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ClinicalTrials.gov public records Last synced Sep 7, 2026, 3:16 AM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Gas Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Effectiveness of a Butyrate Formulation and Butyrate + Polyphenol Formulation on Gut Health, Permeability and Associated Symptoms

NCT06419231
View directory record Official record
Conditions
Gut Health
Interventions
Butyrate Formulation, Butyrate + Polyphenol Formulation, Placebo
Dietary Supplement
Lead sponsor
Supplement Formulators, Inc.
Industry
Eligibility
21 Years to 70 Years
Enrollment
143 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Fort Lauderdale, Florida
Source: ClinicalTrials.gov public record
Updated Jan 12, 2026 · Synced Sep 7, 2026, 3:16 AM EDT
Not listed Not applicable Interventional

Comparison of the Atmo Motility Gas Capsule System to the Reference Standard

NCT05718505
View directory record Official record
Conditions
Gastroparesis, Slow Transit Constipation, IBS
Interventions
Atmo Motility Gas Capsule System, SmartPill Monitoring System
Device
Lead sponsor
Atmo Biosciences Pty Ltd
Industry
Eligibility
22 Years to 80 Years
Enrollment
209 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
2
States / cities
Boston, Massachusetts • Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jan 9, 2024 · Synced Sep 7, 2026, 3:16 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Hybrid SA RGP Center/S-H Skirt Daily Wear 90 Day Multicenter Study

NCT00804505
View directory record Official record
Conditions
Corneal Disease, Hypersensitivity
Interventions
SynergEyes Hybrid (petrafocon A hem-larafilcon A) Hybrid Contact Lens, SynergEyes Hybrid (paflufocon D hem-iberfilcon A) Contact Lens
Device
Lead sponsor
SynergEyes, Inc.
Industry
Eligibility
18 Years and older
Enrollment
98 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
8
States / cities
San Diego, California • Sunnyvale, California • Andover, Massachusetts + 5 more
Source: ClinicalTrials.gov public record
Updated Dec 22, 2009 · Synced Sep 7, 2026, 3:16 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Noninvasive Ventilation Masks Carbon Dioxide Clearance in Normal Volunteers

NCT03882723
View directory record Official record
Conditions
CO2 Clearance, Mask Comfort, Rebreathing Exhaled Gas
Interventions
Evaluated 4 masks used for NIV with mechanical ventilators
Device
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 27, 2023 · Synced Sep 7, 2026, 3:16 AM EDT
Withdrawn Phase 2 Interventional

Effects of Prolonged Delivery of Nitric Oxide Gas on Plasma Reduction-Oxidation Reactions in Cardiac Surgical Patients

NCT04022161
View directory record Official record
Conditions
Cardiovascular Diseases, Oxidative Stress, Endothelial Dysfunction
Interventions
Nitrogen Gas for Inhalation, Blood withdrawal, Nitric Oxide
Drug · Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 1, 2025 · Synced Sep 7, 2026, 3:16 AM EDT
Active, not recruiting Phase 1Phase 2 Interventional

A Phase I/II, Dose Finding and Optimization Study of [177Lu]Lu-NeoB in Combination With Capecitabine in Patients With GRPR+, ER+, HER2- Metastatic Breast Cancer After Progression on Previous Endocrine Therapy in Combination With a CDK4/6 Inhibitor.

NCT06247995
View directory record Official record
Conditions
Breast Cancer
Interventions
[68Ga]Ga-NeoB, [177Lu]Lu-NeoB, Capecitabine
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years to 100 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
5
States / cities
Los Angeles, California • Newport Beach, California • Rochester, Minnesota + 2 more
Source: ClinicalTrials.gov public record
Updated Sep 3, 2026 · Synced Sep 7, 2026, 3:16 AM EDT
Completed Phase 3 Interventional

A Comparison of the Effects of Tiotropium Inhalation qd and Salmeterol Inhalation Bid on Arterial Blood Gases.

