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Showing 1–24 of 274 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Respiratory Muscles Clear all
Active, not recruiting Phase 2 Interventional

Sirolimus in Combination With Metronomic Chemotherapy in Children With Recurrent and/or Refractory Solid and CNS Tumors

NCT02574728
View directory record Official record
Conditions
Cancer
Interventions
Sirolimus, Celecoxib, Etoposide, Cyclophosphamide
Drug
Lead sponsor
Emory University
Other
Eligibility
12 Months to 30 Years
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2026
U.S. locations
6
States / cities
Phoenix, Arizona • Wilmington, Delaware • Atlanta, Georgia + 2 more
Source: ClinicalTrials.gov public record
Updated Mar 1, 2026 · Synced Jun 27, 2026, 12:56 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

: Vascular Function in Health and Disease

NCT02966665
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease, Pulmonary Artery Hypertension, Heart Failure, Hypertension
Interventions
Maximum Exercise Tests, BH4, L-NMMA, Vitamin C, Vitamin E, α-Lipoic Acid and L-Ascorbate, BQ-123, Fexofenadine, Ranitidine, Angiotensin-II, Valsartan, Acetylcholine, Sodium Nitroprusside, Angiotensin-II, Norepinephrine, Phentolamine, BQ-123, MitoQ, BH4
Other · Drug
Lead sponsor
Russell Richardson
Other
Eligibility
18 Years and older
Enrollment
420 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2026
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Sep 25, 2025 · Synced Jun 27, 2026, 12:56 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Diaphragm Function and Diver Endurance

NCT04679402
View directory record Official record
Conditions
Respiratory Muscles
Interventions
Carbon monoxide 200 ppm in air
Other
Lead sponsor
Duke University
Other
Eligibility
18 Years to 45 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 12, 2024 · Synced Jun 27, 2026, 12:56 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Inspiratory Muscle Training Using the O2 Trainer

NCT07005622
View directory record Official record
Conditions
Inspiratory Muscle Training, Blood Pressure
Interventions
O2 Trainer, Deep breathing
Other
Lead sponsor
Sam Houston State University
Other
Eligibility
18 Years to 65 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Conroe, Texas
Source: ClinicalTrials.gov public record
Updated Jun 4, 2025 · Synced Jun 27, 2026, 12:56 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Quantitative Genioglossal Muscle Strength in Obstructive Sleep Apnea (OSAS)

NCT02695667
View directory record Official record
Conditions
Obstructive Sleep Apnea
Interventions
Not listed
Lead sponsor
University of New Mexico
Other
Eligibility
20 Years to 40 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Jan 7, 2024 · Synced Jun 27, 2026, 12:56 AM EDT
Completed Not applicable Interventional

A Trial Assessing the Safety and Feasibility of Respiratory Muscle Training and Exercise Training in Children and Adolescents With Persistent Asthma

NCT03911206
View directory record Official record
Conditions
Asthma
Interventions
Inspiratory muscle training (IMT), Exercise alone, IMT and Exercise
Behavioral
Lead sponsor
Duke University
Other
Eligibility
10 Years to 17 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Nov 3, 2020 · Synced Jun 27, 2026, 12:56 AM EDT
Completed Phase 2Phase 3 Interventional Results available

Use of an Oral Beta-2 Agonist in Persons With Spinal Cord Injury

NCT00755079
View directory record Official record
Conditions
Spinal Cord Injury
Interventions
extended release beta-2 adrenergic agonist, placebo
Drug
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
18 Years to 60 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2014
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Mar 16, 2015 · Synced Jun 27, 2026, 12:56 AM EDT
Completed Not applicable Interventional Results available

Sub-study to Spinal Cord Stimulation to Restore Cough

NCT00995215
View directory record Official record
Conditions
Spinal Cord Injuries, Spinal Cord Diseases, Paralysis, Central Nervous System Diseases, Cough
Interventions
Spinal Cord Stimulation, Expiratory Muscle Stimulator
Procedure · Device
Lead sponsor
MetroHealth Medical Center
Other
Eligibility
18 Years to 70 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2017
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 13, 2020 · Synced Jun 27, 2026, 12:56 AM EDT
Terminated Not applicable Interventional

Treatment of Muscle Weakness in Critically Ill Patients

NCT02247895
View directory record Official record
Conditions
Critical Illness, Respiratory Failure, Myopathy, Weakness
Interventions
Sham Treatment, Electrical stimulation
Device
Lead sponsor
Gerald Supinski
Other
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Jun 21, 2020 · Synced Jun 27, 2026, 12:56 AM EDT
Completed Phase 2 Interventional Results available

