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Vitamin d pills tested for diabetes control

NCT ID NCT07468721

Disease control Sponsor: Faculty of Medical Sciences, Clinical Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

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

Summary

This study looked at whether giving vitamin D supplements to adults with type 2 diabetes who also have low vitamin D levels can improve their blood sugar control. 119 participants took a high dose of vitamin D once a month for three months. Researchers measured blood sugar and other metabolic markers before and after the treatment to see if correcting the vitamin D deficiency made a difference.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

119 people

The number who actually took part.

Started

May 2024

Finished

Mar 2025

Lead sponsor

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.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show 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: * Adults (≥18 years) of both sexes. * Diagnosis of type 2 diabetes mellitus (T2DM). * Patients treated at the Endocrinology Service of the Hospital de Clínicas, Facultad de Ciencias Médicas, Universidad Nacional de Asunción (FCM-UNA), or in private clinical practice between May and September 2024. * Serum 25-hydroxyvitamin D \[25(OH)D\] deficiency \< 30 ng/mL. * Participants who adhered to the prescribed vitamin D supplementation for a period of three months. Exclusion Criteria: * Patients with intestinal malabsorption disorders (e.g., celiac disease, Crohn's disease, or other disorders affecting calcium absorption). * Pregnant women. * Patients already taking vitamin D supplementation at the time of study initiation. * Patients with chronic kidney disease. * Patients with a history of bariatric surgery

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Conditions

The condition(s) this trial relates to.

type 2 diabetes mellitus vitamin D deficiency

As listed by the trial registrant

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

Type 2 diabetes mellitus (T2DM) Vitamin D deficiency

Contacts and locations

Locations

  • Hospital de Clínicas, Facultad de Ciencias Médicas, Universidad Nacional de Asunción

    San Lorenzo, Central Department, 2169, Paraguay

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