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Showing 1–16 of 16 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Microvasculature Clear all
Recruiting Phase 2 Interventional Accepts healthy volunteers

Relationship Between Abnormal Myocardial Perfusion and Diastolic Dysfunction in Sickle Cell Disease Using PET

NCT05583721
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
[13N]NH3, Lexiscan, Positron emission tomography
Drug · Diagnostic Test
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
18 Years to 21 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2028
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Jul 21, 2026, 10:09 PM EDT
Recruiting No phase listed Observational

Quantitative Microvasculature Imaging for Breast Cancer Detection and Monitoring

NCT04799535
View directory record Official record
Conditions
Breast Carcinoma, Breast Neoplasm
Interventions
Ultrasound
Procedure
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
550 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2027
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 2, 2026 · Synced Jul 21, 2026, 10:09 PM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Estrogen and Microvascular Function

NCT06043310
View directory record Official record
Conditions
Estrogen, Cardiovascular Diseases, Microvasculature, Oral Contraceptive Use
Interventions
Nω-nitro-L-arginine methyl ester (L-NAME), Acetylcholine, Sodium Nitroprusside
Drug
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2031
U.S. locations
1
States / cities
Wauwatosa, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jul 3, 2025 · Synced Jul 21, 2026, 10:09 PM EDT
Completed Not applicable Interventional

Yoga Training and Retinal Vasculature With Parkinson's Disease

NCT06194227
View directory record Official record
Conditions
Cognitive Change
Interventions
High-speed, Cognitive Challenge Yoga, Traditional Yoga
Behavioral
Lead sponsor
University of Miami
Other
Eligibility
50 Years to 90 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
Coral Gables, Florida
Source: ClinicalTrials.gov public record
Updated Jan 2, 2025 · Synced Jul 21, 2026, 10:09 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Local Antioxidant Therapy Vasoconstriction Effects in Different Races

NCT03684213
View directory record Official record
Conditions
Cardiovascular Diseases, Cardiovascular Risk Factor, Vasoconstriction
Interventions
Control (Norepinephrine), Norepinephrine + Ascorbic Acid, Norepinephrine + L-NAME, Norepinephrine + L-NAME + Ascorbic Acid
Drug
Lead sponsor
The University of Texas at Arlington
Other
Eligibility
18 Years to 35 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2024
U.S. locations
1
States / cities
Arlington, Texas
Source: ClinicalTrials.gov public record
Updated Jun 10, 2024 · Synced Jul 21, 2026, 10:09 PM EDT
Recruiting No phase listed Observational

Assessing Changes in Myocardial Tissue and Blood in Patients With Advanced Heart Disease

NCT01099982
View directory record Official record
Conditions
Congestive Heart Failure
Interventions
Not listed
Lead sponsor
University of Utah
Other
Eligibility
13 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2028
U.S. locations
3
States / cities
Murray, Utah • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jul 14, 2025 · Synced Jul 21, 2026, 10:09 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Yoga Training and Retinal Vasculature

NCT06099405
View directory record Official record
Conditions
Cognitive Change
Interventions
High-speed, Cognitive Challenge Yoga, Traditional yoga
Behavioral
Lead sponsor
University of Miami
Other
Eligibility
60 Years to 90 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Coral Gables, Florida
Source: ClinicalTrials.gov public record
Updated May 29, 2025 · Synced Jul 21, 2026, 10:09 PM EDT
Not listed Early Phase 1 Interventional

Effects of Empagliflozin on Cardiac Microvasculature and Insulin Sensitivity in Subjects With Type 2 Diabetes

NCT04203927
View directory record Official record
Conditions
Type2 Diabetes, Insulin Sensitivity
Interventions
Empagliflozin 25 MG
Drug
Lead sponsor
University of Virginia
Other
Eligibility
18 Years to 60 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Feb 9, 2022 · Synced Jul 21, 2026, 10:09 PM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Intrarenal Microvasculature in ADPKD

NCT05288998
View directory record Official record
Conditions
Autosomal Dominant Polycystic Kidney Disease
Interventions
Not listed
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 40 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 15, 2026 · Synced Jul 21, 2026, 10:09 PM EDT
Enrolling by invitation No phase listed Observational

