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ClinicalTrials.gov public records Last synced Sep 9, 2026, 11:15 AM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Inhaled Nitrogen Clear all
Active, not recruiting Phase 2 Interventional

Evolutionary Therapy for Rhabdomyosarcoma

NCT04388839
View directory record Official record
Conditions
Rhabdomyosarcoma
Interventions
Vincristine, Cyclophosphamide, Vinorelbine, Actinomycin D, Cyclophosphamide Pill
Drug
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
Not listed
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
18
States / cities
Birmingham, Alabama • Aurora, Colorado • Hartford, Connecticut + 15 more
Source: ClinicalTrials.gov public record
Updated Nov 25, 2025 · Synced Sep 9, 2026, 11:15 AM EDT
Completed Phase 3 Interventional Results available

Nitrous Oxide for the Treatment of Complex Regional Pain Syndrome

NCT03879538
View directory record Official record
Conditions
Complex Regional Pain Syndrome
Interventions
Nitrous Oxide, Oxygen
Drug
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years to 65 Years
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 8, 2024 · Synced Sep 9, 2026, 11:15 AM EDT
Completed Phase 1 Interventional

Phase I Trial of Inhaled Nitric Oxide to Treat Acute Pulmonary Embolism

NCT00848731
View directory record Official record
Conditions
Pulmonary Embolism
Interventions
nitric oxide
Drug
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Charlotte, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 24, 2022 · Synced Sep 9, 2026, 11:15 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Inspired Helium for Ischemic Protection During Knee Replacement Surgery

NCT02012361
View directory record Official record
Conditions
Ischemia
Interventions
Control Group, Single-Dose Heliox Group, Muscle Biopsy
Procedure
Lead sponsor
University of Florida
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Aug 11, 2019 · Synced Sep 9, 2026, 11:15 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 20, 2023 · Synced Sep 9, 2026, 11:15 AM EDT
Completed Not applicable Interventional Results available

Imaging Study of the Lungs During an Allergic Asthma Attack

NCT01547286
View directory record Official record
Conditions
Asthma, Atopy
Interventions
Standardized Cat Allergen Extract and Standardized Dust Mite Allergen, Computed Tomography imaging, functional Positron Emission Tomography imaging, Nebulized methacholine inhalation
Biological · Radiation · Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 21, 2017 · Synced Sep 9, 2026, 11:15 AM EDT
Recruiting Not applicable Interventional

Carbon Dioxide (CO2) Chemosensitivity and SUDEP

NCT04134754
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jun 22, 2026 · Synced Sep 9, 2026, 11:15 AM EDT
Withdrawn Phase 2 Interventional

iNOPulse for COVID-19

NCT04398290
View directory record Official record
Conditions
COVID-19, Hypoxemia, Hypoxemic Respiratory Failure
Interventions
Inhaled nitric oxide (iNO), Nitrogen gas, Oxygen gas
Drug
Lead sponsor
Roger Alvarez
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Aug 18, 2020 · Synced Sep 9, 2026, 11:15 AM EDT
Active, not recruiting Early Phase 1 Interventional Accepts healthy volunteers

Methemoglobin Concentration in High Dose Inhaled Nitric Oxide

NCT05612074
View directory record Official record
Conditions
Healthy Subjects
Interventions
Inhaled Nitric Oxide
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 64 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 1, 2025 · Synced Sep 9, 2026, 11:15 AM EDT
Active, not recruiting Early Phase 1 Interventional

Xenon Inhalation Therapy for Major Depressive Disorder and Bipolar Disorder

NCT03748446
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jun 22, 2026 · Synced Sep 9, 2026, 11:15 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Nitrous Oxide Neuroimaging

NCT06702631
View directory record Official record
Conditions
Anesthesia, Pain, Amnesia
Interventions
Nitrous oxide, Peripheral Nerve Stimulation
Drug · Device
Lead sponsor
Keith M Vogt
Other
Eligibility
18 Years to 59 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 18, 2026 · Synced Sep 9, 2026, 11:15 AM EDT
Completed Phase 3 Interventional Results available

Effect of Nitric Oxide in Cardiac Surgery Patients With Endothelial Dysfunction.

NCT02836899
View directory record Official record
Conditions
Acute Kidney Injury
Interventions
Nitric Oxide, Placebo
Drug · Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 9, 2026 · Synced Sep 9, 2026, 11:15 AM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

Effect of Nitrous Oxide on Aggression.

