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ClinicalTrials.gov 21 recruiting now early-phase tilt

Endothelial Dysfunction: early-phase trial registry

21 of 46 indexed Endothelial Dysfunction trials are currently recruiting, with more weight in Phase 1-2.

Corpus placement: #312 of 28,707 conditions by registered trial count.

46 US clinical trials · 21 currently recruiting · #312 of 28,707 conditions by registered trial count

Endothelial Dysfunction: 46 US clinical trials tracked, 21 recruiting.

Endothelial Dysfunction is the subject of 46 registered US clinical trials on ClinicalTrials.gov, 21 of them currently open to new participants. 2 are in Phase 3-4 (later-stage) and 16 in Phase 1-2 (earlier-stage). The most active sponsor is University of Colorado, Denver, running 6 of these trials.

Enrollment posture brief

Registry condition endothelial-dysfunction

OPEN 21 | RECR 46% | LATE 2 | EARLY 16 | RANK #312 | SPON 6

Nearest open-share peer: Amyotrophic Lateral Sclerosis (46% recruiting · 103 trials)

Cognitive Dysfunction50%Hematologic Malignancies47.8%Endothelial Dysfunction (thi…46%Cigarette Smoking43.5%Clear Cell Renal Cell Carcin30.4%
Open-enrollment share among volume-matched conditions near Endothelial Dysfunction

Endothelial Dysfunction lists 21 open slots (46% of 46 indexed trials). Peers are matched on registered volume, not therapeutic-area browse lists. How peer matching works →

Key findings

What ClinicalTrials.gov does not surface for Endothelial Dysfunction on its own pages , computed from the registry mirror as of 2026-08-08. Each line carries its own denominator so it can be quoted as it stands.

  1. Endothelial Dysfunction is recruiting above its size-band peers.

    21 of 46 indexed trials (45.7%) are open to enrollment, against a 39.7% average across 762 conditions with 20-99 trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.

  2. Sponsorship of Endothelial Dysfunction trials is spread across many organizations.

    University of Colorado, Denver accounts for 6 of 46 trials (13%). 30 distinct sponsors appear on at least one study for this condition label.

  3. Most Endothelial Dysfunction trials plan to enrol fewer than 100 people.

    Median target enrolment is 46 among the 46 trials that report a genuine target (sentinel values excluded). 38 of those (82.6%) plan for fewer than 100 participants.

  4. Endothelial Dysfunction research is mostly interventional.

    37 interventional and 9 observational studies make up this index (80.4% interventional). Study type is sponsor-reported on ClinicalTrials.gov.

Phase 111Phase 25Phase 31Phase 41

Open and recent trials

46 total, page 1 of 1

RECRUITING 1,000 participants

Samples From Human Subjects to Facilitate Basic, Translational and Clinical Research

National Institutes of Health Clinical Center (CC)

NCT03253705

RECRUITING NA 256 participants

Sodium Lowering Vascular Effects Trial

Tulane University

NCT05388032

RECRUITING Phase 4 170 participants

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

Vanderbilt University Medical Center

NCT05812755

RECRUITING NA 125 participants

NightWare and Cardiovascular Health in Veterans With PTSD

VA Office of Research and Development

NCT06419959

RECRUITING NA 120 participants

EndoPAT Device for Endothelial Dysfunction in ED

University of California, Irvine

NCT06720597

RECRUITING NA 90 participants

Inspiratory Muscle Strength Training for Lowering Blood Pressure and Improving Endothelial Function in Postmenopausal Women: Comparison With "Standard of Care" Aerobic Exercise

University of Colorado, Boulder

NCT05000515

RECRUITING NA 70 participants

The Iowa ACEs and Sleep Cohort and Manipulating Sleep in Young Adults With ACEs Studies

Nathaniel Jenkins

NCT06454344

RECRUITING NA 70 participants

Bright Light Exposure in Surgical Patients

University of Colorado, Denver

NCT03822949

RECRUITING 66 participants

Optimizing Pulsatility During Cardiopulmonary Bypass

University of Colorado, Denver

NCT05344573

RECRUITING Phase 1 60 participants

MANATEE-T1D: Metformin ANd AutomaTEd Insulin Delivery System Effects on Renal Vascular Resistance, Insulin Sensitivity, and Cardiometabolic Function in Youth With Type 1 Diabetes

Kalie Tommerdahl

NCT05065372

RECRUITING 60 participants

Role of Endothelial Function in SCI CVD Risk

Craig Hospital

NCT06443151

RECRUITING Phase 2 60 participants

Ischemic Conditioning to Promote Microvascular Resiliency in Frail Individuals

Medical College of Wisconsin

NCT05808686

RECRUITING 48 participants

Testosterone Deficiency and Endothelial Dysfunction After Spinal Cord Injury

Craig Hospital

NCT07227740

RECRUITING Early Phase 1 40 participants

Role of ET-1, Physical Activity, and Sedentary Behavior in Microvascular Dysfunction Following GDM

Anna Stanhewicz, PhD

NCT06547619

RECRUITING 40 participants

Endothelial Dysfunction After SCI

Craig Hospital

NCT07227727

RECRUITING Phase 1 35 participants

Effect of a Daily Supplement on Plasma PAI-1 Levels

University of California, Los Angeles

NCT07469475

RECRUITING 30 participants

Puberty Suppression and Cardiometabolic Health

University of Colorado, Denver

NCT04482374

RECRUITING NA 30 participants

ACEs, SIRT1, and Premature Vascular Aging in Humans

Nathaniel Jenkins

NCT07073352

RECRUITING NA 25 participants

Microvascular Dysfunction in Obesity

Florida State University

NCT04087655

RECRUITING Early Phase 1 24 participants

Role of Inflammation in Vascular Phenotype Associated With E-cigarette Use

University of Iowa

NCT06489249

RECRUITING Phase 1 16 participants

B-Complex: A Nutraceutical SANS Countermeasure

National Aeronautics and Space Administration (NASA)

