Clinical trial Recruiting at 1 site Phase 2 Interventional Ages 18 to 75

Effects of an antioxidant supplement on blood vessel health in healthy adults

Official title: Role of Mitochondria-derived Oxidative Stress on Microvascular Endothelial Function in Healthy Non-Hispanic Black and White Adults

Run by University of Georgia · NCT06424756 · Data updated 2026-11-12

This study is testing whether an antioxidant supplement can improve blood vessel health in healthy Black adults who may be at risk for heart problems.

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Quick facts

PhasePhase 2
Study typeInterventional
Ages18 Years to 75 Years
SexAll
Enrollment60 (estimated)
SponsorUniversity of Georgia
Academic / other
Drugs / interventionsmethotrexate
Locations1 site (Athens, Georgia)
StatusRecruiting
StartedJuly 1, 2024
Main results expectedMarch 31, 2030
Study endsMarch 31, 2030
Registry record updatedDecember 9, 2024
Trial IDNCT06424756 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are healthy non-Hispanic Black or non-Hispanic White adults aged 18-75 with normal blood pressure and cholesterol levels.

Probably not a fit

Patients with existing cardiovascular or metabolic diseases, skin disorders, or those on certain medications may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study investigates the impact of an antioxidant supplement on vascular function in healthy non-Hispanic Black adults, who are at higher risk for cardiovascular disease. It aims to determine if oxidative stress from mitochondria contributes to vascular dysfunction, potentially leading to hypertension and cardiovascular issues. Participants will receive either the antioxidant supplement MitoQ, MitoTempo, Tempol, or a placebo to assess changes in blood vessel health. The study focuses on understanding the role of oxidative stress in maintaining cardiovascular health.

Why it matters

Potential benefit: If successful, this study could lead to new preventative strategies for cardiovascular disease in at-risk populations.

How similar studies have gone: While there have been studies on antioxidants and vascular health, this specific focus on the non-Hispanic Black population and mitochondrial oxidative stress is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Self-identify as either non-Hispanic Black or non-Hispanic White.
* Men and women 18-75 years old.
* Non-hypertensive (systolic blood pressure \[SBP\]\<130 and diastolic blood pressure \[DBP\] \<85 mmHg).
* Have low density lipoprotein cholesterol \<150mg/dl.
* Have HbA1C \<6.0%.

Exclusion Criteria:

* Rash, skin disease, or disorders of pigmentation (e.g., psoriasis, eczema, vitiligo, or other skin inflammatory skin disorders)
* Known skin allergies to latex or adhesives
* Smoking and/or use of nicotine-containing products within the past year
* Use of illegal/recreational drugs
* Generalized kidney disease
* Taking chloramphenicol, cholestyramine, medication for seizures, methotrexate, nitrofurantoin, tetracycline, barbiturates, steroids, phenobarbital/phenytoin, orlistat or pyrimethamine
* Any current medications which could conceivably alter the cardiovascular control or responses
* Diagnosed or suspected metabolic or cardiovascular disease
* Current pregnancy or breastfeeding
* History of skin or other cancers
* Diagnosed or suspected diabetes (HbA1c ≥6.0)
* Anybody with narcolepsy or who has been diagnosed with any condition that impairs body temperature regulation.

Where it's running

  • Ramsey Student Center, University of Georgia
    Athens, Georgia, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.