · Other
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
2
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jan 8, 2017 · Synced Sep 8, 2026, 5:37 PM EDT
Recruiting No phase listed Observational

Body Composition Related Evaluation of Airway Tone and Hyper-rEactivity Using Oscillometry

NCT07356310
View directory record Official record
Conditions
Breathing, Lung Function Decreased, Asthma (Diagnosis), Obesity
Interventions
Oscillometer
Device
Lead sponsor
University of Rochester
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Apr 12, 2026 · Synced Sep 8, 2026, 5:37 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

A New Treatment for Mechanical Nasal Obstruction

NCT03456115
View directory record Official record
Conditions
Nasal Obstruction
Interventions
Mechanical nasal dilator
Device
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2022
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 17, 2023 · Synced Sep 8, 2026, 5:37 PM EDT
Recruiting No phase listed Observational

Phrenic Nerve Reconstruction for the Treatment of Diaphragmatic Paralysis: Patient Experiences and Reported Outcomes.

NCT06243718
View directory record Official record
Conditions
Diaphragmatic Paralysis, Pain, Chest, Breath Shortness
Interventions
Not listed
Lead sponsor
Advanced Reconstructive Surgery Alliance
Government
Eligibility
18 Years to 70 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
2
States / cities
Red Bank, New Jersey • Shrewsbury, New Jersey
Source: ClinicalTrials.gov public record
Updated Feb 5, 2024 · Synced Sep 8, 2026, 5:37 PM EDT
Not listed Not applicable Interventional

Peer Support for Post Intensive Care Syndrome Self-Management

NCT03788096
View directory record Official record
Conditions
Critical Illness, Sepsis, Shock, Septic, Shock, Respiratory Failure, Respiratory Distress Syndrome, Adult, Shock, Hypovolemic, Chronic Disease
Interventions
Peer Support with Motivational Interviewing, Usual Care Group
Behavioral
Lead sponsor
University of Texas at Austin
Other
Eligibility
18 Years to 65 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Temple, Texas
Source: ClinicalTrials.gov public record
Updated Nov 1, 2020 · Synced Sep 8, 2026, 5:37 PM EDT
Withdrawn Phase 1 Interventional

Inhaled Treatment for Bronchopulmonary Dysplasia

NCT04619602
View directory record Official record
Conditions
Bronchopulmonary Dysplasia
Interventions
GSNO
Drug
Lead sponsor
University Hospitals Cleveland Medical Center
Other
Eligibility
29 Days to 365 Days
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 21, 2025 · Synced Sep 8, 2026, 5:37 PM EDT
Terminated No phase listed Observational

Identifying Novel Aging Targets for Treatment of Delirium

NCT03682874
View directory record Official record
Conditions
Delirium, Dementia Alzheimers, Respiratory Failure
Interventions
Not listed
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
55 Years and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 29, 2021 · Synced Sep 8, 2026, 5:37 PM EDT
Withdrawn Phase 3 Interventional

Modafinil Versus Placebo for Hypoactive Delirium in the Critically Ill

NCT02028260
View directory record Official record
Conditions
Delirium, Respiratory Failure
Interventions
Modafinil, Placebo
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 75 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 2, 2016 · Synced Sep 8, 2026, 5:37 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Neural and Cognitive Consequences of COVID-19 Survival

NCT06208943
View directory record Official record
Conditions
COVID Long-Haul, COVID-19, COVID-19 Pandemic, Brain Fog, Memory Deficits, Concentration Ability Impaired, Fatigue
Interventions
cross-sectional MRI and EEG assessments (NO INTERVENTION)
Other
Lead sponsor
San Francisco Veterans Affairs Medical Center
Federal
Eligibility
18 Years to 70 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Apr 11, 2024 · Synced Sep 8, 2026, 5:37 PM EDT
Completed No phase listed Observational

Transpulmonary Pressures in Mechanical Ventilated Patients With Morbid Obesity

NCT02309190
View directory record Official record
Conditions
Mechanical Ventilation Complication, Respiratory Insufficiency
Interventions
Not listed
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 80 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Dec 11, 2024 · Synced Sep 8, 2026, 5:37 PM EDT