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Showing 1–24 of 332 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Endothelium-Derived Relaxing Factor Clear all
Completed Phase 1Phase 2 Interventional Results available

Safety and Tolerability of Inhaled Nitric Oxide in Patients With Cystic Fibrosis

NCT00570349
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Nov 12, 2019 · Synced Sep 25, 2026, 9:10 AM EDT
Completed No phase listed Observational

Racial Differences: Nitric Oxide(NO) and Endothelin-1(ET-1) in Preeclampsia (PreE)

NCT00653809
View directory record Official record
Conditions
Preeclampsia
Interventions
Not listed
Lead sponsor
University of Mississippi Medical Center
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Jackson, Mississippi
Source: ClinicalTrials.gov public record
Updated Apr 5, 2012 · Synced Sep 25, 2026, 9:10 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Role of Nitric Oxide in the Impact of Aging on Myocardial Remodeling

NCT00603720
View directory record Official record
Conditions
Cardiovascular Diseases
Interventions
L-NAME, L-Arginine, Phenylephrine
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 75 Years
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2008
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Sep 11, 2018 · Synced Sep 25, 2026, 9:10 AM EDT
Completed Phase 3 Interventional

Inhaled Nitric Oxide for Preventing Chronic Lung Disease in Premature Infants

NCT00006401
View directory record Official record
Conditions
Lung Diseases, Bronchopulmonary Dysplasia
Interventions
iNO, Placebo
Drug · Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
Up to 1 Year
Enrollment
793 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2007
U.S. locations
14
States / cities
Phoenix, Arizona • Loma Linda, California • Los Angeles, California + 11 more
Source: ClinicalTrials.gov public record
Updated Oct 5, 2015 · Synced Sep 25, 2026, 9:10 AM EDT
Withdrawn Phase 2 Interventional

Treatment of Lung Injury From COVID-19 Infection With Intravenous Sodium Nitrite

NCT04401527
View directory record Official record
Conditions
COVID-19, Acute Respiratory Distress Syndrome, Acute Respiratory Failure
Interventions
Sodium Nitrite, Normal Saline
Drug
Lead sponsor
Hope Pharmaceuticals
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
2
States / cities
Tampa, Florida • Fort Worth, Texas
Source: ClinicalTrials.gov public record
Updated Sep 15, 2020 · Synced Sep 25, 2026, 9:10 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

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

NCT02482675
View directory record Official record
Conditions
Prediabetes
Interventions
Glucose, Glucose with Non-fat Milk, Glucose with Whey Protein Isolate, Glucose with Sodium Caseinate
Other
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 50 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated May 13, 2019 · Synced Sep 25, 2026, 9:10 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Aspirin Dose and Atherosclerosis in Patients With Heart Disease

NCT00272337
View directory record Official record
Conditions
Cardiovascular Diseases, Atherosclerosis, Myocardial Infarction
Interventions
Aspirin
Drug
Lead sponsor
Florida Atlantic University
Other
Eligibility
40 Years to 80 Years
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2009
U.S. locations
2
States / cities
Atlantis, Florida • Tamarac, Florida
Source: ClinicalTrials.gov public record
Updated Dec 27, 2018 · Synced Sep 25, 2026, 9:10 AM EDT
Not listed Phase 2 Interventional Accepts healthy volunteers

Beetroot Juice NO Cold Study

NCT06416228
View directory record Official record
Conditions
Respiratory Tract Infections, Cold Symptoms, Exhaled Nitric Oxide
Interventions
Beetroot juice
Dietary Supplement
Lead sponsor
Southern Methodist University
Other
Eligibility
18 Years to 30 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
2
States / cities
Dallas, Texas • Waco, Texas
Source: ClinicalTrials.gov public record
Updated May 15, 2024 · Synced Sep 25, 2026, 9:10 AM EDT
Not listed Phase 1Phase 2 Interventional

Prevention of Transfusion Related Acute Gut Injury (TRAGI) in Extremely Low Gestational Age Neonates (ELGANs) Using iNO

NCT02851472
View directory record Official record
Conditions
Anemia
Interventions
Inhaled Nitric Oxide, Placebo
Drug
Lead sponsor
New York Medical College
Other
Eligibility
2 Weeks and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
4
States / cities
Springfield, Massachusetts • Stony Brook, New York • Valhalla, New York + 1 more
Source: ClinicalTrials.gov public record
Updated Apr 23, 2019 · Synced Sep 25, 2026, 9:10 AM EDT
Completed Phase 1 Interventional

Therapeutic Application of Intravascular Nitrite for Sickle Cell Disease

NCT00095472
View directory record Official record
Conditions
Sickle Cell Anemia
Interventions
L-NMMA, Sodium Nitrite
Drug
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2007
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 4, 2019 · Synced Sep 25, 2026, 9:10 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 11, 2006 · Synced Sep 25, 2026, 9:10 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Normal Human Plasma Level of iNOS Study

NCT01605695
View directory record Official record
Conditions
Normal Human Plasma Level of iNOS
Interventions
Not listed
Lead sponsor
Research & Diagnostic Antibodies
Industry
Eligibility
18 Years to 79 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
North Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Nov 25, 2013 · Synced Sep 25, 2026, 9:10 AM EDT
Recruiting Phase 3 Interventional

Nitric Oxide for Reduced Intensive Support in Cardiac Surgery With Cardiopulmonary Bypass

