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Showing 1–23 of 23 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Respiratory Effort Clear all
Recruiting No phase listed Observational Accepts healthy volunteers

Cardiac Magnetic Resonance Tissue Characterization in COVID-19 Survivors

NCT05164744
View directory record Official record
Conditions
COVID-19 Pneumonia, COVID-19, COVID-19 Respiratory Infection, COVID-19 Acute Respiratory Distress Syndrome, COVID-19 Lower Respiratory Infection, COVID-19 Acute Bronchitis, Coronavirus Disease 2019
Interventions
Cardiac MRI, Echocardiogram, 6-minute walk test, Questionnaire
Diagnostic Test
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
510 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
3
States / cities
Brooklyn, New York • New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 21, 2026 · Synced Jul 23, 2026, 10:19 PM EDT
Completed Not applicable Interventional

SBRT (Stereotactic Body Radiation Therapy) vs. Surgery in High Risk Patients With Early Stage Lung Cancer

NCT02562027
View directory record Official record
Conditions
Carcinoma, Non-Small-Cell-Lung, Non-Small Cell Lung Cancer, Nonsmall Cell Lung Cancer
Interventions
European Organization for Research and Treatment of Cancer Quality of Life Questionnaire C30, European Organization for Research and Treatment of Cancer Quality of Life Questionnaire LC-13, Modified Medical Research Council, EQ-5D, Center for Epidemiological Studies Depression Scale, Medical Outcomes Study Social Support Survey
Behavioral
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
217 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 7, 2021 · Synced Jul 23, 2026, 10:19 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Influenza Reminder Text-Messaging

NCT06587984
View directory record Official record
Conditions
Influenza
Interventions
Text message reminder
Behavioral
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
6 Months to 18 Years
Enrollment
228,361 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 30, 2025 · Synced Jul 23, 2026, 10:19 PM EDT
Active, not recruiting No phase listed Observational

Long Term Follow up of Children Enrolled in the REDvent Study

NCT03709199
View directory record Official record
Conditions
Respiratory Distress Syndrome, Adult, Ventilator-Induced Lung Injury, Neurocognitive Dysfunction, Quality of Life, Respiration Disorders
Interventions
Ventilation Inhomogeneity, Diaphragm Ultrasound, Respiratory Inductance Plethysmography, Spirometry, Functional Residual Capacity, MIP/MEP, 6 minute walk test, Neurocognitive Testing, Emotional Health Assessment, Health Related Quality of Life, Functional Status, Respiratory Status Questionnaire
Diagnostic Test
Lead sponsor
Children's Hospital Los Angeles
Other
Eligibility
1 Month to 18 Years
Enrollment
176 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2026
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Apr 16, 2025 · Synced Jul 23, 2026, 10:19 PM EDT
Completed Not applicable Interventional Results available

Real-time Effort Driven VENTilator Management

NCT03266016
View directory record Official record
Conditions
Ventilation Therapy; Complications, Diaphragm Disease, Pediatric Respiratory Diseases
Interventions
Computerized Ventilator Protocol, Esophageal Manometry, Respiratory Inductance Plethysmography (RIP), Diaphragm Ultrasound, Maximal Inspiratory Pressure
Other · Diagnostic Test
Lead sponsor
Children's Hospital Los Angeles
Other
Eligibility
30 Days to 18 Years
Enrollment
248 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2024
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Sep 16, 2025 · Synced Jul 23, 2026, 10:19 PM EDT
Completed Not applicable Interventional

Exercise Training Study for Patients With Cystic Fibrosis

NCT00609050
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Self-Regulated Exercise with Telephone Reinforcement, Standard Treatment, Qualitative Approach
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
10 Years to 18 Years
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 18, 2016 · Synced Jul 23, 2026, 10:19 PM EDT
Completed Not applicable Interventional

