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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Vascular Reactivity Clear all
Completed Phase 4 Interventional Accepts healthy volunteers

Effect of Pioglitazone on Oxidative Load, Inflammatory End-Points and Vascular Reactivity in Obese Non-Diabetic Patients: A Dose Ranging Study

NCT01161394
View directory record Official record
Conditions
Inflammation
Interventions
Pioglitazone 15mg, pioglitazone 30mg, placebo
Drug
Lead sponsor
University at Buffalo
Other
Eligibility
20 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Ends 2003
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Jan 26, 2022 · Synced Sep 25, 2026, 2:50 AM EDT
Completed No phase listed Observational

Assessing Cerebrovascular Reactivity Based on Cerebral Oximetry: a Pilot Study

NCT01483495
View directory record Official record
Conditions
Hypoxia-Ischemia, Brain, Signs and Symptoms
Interventions
Diffuse optical spectroscopy
Device
Lead sponsor
University of California, Irvine
Other
Eligibility
20 Years and older
Enrollment
78 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011
U.S. locations
1
States / cities
Irvine, California
Source: ClinicalTrials.gov public record
Updated Oct 31, 2022 · Synced Sep 25, 2026, 2:50 AM EDT
Recruiting Phase 2 Interventional

Evaluate the Effectiveness and Safety of BBD-1 Multi-target Immune Enhancement Targeting Agent in the Treatment of Hypersensitivity Reaction (IgA) Vasculitis

NCT07595367
View directory record Official record
Conditions
Allergic Reaction (IgA) Vasculitis
Interventions
BBD-1 Multi target Immune Enhancement Targeting Agent
Drug
Lead sponsor
Qifeng Zhang
Industry
Eligibility
Not listed
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 10, 2026 · Synced Sep 25, 2026, 2:50 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

The Effects of Dietary Erythritol on Platelet Reactivity and Vascular Inflammation

NCT05967741
View directory record Official record
Conditions
Platelet Aggregation, Spontaneous, Vascular Thrombosis
Interventions
Erythritol, Aspartame
Other
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 70 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Sep 13, 2026 · Synced Sep 25, 2026, 2:50 AM EDT
Terminated No phase listed Observational

Microvascular Reactivity in Peripheral Artery Disease

NCT05063474
View directory record Official record
Conditions
Peripheral Artery Disease
Interventions
No Intervention-Clinical Assessments only
Diagnostic Test
Lead sponsor
Columbia University
Other
Eligibility
35 Years to 80 Years
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 29, 2024 · Synced Sep 25, 2026, 2:50 AM EDT
Not yet recruiting Not applicable Interventional

Noninvasive CA Monitoring Validation and Autonomic Modulation in Aneurysmal Subarachnoid Hemorrhage

NCT07577739
View directory record Official record
Conditions
Subarachnoid Hemorrhage, Aneurysmal, Delayed Cerebral Ischemia, Cerebral Vasospasm, Autonomic Nervous System Diseases
Interventions
Right-Sided Cervical Sympathetic Block at C6, Transcutaneous Auricular Vagal Nerve Stimulation (taVNS)
Procedure · Device
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated May 10, 2026 · Synced Sep 25, 2026, 2:50 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Quantification of Binding and Neutralizing Antibody Levels in COVID-19 Vaccinated Health Care Workers Over 1 Year

NCT04910971
View directory record Official record
Conditions
COVID-19 Vaccine, Corona Virus Infection, Vaccine Adverse Reaction, Vaccine Response, Inflammation, Thrombosis
Interventions
Not listed
Lead sponsor
LifeBridge Health
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 1, 2021 · Synced Sep 25, 2026, 2:50 AM EDT
Completed Phase 2Phase 3 Interventional Results available

Risk of Oxygen During Cardiac Surgery Trial

NCT02361944
View directory record Official record
Conditions
Cardiac Surgery
Interventions
Oxygen - normoxia, Oxygen - hyperoxia
Drug
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years and older
Enrollment
213 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 31, 2024 · Synced Sep 25, 2026, 2:50 AM EDT
Completed Not applicable Interventional

