Clinical trial Recruiting at 1 site Early Phase 1 Interventional Ages 18 to 80

Examining how autophagy affects blood vessel function in Type 2 Diabetes

Official title: Role of Autophagy in Type 2 Diabetes Microvascular Dysfunction

Run by Medical College of Wisconsin · NCT05593549 · Data updated 2026-11-12

This study is testing if a supplement that boosts a process called autophagy can improve blood vessel function in adults with Type 2 Diabetes.

Quick facts

PhaseEarly Phase 1
Study typeInterventional
Ages18 Years to 80 Years
SexAll
Enrollment60 (estimated)
SponsorMedical College of Wisconsin
Academic / other
Locations1 site (Milwaukee, Wisconsin)
StatusRecruiting
StartedJanuary 1, 2023
Main results expectedDecember 31, 2028
Study endsDecember 31, 2029
Registry record updatedOctober 30, 2025
Trial IDNCT05593549 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include adults aged 18-80 with a clinical diagnosis of Type 2 Diabetes or otherwise healthy individuals with minimal cardiovascular risk factors.

Probably not a fit

Patients with uncontrolled hypertension, significant cardiovascular disease, or other specified health conditions 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 clinical trial investigates the impact of autophagy on microvascular function in adults with Type 2 Diabetes. Participants will undergo two study days, where the first day will assess their microvascular function, followed by a 14-day supplementation period with either trehalose, an autophagy activator, or a placebo. The second study day will again evaluate microvascular function to determine the effects of the intervention. The study aims to clarify whether Type 2 Diabetes impairs autophagy and subsequently affects microvascular health.

Why it matters

Potential benefit: If successful, this study could lead to new therapeutic strategies for improving microvascular function in patients with Type 2 Diabetes.

How similar studies have gone: While the role of autophagy in vascular health is being explored, this specific approach in the context of Type 2 Diabetes and microvascular function is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria: Participants must be between 18-80 yrs. of age and will be delineated into two groups

* Clinical Diagnosis of Type 2 Diabetes Mellitus in accordance with American Diabetes Association (ADA) guidelines (Type 2 Diabetic group)
* Otherwise healthy individuals (Healthy control group) with no more than 1 cardiovascular risk factor

Exclusion Criteria:

* Uncontrolled hypertension
* Current Tobacco use or within last 6 months
* BMI \> 35
* Hyperlipidemia
* Hypercholesterolemia
* Type 1 Diabetes
* Use of anti-coagulant drugs, or anti-platelet drugs
* Symptomatic coronary artery disease
* Heart Failure
* Renal Impairment
* Hormone Replacement Therapy
* History of Retinopathy
* Documented Neuromuscular Disorders
* Porphyria Cutanea Tarda (blistering of skin to sun; photosensitivity)
* Pregnancy (Young Female subjects)
* Allergies to Povidone Iodine
* Use Erectile Dysfunction Medication in the past 6 months
* Use of Topical/non-topical Steroids in last 6 months
* Active Anti-Cancer Treatment or Treatment within last 12 months
* Active COVID-19 or within the past 3 months
* Gender Reassignment Therapy

Where it's running

  • Medical College of Wisconsin
    Milwaukee, Wisconsin, United States
    Recruiting

Study contacts

  • Principal investigator: William Hughes, Ph.D. — Medical College of Wisconsin
  • Study coordinator: William Hughes, Ph.D.
  • Email: whughes@mcw.edu
  • Phone: 414-955-7519

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.