Clinical Effort Against Smoke Exposure in Cystic Fibrosis

NCT04777344
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Tobacco Treatment Specialist (TTS) intervention
Behavioral
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
19 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Oct 5, 2022 · Synced Jul 23, 2026, 10:19 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Treatment of Paradoxical Vocal Fold Motion Disorder (PVFMD) With a Form of Respiratory Retraining Technique

NCT02859974
View directory record Official record
Conditions
Paradoxical Vocal Fold Motion Disorder, Vocal Cord Dysfunction
Interventions
Respiratory retraining for PVFMD
Behavioral
Lead sponsor
Boston Medical Center
Other
Eligibility
12 Years and older
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 8, 2017 · Synced Jul 23, 2026, 10:19 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

DreamKit Respiratory Effort Signal Validation

NCT04926077
View directory record Official record
Conditions
Sleep Apnea, Obstructive, Sleep Apnea, Central
Interventions
DreamKit
Device
Lead sponsor
Philips Clinical & Medical Affairs Global
Industry
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 29, 2022 · Synced Jul 23, 2026, 10:19 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Pelvic Floor Activity and Breathing in Women

NCT01694979
View directory record Official record
Conditions
Pelvic Floor, Respiration
Interventions
Minimum expiration effort, Moderate expiration effort, Maximum expiration effort
Other
Lead sponsor
Kitani, Lenore, PT
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
Lubbock, Texas
Source: ClinicalTrials.gov public record
Updated Sep 26, 2012 · Synced Jul 23, 2026, 10:19 PM EDT
Enrolling by invitation No phase listed Observational

Ventilator Mode and Respiratory Physiology

NCT06624254
View directory record Official record
Conditions
Pulmonary Disease, Respiratory Failure, Respiratory Effort, Breathing Mechanics
Interventions
lung mechanics, respiratory drive and effort
Other
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Oct 1, 2024 · Synced Jul 23, 2026, 10:19 PM EDT
Terminated No phase listed Observational Results available

A Study of Respiratory Muscle Strength in Patients With Late-onset Pompe Disease (LOPD)

NCT02191917
View directory record Official record
Conditions
Late-onset Pompe Disease
Interventions
Respiratory muscle strength measurements by different techniques.
Procedure
Lead sponsor
BioMarin Pharmaceutical
Industry
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Jan 8, 2023 · Synced Jul 23, 2026, 10:19 PM EDT
Terminated Early Phase 1 Interventional Results available

Post-Acute Sequelae of Coronavirus-19 (COVID-19) With Dyspnea on Exertion And Associated TaChycardia TrEatment Study

NCT05096884
View directory record Official record
Conditions
Tachycardia, Dyspnea, COVID-19
Interventions
Metoprolol Succinate
Drug
Lead sponsor
Hackensack Meridian Health
Other
Eligibility
18 Years to 40 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Hackensack, New Jersey
Source: ClinicalTrials.gov public record
Updated Dec 2, 2024 · Synced Jul 23, 2026, 10:19 PM EDT
Recruiting Not applicable Interventional

Thoracoabdominal Asynchrony and Respiratory Distress

NCT04626154
View directory record Official record
Conditions
Respiratory Insufficiency
Interventions
Objectively monitoring thoracoabdominal asynchrony
Diagnostic Test
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
28 Days to 17 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2029
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 12, 2026 · Synced Jul 23, 2026, 10:19 PM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

FUVID Study: Functional Characterization of Children With Chronic Venous Thromboembolic Disease

NCT04583878
View directory record Official record
Conditions
Deep Venous Thrombosis, Pulmonary Embolism
Interventions
Blood draw (Visit 1), Blood draw (Visits 2 and 3)
Diagnostic Test
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
8 Years to 21 Years
Enrollment
115 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2027
U.S. locations
14
States / cities
Little Rock, Arkansas • St. Petersburg, Florida • Atlanta, Georgia + 11 more
Source: ClinicalTrials.gov public record
Updated Jun 7, 2026 · Synced Jul 23, 2026, 10:19 PM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Sparkle Respiratory Effort Validation

