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Showing 1–24 of 243 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: 30% oxygen Clear all
Completed Not applicable Interventional Results available

Supplemental Oxygen in Colorectal Surgery: A Quality Improvement Project

NCT01777568
View directory record Official record
Conditions
30% Oxygen Concentration During Colorectal Surgery, 80% Oxygen Concentration During Colorectal Surgery
Interventions
30% oxygen, 80% oxygen
Drug
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years to 80 Years
Enrollment
5,749 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 4, 2019 · Synced Sep 1, 2026, 11:24 PM EDT
Not yet recruiting Phase 4 Interventional

A Randomized, Placebo-controlled Trial of Nitrous Oxide During In-office Bladder Botox Injections

NCT07387315
View directory record Official record
Conditions
Overactive Bladder, Neurogenic Bladder, Urge Incontinence, Pain, Urinary Incontinence, Urinary Bladder, Overactive, Urinary Bladder, Neurogenic, Urinary Bladder Neurogenesis, Urinary Incontinence, Urge, Pelvic Floor Disorders
Interventions
Pro-Nox Nitrous Oxide/Oxygen Delivery System, Standard Care for Bladder Botox Injection, Sham Mask
Drug · Other
Lead sponsor
TriHealth Inc.
Other
Eligibility
18 Years and older · Female only
Enrollment
96 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
2
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 3, 2026 · Synced Sep 1, 2026, 11:24 PM EDT
Completed Phase 2 Interventional Results available

Improving Ventilatory Capacity in Those With Chronic High Level SCI

NCT05041322
View directory record Official record
Conditions
Spinal Cord Injuries
Interventions
Buspirone, Placebo
Drug
Lead sponsor
Spaulding Rehabilitation Hospital
Other
Eligibility
18 Years to 50 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 17, 2025 · Synced Sep 1, 2026, 11:24 PM EDT
Terminated Not applicable Interventional Results available

Supplemental Postoperative Oxygen and Wound Infection in Morbidly Obese Patients

NCT00315822
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Apr 5, 2017 · Synced Sep 1, 2026, 11:24 PM EDT
Not listed Not applicable Interventional

Effect of Transpulmonary Pressure Guided Ventilation on Intraoperative Right Heart Function

NCT05709041
View directory record Official record
Conditions
Obesity, Surgery, Anesthesia, Echocardiography, Transesophageal, Mechanical Ventilation
Interventions
Individualized lung-protective ventilation, Standard lung-protective ventilation
Other
Lead sponsor
University of Vermont Medical Center
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Jan 31, 2023 · Synced Sep 1, 2026, 11:24 PM EDT
Terminated Phase 2 Interventional Results available

Nitric Oxide Gas Inhalation Therapy for Mild/Moderate COVID-19

NCT04305457
View directory record Official record
Conditions
Coronavirus Infections, Pneumonia, Viral, Acute Respiratory Distress Syndrome
Interventions
Nitric Oxide
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
2
States / cities
Shreveport, Louisiana • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 22, 2026 · Synced Sep 1, 2026, 11:24 PM EDT
Recruiting Not applicable Interventional

Physiological Effects of Continuous Negative External Pressure for Acute Hypoxemic Respiratory Failure

NCT05675345
View directory record Official record
Conditions
Acute Hypoxemic Respiratory Failure
Interventions
HFNC only, HFNC + CNEP10, HFNC + CNEP20, HFNC + CNEP30
Device
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
20 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 3, 2024 · Synced Sep 1, 2026, 11:24 PM EDT
Terminated Not applicable Interventional Results available

Providing Optimal PEEP During Mechanical Ventilation for Obese Patients Using Esophageal Balloon

NCT03951064
View directory record Official record
Conditions
Obesity, Morbid, Ventilator-Induced Lung Injury, Respiratory Failure
Interventions
Esophageal balloon, Intervention Spontaneous Breathing Trial (SBT) and Extubation, Control Spontaneous Breathing Trial and Extubation, Intervention Weaning after Tracheostomy, Control Weaning after Tracheostomy
Device · Procedure
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
2
States / cities
Chapel Hill, North Carolina • Greenville, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 4, 2024 · Synced Sep 1, 2026, 11:24 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Erbium, Chromium: Yttrium, Scandium, Gallium, Garnet (Er,Cr:YSGG) Laser in Root Canal Disinfection