Electrical Stimulation for Critically Ill Post-Covid-19 Patients

NCT05198466
View directory record Official record
Conditions
COVID-19, Muscle Atrophy, Muscle Weakness
Interventions
Electrical Stimulation, Electrical Stimulation - Sham
Device
Lead sponsor
Baylor College of Medicine
Other
Eligibility
18 Years to 100 Years
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 6, 2023 · Synced Jun 27, 2026, 12:56 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Respiratory Muscle Strength and Function in Healthy Kids

NCT01436318
View directory record Official record
Conditions
Respiratory Muscle Strength
Interventions
Not listed
Lead sponsor
University of Florida
Other
Eligibility
4 Years to 16 Years
Enrollment
7 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Sep 12, 2018 · Synced Jun 27, 2026, 12:56 AM EDT
Completed Phase 3 Interventional Results available

Phase III Study of Idebenone in Duchenne Muscular Dystrophy (DMD)

NCT01027884
View directory record Official record
Conditions
Muscular Dystrophy, Duchenne, Ambulatory Care
Interventions
Placebo, Idebenone
Drug
Lead sponsor
Santhera Pharmaceuticals
Industry
Eligibility
10 Years to 18 Years · Male only
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
9
States / cities
Sacramento, California • Aurora, Colorado • Gainesville, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Oct 18, 2015 · Synced Jun 27, 2026, 12:56 AM EDT
Active, not recruiting Not applicable Interventional

Acute Intermittent Hypoxia on Leg Function Following Spinal Cord Injury

NCT02274116
View directory record Official record
Conditions
Spinal Cord Injuries
Interventions
SHAM - Intermittent Room Air - room air mixture, AIH - Intermittent Hypoxia - hypoxia air mixture
Other
Lead sponsor
Spaulding Rehabilitation Hospital
Other
Eligibility
18 Years to 75 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2027
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 19, 2026 · Synced Jun 27, 2026, 12:56 AM EDT
Recruiting Phase 4 Interventional

A Study to Investigate of the Effects of Opioid Exposure on the Ability of the Diaphragm Muscle

NCT05856136
View directory record Official record
Conditions
Respiratory Function Loss, Respiratory Complication
Interventions
Fentanyl Injection
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
69 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 22, 2026 · Synced Jun 27, 2026, 12:56 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Inspiratory Muscle Strength Training in Adults With Obesity

NCT05459636
View directory record Official record
Conditions
Obesity
Interventions
High-resistance inspiratory muscle strength training, Very-low-resistance inspiratory muscle strength training
Device
Lead sponsor
Florida State University
Other
Eligibility
18 Years to 45 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Tallahassee, Florida
Source: ClinicalTrials.gov public record
Updated Jun 25, 2026 · Synced Jun 27, 2026, 12:56 AM EDT
Recruiting Not applicable Interventional

EMST in Patients Undergoing CRT for HNCA

NCT03916809
View directory record Official record
Conditions
Head and Neck Neoplasms, Deglutition Disorders
Interventions
EMST
Other
Lead sponsor
University of Wisconsin, Milwaukee
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2025
U.S. locations
2
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Dec 3, 2024 · Synced Jun 27, 2026, 12:56 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

North American Mitochondrial Disease Consortium Patient Registry and Biorepository (NAMDC)

NCT01694940
View directory record Official record
Conditions
Mitochondrial Disorders, Mitochondrial Genetic Disorders, Mitochondrial Diseases, Disorder of Mitochondrial Respiratory Chain Complexes, Deletion and Duplication of Mitochondrial DNA
Interventions
Not listed
Lead sponsor
Columbia University
Other
Eligibility
Not listed
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2026
U.S. locations
16
States / cities
San Diego, California • Stanford, California • Aurora, Colorado + 12 more
Source: ClinicalTrials.gov public record
Updated Feb 3, 2026 · Synced Jun 27, 2026, 12:56 AM EDT
Active, not recruiting Phase 2 Interventional Results available

Targeted Therapy Directed by Genetic Testing in Treating Pediatric Patients With Relapsed or Refractory Advanced Solid Tumors, Non-Hodgkin Lymphomas, or Histiocytic Disorders (The Pediatric MATCH Screening Trial)

