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ClinicalTrials.gov public records Last synced Oct 18, 2026, 11:09 AM EDT

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Showing 1–24 of 148 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: oxygen nitrogen Clear all
Completed Phase 1Phase 2 Interventional Results available

Inhaled NO as an Anti-inflammatory and Anti-reperfusion Agent in Infants and Children Undergoing Cardiopulmonary Bypass

NCT00585013
View directory record Official record
Conditions
Congenital Heart Disease
Interventions
Nitric Oxide
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
Up to 16 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Nov 4, 2015 · Synced Oct 18, 2026, 11:09 AM EDT
Completed Phase 2 Interventional Results available

Exploring Nitrous Oxide Effects for Post Traumatic Stress Disorder (PTSD)

NCT03375294
View directory record Official record
Conditions
Post Traumatic Stress Disorder
Interventions
Nitrous Oxide
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 80 Years
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Jul 24, 2020 · Synced Oct 18, 2026, 11:09 AM EDT
Completed Phase 2 Interventional Results available

Nitric Oxide Inhalation to Treat Sickle Cell Pain Crises

NCT00094887
View directory record Official record
Conditions
Anemia, Sickle Cell
Interventions
Nitric Oxide, Placebo
Drug
Lead sponsor
Mallinckrodt
Industry
Eligibility
10 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2008
U.S. locations
11
States / cities
Birmingham, Alabama • Oakland, California • Aurora, Colorado + 7 more
Source: ClinicalTrials.gov public record
Updated Feb 5, 2020 · Synced Oct 18, 2026, 11:09 AM EDT
Terminated Not applicable Interventional

Recovery After Dialysis-Requiring Acute Kidney Injury

NCT03305549
View directory record Official record
Conditions
Acute Kidney Injury
Interventions
Conservative dialysis strategy, TIW dialysis strategy
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 100 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 19, 2025 · Synced Oct 18, 2026, 11:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Decompression Tables for Diving at Altitude

NCT03390335
View directory record Official record
Conditions
Decompression Sickness, Acute Mountain Sickness
Interventions
Pressure, Breathing Gas
Other
Lead sponsor
Duke University
Other
Eligibility
18 Years to 40 Years
Enrollment
103 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 14, 2021 · Synced Oct 18, 2026, 11:09 AM EDT
Completed Phase 2 Interventional Results available

Effect of iNO on Invasively Derived Pulmonary Pressures in Patients With PAH

NCT02734953
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Nitric Oxide
Drug
Lead sponsor
Allegheny Singer Research Institute (also known as Allegheny Health Network Research Institute)
Other
Eligibility
18 Years to 80 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 24, 2018 · Synced Oct 18, 2026, 11:09 AM EDT
Recruiting Phase 3 Interventional

NO During CPB in Neonates to Reduce Risk of AKI

NCT04216927
View directory record Official record
Conditions
AKI, CHD - Congenital Heart Disease, Surgery
Interventions
Nitric Oxide, Oxygen
Drug
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
1 Day to 31 Days
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 5, 2026 · Synced Oct 18, 2026, 11:09 AM EDT
Withdrawn Phase 2 Interventional

Use of Inhaled Nitric Oxide to Prevent Pulmonary Hypertension Associated to Stored Blood Transfusion

NCT02217683
View directory record Official record
Conditions
Hypertension, Pulmonary, Hemolysis
Interventions
Nitric Oxide
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 18, 2016 · Synced Oct 18, 2026, 11:09 AM EDT
Enrolling by invitation Phase 2Phase 3 Interventional

Nitric Oxide Effect on Brain and Kidney in Pediatric Patients Undergoing Cardiopulmonary Bypass

NCT05101746
View directory record Official record
Conditions
Congenital Heart Disease, Congenital Heart Defect, Congenital Heart Malformations
Interventions
Nitric Oxide (NO) 20 part per million (ppm), Standard of care cardiopulmonary bypass
Drug · Other
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
0 Years to 1 Year
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Oct 8, 2025 · Synced Oct 18, 2026, 11:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Role of Instructions in Nitrous Oxide Effects and Choice - 10

NCT00000258
View directory record Official record
Conditions
Opioid-Related Disorders, Substance-Related Disorders
Interventions
Nitrous oxide 10% & placebo, Nitrous oxide 20% & placebo, Nitrous oxide 30% & placebo, Nitrous oxide 40% and placebo
Drug
Lead sponsor
University of Chicago
Other
Eligibility
21 Years to 32 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1996 – 1997
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 28, 2015 · Synced Oct 18, 2026, 11:09 AM EDT
Withdrawn Phase 3 Interventional