Evaluation of an Ayurvedic Herbal Compound Compared to Vitamins C+E and Placebo on Vascular Function in High-Risk Subjects

NCT07206901
View directory record Official record
Conditions
Coronary Artery Disease
Interventions
Maharishi Amrit Kalash, vitamin C + E, Inert Placebo Capsule
Dietary Supplement · Other
Lead sponsor
Maharishi International University
Other
Eligibility
55 Years to 90 Years
Enrollment
143 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2014
U.S. locations
1
States / cities
Fairfield, Iowa
Source: ClinicalTrials.gov public record
Updated Oct 2, 2025 · Synced Sep 25, 2026, 2:50 AM EDT
Completed Phase 1 Interventional

Effect of Cocoa Flavanols on Vascular Function

NCT00553774
View directory record Official record
Conditions
Coronary Artery Disease
Interventions
Cocoa Flavanols, Placebo
Dietary Supplement · Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 100 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Oct 26, 2016 · Synced Sep 25, 2026, 2:50 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, 2:50 AM EDT
Completed Not applicable Interventional

Effects of Almonds On Endothelial Function In Patients With Coronary Artery Disease

NCT01038362
View directory record Official record
Conditions
Coronary Artery Disease
Interventions
NCEP Step 1 diet plus Almonds, No Almonds
Other
Lead sponsor
Boston University
Other
Eligibility
21 Years to 80 Years
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 22, 2009 · Synced Sep 25, 2026, 2:50 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Cerebral Oxygen Metabolism in Children

NCT04157179
View directory record Official record
Conditions
Sickle Cell Disease, Cerebral Stroke
Interventions
Carbon Dioxide
Other
Lead sponsor
Washington University School of Medicine
Other
Eligibility
3 Years to 50 Years
Enrollment
350 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2027
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Sep 10, 2025 · Synced Sep 25, 2026, 2:50 AM EDT
Not listed No phase listed Observational

National Vaccine Adverse Event Reporting Survey and Etiology

NCT05095844
View directory record Official record
Conditions
COVID-19, Vaccine Adverse Reaction, Vaccine Reaction, Vaccine or Biological Substance, Unspecified Causing Adverse Effects in Therapeutic Use, Corona Virus Infection, Blood Clot, Thrombocytopenia, Neuritis, Vasculitis, Influenza, Guillain-Barré, GWAS, Genetic Sequencing
Interventions
vaccinated
Biological
Lead sponsor
Neuroganics LLC
Industry
Eligibility
5 Years to 99 Years
Enrollment
100,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Northglenn, Colorado
Source: ClinicalTrials.gov public record
Updated Mar 17, 2022 · Synced Sep 25, 2026, 2:50 AM EDT
Not listed Phase 2 Interventional Accepts healthy volunteers

Oral Versus Patch Hormonal Contraceptive Effects on Metabolism, Clotting, Inflammatory Factors and Vascular Reactivity

NCT00439972
View directory record Official record
Conditions
Contraception
Interventions
Ortho-Cyclen (R), Ortho Evra (R), extended use of Ortho Evra (R)
Drug
Lead sponsor
University of Washington
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2011
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Feb 13, 2011 · Synced Sep 25, 2026, 2:50 AM EDT
Not listed Not applicable Interventional

Plavix, Prasugrel and Drug Eluting Stents Pilot Trial

NCT01103843
View directory record Official record
Conditions
Coronary Artery Disease, Platelet Aggregation Inhibitors, PCI- Percutaneous Coronary Intervention
Interventions
Loading Dose Arm, Maintenance Dose Arm
Drug
Lead sponsor
St. Francis Hospital, New York
Other
Eligibility
21 Years to 75 Years
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Roslyn, New York
Source: ClinicalTrials.gov public record
Updated Apr 14, 2010 · Synced Sep 25, 2026, 2:50 AM EDT
Completed No phase listed Observational