NCT06702553
View directory record Official record
Conditions
Nitric Oxide, Cardiac Surgery, Cardiopulmonary Bypass, Adult Patients Undergoing Cardiovascular Surgery With Cardiopulmonary Bypass
Interventions
Nitric Oxide Gas, Standard Care Arm
Drug
Lead sponsor
Xijing Hospital
Other
Eligibility
18 Years and older
Enrollment
3,650 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 28, 2026 · Synced Sep 25, 2026, 9:10 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Endothelial Progenitor Cells and Nitric Oxide in Cardiac Rehabilitation Program Participants

NCT00308633
View directory record Official record
Conditions
Coronary Artery Disease (CAD)
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
21 Years and older
Enrollment
55 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2006
U.S. locations
2
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Sep 25, 2026, 9:10 AM EDT
Completed Phase 3 Interventional Results available

Trial of Late Surfactant for Prevention of Bronchopulmonary Dysplasia

NCT01022580
View directory record Official record
Conditions
Bronchopulmonary Dysplasia
Interventions
Infasurf surfactant (ONY, Inc.), Sham (No Treatment)
Drug
Lead sponsor
Roberta Ballard
Other
Eligibility
7 Days to 14 Days
Enrollment
511 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
21
States / cities
Little Rock, Arkansas • Berkeley, California • Oakland, California + 15 more
Source: ClinicalTrials.gov public record
Updated May 12, 2021 · Synced Sep 25, 2026, 9:10 AM EDT
Withdrawn Phase 2 Interventional

Effects of Nitric Oxide on the Endothelium During Hemolysis.

NCT03748082
View directory record Official record
Conditions
Endothelial Dysfunction, Hemolysis Intravascular, Cardiovascular Diseases, Cardiovascular Risk Factor
Interventions
Nitric Oxide, Reactive Hyperemia Index, Endothelial Cells Collection
Drug · Diagnostic Test · Procedure
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 1, 2025 · Synced Sep 25, 2026, 9:10 AM EDT
Withdrawn Phase 4 Interventional

Early iNO for Oxidative Stress, Vascular Tone and Inflammation in Babies With Hypoxic Respiratory Failure

NCT01891500
View directory record Official record
Conditions
Persistent Fetal Circulation Syndrome, Hypertension, Pulmonary, of Newborn, Persistent, Persistent Pulmonary Hypertension of Newborn
Interventions
Inhaled nitric oxide, Nitrogen Gas, Crossover iNO
Drug
Lead sponsor
University of Florida
Other
Eligibility
30 Minutes to 48 Hours
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Jan 6, 2020 · Synced Sep 25, 2026, 9:10 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Overcoming Inactivity in Older Adults: Impact on Vascular Homeostasis

NCT01212978
View directory record Official record
Conditions
Aging, Cardiology, Nitric Oxide
Interventions
Pedometer to Increase Physical Activity
Behavioral
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
50 Years to 90 Years
Enrollment
114 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Feb 27, 2019 · Synced Sep 25, 2026, 9:10 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Effect of Regular Exercise on Vascular Function and Cardiovascular Risk in a Sedentary Work Force

NCT00246883
View directory record Official record
Conditions
Vascular Formation
Interventions
Exercise
Procedure
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
Not listed
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2009
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Sep 25, 2026, 9:10 AM EDT
Completed Phase 2 Interventional

Evaluation of a Folic Acid Wound Treatment (FAWT) for Chronic, Early-Stage Diabetic Foot Ulcer (DFU) Healing

NCT04723134
View directory record Official record
Conditions
Diabetic Foot Ulcer
Interventions
Folinic acid calcium salt
Combination Product
Lead sponsor
Joseph Boykin, MD
Federal
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Oct 3, 2024 · Synced Sep 25, 2026, 9:10 AM EDT
Completed Early Phase 1 Interventional

Exercise and NO in HFrEF

NCT03136029
View directory record Official record
Conditions
Heart Failure With Reduced Ejection Fraction
Interventions
Antioxidant, Tetrahydrobiopterin (BH4), Exercise training
Dietary Supplement · Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2025
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Aug 5, 2025 · Synced Sep 25, 2026, 9:10 AM EDT
Completed Phase 2 Interventional Results available

A Phase 2, Pharmacokinetic (PK) Study of 6R-BH4 Alone or 6R-BH4 With Vitamin C in Subjects With Endothelial Dysfunction

NCT00532844
View directory record Official record
Conditions
Endothelial Dysfunction
Interventions
Sapropterin Dihydrochloride, Sapropterin Dihydrochloride and Vitamin C
Drug
Lead sponsor
BioMarin Pharmaceutical
Industry
Eligibility
18 Years to 75 Years
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Hackensack, New Jersey
Source: ClinicalTrials.gov public record
Updated May 16, 2021 · Synced Sep 25, 2026, 9:10 AM EDT
Completed Phase 2 Interventional

Arginine Treatment of Acute Chest Syndrome (Pneumonia) in Sickle Cell Disease Patients

NCT00029731
View directory record Official record
Conditions
Anemia, Sickle Cell, Pneumonia
Interventions
Arginine hydrochloride
Drug
Lead sponsor
UCSF Benioff Children's Hospital Oakland
Other
Eligibility
5 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2005
U.S. locations
1
States / cities
Oakland, California
Source: ClinicalTrials.gov public record
Updated Mar 24, 2015 · Synced Sep 25, 2026, 9:10 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 14, 2019 · Synced Sep 25, 2026, 9:10 AM EDT