NCT05959629
View directory record Official record
Conditions
Endodontic Disease, Root Canal Infection
Interventions
Waterlase Express™, BIOLASE®, Sodium Hypochlorite
Device · Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
56 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 8, 2025 · Synced Sep 1, 2026, 11:24 PM EDT
Completed Phase 1Phase 2 Interventional

Phase 1/2 Study of ThermoDox With Approved Hyperthermia in Treatment of Breast Cancer Recurrence at the Chest Wall

NCT00826085
View directory record Official record
Conditions
Breast Cancer
Interventions
ThermoDox in combination with Microwave Hyperthermia (heat)
Drug
Lead sponsor
Imunon
Industry
Eligibility
18 Years and older · Female only
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
6
States / cities
San Francisco, California • Newnan, Georgia • Baltimore, Maryland + 3 more
Source: ClinicalTrials.gov public record
Updated Jan 29, 2017 · Synced Sep 1, 2026, 11:24 PM EDT
Completed Not applicable Interventional Results available

Ventilation Strategies, Anesthetic Techniques and Cerebral Oxygenation in the Beach Chair Position

NCT01535274
View directory record Official record
Conditions
Stroke
Interventions
Inspired oxygen fraction / end tidal carbon dioxide
Other
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 85 Years
Enrollment
67 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Apr 5, 2022 · Synced Sep 1, 2026, 11:24 PM EDT
Active, not recruiting Phase 1Phase 2 Interventional

Tafasitamab, Retifanlimab, and Rituximab in Combination With Standard Therapy for the Treatment of Diffuse Large B-cell Lymphoma

NCT05455697
View directory record Official record
Conditions
Diffuse Large B-Cell Lymphoma, Grade 3b Follicular Lymphoma, High Grade B-Cell Lymphoma
Interventions
Bone Marrow Biopsy, Cyclophosphamide, Doxorubicin, Prednisone, Retifanlimab, Rituximab and Hyaluronidase Human, Tafasitamab, Vincristine, Bone Marrow Aspiration, Multigated Acquisition Scan, Fludeoxyglucose F-18, Positron Emission Tomography, Computed Tomography, Biospecimen Collection, Polatuzumab Vedotin
Procedure · Drug · Biological + 1 more
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jun 21, 2026 · Synced Sep 1, 2026, 11:24 PM EDT
Completed Phase 1 Interventional Results available

Pembrolizumab (Anti-PD-1) and AMG386 (Angiopoietin-2 (Ang-2) in Patients With Advanced Solid Tumor

NCT03239145
View directory record Official record
Conditions
Advanced Solid Tumor
Interventions
Pembrolizumab, Trebananib
Drug
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 30, 2026 · Synced Sep 1, 2026, 11:24 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Medications for Opioid Use Disorder Photosensitive Retinal Ganglion Cell Function, Sleep, and Circadian Rhythms: Implications for Treatment

NCT06104280
View directory record Official record
Conditions
Opioid Use Disorder, Sleep Disturbance
Interventions
Post-Illumination Pupillary Response (PIPR), Polysomnography, Multiple Sleep Latency Test, Ecological Momentary Assessments, Actigraphy, DLMO, Melatonin Suppression Test
Other · Behavioral · Device
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years to 80 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2029
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Aug 10, 2026 · Synced Sep 1, 2026, 11:24 PM EDT
Terminated Phase 2 Interventional Accepts healthy volunteers Results available

Antiviral Efficacy and Acceptability of Mouth Rinses for Inactivation of COVID-19

NCT04748783
View directory record Official record
Conditions
COVID19, Coronavirus Infection, SARS CoV-2 Infection
Interventions
Water, Peroxyl, Periogard, Colgate Total Zero
Other · Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 65 Years
Enrollment
2 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 15, 2022 · Synced Sep 1, 2026, 11:24 PM EDT
Not listed Phase 4 Interventional

