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Showing 1–24 of 391 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Nitric Oxide Gas Clear all
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 4, 2026, 8:38 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Cheese Consumption and Human Microvascular Function

NCT03376555
View directory record Official record
Conditions
Microvascular Dysfunction
Interventions
Low sodium no cheese, Low sodium cheese, High sodium no cheese, High sodium cheese
Dietary Supplement
Lead sponsor
Lacy Alexander
Other
Eligibility
55 Years to 75 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
1
States / cities
University Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 3, 2025 · Synced Sep 4, 2026, 8:38 AM EDT
Terminated Not applicable Interventional

Multi-Center Trial Utilizing Low Frequency Ultrasound in the Prevention of Post-Contrast Acute Kidney Injury

NCT04877847
View directory record Official record
Conditions
Contrast-induced Nephropathy, Chronic Kidney Diseases
Interventions
Low-frequency therapeutic ultrasound (LOTUS), LOTUS System with Ultrasound Disabled
Device
Lead sponsor
Sonogenix
Industry
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
4
States / cities
Detroit, Michigan • Petoskey, Michigan • Pittsburgh, Pennsylvania + 1 more
Source: ClinicalTrials.gov public record
Updated Apr 11, 2023 · Synced Sep 4, 2026, 8:38 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Long Term Nitric Oxide Bioavailability on Vascular Health in Chronic Obstructive Pulmonary Disease

NCT02774226
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease (COPD)
Interventions
Tetrahydrobiopterin (BH4), Antioxidant Cocktail
Drug · Dietary Supplement
Lead sponsor
Augusta University
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
Augusta, Georgia
Source: ClinicalTrials.gov public record
Updated Feb 22, 2021 · Synced Sep 4, 2026, 8:38 AM EDT
Recruiting Early Phase 1 Interventional Accepts healthy volunteers

Sex Differences in the Vascular Effects of E-cigarette Use

NCT06159608
View directory record Official record
Conditions
E-cigarette Use
Interventions
Local heating + L-NAME (NG-nitro-L-arginine methyl ester; nitric oxide synthase inhibitor), Chronic estrogen exposure
Drug · Other
Lead sponsor
Anna Stanhewicz, PhD
Other
Eligibility
18 Years to 24 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Dec 14, 2025 · Synced Sep 4, 2026, 8:38 AM EDT
Completed No phase listed Observational

Racial Differences in Control of Blood Vessel Tone and Blood Flow

NCT00001747
View directory record Official record
Conditions
Atherosclerosis, Healthy, Hypertension
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
Not listed
Enrollment
108 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1998 – 2001
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Sep 4, 2026, 8:38 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Effects of Neo40(TM) With Caffeine on Cycling Time Trial Performance

NCT01710761
View directory record Official record
Conditions
Healthy
Interventions
Placebo, Nitrate supplement with caffeine
Dietary Supplement
Lead sponsor
University of Texas at Austin
Other
Eligibility
21 Years to 49 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jan 22, 2013 · Synced Sep 4, 2026, 8:38 AM EDT
Completed Phase 1Phase 2 Interventional Results available

L-NMMA Plus Taxane Chemotherapy in Refractory Locally Advanced or Metastatic Triple Negative Breast Cancer Patients

NCT02834403
View directory record Official record
Conditions
Metastatic Triple Negative Breast Cancer
Interventions
L-NMMA, Docetaxel, Amlodipine, Pegfilgrastim, Enteric-coated aspirin
Drug
Lead sponsor
The Methodist Hospital Research Institute
Other
Eligibility
18 Years and older · Female only
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Dec 14, 2023 · Synced Sep 4, 2026, 8:38 AM EDT
Terminated Phase 1 Interventional Results available

Stellate Ganglion Blockade in Corona Virus 2019 (COVID-19) Positive Patients

NCT04445337
View directory record Official record
Conditions
COVID 19, ARDS
Interventions
Stellate Ganglion Block
Drug
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years to 85 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Jan 19, 2025 · Synced Sep 4, 2026, 8:38 AM EDT
Completed Not applicable Interventional

APT001 Plasma/NO Generator to Treat Diabetic Foot Ulcer in Adults

NCT02356835
View directory record Official record
Conditions
Foot Ulcer, Diabetic
Interventions
APT001, SHAM
Device
Lead sponsor
Origin Inc.
Industry
Eligibility
19 Years to 80 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
4
States / cities
Montgomery, Alabama • Fresno, California • New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 16, 2016 · Synced Sep 4, 2026, 8:38 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

iNOS With Positron Emission Tomography (PET) in Cellular Inflammation.

