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NCT Number: NCT05598359

TA-65 and Aging Associated Microvascular Dysfunction

The goal of this clinical trial is to test whether activation of telomerase with a dietary supplement (TA-65) improves microvascular function.

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Key information

Age range

18 year–80 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

About this study

The purpose of this clinical trial is to examine whether activation of autophagy with TA-65 which activates telomerase, improves microvascular function and blood pressure in an older population

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Healthy Adults 18 - 35 and 65+ years of age
  • Subjects with clinical diagnosis of CAD

Exclusion criteria

will include:

  • 36-64 years of age without clinical diagnosis of CAD
  • Self-reported habitual vigorous exercise (>20 min, 3 times per week, 1 yr)
  • Major Adverse Cardiovascular Event (MACE) in the last year (heart attack, stroke)
  • Heart Failure
  • Renal Impairment
  • >3 Pre-existing Cardiovascular Risk Factors (healthy groups only)
  • Type 1 or type 2 diabetes
  • Uncontrolled hypertension
  • Current tobacco use or within last 6 months
  • BMI > 35
  • Hyperlipidemia
  • Hypercholesterolemia
  • Use of anti-coagulant drugs
  • Use of anti-platelet drugs
  • Erectile dysfunction medication in the past 6 months
  • Use of topical/non-topical steroids in last 6 months
  • Hormone replacement therapy (Post-Menopause or Gender Reassignment)
  • History of retinopathy
  • Documented neuromuscular disorders
  • Porphyria Cutanea Tarda (blistering of skin to sun; photosensitivity)
  • Pregnancy (young female subjects)
  • Allergy to lidocaine
  • Current diagnosis of cancer with or without active anti-cancer treatment (pharmaceuticals) or treatment within last 12 months
  • Active COVID-19 or within the past 3 months

Treatment and study plan

TA-65

Dietary Supplement

TA-65 is a purified small molecule extracted from Astragalus root

Placebo

Other

Inactive formulation

Primary outcomes

  1. Nitric Oxide Mediated Endothelium-Dependent Vasodilation via Laser Doppler Flowmetry Coupled with Intradermal Microdialysis

    Time frame: 28 days

    Cutaneous microvascular function measured via laser Doppler flowmetry coupled with intradermal microdialysis of non-specific nitric oxide synthase inhibitor, L-NAME

Secondary outcomes

  1. Systemic Blood Pressure

    Time frame: 28 days

    Brachial systolic, and diastolic blood pressure will be measured via standard brachial blood pressure cuff

Study contacts

Contact information is provided by the study sponsor or research team.

Andreas Beyer, Ph.D.

CONTACT

[email protected]

414-955-7514

William Hughes, Ph.D.

CONTACT

[email protected]

414-955-7519

Sponsors and collaborators

Lead sponsor

Medical College of Wisconsin

Other

Collaborators

  • Penn State University
  • University of Louisville

Registry information

Important dates

Study start
2027
Primary completion
2028
Study completion
2029
First posted
Oct 28, 2022
Registry last updated
May 1, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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