NCT00274534
View directory record Official record
Conditions
Pulmonary Disease, Chronic Obstructive
Interventions
Tiotropium, Salmeterol
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
50 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2003
U.S. locations
2
States / cities
Hines, Illinois • Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Nov 4, 2013 · Synced Sep 7, 2026, 3:16 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Volatile Organic Compounds in Cystic Fibrosis

NCT01379040
View directory record Official record
Conditions
Cystic Fibrosis, Pseudomonas Aeruginosa
Interventions
Cystic Fibrosis patients
Other
Lead sponsor
Landon Pediatric Foundation
Other
Eligibility
1 Year to 40 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
Ventura, California
Source: ClinicalTrials.gov public record
Updated Aug 12, 2014 · Synced Sep 7, 2026, 3:16 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Assessment and Validation of Electronic Gas and Bloating Diary

NCT04684849
View directory record Official record
Conditions
Gas, Bloating, Distension, Constipation, Diarrhea
Interventions
APP Diary, Paper Diary
Other
Lead sponsor
Augusta University
Other
Eligibility
18 Years to 80 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
1
States / cities
Augusta, Georgia
Source: ClinicalTrials.gov public record
Updated Oct 23, 2022 · Synced Sep 7, 2026, 3:16 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Pregabalin and Colonic Function

NCT01094808
View directory record Official record
Conditions
Healthy
Interventions
Pregabalin, Placebo, Bowel preparation
Drug · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 75 Years
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 6, 2012 · Synced Sep 7, 2026, 3:16 AM EDT
Completed Phase 1Phase 2 Interventional

[177Lu]-NeoB in Patients With Advanced Solid Tumors and With [68Ga]-neoB Lesion Uptake

NCT03872778
View directory record Official record
Conditions
Neoplasms
Interventions
[177Lu]-NeoB, [68Ga]-NeoB, LCZ696
Drug
Lead sponsor
Advanced Accelerator Applications
Industry
Eligibility
18 Years and older
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
6
States / cities
Duarte, California • Stanford, California • Baltimore, Maryland + 3 more
Source: ClinicalTrials.gov public record
Updated Jul 27, 2026 · Synced Sep 7, 2026, 3:16 AM EDT
Completed Not applicable Interventional

ABL90 FLEX PLUS Method Comparison Neonatal Capillary

NCT07051278
View directory record Official record
Conditions
Method Comparison for ABL90 FLEX PLUS in Neonatal Subjects
Interventions
Method Comparison
Device
Lead sponsor
Radiometer Medical ApS
Industry
Eligibility
Up to 28 Days
Enrollment
129 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
3
States / cities
The Bronx, New York • Durham, North Carolina • Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Jul 3, 2025 · Synced Sep 7, 2026, 3:16 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Sinonasal Gas Exchange Dynamics

NCT01671098
View directory record Official record
Conditions
Sinusitis
Interventions
Not listed
Lead sponsor
Louisiana State University Health Sciences Center Shreveport
Other
Eligibility
18 Years to 65 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
Shreveport, Louisiana
Source: ClinicalTrials.gov public record
Updated Aug 19, 2015 · Synced Sep 7, 2026, 3:16 AM EDT
Active, not recruiting Phase 1 Interventional

[177Lu]Lu-NeoB in Combination With Ribociclib and Fulvestrant in Participants With ER+, HER2- and GRPR+ Advanced Breast Cancer

NCT05870579
View directory record Official record
Conditions
Breast Cancer
Interventions
[68Ga]Ga-NeoB, [177Lu]Lu-NeoB, Ribociclib, Fulvestrant, Goserelin
Drug · Other
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years to 100 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2032
U.S. locations
2
States / cities
Los Angeles, California • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 19, 2026 · Synced Sep 7, 2026, 3:16 AM EDT
Not listed No phase listed Observational

Hyperbaric Oxygen Therapy and SPECT Brain Imaging in Carbon Monoxide Poisoning

NCT00596180
View directory record Official record
Conditions
Neuropsychiatric Sequelae of Carbon Monoxide Poisoning
Interventions
HBOT
Drug
Lead sponsor
Paul G. Harch, M.D.
Other
Eligibility
Not listed
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2019
U.S. locations
1
States / cities
Marrero, Louisiana
Source: ClinicalTrials.gov public record
Updated Apr 17, 2017 · Synced Sep 7, 2026, 3:16 AM EDT
Active, not recruiting Phase 1Phase 2 Interventional Accepts healthy volunteers

Gas Exchange MRI to Visualize Regional Therapy Response in Interstitial Lung Disease

NCT06012500
View directory record Official record
Conditions
ILD
Interventions
Xenon-129
Drug
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
18 Years to 90 Years
Enrollment
78 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 12, 2026 · Synced Sep 7, 2026, 3:16 AM EDT
Completed Phase 1 Interventional