NCT05366933

ACTIVE NOT RECRUITING 500 participants

The DISCOVER INOCA Prospective Multi-center Registry

Yale University

NCT05288361

ACTIVE NOT RECRUITING Phase 1 70 participants

Fisetin to Improve Vascular Function in Older Adults

University of Colorado, Boulder

NCT06133634

ACTIVE NOT RECRUITING Phase 1 58 participants

Wild Blueberries and Cardiovascular Health in Middle-aged/Older Men and Postmenopausal Women

Colorado State University

NCT04530916

ACTIVE NOT RECRUITING Phase 1 46 participants

Enhancing Parasympathetic Activity to Improve Endothelial Dysfunction, Vascular Oxidative Stress in African Americans

Vanderbilt University Medical Center

NCT04769206

COMPLETED Phase 3 200 participants

Correlation of Endothelial Function and Early Coronary Artery Disease in Humans

Mayo Clinic

NCT00271492

COMPLETED 168 participants

Key Dimensions of PTSD and ED

University of California, Los Angeles

NCT03778307

COMPLETED NA 96 participants

Vitamin D Repletion in Coronary Artery Disease

Seth I. Sokol, M.D.

NCT01570309

COMPLETED 76 participants

Use of EndoPAT for Measurements of Endothelial Dysfunction in HIV Infected Children and Healthy Controls

University Hospitals Cleveland Medical Center

NCT02324179

COMPLETED NA 67 participants

Effect of Inorganic Nitrate Supplement on Blood Pressure

Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center

NCT03909789

COMPLETED Phase 2 59 participants

Targeting Inflammation to Treat Cardiovascular Aging

Gary L. Pierce

NCT01775865

COMPLETED NA 40 participants

NightWare and Cardiovascular Health in Adults With PTSD

University of Colorado, Denver

NCT05365607

COMPLETED Phase 2 40 participants

Safety and Efficacy of Salsalate to Treat Endothelial Dysfunction in HIV-infected Adults

University Hospitals Cleveland Medical Center

NCT01046682

COMPLETED NA 33 participants

Electronic Hookah and Endothelial Cell Function

University of California, Los Angeles

NCT04133376

COMPLETED NA 32 participants

Cardiometabolic Benefits of Potatoes Mediated Along the Gut-Vessel Axis in Adults With Metabolic Syndrome

Ohio State University

NCT03624569

COMPLETED NA 30 participants

Effects of Body Mass Index on the Hyperemic Response to Regadenoson

University of Utah

NCT00859833

COMPLETED Phase 2 29 participants

Atherosclerosis, Immune Mediated Inflammation and Hypoestrogenemia in Young Women

Cedars-Sinai Medical Center

NCT03018366

COMPLETED Phase 1 24 participants

N-acetylcysteine to Reduce Oxidative Stress and Improve Endothelial Function in HIV-infected Older Adults

Indiana University

NCT01962961

COMPLETED NA 24 participants

Effects of Aronia Berries on Vascular Endothelial Function and the Gut Microbiota in Middle-Aged/Older Adults

Colorado State University

NCT03824041

COMPLETED NA 23 participants

Role of Mitochondrial-derived Oxidative Stress to Promote Vascular Endothelial Dysfunction in Non-exercisers With Aging

Ball State University

NCT05872139

COMPLETED Phase 1 22 participants

A Phase 1/ Phase 2 Study of TTHX1114(NM141)

Trefoil Therapeutics

NCT04520321

COMPLETED NA 19 participants

Effects of Ovarian Hormone Suppression on Vascular and Cognitive Function

University of Colorado, Denver

NCT03112226

COMPLETED Phase 1 19 participants

Effect of Vitamin D Supplementation on Endothelial Function in Obese Adolescents

Mayo Clinic

NCT01746264

COMPLETED NA 17 participants

Vascular Mechanisms for the Effects of Loss of Ovarian Hormone Function on Cognition in Women

University of Colorado, Denver

NCT02122198

COMPLETED NA 12 participants

Creatine Monohydrate Supplementation and Vascular Endothelial Health

Florida State University

NCT05014659

COMPLETED Phase 2 11 participants

Trial of Oral Glutamine on Mitochondrial Function in CKD

University of Washington

NCT02838979

Phase Distribution

PhaseTrial count
Phase 1 11
Phase 2 5
Phase 3 1
Phase 4 1

Named interventions

Most-linked intervention names on Endothelial Dysfunction records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.

Placebo Dietary supplement
5 trials
Placebo Drug
5 trials
Salsalate Drug
2 trials
NightWare Device
2 trials
Second Intervention (14 days) Dietary supplement
1 trials
Washout (3 weeks) Other
1 trials
First Intervention (14 days) Dietary supplement
1 trials
Electronic hookah vaping without nicotine Other
1 trials

US sites by state

Facility locations filed on Endothelial Dysfunction trials. A trial with sites in several states counts in each.

Colorado 15 trials
California 8 trials
Iowa 5 trials
Ohio 4 trials
New York 3 trials
Indiana 3 trials
Florida 3 trials
Washington 2 trials

Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.

What to do with this Endothelial Dysfunction page

46 registered trials, 21 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.

Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This Endothelial Dysfunction condition card totals 46 registered trials; most-linked intervention Placebo; top US site state Colorado. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.