Study of PAH Subjects With LTOT Use That Have Demonstrated Improved Exercise Tolerance With the Use of Inhaled Nitric

NCT03602781
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Placebo, iNO
Drug
Lead sponsor
Bellerophon Pulse Technologies
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
2
States / cities
Chicago, Illinois • Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Feb 21, 2023 · Synced Oct 18, 2026, 11:09 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Magnetic Resonance Spectroscopy Studies of Acute Hypoxic and Hyperoxic Breathing in Healthy Volunteers

NCT03106376
View directory record Official record
Conditions
Healthy
Interventions
16% O2 gas in breathed air, 26% O2 gas in breathed air
Other
Lead sponsor
Mclean Hospital
Other
Eligibility
18 Years to 40 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 30, 2023 · Synced Oct 18, 2026, 11:09 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Effect of Nitrous Oxide (N2O) on Intraocular Pressure in Healthy Volunteers

NCT00967694
View directory record Official record
Conditions
Glaucoma, Sedation
Interventions
Nitrous oxide
Drug
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 40 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Sep 23, 2014 · Synced Oct 18, 2026, 11:09 AM EDT
Completed Not applicable Interventional Results available

Adjunctive Nitrous Oxide During Emergency Department Propofol Sedation in Adults

NCT02410707
View directory record Official record
Conditions
Joint Dislocation, Perianal Abscess, Abscess
Interventions
Nitrous Oxide arm, Propofol, Oxygen
Drug
Lead sponsor
Albert Einstein Healthcare Network
Other
Eligibility
18 Years and older
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 8, 2020 · Synced Oct 18, 2026, 11:09 AM EDT
Completed Not applicable Interventional

Effects of Combined Sevoflurane and Nitrous Oxide Inhalation - 14

NCT00000262
View directory record Official record
Conditions
Opioid-Related Disorders, Substance-Related Disorders
Interventions
30% Nitrous oxide, 0.4% Sevoflurane, 0.2% sevoflurane, Placebo
Drug · Other
Lead sponsor
University of Chicago
Other
Eligibility
Not listed
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1996 – 1999
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 27, 2015 · Synced Oct 18, 2026, 11:09 AM EDT
Active, not recruiting Phase 2Phase 3 Interventional

Testing CC-486 (Oral Azacitidine) Plus the Standard Drug Therapy in Patients 75 Years or Older With Newly Diagnosed Diffuse Large B Cell Lymphoma

NCT04799275
View directory record Official record
Conditions
Ann Arbor Stage III Diffuse Large B-Cell Lymphoma, Ann Arbor Stage IIX (Bulky) Diffuse Large B-Cell Lymphoma, Ann Arbor Stage IV Diffuse Large B-Cell Lymphoma, Diffuse Large B-Cell Lymphoma Activated B-Cell Type, Diffuse Large B-Cell Lymphoma Associated With Chronic Inflammation, Diffuse Large B-Cell Lymphoma Germinal Center B-Cell Type, Diffuse Large B-Cell Lymphoma, Not Otherwise Specified, EBV-Positive Diffuse Large B-Cell Lymphoma, Not Otherwise Specified, Grade 3b Follicular Lymphoma, HHV8-Positive Diffuse Large B-Cell Lymphoma, Not Otherwise Specified, High Grade B-Cell Lymphoma With MYC and BCL2 and/or BCL6 Rearrangements, High Grade B-Cell Lymphoma With MYC and BCL2 or BCL6 Rearrangements, High Grade B-Cell Lymphoma With MYC, BCL2, and BCL6 Rearrangements, High Grade B-Cell Lymphoma, Not Otherwise Specified, Intravascular Large B-Cell Lymphoma, Lymphoplasmacytic Lymphoma, Nodular Lymphocyte Predominant B-Cell Lymphoma, Primary Cutaneous Diffuse Large B-Cell Lymphoma, Leg Type, T-Cell/Histiocyte-Rich Large B-Cell Lymphoma, Transformed Follicular Lymphoma to Diffuse Large B-Cell Lymphoma, Transformed Marginal Zone Lymphoma to Diffuse Large B-Cell Lymphoma
Interventions
Biospecimen Collection, Computed Tomography, Cyclophosphamide, Doxorubicin Hydrochloride, Echocardiography Test, Multigated Acquisition Scan, Oral Azacitidine, Positron Emission Tomography, Prednisone, Questionnaire Administration, Rituximab, Rituximab and Hyaluronidase Human, Vincristine Sulfate
Procedure · Drug · Other + 1 more
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
75 Years and older
Enrollment
422 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
176
States / cities
Tucson, Arizona • Little Rock, Arkansas • Anaheim, California + 136 more
Source: ClinicalTrials.gov public record
Updated Oct 1, 2026 · Synced Oct 18, 2026, 11:09 AM EDT
Completed Phase 4 Interventional

