RECRUITING

Effect of Zinc on Glucose Homeostasis

Study Overview

This clinical trial focuses on testing the efficacy of different digital interventions to promote re-engagement in cancer-related long-term follow-up care for adolescent and young adult (AYA) survivors of childhood cancer.

Description

The purpose of this investigation is to evaluate the impact of zinc supplementation on fasting glucose levels, hemoglobin A1c (HbA1c), and other indices of glucose homeostasis in individuals with prediabetes. The investigators hypothesize that prediabetic subjects receiving zinc will demonstrate a greater decrease in HbA1c and blood glucose compared to prediabetic subjects receiving placebo. Specific Aim: Conduct a prospective, double-blind randomized clinical trial comparing the effects of 12 months of zinc supplementation (zinc gluconate 30 milligram \[mg\] per day) versus placebo on glucose homeostasis. Based upon expected effect size and power calculations, and anticipating a 20% drop-out rate, the investigators will study 200 prediabetic subjects (100 per group) using a 1:1 randomization design. HbA1c, fasting plasma glucose, and other measures will be obtained at 0, 6, and 12 months and will be compared between zinc supplementation and placebo groups.

Official Title

Clinical and Nutrigenetic Assessment of Zinc in Participants With Prediabetes

Quick Facts

Study Start:2024-02-16
Study Completion:2028-07
Study Type:Not specified
Phase:Not Applicable
Enrollment:Not specified
Status:RECRUITING

Study ID

NCT05835037

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Ages Eligible for Study:18 Years to 80 Years
Sexes Eligible for Study:ALL
Accepts Healthy Volunteers:No
Standard Ages:ADULT, OLDER_ADULT
Inclusion CriteriaExclusion Criteria
  1. * Amish men or women who are 18 to 80 years old
  2. * Prediabetes (HgbA1c = 5.7-6.4% or fasting glucose levels 100-125 mg/dL)
  1. * Pregnant
  2. * Currently breastfeeding
  3. * History of severe gastrointestinal disorders or upper gastrointestinal surgery
  4. * Has hemochromatosis, cancer, liver disease, kidney disease, cardiovascular disease, or other coexisting malignancy
  5. * Hemoglobin \< 12.5 g/dl (male) or \< 11 g/dl (female)
  6. * Severe hypertension (blood pressure \> 160/95 mm Hg)
  7. * Has a creatinine greater than 2.0 mg/dl, aspartate aminotransferase (AST) or alanine transaminase (ALT) greater than 2 times the upper limit of normal, hematocrit (Hct) less than 32%, or thyroid-stimulating hormone (TSH) less than 0.4 or greater than 5.5 milli-international units (mIU) per liter.
  8. * At the discretion of the study physician or PI, taking medications that affect the outcomes of the study including, but not limited to, corticosteroids, anti-psychotic agents, protease inhibitors, oral contraceptives, estrogens, niacin, and some classes of antidepressants, statins, and antihypertensive medications
  9. * Zinc hypersensitivity
  10. * Use of denture adhesive containing zinc
  11. * Taking other medications or zinc-containing supplements and is unwilling or cannot safely, in the opinion of the study physician, discontinue their use at least 2 weeks prior to protocol initiation
  12. * Any other condition that would, in the opinion of the investigator, place them at an unacceptable risk or render them unable to meet the requirements of the protocol.

Contacts and Locations

Study Contact

Joshua P Lewis, PhD
CONTACT
410-706-5087
jlewis2@som.umaryland.edu
Hilary B Whitlatch, MD
CONTACT
443-682-6800
hwhitlatch@som.umaryland.edu

Principal Investigator

Joshua P Lewis, PhD
PRINCIPAL_INVESTIGATOR
University of Maryland, Baltimore

Study Locations (Sites)

Amish Research Clinic
Lancaster, Pennsylvania, 17602
United States

Collaborators and Investigators

Sponsor: University of Maryland, Baltimore

  • Joshua P Lewis, PhD, PRINCIPAL_INVESTIGATOR, University of Maryland, Baltimore

Study Record Dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Registration Dates

Study Start Date2024-02-16
Study Completion Date2028-07

Study Record Updates

Study Start Date2024-02-16
Study Completion Date2028-07

Terms related to this study

Additional Relevant MeSH Terms

  • Prediabetic State
  • Hyperglycemia