Effects of Immune Checkpoint Inhibitors on Coronary Microvasculature

NCT06332131
View directory record Official record
Conditions
Coronary Microvascular Dysfunction, Cardiotoxicity, Breast Cancer, Lung Cancer (NSCLC)
Interventions
Not listed
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 8, 2026 · Synced Jul 21, 2026, 10:09 PM EDT
Not yet recruiting Phase 2 Interventional

Palmitic Acid and Human Microvascular Function

NCT06683534
View directory record Official record
Conditions
Microvascular Dysfunction, Microvasculature, Cardiovascular Diseases, Cardiovascular Diseases (CVD), Microvascular Health, Obesity and Overweight
Interventions
Quercetin (dietary supplement), Placebo
Dietary Supplement · Drug
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Years to 40 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
Wauwatosa, Wisconsin
Source: ClinicalTrials.gov public record
Updated Apr 28, 2026 · Synced Jul 21, 2026, 10:09 PM EDT
Not yet recruiting Not applicable Interventional

MoDi Twin Placental Imaging

NCT07667647
View directory record Official record
Conditions
Monochorionic Diamniotic Placenta, Monochorial Monoamniotic Placenta, Monochorionic Twins, Ultrasound Doppler, Ultrasound, Pregnancy, Twin Pregnancy, Monochorionic, Twin Twin Transfusion Syndrome
Interventions
Verasonics Vantage 256 Ultrasound
Device
Lead sponsor
Carilion Clinic
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Roanoke, Virginia
Source: ClinicalTrials.gov public record
Updated Jun 24, 2026 · Synced Jul 21, 2026, 10:09 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Circuit Training and Retina

NCT05714813
View directory record Official record
Conditions
Cognitive Impairment, Progressive, Cerebral Small Vessel Diseases
Interventions
High-Speed Circuit Resistance Training, Lecture on Diet, Exercise and Cognition
Behavioral
Lead sponsor
University of Miami
Other
Eligibility
65 Years to 90 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
2
States / cities
Coral Gables, Florida
Source: ClinicalTrials.gov public record
Updated Feb 5, 2023 · Synced Jul 21, 2026, 10:09 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Pilot Clinical Evaluation of Approved Contact Lenses

NCT02540122
View directory record Official record
Conditions
Vision Disorders
Interventions
Marketed Contact Lens 1, Marketed Contact Lens 2, Marketed Contact Lens 3, Marketed Contact Lens 4
Device
Lead sponsor
Johnson & Johnson Vision Care, Inc.
Industry
Eligibility
18 Years to 70 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jun 19, 2017 · Synced Jul 21, 2026, 10:09 PM EDT
Not yet recruiting No phase listed Observational

Microvasculature Ultrasound Super-resolution in Transplant Delayed Graft Function

NCT07645599
View directory record Official record
Conditions
End Stage Chronic Renal Failure, Renal Transplant, Microvascular Changes, Microvascular Circulation
Interventions
Ultrasound contrast agent (Contrast-enhanced ultrasound), Optison (Perflutren Protein-Type A Microspheres Injectable Suspension), Lumason® contrast agent, DEFINITY®
Diagnostic Test · Drug
Lead sponsor
Roderick Tan
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 11, 2026 · Synced Jul 21, 2026, 10:09 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Retinal Imaging in Neurodegenerative Disease

NCT03233646
View directory record Official record
Conditions
Alzheimer's Disease, Mild Cognitive Impairment, Parkinson's Disease, Multiple Sclerosis, Huntington Disease, Lewy Body Dementia, Frontotemporal Dementia, Amyotrophic Lateral Sclerosis (ALS), APOE-4 Positive, Traumatic Brain Injury, Concussion, Post-Traumatic Stress Disorder, Down Syndrome, Neuro-Degenerative Disease, Normal Cognition
Interventions
Retinal and Choroidal Imaging
Device
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
2,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2026
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 3, 2026 · Synced Jul 21, 2026, 10:09 PM EDT