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ClinicalTrials.gov public records Last synced Sep 29, 2026, 8:39 AM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Ventilatory Depression, Postoperative Respiratory Failure
Interventions
Oxygen gas
Other
Lead sponsor
Stanford University
Other
Eligibility
20 Years to 90 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Stanford, California
Conditions
Ileus, Ogilvie Syndrome, Small Bowel Obstruction
Interventions
100% Oxygen
Drug
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 100 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Gainesville, Florida
Conditions
COPD
Interventions
Oxygen, High flow of room air
Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years to 80 Years
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2016
U.S. locations
1
States / cities
Baltimore, Maryland
Recruiting Phase 2 Interventional Accepts healthy volunteers

Effect of Nitrous Oxide on Aggression.

NCT06118567
Conditions
Intermittent Explosive Disorder
Interventions
Nitrous oxide, Room Air
Drug
Lead sponsor
Ohio State University
Other
Eligibility
21 Years to 55 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
1
States / cities
Columbus, Ohio
Completed No phase listed Observational Accepts healthy volunteers

COPD-Related Physiology and the Brain

NCT03269721
Conditions
Pulmonary Disease, Chronic Obstructive (COPD), Cognitive Impairment
Interventions
Neuropsychological Assessment, Spirometry, Arterial Blood Gas, Diffusion Capacity of the Lung for Carbon Monoxide, 6 Minute Walk Test, Systemic Vascular Measures, Blood Biomarkers, Symptom Questionnaire Measures, Brain MRI
Behavioral · Procedure · Diagnostic Test + 1 more
Lead sponsor
Karin Hoth
Other
Eligibility
30 Years to 85 Years
Enrollment
170 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2025
U.S. locations
1
States / cities
Iowa City, Iowa
Completed Early Phase 1 Interventional Accepts healthy volunteers

Hyaluronidase Via LADD Scleroderma-induced Microstomia

NCT05995626
Conditions
Microstomia, Scleroderma
Interventions
Hyaluronidase, CO2 laser
Drug · Device
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years and older
Enrollment
3 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
2
States / cities
Omaha, Nebraska
Conditions
Cystic Fibrosis
Interventions
Nitric Oxide for Inhalation, Nitrogen
Drug
Lead sponsor
Mallinckrodt
Industry
Eligibility
12 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2008
U.S. locations
1
States / cities
Denver, Colorado
Withdrawn Not applicable Interventional Accepts healthy volunteers

Comparing Sedara to Butorphanol in Early Labor

NCT01636999
Conditions
Labor Pain
Interventions
50% Nitrous Oxide/50% Oxygen
Drug
Lead sponsor
West Penn Allegheny Health System
Other
Eligibility
18 Years and older · Female only
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Conditions
Low Oxygen Saturation
Interventions
Not listed
Lead sponsor
Children's National Research Institute
Other
Eligibility
Up to 21 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Recruiting Phase 2 Interventional Accepts healthy volunteers

129Xe MRI Cardiopulmonary

NCT06038630
Conditions
Interstitial Lung Disease, Chronic Thromboembolic Pulmonary Hypertension, Acute Pulmonary Embolism, Anemia, Polycythemia, Dyspnea
Interventions
Hyperpolarized Xe129, Oxygen Administration
Drug · Other
Lead sponsor
Bastiaan Driehuys
Other
Eligibility
18 Years and older
Enrollment
125 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2028
U.S. locations
1
States / cities
Durham, North Carolina
Withdrawn No phase listed Observational

Pulse Oximetry Accuracy by Skin Color

NCT05692453
Conditions
Surgery
Interventions
Arterial blood gas with co-oximetry
Diagnostic Test
Lead sponsor
Brittany Willer
Other
Eligibility
2 Years to 9 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Columbus, Ohio
Completed Not applicable Interventional

The ECMO-Free Trial

NCT05486559
Conditions
Extracorporeal Membrane Oxygenation Complication
Interventions
ECMO-free protocol, Usual Care
Other
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
225 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
7
States / cities
San Diego, California • Stanford, California • Minneapolis, Minnesota + 4 more
Completed Not applicable Interventional Accepts healthy volunteers Results available