Nitrous Oxide Prior to Intranasal Midazolam for Moderate Dental Sedation in Pediatric Patients

NCT04083105
View directory record Official record
Conditions
Dental Anxiety, Pain
Interventions
Nitrous Oxide, Midazolam
Drug
Lead sponsor
Children's Hospital Colorado
Other
Eligibility
3 Years to 8 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Sep 9, 2019 · Synced Sep 1, 2026, 11:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Influence of Race and MitoQ Supplementation on Skin Blood Flow in the Cold

NCT06784531
View directory record Official record
Conditions
Cold Exposure
Interventions
Mitoquinone mesylate (MitoQ), Placebo, Cold Water Hand Immersion, Cold Air Exposure
Dietary Supplement · Other
Lead sponsor
United States Army Research Institute of Environmental Medicine
Federal
Eligibility
18 Years to 40 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Natick, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 29, 2026 · Synced Sep 1, 2026, 11:24 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Effect of (TaVNS) on Anxiety and Brain Function in Distressed Health Care Workers

NCT05132881
View directory record Official record
Conditions
Anxiety, Distress, Emotional, Effects of Vibration, Healthy
Interventions
Neuvana 2.0 Transcutaneous Auricular Vagal Nerve Stimulation (TaVNS), Waitlist Control, Healthy Controls: Substudy Group III, Distressed Workers: Subgroup II
Other
Lead sponsor
Thomas Jefferson University
Other
Eligibility
21 Years and older
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 16, 2025 · Synced Sep 1, 2026, 11:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Iron and/or Zinc Supplementation in Mexican School Children Exposed to Lead

NCT02346188
View directory record Official record
Conditions
Lead Poisoning
Interventions
Ferrous fumarate, Zinc oxide, Placebo
Dietary Supplement
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
6 Years to 8 Years
Enrollment
602 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2000 – 2001
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 25, 2015 · Synced Sep 1, 2026, 11:24 PM EDT
Withdrawn Not applicable Interventional

Pre-emptive Hemodynamic Optimization of High Risk Patients Undergoing Elective Major Surgical Procedures

NCT00725972
View directory record Official record
Conditions
Hemorrhage
Interventions
Augment O2 Delivery by hemodynamic protocol, High Risk Surgery
Other · Procedure
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 80 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2008
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 31, 2017 · Synced Sep 1, 2026, 11:24 PM EDT
Completed No phase listed Observational

Detection of Atelectasis or Pneumothorax and Resolution With Electrical Impedance Tomography (EIT) in Newborn Infants

NCT04848727
View directory record Official record
Conditions
Atelectasis Neonatal, Pneumothorax and Air Leak
Interventions
Detecting asymmetric lung disease like atelectasis or pneumothorax with electrical impedance tomography (EIT)
Other
Lead sponsor
Sharp HealthCare
Other
Eligibility
Not listed
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Apr 21, 2026 · Synced Sep 1, 2026, 11:24 PM EDT
Not listed Phase 4 Interventional

Efficacy of Mouthwash in Reducing Salivary Carriage of COVID-19

NCT04603794
View directory record Official record
Conditions
COVID-19
Interventions
0.5% Povidone Iodine, 0.12% Chlorhexidine Gluconate Mouth Rinse, 1% Hydrogen Peroxide, 0.9% Normal Saline
Drug
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 80 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 26, 2020 · Synced Sep 1, 2026, 11:24 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effects of Carbon Monoxide Breathing on Blood Vessel Function

NCT03067701
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Mar 31, 2019 · Synced Sep 1, 2026, 11:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Short Duration High-intensity Interval Training on Peak Oxygen Consumption

NCT04656509
View directory record Official record
Conditions
Cardiovascular Fitness
Interventions
4-s sprint inertial load training
Other
Lead sponsor
University of Texas at Austin
Other
Eligibility
18 Years to 49 Years
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Dec 8, 2020 · Synced Sep 1, 2026, 11:24 PM EDT