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ClinicalTrials.gov public records Last synced Oct 21, 2026, 3:46 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 49 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Forearm blood flow Clear all
Not yet recruiting No phase listed Observational Accepts healthy volunteers

Hand Perfusion and Pulse Oximetry Performance

NCT06925646
View directory record Official record
Conditions
Oxygen Saturation
Interventions
Finger hyperperfusion via adenosine, Finger hypoperfusion via by norepinephrine, Baseline hypoxic test
Procedure
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 13, 2026 · Synced Oct 21, 2026, 3:46 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Pharmacogenetics of Ace Inhibitor-Associated Angioedema

NCT01413542
View directory record Official record
Conditions
Hypertension, Diabetes Type 2
Interventions
Sitagliptin (DPP4 inhibitor), Substance P,, bradykinin, enalaprilat (ACE inhibitor), Glucagon-like peptide 1, brain natriuretic peptide
Drug
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 65 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Nov 4, 2015 · Synced Oct 21, 2026, 3:46 PM EDT
Completed Phase 4 Interventional Results available

The Effect of Linagliptin on Mitochondrial and Endothelial Function

NCT01969084
View directory record Official record
Conditions
Type II Diabetes Mellitus
Interventions
Linagliptin, Placebo, Microcirculation testing, Macrocirculation testing, MRI Scans
Drug · Other
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
30 Years to 70 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 18, 2016 · Synced Oct 21, 2026, 3:46 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Ischemia/Reperfusion Injury of Human Endothelium: Role of Glucose and Statins

NCT00995670
View directory record Official record
Conditions
Hyperglycemia
Interventions
5% dextrose, Vitamin C, Simvastatin, Sevoflurane
Drug
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
18 Years to 35 Years
Enrollment
59 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Mar 17, 2015 · Synced Oct 21, 2026, 3:46 PM 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 29, 2026 · Synced Oct 21, 2026, 3:46 PM EDT
Withdrawn Phase 4 Interventional

Ertugliflozin Versus Hydrochlorothiazide in Reducing Sympathetic Neural Overactivity in Patients With Hypertension and Recently-diagnosed Type 2 Diabetes.

NCT03640221
View directory record Official record
Conditions
Hypertension, Diabetes Mellitus, Type 2
Interventions
Ertugliflozin, Hydrochlorothiazide 12.5mg, Microneurography, SKNA recordings, Static Handgrip, Post-handgrip forearm vascular occlusion, Testing of the Arterial Baroreflex Function
Drug · Device · Other
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
35 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jan 14, 2020 · Synced Oct 21, 2026, 3:46 PM EDT
Not listed Not applicable Interventional

Comparison Study of Intraoperative Patient Warming Systems

NCT00670826
View directory record Official record
Conditions
Orthopedic Surgery, General Anesthesia
Interventions
vitalHEAT vH2 Temperature Management System, Arizant Healthcare Bair Hugger Temperature Management System
Device
Lead sponsor
Dynatherm Medical Inc.
Industry
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated May 2, 2008 · Synced Oct 21, 2026, 3:46 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Microvascular Function in Patients Undergoing 5-Fluorouracil Chemotherapy

NCT04042298
View directory record Official record
Conditions
Gastrointestinal Cancer, Head and Neck Cancer, Breast Cancer, Chemotherapy Effect, 5-Fluorouracil Toxicity
Interventions
Arterial blood pressure, Skin microcirculatory blood flow, Brachial artery blood flow, Venous blood draw
Other
Lead sponsor
Kansas State University
Other
Eligibility
21 Years and older
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
1
States / cities
Manhattan, Kansas
Source: ClinicalTrials.gov public record
Updated Sep 2, 2025 · Synced Oct 21, 2026, 3:46 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Nebivolol and Endothelial Regulation of Fibrinolysis (NERF)

NCT01595516
View directory record Official record
Conditions
Prehypertension, Hypertension
Interventions
Nebivolol, Metoprolol, Placebo, Bradykinin, Saline, Vitamin C
Drug · Other
Lead sponsor
University of Colorado, Boulder
Other
Eligibility
45 Years to 65 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2017
U.S. locations
1
States / cities
Boulder, Colorado
Source: ClinicalTrials.gov public record
Updated Jun 25, 2019 · Synced Oct 21, 2026, 3:46 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Endothelial Dysfunction After SCI

NCT07227727
View directory record Official record
Conditions
Spinal Cord Injuries, Endothelial Dysfunction
Interventions
Intra-arterial Infusion of Vasoactive Agents, Intra-arterial Vitamin C Infusion, Blood Sampling
Procedure
Lead sponsor
Craig Hospital
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Englewood, Colorado
Source: ClinicalTrials.gov public record
Updated Nov 14, 2025 · Synced Oct 21, 2026, 3:46 PM EDT
Completed Phase 2 Interventional

Dietary Nitrate and Nitrite to Increase Nitric Oxide in Patients With Coronary Artery Disease

NCT00069654
View directory record Official record
Conditions
Coronary Arteriosclerosis
Interventions
Forearm blood flow study, Brachial artery reactivity study, Treadmill exercise test
Procedure
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
22 Years and older
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2003
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 2, 2017 · Synced Oct 21, 2026, 3:46 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effect of Insulin on Endothelin-Dependent Vascular Tone in the Forearm Circulation

NCT00001624
View directory record Official record
Conditions
Hyperinsulinemia
Interventions
Insulin
Drug
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
Not listed
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1997 – 2000
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Oct 21, 2026, 3:46 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

