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Showing 1–24 of 521 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Respiratory Function Impaired Clear all
Completed Not applicable Interventional

Breathing Training for Asthma

NCT00975273
View directory record Official record
Conditions
ASTHMA
Interventions
Capnometry Assisted Respiration Training, Breathing Awareness
Behavioral
Lead sponsor
Southern Methodist University
Other
Eligibility
18 Years to 65 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2013
U.S. locations
2
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jun 3, 2018 · Synced Jul 23, 2026, 11:14 AM EDT
Completed No phase listed Observational

Prehospital Ventilator-Associated Pneumonia Prevention Trial

NCT01902446
View directory record Official record
Conditions
Wounds and Injuries, Respiratory Failure, Pneumonia, Ventilator-Associated
Interventions
Chlorhexidine gluconate
Drug
Lead sponsor
Nicholas M Mohr
Other
Eligibility
18 Years and older
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Jun 8, 2017 · Synced Jul 23, 2026, 11:14 AM EDT
Recruiting Not applicable Interventional

ROX Index for the Timing of Intubation in Nasal High Flow

NCT04707729
View directory record Official record
Conditions
Acute Hypoxemic Respiratory Failure
Interventions
ROX index algorithm
Diagnostic Test
Lead sponsor
Hospital Universitari Vall d'Hebron Research Institute
Other
Eligibility
18 Years to 120 Years
Enrollment
630 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 14, 2024 · Synced Jul 23, 2026, 11:14 AM EDT
Completed No phase listed Observational

Coagulation and Fibrinolysis in Pediatric Insulin Titration Trial (CAF-PINT)

NCT01892969
View directory record Official record
Conditions
Heart Failure, Respiratory Failure
Interventions
Not listed
Lead sponsor
University of California, San Francisco
Other
Eligibility
14 Days to 18 Years
Enrollment
304 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
25
States / cities
Los Angeles, California • Oakland, California • Orange, California + 19 more
Source: ClinicalTrials.gov public record
Updated Jul 30, 2020 · Synced Jul 23, 2026, 11:14 AM EDT
Terminated Not applicable Interventional

Humidity Therapy for Spontaneously Breathing Tracheostomy Patients

NCT02686489
View directory record Official record
Conditions
Respiratory Failure
Interventions
Heated humidification, Cool bland aerosol
Other
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 28, 2018 · Synced Jul 23, 2026, 11:14 AM EDT
Completed No phase listed Observational

Patient Controlled Analgesia Pharmacogenetic Study

NCT01731873
View directory record Official record
Conditions
Pain
Interventions
Not listed
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
Up to 18 Years
Enrollment
182 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2019
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 2, 2020 · Synced Jul 23, 2026, 11:14 AM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers Results available

Polycystic Ovary Syndrome (PCOS) and Sleep Apnea

NCT00203996
View directory record Official record
Conditions
Polycystic Ovary Syndrome, Obstructive Sleep Apnea
Interventions
continuous positive airway pressure (CPAP), depot leuprolide plus estrogen/progestin replacement, pioglitazone, REM frag, SWS supp
Device · Drug · Procedure
Lead sponsor
University of Chicago
Other
Eligibility
18 Years to 40 Years
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2008
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 20, 2023 · Synced Jul 23, 2026, 11:14 AM EDT
Recruiting No phase listed Observational

Effect of Thickened Feeds on Clinical Outcomes in Children With Brief Resolved Unexplained Event

NCT04477460
View directory record Official record
Conditions
Brief Resolved Unexplained Event, Apparent Life Threatening Event, Oropharyngeal Dysphagia
Interventions
Thickened feeds, Non-thickened feeds
Dietary Supplement
Lead sponsor
Boston Children's Hospital
Other
Eligibility
0 Months to 12 Months
Enrollment
250 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 Jul 23, 2026, 11:14 AM EDT
Completed Not applicable Interventional Results available

Using Capnography to Reduce Hypoxia During Pediatric Sedation

NCT01463527
View directory record Official record
Conditions
Hypoventilation, Hypoxia
Interventions
Nellcor NPB-70 Capnograph
Device
Lead sponsor
Yale University
Other
Eligibility
1 Year to 20 Years
Enrollment
167 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 Jan 10, 2018 · Synced Jul 23, 2026, 11:14 AM EDT
Terminated Phase 3 Interventional

Early Surfactant to Reduce Use of Mechanical Breathing in Low Birth Weight Infants

NCT00005774
View directory record Official record
Conditions
Infant, Newborn, Respiratory Distress Syndrome, Respiratory Insufficiency
Interventions
Early surfactant, Standard practice
Drug
Lead sponsor
NICHD Neonatal Research Network
Network
Eligibility
Up to 12 Hours
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2002
U.S. locations
13
States / cities
Birmingham, Alabama • Palo Alto, California • New Haven, Connecticut + 10 more
Source: ClinicalTrials.gov public record
Updated Jun 7, 2015 · Synced Jul 23, 2026, 11:14 AM EDT
Completed No phase listed Observational

Clinical Utility of Capnography in the PACU( Post-anaesthesia Care Unit)

NCT02707003
View directory record Official record
Conditions
Respiratory Depression
Interventions
Not listed
Lead sponsor
Medtronic - MITG
Industry
Eligibility
18 Years and older
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 22, 2020 · Synced Jul 23, 2026, 11:14 AM EDT
Completed Not applicable Interventional

Early Mobilization in the ICU

NCT01777035
View directory record Official record
Conditions
Respiratory Failure
Interventions
early PT OT
Other
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2022
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 20, 2022 · Synced Jul 23, 2026, 11:14 AM EDT
Enrolling by invitation Not applicable Interventional

