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ClinicalTrials.gov public records Last synced Sep 30, 2026, 9:36 AM EDT

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Showing 25–48 of 391 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Nitric Oxide Gas Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Nitrate Supplementation and Muscle Blood Flow

NCT03459027
View directory record Official record
Conditions
Vasodilation, Blood Pressure, Active Hyperemia, Aging
Interventions
Super Beets, Beetroot powder
Dietary Supplement
Lead sponsor
University of Iowa
Other
Eligibility
60 Years to 80 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Jan 9, 2019 · Synced Sep 30, 2026, 9:36 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 25, 2022 · Synced Sep 30, 2026, 9:36 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Development of a Breath Analyzer for Asthma Screening

NCT00386737
View directory record Official record
Conditions
Asthma
Interventions
Not listed
Lead sponsor
Ekips Technologies
Industry
Eligibility
4 Years to 65 Years
Enrollment
2,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2007
U.S. locations
1
States / cities
Norman, Oklahoma
Source: ClinicalTrials.gov public record
Updated Oct 12, 2006 · Synced Sep 30, 2026, 9:36 AM EDT
Recruiting Not applicable Interventional

Red Light Treatment in Peripheral Artery Disease

NCT03203239
View directory record Official record
Conditions
Peripheral Artery Disease, Claudication, Intermittent, Vasodilation
Interventions
Red Light (670 nm energy), Octafluoropropane
Device · Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years to 85 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2028
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated May 1, 2026 · Synced Sep 30, 2026, 9:36 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Targeting Inflammation to Treat Cardiovascular Aging

NCT01775865
View directory record Official record
Conditions
Vascular Stiffness, Endothelial Dysfunction, Diastolic Dysfunction
Interventions
Salsalate, Placebo (for salsalate)
Drug
Lead sponsor
Gary L. Pierce
Other
Eligibility
18 Years to 79 Years
Enrollment
59 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2016
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated May 31, 2018 · Synced Sep 30, 2026, 9:36 AM EDT
Active, not recruiting Phase 1 Interventional

The Effects of ATLAS Therapy on Nitric Oxide Bioavailability in Patients With Intermittent Claudication

NCT04800692
View directory record Official record
Conditions
Claudication, Intermittent, Peripheral Artery Disease, Peripheral Vascular Diseases
Interventions
Tetrahydrobiopterin 10 mg/kg, Tetrahydrobiopterin 20 mg/kg, L-Ascorbate, L-Arginine
Drug
Lead sponsor
Louis Messina
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
1
States / cities
Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 15, 2026 · Synced Sep 30, 2026, 9:36 AM EDT
Completed Phase 2 Interventional Results available

Rilonacept to Improve Artery Function in Patients With Atherosclerosis

NCT00417417
View directory record Official record
Conditions
Coronary Artery Disease, Atherosclerosis, Inflammation, Endothelial Dysfunction
Interventions
Rilonacept, Placebo
Drug
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 30, 2012 · Synced Sep 30, 2026, 9:36 AM EDT
Completed Phase 2 Interventional Results available

Effects of L-arginine Supplementation in Adults With Moderate to Severe Asthma

NCT00280683
View directory record Official record
Conditions
Asthma
Interventions
L-arginine, Placebo
Drug
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 90 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2008
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated May 30, 2017 · Synced Sep 30, 2026, 9:36 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Levocetirizine Effect on Nasal Nitric Oxide and Nasal Eosinophils in Subjects With Perennial Allergic Rhinitis

NCT00894231
View directory record Official record
Conditions
Perennial Allergic Rhinitis
Interventions
levocetirizine (Xyzal), placebo
Drug
Lead sponsor
AAADRS Clinical Research Center
Other
Eligibility
12 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Coral Gables, Florida
Source: ClinicalTrials.gov public record
Updated Sep 4, 2009 · Synced Sep 30, 2026, 9:36 AM EDT
Completed Phase 2 Interventional Results available

Sodium Nitrite in Acute Myocardial Infarction

NCT00924118
View directory record Official record
Conditions
Acute Myocardial Infarction
Interventions
Sodium Nitrite
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years to 75 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2016
U.S. locations
3
States / cities
Baltimore, Maryland • Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 14, 2018 · Synced Sep 30, 2026, 9:36 AM EDT
Completed No phase listed Observational Results available

Transfusions and Nitric Oxide Level in Preterm Infants

NCT00787124
View directory record Official record
Conditions
Prematurity, Anemia, Necrotizing Enterocolitis
Interventions
Not listed
Lead sponsor
Duke University
Other
Eligibility
Up to 365 Days
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 28, 2018 · Synced Sep 30, 2026, 9:36 AM EDT
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

External Nitric Oxide Measurement Through SNO Degradation

NCT04903535
View directory record Official record
Conditions
Healthy, Unconscious
Interventions
Alonefire SV003 10W 365nm UV Flashlight
Device
Lead sponsor
Indiana University
Other
Eligibility
1 Day to 75 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
2
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Feb 9, 2026 · Synced Sep 30, 2026, 9:36 AM EDT
Active, not recruiting Not applicable Interventional

