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Showing 1–24 of 155 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Stiffness, Arterial Clear all
Completed No phase listed Observational Accepts healthy volunteers

Impact of Elastin Mediated Vascular Stiffness on End Organs

NCT02840448
View directory record Official record
Conditions
Williams Syndrome, Supravalvular Aortic Stenosis, Cardiovascular Disease
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
3 Years to 85 Years
Enrollment
159 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2024
U.S. locations
2
States / cities
Bethesda, Maryland • St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 16, 2026 · Synced Jul 22, 2026, 11:11 PM EDT
Completed Not applicable Interventional

Effect of Transcutaneous Vagal Stimulation (TVS) on Endothelial Function and Arterial Stiffness in HFrEF

NCT03380156
View directory record Official record
Conditions
Heart Failure With Reduced Ejection Fraction, Endothelial Dysfunction
Interventions
TVS, Sham TVS
Device
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 80 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Jan 13, 2021 · Synced Jul 22, 2026, 11:11 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Vitamin K and Glucose Metabolism in Children at Risk for Diabetes (Vita-K 'n' Kids Study)

NCT01972113
View directory record Official record
Conditions
Obesity, Insulin Resistance, Insulin Sensitivity, Prediabetes, Dyslipidemia, Diabetes
Interventions
Placebo-Control, Low-Dose Vitamin K2 (menaquinone-7; 45 mcg/d), High-Dose Vitamin K2 (menaquinone-7; 90 mcg/d)
Dietary Supplement
Lead sponsor
Augusta University
Other
Eligibility
8 Years to 17 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2020
U.S. locations
1
States / cities
Augusta, Georgia
Source: ClinicalTrials.gov public record
Updated Nov 18, 2019 · Synced Jul 22, 2026, 11:11 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

L-citrulline Supplementation & Cold Exposure

NCT01462591
View directory record Official record
Conditions
Hypertension
Interventions
L-citrulline
Dietary Supplement
Lead sponsor
Florida State University
Other
Eligibility
18 Years to 35 Years · Male only
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Tallahassee, Florida
Source: ClinicalTrials.gov public record
Updated Aug 4, 2014 · Synced Jul 22, 2026, 11:11 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Endothelial Function, Arterial Stiffness and Components

NCT01439217
View directory record Official record
Conditions
Acute Lymphoblastic Leukemia
Interventions
Not listed
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Other
Eligibility
8 Years to 28 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
2
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 16, 2013 · Synced Jul 22, 2026, 11:11 PM EDT
Terminated Phase 2 Interventional Accepts healthy volunteers Results available

Inflammation Inhibition in Prediabetic Humans

NCT01977417
View directory record Official record
Conditions
Prediabetes, Obese
Interventions
Salsalate, Placebo
Drug
Lead sponsor
Gary L. Pierce
Other
Eligibility
18 Years to 79 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2021
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Sep 10, 2023 · Synced Jul 22, 2026, 11:11 PM 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 Jul 22, 2026, 11:11 PM EDT
Completed Not applicable Interventional

Strive Cardio for Endometrial Cancer Survivors

NCT06534008
View directory record Official record
Conditions
Endometrial Cancer, Cardiovascular Diseases
Interventions
12-week home-based exercise intervention
Behavioral
Lead sponsor
Jess S. Gorzelitz
Other
Eligibility
18 Years and older · Female only
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Nov 19, 2025 · Synced Jul 22, 2026, 11:11 PM EDT
Completed No phase listed Observational

Impact of Arterial Stiffness and Central Aortic Blood Pressure on Kidney Transplant Outcomes

NCT02000869
View directory record Official record
Conditions
Kidney Transplantation
Interventions
Not listed
Lead sponsor
Louisiana State University Health Sciences Center Shreveport
Other
Eligibility
18 Years to 80 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Shreveport, Louisiana
Source: ClinicalTrials.gov public record
Updated Dec 13, 2021 · Synced Jul 22, 2026, 11:11 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Influence of Beetroot Juice on Racial Disparities in Vascular Health

NCT05132556
View directory record Official record
Conditions
Blood Pressure, Racial Disparities, Cardiovascular Risk Factor
Interventions
Acute Beetroot Juice
Other
Lead sponsor
Georgia Southern University
Other
Eligibility
18 Years to 39 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Savannah, Georgia
Source: ClinicalTrials.gov public record
Updated Oct 4, 2023 · Synced Jul 22, 2026, 11:11 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Endothelin Receptor Function and Acute Stress

NCT02116335
View directory record Official record
Conditions
Hypertension
Interventions
Bosentan, Placebo
Drug
Lead sponsor
Augusta University
Other
Eligibility
18 Years to 50 Years
Enrollment
320 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2026
U.S. locations
1
States / cities
Augusta, Georgia
Source: ClinicalTrials.gov public record
Updated Jan 27, 2025 · Synced Jul 22, 2026, 11:11 PM EDT
Active, not recruiting Phase 1Phase 2 Interventional Accepts healthy volunteers