NCT04630639
View directory record Official record
Conditions
Sleep Apnea, Obstructive, Sleep Apnea, Central
Interventions
Sparkle
Device
Lead sponsor
Philips Clinical & Medical Affairs Global
Industry
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 22, 2021 · Synced Jul 23, 2026, 10:19 PM EDT
Completed Not applicable Interventional Results available

Vitabreath Pilot in Chronic Obstructive Pulmonary Disease (COPD) Patients

NCT03349437
View directory record Official record
Conditions
COPD, Dyspnea
Interventions
Vitabreath Device, Pursed Lip Breathing
Device · Other
Lead sponsor
Philips Respironics
Industry
Eligibility
40 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
2
States / cities
Youngstown, Ohio • Jefferson Hills, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 7, 2019 · Synced Jul 23, 2026, 10:19 PM EDT
Completed Phase 2 Interventional Results available

Effort to Prevent Nosocomial Pneumonia Caused by Pseudomonas Aeruginosa in Mechanically Ventilated Subjects

NCT02696902
View directory record Official record
Conditions
Pseudomonas Aeruginosa
Interventions
MEDI3902, Placebo
Drug · Other
Lead sponsor
MedImmune LLC
Industry
Eligibility
18 Years to 99 Years
Enrollment
188 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
8
States / cities
Englewood, Colorado • Gainesville, Florida • Atlanta, Georgia + 5 more
Source: ClinicalTrials.gov public record
Updated Feb 3, 2021 · Synced Jul 23, 2026, 10:19 PM EDT
Not listed Not applicable Interventional

Non-Invasive Measurement of Respiratory Effort

NCT00528749
View directory record Official record
Conditions
Upper Airway Resistance Syndrome
Interventions
Patient will wear ARES device while undergoing sleep study
Other
Lead sponsor
Walter Reed Army Medical Center
Federal
Eligibility
18 Years and older
Enrollment
20 participants
Timeline
Started 2007
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Sep 11, 2007 · Synced Jul 23, 2026, 10:19 PM EDT
Completed Not applicable Interventional Results available

HFNC Flow Titration and Effort of Breathing in the PICU

NCT02793674
View directory record Official record
Conditions
High Flow Nasal Cannula
Interventions
Fisher & Paykel high flow nasal cannula, Vapotherm high flow nasal cannula
Device
Lead sponsor
Children's Hospital Los Angeles
Other
Eligibility
Up to 3 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Oct 29, 2024 · Synced Jul 23, 2026, 10:19 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Perminova Respiratory Effort Accuracy Validation 09-12-2013-Rev 2

NCT02048436
View directory record Official record
Conditions
Respiratory Rate Accuracy Test
Interventions
Not listed
Lead sponsor
Clinimark, LLC
Other
Eligibility
18 Years to 45 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
Louisville, Colorado
Source: ClinicalTrials.gov public record
Updated Jan 28, 2014 · Synced Jul 23, 2026, 10:19 PM EDT
Withdrawn Phase 4 Interventional

Mechanisms for Dyspnea on Exertion in Children With Obesity and Asthma: Distinct Physiological Phenotypes

NCT04184609
View directory record Official record
Conditions
Asthma in Children, Dyspnea; Asthmatic, Obesity, Childhood
Interventions
Control, Albuterol
Other · Drug
Lead sponsor
Ohio State University
Other
Eligibility
9 Years to 17 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 6, 2023 · Synced Jul 23, 2026, 10:19 PM EDT
Completed Not applicable Interventional

Respiratory Disorders Non-invasive Monitoring of Work of Breathing in Outpatients

NCT04003415
View directory record Official record
Conditions
Copd, Asthma, Respiratory Effort, Contactless Vital Sign Monitoring
Interventions
Investigational Device: Contactless heart rate and respiratory rate monitor, Heart Rate (EKG) Monitor, Respiratory rate Monitor, Pulse Oximetry
Device · Diagnostic Test
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Sep 27, 2021 · Synced Jul 23, 2026, 10:19 PM EDT