Early Feasibility Study Evaluating the 3P-100 Device in Subjects With PH-ILD

NCT05867914
View directory record Official record
Conditions
Hypertension, Pulmonary, Lung Diseases, Interstitial
Interventions
Inhaled Nitric Oxide (iNO)
Device
Lead sponsor
Third Pole Therapeutics, Inc.
Industry
Eligibility
22 Years to 84 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
3
States / cities
Tampa, Florida • Cincinnati, Ohio • Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Feb 14, 2024 · Synced Sep 30, 2026, 9:36 AM EDT
Active, not recruiting Early Phase 1 Interventional Accepts healthy volunteers

Role of NADPH Oxidase in Microvascular Dysfunction Following GDM

NCT05946798
View directory record Official record
Conditions
Gestational Diabetes, Oxidative Stress, Vascular Endothelial Function
Interventions
Acetylcholine, Insulin aspart
Drug
Lead sponsor
Anna Stanhewicz, PhD
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2028
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Jul 29, 2026 · Synced Sep 30, 2026, 9:36 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Regulation of Postprandial Nitric Oxide Bioavailability and Vascular Function By Dairy Fat

NCT02482610
View directory record Official record
Conditions
Prediabetes
Interventions
Glucose, Glucose with Whole Fat Milk, Glucose with Non-fat Milk
Other
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 50 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 29, 2019 · Synced Sep 30, 2026, 9:36 AM EDT
Completed Phase 2 Interventional

Two-Part Dose-Confirming Study of Pulsed Inhaled Nitric Oxide in Subjects With WHO Group 3 Pulmonary Hypertension Associated With COPD

NCT01728220
View directory record Official record
Conditions
Pulmonary Hypertension, Chronic Obstructive Pulmonary Disease
Interventions
Inhaled NO delivered via INOpulse DS-C Device, Placebo delivered via INOpulse DS-C Device
Combination Product
Lead sponsor
Bellerophon Pulse Technologies
Industry
Eligibility
40 Years to 80 Years
Enrollment
159 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
43
States / cities
Jasper, Alabama • Flagstaff, Arizona • Phoenix, Arizona + 35 more
Source: ClinicalTrials.gov public record
Updated Feb 27, 2023 · Synced Sep 30, 2026, 9:36 AM EDT
Completed Not applicable Interventional

Nitric Oxide Supplementation on Neurocognitive Functions in Patients With ASLD

NCT03064048
View directory record Official record
Conditions
Argininosuccinate Lyase Deficiency, Urea Cycle Disorder, Urea Cycle Disorders, Inborn, Argininosuccinic Aciduria
Interventions
Neo-ASA, Placebo
Dietary Supplement
Lead sponsor
Baylor College of Medicine
Other
Eligibility
6 Years to 50 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 27, 2023 · Synced Sep 30, 2026, 9:36 AM EDT
Completed Phase 1 Interventional Results available

Phase Ib of L-NMMA and Pembrolizumab

NCT03236935
View directory record Official record
Conditions
Non-Small Cell Lung Cancer, Malignant Melanoma, Head and Neck Squamous Cell Carcinoma, Classical Hodgkin Lymphoma, Urothelial Carcinoma Bladder, DNA Repair-Deficiency Disorders
Interventions
L-NMMA, Pembrolizumab
Drug
Lead sponsor
The Methodist Hospital Research Institute
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Apr 9, 2026 · Synced Sep 30, 2026, 9:36 AM EDT
Recruiting Phase 1 Interventional

Inhaled Nitric Oxide in Acute Ischemic Stroke Patients Undergoing Mechanical Thrombectomy

NCT05871606
View directory record Official record
Conditions
Cerebrovascular Disorders, Acute Cerebrovascular Disease
Interventions
iNO
Drug
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years to 80 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
2
States / cities
Charlotte, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 23, 2026 · Synced Sep 30, 2026, 9:36 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Use of Nitric Oxide Metabolites for Predicting Embryo Quality in In-Vitro Fertilization (IVF)

NCT00788619
View directory record Official record
Conditions
Infertility
Interventions
Transfer of embryos on day 3 or day 5 after fertilization., Day 5 transfer
Procedure
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years to 37 Years · Female only
Enrollment
2 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Lutherville, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 11, 2017 · Synced Sep 30, 2026, 9:36 AM EDT
Completed No phase listed Observational

Phase II Evaluation of Exhaled Nitric Oxide (NO)

NCT01392144
View directory record Official record
Conditions
Lung Cancer
Interventions
Nitric oxide breath test, Questionnaires
Procedure · Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Apr 4, 2013 · Synced Sep 30, 2026, 9:36 AM EDT
Completed No phase listed Observational Results available

Use of FeNO to Identify Eosinophilic Inflammation in Patients Age 40 Years and Above With Chronic Obstructive Airways Disease

NCT01634620
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease (COPD)
Interventions
NIOX MINO® Instrument (09-1100)
Device
Lead sponsor
Aerocrine AB
Industry
Eligibility
40 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012
U.S. locations
2
States / cities
Chapel Hill, North Carolina • Sanford, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 12, 2014 · Synced Sep 30, 2026, 9:36 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 2, 2025 · Synced Sep 30, 2026, 9:36 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of Dietary Nitric Oxide and Anthocyanins on Anaerobic Exercise Performance

NCT03631394
View directory record Official record
Conditions
Exercise
Interventions
beetroot and anthocyanin, beetroot and placebo
Other
Lead sponsor
Loma Linda University
Other
Eligibility
21 Years to 35 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Loma Linda, California
Source: ClinicalTrials.gov public record
Updated May 15, 2019 · Synced Sep 30, 2026, 9:36 AM EDT