NCT06118567
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Mar 26, 2025 · Synced Sep 9, 2026, 11:15 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 23, 2018 · Synced Sep 9, 2026, 11:15 AM EDT
Active, not recruiting Phase 1 Interventional

Venetoclax and a Pediatric-Inspired Regimen for the Treatment of Newly Diagnosed B Cell Acute Lymphoblastic Leukemia

NCT05157971
View directory record Official record
Conditions
B Acute Lymphoblastic Leukemia, Ph-Like Acute Lymphoblastic Leukemia
Interventions
Cyclophosphamide, Cytarabine, Daunorubicin Hydrochloride, Mercaptopurine, Methotrexate, Pegaspargase, Prednisone, Venetoclax, Vincristine Sulfate
Drug
Lead sponsor
City of Hope Medical Center
Other
Eligibility
18 Years to 54 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Duarte, California
Source: ClinicalTrials.gov public record
Updated May 27, 2026 · Synced Sep 9, 2026, 11:15 AM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

Respiratory and Real-time Dynamics in Exercise-Induced Paradoxical Vocal Fold Motion

NCT07420530
View directory record Official record
Conditions
Exercise-Induced Vocal Cord Dysfunction, Paradoxical Vocal Fold Motion, Vocal Cord Dysfunction
Interventions
Carbon Dioxide, Mechano-acoustic device
Drug · Device
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 26 Years
Enrollment
130 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2032
U.S. locations
1
States / cities
Bloomington, Indiana
Source: ClinicalTrials.gov public record
Updated Aug 13, 2026 · Synced Sep 9, 2026, 11:15 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 29, 2023 · Synced Sep 9, 2026, 11:15 AM EDT
Recruiting Phase 1Phase 2 Interventional

Intermittent Hypoxia-initiated Plasticity in Humans: A Multi-pronged Therapeutic Approach to Treat Sleep Apnea and Overlapping Co-morbidities

NCT05558501
View directory record Official record
Conditions
Obstructive Sleep Apnea
Interventions
Mild Intermittent Hypoxia, Sham MIH
Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
30 Years to 60 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Dec 3, 2025 · Synced Sep 9, 2026, 11:15 AM EDT
Withdrawn Phase 2 Interventional

Safety and Tolerability Study of Inhaled Carbon Monoxide in Kidney Transplant Patients

NCT00531856
View directory record Official record
Conditions
Kidney Transplantation
Interventions
Inhaled Carbon Monoxide
Drug
Lead sponsor
Mallinckrodt
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
3
States / cities
San Francisco, California • Chicago, Illinois • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 18, 2016 · Synced Sep 9, 2026, 11:15 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

NMDA Receptor Antagonist Nitrous Oxide Targets Affective Brain Circuits

NCT02994433
View directory record Official record
Conditions
Depressive Disorder, Major, Depressive Disorder, Treatment-Resistant
Interventions
Nitrous Oxide, Placebo gas, MRI
Drug · Device
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2027
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 28, 2026 · Synced Sep 9, 2026, 11:15 AM EDT
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 3, 2015 · Synced Sep 9, 2026, 11:15 AM EDT
Terminated Phase 2 Interventional Results available

Nitric Oxide in Myocardial Infarction Size

NCT00568061
View directory record Official record
Conditions
Acute Myocardial Infarction, ST Elevation MI, STEMI
Interventions
Nitric Oxide, Placebo
Drug
Lead sponsor
Mallinckrodt
Industry
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
11
States / cities
Mobile, Alabama • Miami, Florida • Chicago, Illinois + 6 more
Source: ClinicalTrials.gov public record
Updated Nov 20, 2019 · Synced Sep 9, 2026, 11:15 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 9, 2026, 11:15 AM EDT
Completed Phase 2 Interventional Results available

Examining the Use of Non-Invasive Inhaled Nitric Oxide to Reduce Chronic Lung Disease in Premature Newborns

NCT00955487
View directory record Official record
Conditions
Bronchopulmonary Dysplasia
Interventions
Inhaled Nitric Oxide (iNO), Nitrogen (placebo)
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
Up to 72 Hours
Enrollment
124 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2014
U.S. locations
6
States / cities
Birmingham, Alabama • San Diego, California • Aurora, Colorado + 3 more
Source: ClinicalTrials.gov public record
Updated Jun 14, 2017 · Synced Sep 9, 2026, 11:15 AM EDT