Vitamin d dosing trial aims to halt diabetes in its tracks

NCT ID NCT07448974

First seen Mar 05, 2026 · Last updated May 13, 2026 · Updated 9 times

Summary

This study tests whether weekly vitamin D supplements, adjusted to reach a specific blood level, can improve blood sugar control in 100 adults aged 30-74 with prediabetes. Participants are randomly assigned to vitamin D or placebo for 18 months, with dose adjustments based on blood tests. The main goal is to see if vitamin D increases the time blood sugar stays in a healthy range, potentially preventing type 2 diabetes.

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Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Tufts Medical Center

    Boston, Massachusetts, 02111, United States

    Contact

    Contact Phone: •••-•••-•••• Email: •••••@•••••

Conditions

Explore the condition pages connected to this study.