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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Stiffness Clear all
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 Jun 10, 2026, 3:47 PM EDT
Not listed Not applicable Interventional

Vitamin K to Slow Progression of Cardiovascular Disease Risk in Hemodialysis Patients

NCT03311321
View directory record Official record
Conditions
Cardiovascular Diseases, Chronic Kidney Disease Stage 3, Chronic Kidney Disease Stage 4, Chronic Kidney Disease Stage 5, Vitamin K Deficiency, Hemodialysis
Interventions
Vitamin K2 (menaquinone-7; 360-mcg/d), Placebo-Control
Dietary Supplement
Lead sponsor
Augusta University
Other
Eligibility
18 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
1
States / cities
Augusta, Georgia
Source: ClinicalTrials.gov public record
Updated Nov 19, 2019 · Synced Jun 10, 2026, 3:47 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Nitric Oxide Bioavailability in Chronic Obstructive Pulmonary Disease (COPD)

NCT01398943
View directory record Official record
Conditions
Pulmonary Disease, Chronic Obstructive
Interventions
Tetrahydrobiopterin (BH4), Antioxidant Cocktail
Drug · Dietary Supplement
Lead sponsor
Augusta University
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2015
U.S. locations
1
States / cities
Augusta, Georgia
Source: ClinicalTrials.gov public record
Updated Dec 10, 2017 · Synced Jun 10, 2026, 3:47 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 Jun 10, 2026, 3:47 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Natural History Study of CADASIL

NCT05072483
View directory record Official record
Conditions
Cardiovascular Disease, Arterial Stiffness, Germline Mutation in the NOTCH 3 Gene, Pathogenesis of CADASIL, Clinical Phenotype of CADASIL
Interventions
MRI
Device
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years to 100 Years
Enrollment
155 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2041
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated May 25, 2026 · Synced Jun 10, 2026, 3:47 PM EDT
Completed Not applicable Interventional Results available

Dietary Prevention of Heart Failure in Hypertensive Metabolic Syndrome

NCT03170375
View directory record Official record
Conditions
Heart Failure
Interventions
Performance of WHEELS-I in promoting DASH/SRD adoption
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
45 Years and older
Enrollment
71 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Sep 9, 2025 · Synced Jun 10, 2026, 3:47 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Acute Sleep Loss and Arterial Stiffness

NCT05940467
View directory record Official record
Conditions
Arterial Stiffness
Interventions
Sleep Loss
Other
Lead sponsor
University of Pittsburgh
Other
Eligibility
20 Years to 29 Years
Enrollment
3 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 3, 2024 · Synced Jun 10, 2026, 3:47 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Effect of ACE-inhibitors on Aortic Stiffness in Elderly Patients With Chronic Kidney Disease

NCT00874432
View directory record Official record
Conditions
Cardiovascular Disease, Chronic Kidney Disease
Interventions
angiotensin converting enzyme inhibitor, lisinopril
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
60 Years to 89 Years
Enrollment
43 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 26, 2020 · Synced Jun 10, 2026, 3:47 PM EDT
Not listed Not applicable Interventional

The Effect of an Individualized Impairment-based, Orthopedic Physical Therapy Intervention (IOI), on Muscle Stiffness, Pelvic Floor Function, and Pain in Women With Chronic Pelvic Pain

NCT04851730
View directory record Official record
Conditions
Pelvic Pain, Chronic Pain, Muscle Tightness
Interventions
Orthopedic Physical Therapy Intervention, Dry Needling
Procedure · Device
Lead sponsor
Texas Woman's University
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Lee's Summit, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 19, 2021 · Synced Jun 10, 2026, 3:47 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Vitamin D and Arterial Stiffness in Elderly

NCT03649802
View directory record Official record
Conditions
Vitamin D Deficiency, Arterial Stiffness
Interventions
Low dose vitamin D3, High dose vitamin D3
Dietary Supplement
Lead sponsor
Texas Tech University Health Sciences Center
Other
Eligibility
65 Years to 89 Years
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Lubbock, Texas
Source: ClinicalTrials.gov public record
Updated Mar 20, 2022 · Synced Jun 10, 2026, 3:47 PM EDT
Completed Phase 2 Interventional

Tart Cherry, Metabolic Syndrome, and Cardiovascular Risk

NCT02154100
View directory record Official record
Conditions
Metabolic Syndrome, Cardiovascular Diseases, Diabetes
Interventions
Tart Cherry, Placebo
Dietary Supplement
Lead sponsor
Florida State University
Other
Eligibility
20 Years to 60 Years
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Tallahassee, Florida
Source: ClinicalTrials.gov public record
Updated Dec 7, 2016 · Synced Jun 10, 2026, 3:47 PM EDT
Recruiting Not applicable Interventional

Wild Blueberries for Gut, Brain, and Cardiometabolic Health in Prediabetes

NCT06735651
View directory record Official record
Conditions
Prediabetes (Insulin Resistance, Impaired Glucose Tolerance), Female, Adult, Endothelial Function (Reactive Hyperemia), Arterial Stiffness, Cognition, Oxidative Stress, Gut Microbiota, Overweight, Inflammation, Microvascular Function, Body Composition
Interventions
Wild Blueberry, Placebo
Dietary Supplement
Lead sponsor
Georgia State University
Other
Eligibility
20 Years to 65 Years · Female only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Mar 24, 2026 · Synced Jun 10, 2026, 3:47 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Effects of Dry Needling the Calf Muscles on Biomechanics and Muscle Function in Individuals With Restricted Dorsiflexion