Inhaled Nitric Oxide by Oxygen Hood in Neonates

NCT00732537
View directory record Official record
Conditions
Respiratory Failure, Infant, Persistent Fetal Circulation
Interventions
inhaled Nitric Oxide, Oxygen (>90% by hood) - standard therapy
Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
1 Hour to 1 Week
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2005
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Aug 12, 2008 · Synced Oct 18, 2026, 11:09 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Differential Acute Tolerance Development to Effects of Nitrous Oxide - 7

NCT00000255
View directory record Official record
Conditions
Opioid-Related Disorders, Substance-Related Disorders
Interventions
Nitrous oxide
Drug
Lead sponsor
University of Chicago
Other
Eligibility
21 Years to 37 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1995 – 1996
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 28, 2015 · Synced Oct 18, 2026, 11:09 AM 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 10, 2019 · Synced Oct 18, 2026, 11:09 AM EDT
Completed Not applicable Interventional Results available

Addition of Nitrous Oxide and Its Effects on Depth of Anesthesia

NCT00717574
View directory record Official record
Conditions
Deep Sedation, Anesthesia, General
Interventions
Sevoflurane group, Propofol group
Drug
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 55 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Jul 31, 2017 · Synced Oct 18, 2026, 11:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Sequential Exposure to Nitrogen Dioxide and Ozone in Healthy Adult Human Volunteers.

NCT02133586
View directory record Official record
Conditions
Respiratory Depression
Interventions
Ozone, Nitrogen dioxide
Other
Lead sponsor
Environmental Protection Agency (EPA)
Federal
Eligibility
18 Years to 40 Years
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 17, 2020 · Synced Oct 18, 2026, 11:09 AM EDT
Active, not recruiting Phase 3 Interventional

Nivolumab in Combination With Chemo-Immunotherapy for the Treatment of Newly Diagnosed Primary Mediastinal B-Cell Lymphoma

NCT04759586
View directory record Official record
Conditions
Primary Mediastinal Large B-Cell Lymphoma
Interventions
Biospecimen Collection, Bone Marrow Aspiration, Bone Marrow Biopsy, Computed Tomography, Cyclophosphamide, Doxorubicin Hydrochloride, Echocardiography Test, Etoposide Phosphate, Filgrastim, Lumbar Puncture, Nivolumab, Pegfilgrastim, Positron Emission Tomography, Prednisolone, Prednisone, Radiation Therapy, Rituximab, Rituximab and Hyaluronidase Human, Vincristine Sulfate
Procedure · Drug · Biological + 1 more
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
2 Years and older
Enrollment
244 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
215
States / cities
Birmingham, Alabama • Mobile, Alabama • Anchorage, Alaska + 162 more
Source: ClinicalTrials.gov public record
Updated Oct 1, 2026 · Synced Oct 18, 2026, 11:09 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Colonoscopy Using Nitrous Oxide- A Pilot Study in the USA

NCT04305158
View directory record Official record
Conditions
Nitrous Oxide
Interventions
Nitrous Oxide
Drug
Lead sponsor
University of Arkansas
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Apr 11, 2024 · Synced Oct 18, 2026, 11:09 AM EDT
Terminated Not applicable Interventional

Functional Magnetic Resonance Imaging (fMRI) Vascular Reactivity in Cerebral Cavernous Malformations (CCM)

NCT05298709
View directory record Official record
Conditions
Cerebral Cavernous Malformation
Interventions
Hyperventilation and CO2 challenge
Other
Lead sponsor
University of New Mexico
Other
Eligibility
18 Years and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Jun 11, 2025 · Synced Oct 18, 2026, 11:09 AM EDT