NCT01066637
View directory record Official record
Conditions
Patients With Post Orthotopic Heart Transplantation Status
Interventions
[18F](+/-)NOS
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
21 Years and older
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Aug 6, 2020 · Synced Sep 4, 2026, 8:38 AM EDT
Completed Phase 3 Interventional Results available

A Study of the Effect of Nebivolol to Evaluate Its Vasodilatory Effects in Hypertensive Patients

NCT00648895
View directory record Official record
Conditions
Hypertension
Interventions
Nebivolol, Metoprolol ER (TM)
Drug
Lead sponsor
Forest Laboratories
Industry
Eligibility
18 Years to 79 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2007
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 19, 2010 · Synced Sep 4, 2026, 8:38 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 Apr 30, 2026 · Synced Sep 4, 2026, 8:38 AM EDT
Completed Phase 3 Interventional

Follow-up at School-age of Children Who Participated in the Efficacy Study of Nitric Oxide for Premature Infants

NCT00152542
View directory record Official record
Conditions
Prematurity, Respiratory Distress Syndrome,Hypoxemia
Interventions
Inhaled nitric oxide, Placebo
Drug
Lead sponsor
University of Chicago
Other
Eligibility
4 Years to 6 Years
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 11, 2013 · Synced Sep 4, 2026, 8:38 AM EDT
Recruiting Early Phase 1 Interventional Accepts healthy volunteers

Antidepressant Therapy for Improved Blood Vessel Health After Preeclampsia

NCT07715669
View directory record Official record
Conditions
Preeclampsia, Endothelial Function
Interventions
Paroxetine Hydrochloride, Ascorbic acid (Vitamin C)
Drug
Lead sponsor
Anna Stanhewicz, PhD
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Jul 28, 2026 · Synced Sep 4, 2026, 8:38 AM EDT
Recruiting Not applicable Interventional

Utility of PCD Diagnostics to Improve Clinical Care

NCT03704207
View directory record Official record
Conditions
Primary Ciliary Dyskinesia
Interventions
nNO testing
Other
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
1 Year and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2028
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jul 5, 2026 · Synced Sep 4, 2026, 8:38 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Beetroot Juice for Boosting Immunity During a Time of Stress.

NCT06434181
View directory record Official record
Conditions
Healthy
Interventions
Beetroot Juice, Placebo Control
Dietary Supplement
Lead sponsor
Baylor University
Other
Eligibility
18 Years to 40 Years
Enrollment
114 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
2
States / cities
Dallas, Texas • Waco, Texas
Source: ClinicalTrials.gov public record
Updated May 29, 2024 · Synced Sep 4, 2026, 8:38 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 4, 2026, 8:38 AM EDT
Completed Not applicable Interventional Results available

Dietary Supplementation With Soy Isoflavones in Asthma

NCT00277446
View directory record Official record
Conditions
Asthma
Interventions
Soy isoflavones
Drug
Lead sponsor
Northwestern University
Other
Eligibility
18 Years to 50 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 24, 2011 · Synced Sep 4, 2026, 8:38 AM EDT
Withdrawn Phase 1 Interventional

A Study of Stellate Ganglion Block and / or Reserpine in Group 2 Pulmonary Hypertension

NCT02684786
View directory record Official record
Conditions
Pulmonary Artery Hypertension
Interventions
reserpine, stellate ganglion block, lidocaine
Drug · Procedure
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 100 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated May 21, 2019 · Synced Sep 4, 2026, 8:38 AM EDT
Not listed Not applicable Interventional

Study of Arginine Metabolism and Nitric Oxide Formation in Relation to Glutamine Supply in Severely Burned Patients

NCT00216970
View directory record Official record
Conditions
Burns
Interventions
Alteration in nutritional support
Dietary Supplement
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1997 – 2009
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 12, 2009 · Synced Sep 4, 2026, 8:38 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Global Vascular Effects of Intermittent Pneumatic Compression-Pilot Study

NCT01064323
View directory record Official record
Conditions
Coronary Heart Disease
Interventions
Intermittent pneumatic compression of the lower extremities
Device
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years to 90 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2014
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 16, 2017 · Synced Sep 4, 2026, 8:38 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Blood Flow and Vascular Function in Cystic Fibrosis

NCT02057458
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Sildenafil (Acute-1 hour), Sildenafil (Subchronic-4 weeks), Placebo
Drug
Lead sponsor
Augusta University
Other
Eligibility
18 Years and older
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2018
U.S. locations
1
States / cities
Augusta, Georgia
Source: ClinicalTrials.gov public record
Updated Apr 23, 2020 · Synced Sep 4, 2026, 8:38 AM EDT
Completed Phase 1 Interventional

Evaluation of Hydroxyurea Plus L-arginine or Sildenafil to Treat Sickle Cell Anemia

NCT00056433
View directory record Official record
Conditions
Sickle Cell Anemia
Interventions
Hydroxyurea, L-Arginine, Sildenafil
Drug
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
16 Years and older
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2006
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 21, 2019 · Synced Sep 4, 2026, 8:38 AM EDT