MusculRA: The Effects of Rheumatoid Arthritis on Skeletal Muscle Biomechanics

NCT04226131
View directory record Official record
Conditions
Rheumatoid Arthritis, Healthy Controls
Interventions
Blood Draw, Disease Activity (DAS-28) Assessment, Skeletal Muscle Mitochondrial Respiratory Capacity, Muscle Biopsy, Body Composition, Cardiopulmonary Exercise Test (CPET), Strength Testing, Questionnaires, Skeletal Muscle Biomechanical Property Assessment
Other
Lead sponsor
Duke University
Other
Eligibility
25 Years to 75 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 13, 2023 · Synced Oct 21, 2026, 3:46 PM EDT
Not listed Not applicable Interventional

BFR DISTRAD: Blood Flow Restricted Training During Rehabilitation Following Distal Radius Fracture Repair

NCT02482727
View directory record Official record
Conditions
Distal Radius Fracture, Rehabilitation
Interventions
occlusion training with tourniquet (DELFI PTS ii portable tourniquet system)
Device
Lead sponsor
Brooke Army Medical Center
Federal
Eligibility
18 Years to 65 Years
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2015
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Feb 23, 2017 · Synced Oct 21, 2026, 3:46 PM EDT
Not listed No phase listed Observational

Predictors of Upper Airway Function and Sleep-disordered Breathing in the Critically Ill

NCT02112604
View directory record Official record
Conditions
Critically Ill, Obstructive Sleep Apnea
Interventions
Ventilator, Alice PDx, Pulmonary function test, Muscle strength tests, Grip strength measurement, Sedatives and muscle relaxants given in the ICU
Device · Other · Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 17, 2016 · Synced Oct 21, 2026, 3:46 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Assessment of Vascular Endothelial Function in Postural Tachycardia Syndrome

NCT01308099
View directory record Official record
Conditions
Postural Tachycardia Syndrome
Interventions
Blood Pressure and Blood Flow
Device
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 60 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2017
U.S. locations
2
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 18, 2017 · Synced Oct 21, 2026, 3:46 PM EDT
Completed Not applicable Interventional

Efficacy of Prostatic Artery Embolization (PAE) in Patients With Severe Benign Prostatic Hyperplasia (BPH)

NCT02167919
View directory record Official record
Conditions
Benign Prostatic Hyperplasia
Interventions
Microspheres
Device
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
40 Years and older · Male only
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 14, 2017 · Synced Oct 21, 2026, 3:46 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Evaluation of Sports Supplements on Blood Flow

NCT04278053
View directory record Official record
Conditions
Determine the Effects of Nitrosigine and Citrulline-malate on Flow-mediated Dilation Among Young Adults
Interventions
inositol-stabilized arginine silicate
Dietary Supplement
Lead sponsor
University of Arkansas, Fayetteville
Other
Eligibility
18 Years to 29 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Fayetteville, Arkansas
Source: ClinicalTrials.gov public record
Updated May 24, 2022 · Synced Oct 21, 2026, 3:46 PM EDT
Completed Phase 1 Interventional

Nitrite Infusion Studies

NCT00102271
View directory record Official record
Conditions
Healthy
Interventions
Oxypurinol, Sodium Nitrite
Drug
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
21 Years to 40 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2011
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 2, 2017 · Synced Oct 21, 2026, 3:46 PM EDT
Withdrawn Not applicable Interventional

Brachial Artery t-PA Release in Heart Transplant Recipients

NCT00780637
View directory record Official record
Conditions
Heart Transplantation
Interventions
Bradykinin
Drug
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jul 15, 2016 · Synced Oct 21, 2026, 3:46 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Comparative Evaluation of Sustained Acoustic Medicine Device on Circulation

NCT06510062
View directory record Official record
Conditions
Measurement of Circulation on Anatomical Locations of the Body
Interventions
Sustained Acoustic Medicine, 2.5% Diclofenac Patches
Device · Drug
Lead sponsor
ZetrOZ, Inc.
Industry
Eligibility
18 Years to 50 Years
Enrollment
67 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Trumbull, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 6, 2025 · Synced Oct 21, 2026, 3:46 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Role of Endothelial Function in SCI CVD Risk

NCT06443151
View directory record Official record
Conditions
Spinal Cord Injuries, Cardiovascular Diseases, Endothelial Dysfunction
Interventions
Brachial intra-arterial infusion of vasoactive and antioxidant drugs (acetylcholine, nitroprusside, ascorbic acid), venous occlusion plethysmography, Acetylcholine, Sodium Nitroprusside, Ascorbic acid, venous phlebotomy
Procedure · Drug
Lead sponsor
Craig Hospital
Other
Eligibility
18 Years to 89 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Englewood, Colorado
Source: ClinicalTrials.gov public record
Updated Aug 20, 2024 · Synced Oct 21, 2026, 3:46 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Hot Flashes and Neurovascular Function in Women

NCT05193968
View directory record Official record
Conditions
Hot Flashes, Menopause, Vasomotor System; Labile
Interventions
Sympathoexcitatory stressors, Sodium Nitroprusside, Acetylcholine, Terbutaline, Norepinephrine
Other · Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
40 Years to 60 Years · Female only
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 12, 2026 · Synced Oct 21, 2026, 3:46 PM EDT
Withdrawn Phase 4 Interventional Accepts healthy volunteers

Neural Mechanism of Aldosterone-induced Insulin Resistance

NCT02102243
View directory record Official record
Conditions
Hypertension
Interventions
DEFINITY® infusion, Human Recombinant Regular Insulin infusion, Dextrose infusion, Flow mediated vasodilation, Endothelial cell collection, Microvascular perfusion assessment using Definity, Microneurography
Drug · Procedure
Lead sponsor
Wanpen Vongpatanasin
Other
Eligibility
18 Years to 75 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2025
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Mar 15, 2023 · Synced Oct 21, 2026, 3:46 PM EDT