Platelet Reactivity After Cessation of Clopid in the Setting of Coronary Stent Implantation I: PRACTICE I

NCT00684359
View directory record Official record
Conditions
Coronary Disease
Interventions
Not listed
Lead sponsor
Medstar Health Research Institute
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated May 30, 2010 · Synced Sep 25, 2026, 2:50 AM EDT
Recruiting No phase listed Observational

A Precision Medicine Approach to Identify Patients Undergoing Elective PCI at Risk of Peri-PCI Myocardial Infarction

NCT05332262
View directory record Official record
Conditions
Coronary Artery Disease
Interventions
Assessment of platelet reactivity, Troponin measurement
Diagnostic Test
Lead sponsor
University of Florida
Other
Eligibility
18 Years and older
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Jan 19, 2026 · Synced Sep 25, 2026, 2:50 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Apixaban + DAPT in Lowering Platelet Reactivity and Thrombin Generation

NCT03746782
View directory record Official record
Conditions
Acute Coronary Syndrome
Interventions
Flow Cytrometry; Thrombin Generation Assay
Diagnostic Test
Lead sponsor
CirQuest Labs, LLC
Other
Eligibility
18 Years to 74 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 22, 2020 · Synced Sep 25, 2026, 2:50 AM EDT
Completed Not applicable Interventional

Effects of Quinapril 40 mg With Alpha Lipoic Acid or Placebo on Diabetes and Hypertension

NCT00795262
View directory record Official record
Conditions
Diabetes, Hypertension
Interventions
Quinapril (Accupril) plus Alpha Lipoic Acid, accupril, placebo, accupril, alpha lipoic acid
Drug
Lead sponsor
InVasc Therapeutics, Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Tucker, Georgia
Source: ClinicalTrials.gov public record
Updated May 4, 2011 · Synced Sep 25, 2026, 2:50 AM EDT
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

The Effect of Respiratory Challenge on the BOLD Signal

NCT04258774
View directory record Official record
Conditions
Hypoxia, Brain, Hyperoxia, Hypercapnia, Hypocapnia
Interventions
Carbon Dioxide
Other
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2027
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jan 15, 2026 · Synced Sep 25, 2026, 2:50 AM EDT
Completed Not applicable Interventional

Pragmatic Randomized Trial for Arterial Catheters in the Critical Care Environment

NCT05411315
View directory record Official record
Conditions
Mechanical Ventilation Complication, Arterial Thrombosis, Limb Ischemia, Shock, Hypotension, Bloodstream Infection, Vasopressor Adverse Reaction, Renal Failure
Interventions
Restricted-use of arterial catheter, Standard-use of arterial catheter
Other
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
18 Years and older
Enrollment
700 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated Feb 25, 2024 · Synced Sep 25, 2026, 2:50 AM EDT
Recruiting Phase 4 Interventional

SGC Stimulation, Perioperative Vascular Reactivity, and Organ Injury in Cardiac Surgery

NCT05812755
View directory record Official record
Conditions
Endothelial Dysfunction, Vascular Diseases, Kidney Injury, Brain Disease, Vascular Inflammation
Interventions
Vericiguat, Placebo
Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
170 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2029
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 5, 2026 · Synced Sep 25, 2026, 2:50 AM EDT
Recruiting Not applicable Interventional

Personalizing Thromboprophylaxis for Patients With Peripheral Artery Disease

NCT07613840
View directory record Official record
Conditions
Peripheral Arterial Disease (PAD), Amputation, Thrombosis, Thrombosis (Stent Thrombosis), Platelet Aggregation Inhibitors, Thromboelastography (TEG), PRU(Platelet Reactivity Unit)
Interventions
Aspirin, Clopidogrel, Ticagrelor, Rivaroxaban, Thromboelastography with Platelet Mapping
Drug · Device
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
484 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
2
States / cities
Boston, Massachusetts • Salem, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 10, 2026 · Synced Sep 25, 2026, 2:50 AM EDT