Lung Transplant Subjects Using 19F MRI

NCT02019251
View directory record Official record
Conditions
Post Single or Double Lung Transplant
Interventions
perfluorinated gas/oxygen mixture, MRI
Drug · Device
Lead sponsor
Hal C Charles
Other
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Nov 17, 2014 · Synced Sep 7, 2026, 3:16 AM EDT
Completed No phase listed Observational

Longitudinal Studies of Brain Structure and Function in MPS Disorders

NCT01870375
View directory record Official record
Conditions
Mucopolysaccharidosis Type I, Mucopolysaccharidosis Type II, Mucopolysaccharidosis Type VI, Mucopolysaccharidosis Type IV, Mucopolysaccharidosis Type VII
Interventions
Not listed
Lead sponsor
University of Minnesota
Other
Eligibility
6 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2019
U.S. locations
3
States / cities
Oakland, California • Minneapolis, Minnesota • New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 5, 2019 · Synced Sep 7, 2026, 3:16 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Gas Supply, Demand and Middle Ear Gas Balance -- Diagnosis of Eustachian Tube Dysfunction

NCT01974726
View directory record Official record
Conditions
Eustachian Tube Dysfunction
Interventions
ET Stress test, Sonotubometry, Forced Response Test (FRT), Inflation Deflation Test (IDT), Maneuver Sequence, 9-Step Test, Tubomanometry, Videoendoscopic assessment of ETF, Pressure chamber ET test
Other
Lead sponsor
University of Pittsburgh
Other
Eligibility
3 Years to 70 Years
Enrollment
95 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2019
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 7, 2020 · Synced Sep 7, 2026, 3:16 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Environmental Costs of Building Human Muscle

NCT06733857
View directory record Official record
Conditions
Greenhouse Gas Emissions, Water Use, Land Use
Interventions
VEG2, OMNI2
Behavioral
Lead sponsor
Game Changers Institute
Other
Eligibility
18 Years to 40 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Laguna Niguel, California
Source: ClinicalTrials.gov public record
Updated Dec 12, 2024 · Synced Sep 7, 2026, 3:16 AM EDT
Terminated Phase 4 Interventional

Assessing the Efficacy and Safety of DEXTENZA in Pseudo Phakic Patients Undergoing Gas Bubble Repair and Laser Following Retinal Detachment

NCT04464629
View directory record Official record
Conditions
Retinal Detachment
Interventions
Dextenza, Prednisolone Acetate
Drug
Lead sponsor
Midwest Eye Institute
Other
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Aug 15, 2023 · Synced Sep 7, 2026, 3:16 AM EDT
Withdrawn No phase listed Observational Accepts healthy volunteers

The Effects of Sound Energy on Pulmonary Gas Exchange

NCT02447731
View directory record Official record
Conditions
Respiratory Failure
Interventions
Induction of sound waves in lungs by "sonic oscillator"
Device
Lead sponsor
Loma Linda University
Other
Eligibility
21 Years to 59 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Loma Linda, California
Source: ClinicalTrials.gov public record
Updated May 2, 2017 · Synced Sep 7, 2026, 3:16 AM EDT
Not yet recruiting Phase 1Phase 2 Interventional

Carbon Monoxide Hyperbaric Oxygen With Steroid Therapy

NCT06574048
View directory record Official record
Conditions
Carbon Monoxide Poisoning, Carbon Monoxide Intoxication, Carbon Monoxide Encephalopathy, Carbon Monoxide-induced Parkinsonism
Interventions
saline placebo, Dexamethasone
Drug
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Aug 13, 2026 · Synced Sep 7, 2026, 3:16 AM EDT
Completed No phase listed Observational

Screening an Orthopedic Population for Mildly-affected Individuals With Morquio Syndrome A and Maroteaux-Lamy Syndrome

NCT01961518
View directory record Official record
Conditions
Morquio Syndrome A, Maroteaux Lamy Syndrome, MPS IVA, MPS VI
Interventions
Not listed
Lead sponsor
Greenwood Genetic Center
Other
Eligibility
Up to 18 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Greenville, South Carolina
Source: ClinicalTrials.gov public record
Updated Aug 12, 2015 · Synced Sep 7, 2026, 3:16 AM EDT