Fisetin to Improve Vascular Function in Older Adults

NCT06133634
View directory record Official record
Conditions
Aging, Endothelial Dysfunction, Arterial Stiffness
Interventions
Fisetin, Placebo
Dietary Supplement · Other
Lead sponsor
University of Colorado, Boulder
Other
Eligibility
65 Years and older
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Boulder, Colorado
Source: ClinicalTrials.gov public record
Updated Nov 11, 2025 · Synced Jul 22, 2026, 11:11 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Minimum Time Effect of Fish Oil on Arterial Stiffness

NCT06981364
View directory record Official record
Conditions
Arterial Stiffness
Interventions
Fish Oil
Dietary Supplement
Lead sponsor
Salisbury University
Other
Eligibility
18 Years to 30 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Salisbury, Maryland
Source: ClinicalTrials.gov public record
Updated May 19, 2025 · Synced Jul 22, 2026, 11:11 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Vitamin D, Insulin Sensitivity, and Vascular Associations in Adolescents

NCT01041365
View directory record Official record
Conditions
Insulin Sensitivity, Flow-mediated Dilation, Arterial Stiffness
Interventions
Not listed
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
14 Years to 18 Years · Female only
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2013
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jan 13, 2014 · Synced Jul 22, 2026, 11:11 PM EDT
Not listed Phase 2 Interventional Accepts healthy volunteers

Acetate and Age-associated Arterial Dysfunction

NCT05424263
View directory record Official record
Conditions
Aging, Vascular Stiffness, Vascular Dilation
Interventions
Calcium Acetate Oral Solution, Calcium Carbonate Oral Suspension
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
50 Years and older
Enrollment
66 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Mar 14, 2024 · Synced Jul 22, 2026, 11:11 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Vascular Function in Adults With Down Syndrome

NCT07630207
View directory record Official record
Conditions
Down Syndrome (Trisomy 21)
Interventions
Not listed
Lead sponsor
University of Nevada, Las Vegas
Other
Eligibility
18 Years to 35 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Jul 22, 2026, 11:11 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Effect of Resistance Training on Tobacco-Related Cardiovascular Disease Risk

NCT01705951
View directory record Official record
Conditions
Smoking, Cardiovascular Disease Risk
Interventions
Resistance Training (RT), Nicotine Replacement Therapy (NRT)
Other · Biological
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 35 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Oct 11, 2012 · Synced Jul 22, 2026, 11:11 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Longitudinal Assessment of Exercise Capacity and Vascular Function in Patients With CF

NCT03338595
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Not listed
Lead sponsor
Augusta University
Other
Eligibility
7 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2020
U.S. locations
1
States / cities
Augusta, Georgia
Source: ClinicalTrials.gov public record
Updated Jan 18, 2021 · Synced Jul 22, 2026, 11:11 PM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

The Influences of Blood Flow Restriction on Leg Press

NCT07052227
View directory record Official record
Conditions
Delfi Cuff, Fitcuff, Placebo - Control
Interventions
Delfi blood flow restriction cuff, Fitcuffs, Control
Device · Other
Lead sponsor
Salisbury University
Other
Eligibility
18 Years to 40 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Salisbury, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 3, 2025 · Synced Jul 22, 2026, 11:11 PM EDT
Terminated Not applicable Interventional

Arterial Stiffness and Atrial Fibrillation

NCT04160663
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Carotid Ultrasound
Diagnostic Test
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 95 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 16, 2023 · Synced Jul 22, 2026, 11:11 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Determinants of Changes in Arterial Load Following Exercise

NCT05820243
View directory record Official record
Conditions
Post-Exercise Hypotension
Interventions
Moderate Intensity Aerobic Exercise
Other
Lead sponsor
University of Delaware
Other
Eligibility
18 Years to 45 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Newark, Delaware
Source: ClinicalTrials.gov public record
Updated Nov 27, 2023 · Synced Jul 22, 2026, 11:11 PM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Safety Study to Lower the Risk of Heart Failure is Also Effective in Reducing Stiffness of the Arteries

NCT00829296
View directory record Official record
Conditions
Hypertension, Diabetes
Interventions
nebivolol, Metoprolol
Drug
Lead sponsor
University of Chicago
Other
Eligibility
50 Years to 85 Years
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2013
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 4, 2016 · Synced Jul 22, 2026, 11:11 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effects of Inorganic Nitrate and Intensity of Exercise on Cardiovascular Health in Post-Menopausal Females

NCT05221905
View directory record Official record
Conditions
Vascular Dilation, Arterial Stiffness
Interventions
BEET IT - Concentrate Beet root juice, BEET IT - Concentrate Beet root juice (nitrate depleted)
Drug
Lead sponsor
University of Virginia
Other
Eligibility
45 Years to 75 Years · Female only
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Nov 29, 2023 · Synced Jul 22, 2026, 11:11 PM EDT
Completed Phase 3 Interventional Results available

A Study of the Effect of Tocilizumab on Markers of Atherogenic Risk in Patients With Moderate to Severe Rheumatoid Arthritis

NCT00535782
View directory record Official record
Conditions
Rheumatoid Arthritis
Interventions
Tocilizumab, Placebo, Methotrexate
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years to 75 Years
Enrollment
132 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
26
States / cities
Anniston, Alabama • Huntsville, Alabama • Scottsdale, Arizona + 22 more
Source: ClinicalTrials.gov public record
Updated Jul 25, 2017 · Synced Jul 22, 2026, 11:11 PM EDT