Vitamin d deficiency linked to insulin resistance in diabetes?
NCT ID NCT07467161
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study will check if low vitamin D levels are linked to higher insulin resistance in 165 adults with type 2 diabetes. Researchers will use a simple blood test called the triglyceride-glucose index. The goal is to better understand how vitamin D might affect diabetes control.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If a link is found, it could point to vitamin D as a factor in managing insulin resistance in type 2 diabetes.
- What could go wrong
- This is an observational study, not a treatment trial. It cannot prove cause and effect, and results may not lead to any change in care.
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Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 165 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Mar 2026
An estimate. Start dates often move.
- Expected to finish
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Mar 2028
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Patients with type 2 DM
- Ages
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Children (under 18), adults (18 to 64) and older adults (65 and over)
- Sex
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Anyone
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Patients with type 2 DM diagnosed based on American Diabetes Association criteria. Exclusion Criteria: * Patients with type 1 DM or other types of diabetes. * Patients with complications of acute DM. * Pregnant females. * Malignancy. * BMI \> 35 kg/m² * Major co-morbidities as end-stage renal disease or liver cell failure. * Patients on lipid lowering therapy. * Patients on vitamin D supplementation.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
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