Metabolic Changes in the Activated Human Visual Cortex During Mild Hypoxia

NCT02482571
Conditions
Brain Hypoxia
Interventions
Mild Hypoxia
Device
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 40 Years · Male only
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Minneapolis, Minnesota
Completed Phase 1 Interventional Accepts healthy volunteers

Predictors of Opioid-Induced Respiratory Depression (OIRD)

NCT02473354
Conditions
Respiratory Depression
Interventions
Remifentanil, Oxygen, Carbon dioxide
Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years to 50 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
Durham, North Carolina
Conditions
Surgical Wound Infection
Interventions
80% oxygen, 30% oxygen
Other
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years to 80 Years
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
2
States / cities
Louisville, Kentucky • Cleveland, Ohio
Completed Not applicable Interventional Accepts healthy volunteers Results available

Dietary Salt in Postural Tachycardia Syndrome

NCT01547117
Conditions
Postural Orthostatic Tachycardia Syndrome
Interventions
Blood Volume, Total Blood Volume, Exercise Capacity Test - Bicycle, Posture Study
Radiation · Procedure
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 50 Years
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2021
U.S. locations
1
States / cities
Nashville, Tennessee
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Pulse Oximeter Accuracy During Stable Hypoxia Plateaus

NCT07408388
Conditions
Hypoxia
Interventions
Pulse Oximeter, Induced hypoxia through breathing nitrogen-air-carbon dioxide mixture
Device · Procedure
Lead sponsor
Nihon Kohden
Industry
Eligibility
18 Years to 50 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
San Francisco, California
Completed Phase 1 Interventional Accepts healthy volunteers

Effects of Carbon Monoxide Breathing on Blood Vessel Function

NCT03067701
Conditions
Endothelial Dysfunction
Interventions
Carbon Monoxide
Drug
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years to 39 Years
Enrollment
9 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Los Angeles, California
Conditions
Epilepsy, SUDEP
Interventions
6% Carbon dioxide/50% oxygen/balance nitrogen mixture
Other
Lead sponsor
University of Iowa
Other
Eligibility
18 Years to 99 Years
Enrollment
335 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2029
U.S. locations
1
States / cities
Iowa City, Iowa
Conditions
Major Depressive Disorder, Bipolar Depression
Interventions
Xenon, Nitrogen gas
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Terminated Early Phase 1 Interventional Accepts healthy volunteers

Nitrous Oxide for Pain Management During In-Office Gynecology Procedures

NCT06661005
Conditions
Nitrous Oxide
Interventions
Nitrous oxide, IV Sedation
Drug
Lead sponsor
University of Arizona
Other
Eligibility
18 Years to 99 Years · Female only
Enrollment
3 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Phoenix, Arizona
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Neuroimaging During Pure Oxygen Breathing

NCT03268590
Conditions
Hyperoxia, Hypoxia, Brain, Neurobehavioral Manifestations
Interventions
Oxygen
Drug
Lead sponsor
Case Western Reserve University
Other
Eligibility
18 Years to 60 Years
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Cleveland, Ohio
Conditions
Lumbar Spinal Stenosis, Lumbar Spinal Instability, Lumbar Spine Degeneration
Interventions
Standard analgesia use [Oxygen], Standard analgesia use [Hydromorphone], Standard analgesia use [Volatile Anesthesia], Standard analgesia use [Fentanyl], Multi-modal pain management [Acetaminophen + Gabapentin], Multi-modal pain management [Fentanyl], Multi-modal pain management [Intravenous Ketamine], Multi-modal pain management [Valium + Gabapentin]
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 100 Years
Enrollment
49 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Baltimore, Maryland
Conditions
Bronchiolitis, Heliox, Pediatrics
Interventions
Vapotherm-Heliox
Device
Lead sponsor
Case Western Reserve University
Other
Eligibility
Up to 2 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Cleveland, Ohio