NCT07474948
View directory record Official record
Conditions
Ankle Stiffness
Interventions
Dry needling
Procedure
Lead sponsor
University of Dayton
Other
Eligibility
18 Years to 40 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Dayton, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 15, 2026 · Synced Jun 10, 2026, 3:47 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

The Effects of Anthracycline-based Chemotherapy on Peripheral Vascular Function

NCT03062878
View directory record Official record
Conditions
Breast Cancer, Lymphoma, Chemotherapy Effect
Interventions
Arterial blood pressure, Vascular Ultrasound, Venous blood sample, Skin microcirculatory blood flow
Other
Lead sponsor
Carl Ade, M.S., Ph.D.
Other
Eligibility
21 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Manhattan, Kansas
Source: ClinicalTrials.gov public record
Updated Sep 1, 2025 · Synced Jun 10, 2026, 3:47 PM EDT
Completed Not applicable Interventional

Exploring Advanced Imaging Techniques to Characterize Botulinum Toxin Diffusion in Human Muscle

NCT01412008
View directory record Official record
Conditions
Stroke, Muscle Spasticity
Interventions
Botox (botulinum toxin)
Drug
Lead sponsor
New York Presbyterian Hospital
Other
Eligibility
18 Years to 80 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 30, 2013 · Synced Jun 10, 2026, 3:47 PM EDT
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

NRM on Vascular Perfusion in Healthy Adults

NCT06345443
View directory record Official record
Conditions
Vascular Stiffness
Interventions
Nicotinamide Riboside Malate, Placebo
Dietary Supplement · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
35 Years to 70 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 17, 2026 · Synced Jun 10, 2026, 3:47 PM EDT
Recruiting Not applicable Interventional

Hemodynamics After Resistance Training

NCT07022340
View directory record Official record
Conditions
Perimenopause
Interventions
Resistance Training Intervention
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
40 Years to 60 Years · Female only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 10, 2025 · Synced Jun 10, 2026, 3:47 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Cardiovascular, Cerebrovascular, and Cognitive Function in Spinal Cord Injury

NCT02122991
View directory record Official record
Conditions
Spinal Cord Injury
Interventions
Not listed
Lead sponsor
James J. Peters Veterans Affairs Medical Center
Federal
Eligibility
30 Years to 64 Years
Enrollment
61 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2017
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Feb 18, 2018 · Synced Jun 10, 2026, 3:47 PM EDT
Completed No phase listed Observational

CADASIL Disease Discovery

NCT02821780
View directory record Official record
Conditions
Germline Mutation in the NOTCH 3 Gene, Cardiovascular Disease, Arterial Stiffness, Pathogenesis of CADASIL, Clinical Phenotype of CADASIL
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years to 100 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2022
U.S. locations
2
States / cities
Bethesda, Maryland • Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 13, 2026 · Synced Jun 10, 2026, 3:47 PM EDT
Not listed No phase listed Observational

Microfluidic-based Tactile Sensor in Cardiac Rehabilitation

NCT04812600
View directory record Official record
Conditions
Cardiovascular Diseases, Vascular Stiffness, Endothelial Dysfunction
Interventions
Not listed
Lead sponsor
Zhili hao
Other
Eligibility
45 Years to 70 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Mar 22, 2021 · Synced Jun 10, 2026, 3:47 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Acute Effects of Autoregulated and Non-autoregulated Blood Flow Restrictive Exercise on Indices of Arterial Stiffness

NCT05719090
View directory record Official record
Conditions
Arterial Stiffness, Healthy Lifestyle
Interventions
Delfi Personal Tourniquet Systems
Device
Lead sponsor
Salisbury University
Other
Eligibility
18 Years to 40 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Salisbury, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 7, 2023 · Synced Jun 10, 2026, 3:47 PM EDT
Terminated Phase 2 Interventional Results available

Acute Effects of Inhaled Treprostinil in Fontan Patients

NCT02769624
View directory record Official record
Conditions
Congenital Heart Disease
Interventions
Treprostinil, Placebo
Drug
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 28, 2020 · Synced Jun 10, 2026, 3:47 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

JDS-HF3.0 Supplementation on Menopause Related Quality of Life Outcomes in Postmenopausal Women

NCT07238478
View directory record Official record
Conditions
Joint Discomfort, Joint Pain, Stiffness, Function, Joint Pain, Hot Flashes, Hot Flash, Night Sweats, Vasomotor Symptoms
Interventions
JDS-HF3.0, Placebo
Dietary Supplement · Other
Lead sponsor
Bonafide Health
Industry
Eligibility
50 Years to 70 Years · Female only
Enrollment
250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Harrison, New York
Source: ClinicalTrials.gov public record
Updated Nov 19, 2025 · Synced Jun 10, 2026, 3:47 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Effects of Added Sugar Intake on Brain Blood Flow and Hippocampal Function in Midlife Adults

NCT05211726
View directory record Official record
Conditions
Aging, Healthy Diet
Interventions
Low Added Sugar Diet, High Added Sugar Diet
Other
Lead sponsor
University of Delaware
Other
Eligibility
50 Years to 64 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Newark, Delaware
Source: ClinicalTrials.gov public record
Updated Jun 11, 2025 · Synced Jun 10, 2026, 3:47 PM EDT