Respiratory Monitoring System That Detects & Predicts OIRD

NCT07217197
View directory record Official record
Conditions
Respiration Disorders
Interventions
Study to evaluate a Respiratory Monitoring System (RMS) with a Tracheal Sound Sensor (TSS) for detecting and predicting opioid induced respiratory Depression (OIRD).
Device
Lead sponsor
Thomas Jefferson University
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 8, 2026 · Synced Jul 23, 2026, 11:14 AM EDT
Completed No phase listed Observational

Respiratory Control and Narcotic Effects

NCT04047550
View directory record Official record
Conditions
Ventilatory Depression, Opioid Intoxication, Opioid Toxicity
Interventions
Ventilatory chemosensitivity
Diagnostic Test
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 26, 2020 · Synced Jul 23, 2026, 11:14 AM EDT
Completed Not applicable Interventional Results available

Improving the Sleep and Circadian Rhythms of Mechanically Ventilated Patients

NCT01284140
View directory record Official record
Conditions
Critical Illness, Sleep Deprivation, Respiratory Failure, Sleep Disorders, Circadian Rhythm
Interventions
Sleep and circadian rhythm promotion, Usual care
Behavioral
Lead sponsor
Brian Gehlbach
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
2
States / cities
Chicago, Illinois • Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated May 6, 2018 · Synced Jul 23, 2026, 11:14 AM EDT
Not listed No phase listed Observational

Multimodal Perioperative Pain Management: ComfortSafe Program

NCT04046068
View directory record Official record
Conditions
Post-operative Pain, Post-operative Nausea and Vomiting, Respiratory Depression, Confusion Postoperative
Interventions
ComfortSafe Care
Procedure
Lead sponsor
Georgetown University
Other
Eligibility
21 Years to 75 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Oct 4, 2020 · Synced Jul 23, 2026, 11:14 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Latera RCT - Latera vs. Sham Control for Lateral Nasal Valve Collapse

NCT03400787
View directory record Official record
Conditions
Nasal Valve Collapse, Nasal Breathing
Interventions
Latera Implant, Sham Procedure
Device
Lead sponsor
Spirox, Inc.
Industry
Eligibility
18 Years and older
Enrollment
137 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
11
States / cities
Roseville, California • Torrance, California • Atlanta, Georgia + 8 more
Source: ClinicalTrials.gov public record
Updated Feb 8, 2021 · Synced Jul 23, 2026, 11:14 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Learn How Renal Impairment Affects the Pharmacokinetics of PF-07817883.

NCT06586216
View directory record Official record
Conditions
COVID-19
Interventions
PF-07817883
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 90 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
3
States / cities
Miami, Florida • Tampa, Florida • Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 18, 2025 · Synced Jul 23, 2026, 11:14 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Testing the Feasibility of Patient Controlled Sedation for Ventilated ICU Patients

NCT01606852
View directory record Official record
Conditions
Acute Respiratory Failure, Anxiety
Interventions
Dexmedetomidine
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 12, 2018 · Synced Jul 23, 2026, 11:14 AM EDT
Not listed No phase listed Observational

Symphony IL-6 Study in Patients at Risk of Severe Sepsis

NCT05665153
View directory record Official record
Conditions
Severe Sepsis
Interventions
Not listed
Lead sponsor
Bluejay Diagnostics, Inc.
Industry
Eligibility
22 Years and older
Enrollment
200 participants
Timeline
2022 – 2024
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Sep 6, 2023 · Synced Jul 23, 2026, 11:14 AM EDT
Not yet recruiting Not applicable Interventional

Active vs. Passive VR During Office-based ENT Procedures

NCT07599826
View directory record Official record
Conditions
Pain, Anxiety, Chronic Rhinosinusitis (CRS), Nasal Obstruction, Nasal Polyp, Eustachian Tube Dysfunction, Dysphonia, Subglottic Stenosis (SGS)
Interventions
Virtual reality headset or goggles
Device
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years and older
Enrollment
132 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated May 19, 2026 · Synced Jul 23, 2026, 11:14 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Study To Investigate The Pharmacokinetics, Safety And Tolerability Of An Intravenous And Oral Form Of A Compound In Subjects With Varying Degrees Of Renal Impairment And Normal Renal Function

NCT00759564
View directory record Official record
Conditions
Pneumonia
Interventions
CP-70,429 and PF-03709270
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 85 Years
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2010
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Mar 10, 2016 · Synced Jul 23, 2026, 11:14 AM EDT
Completed Phase 3 Interventional Results available

Randomized Open Investigation Determining Steroid Dose

NCT04834375
View directory record Official record
Conditions
Covid19
Interventions
Weight-based dexamethasone dose
Drug
Lead sponsor
Northwell Health
Other
Eligibility
18 Years and older
Enrollment
142 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
New Hyde Park, New York
Source: ClinicalTrials.gov public record
Updated Jul 19, 2023 · Synced Jul 23, 2026, 11:14 AM EDT
Completed Phase 3 Interventional Results available

The MENDS2 Study, Maximizing the Efficacy of Sedation and Reducing Neurological Dysfunction and Mortality in Septic Patients With Acute Respiratory Failure

NCT01739933
View directory record Official record
Conditions
Sepsis, Delirium, Impaired Cognition
Interventions
Dexmedetomidine, Propofol
Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
438 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2019
U.S. locations
11
States / cities
San Francisco, California • Baton Rouge, Louisiana • Boston, Massachusetts + 7 more
Source: ClinicalTrials.gov public record
Updated Jun 6, 2021 · Synced Jul 23, 2026, 11:14 AM EDT