Vitamin d dosing trial aims to stop prediabetes from becoming diabetes

NCT ID NCT07448974

Not yet recruiting Prevention Sponsor: Tufts Medical Center Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests whether taking weekly vitamin D supplements, with doses adjusted to reach a target blood level, can help control blood sugar in 100 adults aged 30-74 who have prediabetes (high risk for type 2 diabetes). Participants are randomly assigned to receive vitamin D or a placebo for about 18 months. The main goal is to see if vitamin D increases the time blood sugar stays in a healthy range, potentially preventing diabetes.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for PREDIABETES are added.

Our safety recommendation!

By submitting, you agree to our Terms of use

Conditions

The condition(s) this trial relates to.

prediabetes syndrome type 2 diabetes mellitus prevention target

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

PREDIABETES TYPE 2 DIABETES (T2DM)

Contacts and locations

Show contact details

Study contacts

Contact

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

Locations

Tufts Medical Center

Boston, Massachusetts, 02111, United States

Contact

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