NCT03155620
View directory record Official record
Conditions
Advanced Malignant Solid Neoplasm, Ann Arbor Stage III Non-Hodgkin Lymphoma, Ann Arbor Stage IV Non-Hodgkin Lymphoma, Histiocytic Sarcoma, Juvenile Xanthogranuloma, Langerhans Cell Histiocytosis, Malignant Glioma, Recurrent Childhood Rhabdomyosarcoma, Recurrent Ependymoma, Recurrent Ewing Sarcoma, Recurrent Glioma, Recurrent Hepatoblastoma, Recurrent Langerhans Cell Histiocytosis, Recurrent Malignant Germ Cell Tumor, Recurrent Malignant Solid Neoplasm, Recurrent Medulloblastoma, Recurrent Neuroblastoma, Recurrent Non-Hodgkin Lymphoma, Recurrent Osteosarcoma, Recurrent Peripheral Primitive Neuroectodermal Tumor, Recurrent Primary Central Nervous System Neoplasm, Recurrent Rhabdoid Tumor, Recurrent Soft Tissue Sarcoma, Refractory Ewing Sarcoma, Refractory Glioma, Refractory Hepatoblastoma, Refractory Langerhans Cell Histiocytosis, Refractory Malignant Germ Cell Tumor, Refractory Malignant Solid Neoplasm, Refractory Medulloblastoma, Refractory Neuroblastoma, Refractory Non-Hodgkin Lymphoma, Refractory Osteosarcoma, Refractory Peripheral Primitive Neuroectodermal Tumor, Refractory Primary Central Nervous System Neoplasm, Refractory Rhabdoid Tumor, Refractory Rhabdomyosarcoma, Rhabdoid Tumor, Stage III Osteosarcoma AJCC v7, Stage III Soft Tissue Sarcoma AJCC v7, Stage IV Osteosarcoma AJCC v7, Stage IV Soft Tissue Sarcoma AJCC v7, Stage IVA Osteosarcoma AJCC v7, Stage IVB Osteosarcoma AJCC v7, Wilms Tumor
Interventions
Biopsy Procedure, Biospecimen Collection, Bone Marrow Aspiration and Biopsy, Bone Scan, Computed Tomography, Ensartinib, Erdafitinib, Ivosidenib, Laboratory Biomarker Analysis, Larotrectinib Sulfate, Magnetic Resonance Imaging, Mutation Carrier Screening, Olaparib, Palbociclib, Pharmacological Study, Positron Emission Tomography, Radionuclide Imaging, Samotolisib, Selpercatinib, Selumetinib Sulfate, Tazemetostat, Tipifarnib, Ulixertinib, Vemurafenib, X-Ray Imaging
Procedure · Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
12 Months to 21 Years
Enrollment
1,377 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2027
U.S. locations
168
States / cities
Birmingham, Alabama • Anchorage, Alaska • Mesa, Arizona + 126 more
Source: ClinicalTrials.gov public record
Updated Jun 16, 2026 · Synced Jun 27, 2026, 12:56 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Dynamic Respiratory Muscle Function in Late-Onset Pompe Disease

NCT02354664
View directory record Official record
Conditions
Pompe Disease
Interventions
Thoracic MRI, Spirometry, Inspiratory Load Compensation, Maximal Inspiratory Pressure, Resting Breathing Pattern, Respiratory Muscle Endurance Test
Other
Lead sponsor
University of Florida
Other
Eligibility
20 Years to 65 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Jun 23, 2024 · Synced Jun 27, 2026, 12:56 AM EDT
Recruiting Phase 3 Interventional Accepts healthy volunteers

Translaryngeal Vibration for Hyperfunctional Voice Disorders

NCT07145086
View directory record Official record
Conditions
Dysphonia, Muscle Tension Dysphonia
Interventions
Voice therapy with vibration
Behavioral
Lead sponsor
Texas Christian University
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Fort Worth, Texas
Source: ClinicalTrials.gov public record
Updated Aug 27, 2025 · Synced Jun 27, 2026, 12:56 AM EDT
Not listed No phase listed Observational

Limb Girdle Muscular Dystrophy Type 2E Recruitment Study

NCT03492346
View directory record Official record
Conditions
Limb-Girdle Muscular Dystrophy, Type 2E
Interventions
Not listed
Lead sponsor
Nationwide Children's Hospital
Other
Eligibility
3 Years to 15 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 5, 2023 · Synced Jun 27, 2026, 12:56 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Diaphragm Structure and Function in Children

NCT06230692
View directory record Official record
Conditions
Respiratory Muscle Training
Interventions
POWERbreathe Plus IMT
Device
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
6 Years to 12 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 29, 2026 · Synced Jun 27, 2026, 12:56 AM EDT
Recruiting Phase 1Phase 2 Interventional

Lumbrokinase for Adults With Long Covid, Post-treatment Lyme Disease Syndrome, and Myalgic Encephalomyelitis/Chronic Fatigue Syndrome

NCT06511050
View directory record Official record
Conditions
Long Covid, Post-treatment Lyme Disease Syndrome, Chronic Fatigue Syndrome, Myalgic Encephalomyelitis
Interventions
Lumbrokinase
Dietary Supplement
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 12, 2026 · Synced Jun 27, 2026, 12:56 AM 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 Jun 27, 2026, 12:56 AM EDT