NCT07468721Completed
Effect of Vitamin D Supplementation on Metabolic Parameters in Patients With Type 2 Diabetes and Vitamin D Deficiency
Effect of Vitamin D Administration on Metabolic Parameters in Patients With Type 2 Diabetes and Vitamin D Deficiency: Experience From the Endocrinology Department of the Hospital de Clínicas (FCM/UNA) and Private Practice
Source: ClinicalTrials.gov · Last updated 12 Mar 2026
Brief summary (registry, in English)
The goal of this clinical study is to learn whether vitamin D supplementation improves metabolic control in adults with type 2 diabetes mellitus who have vitamin D deficiency. The main questions it aims to answer are: Does vitamin D supplementation improve fasting glucose and glycated hemoglobin (HbA1c) levels in patients with type 2 diabetes and vitamin D deficiency? Does vitamin D supplementation increase serum vitamin D concentrations in these patients? Researchers will evaluate metabolic parameters before and after vitamin D supplementation to assess changes associated with correction of vitamin D deficiency. Participants will: Receive oral vitamin D supplementation (100,000 IU once monthly) for three months Have fasting glucose, HbA1c, body mass index (BMI), and serum vitamin D levels measured at baseline and after three months of supplementation.
- Status (registry)
- Completed
- Study type
- Interventional
- Enrollment
- 119 (actual)
- First submitted
- 9 Mar 2026
- Start date
- 7 May 2024
- Primary completion date
- 30 Sept 2024
- Lead sponsor
- Faculty of Medical Sciences, Clinical Hospital
- Diseases
- Type 2 diabetes
- NCT number
- NCT07468721
What you commit to
- Study type: Interventional
- Participants enrolled: 119
- From 7 May 2024 to the primary completion date, 30 Sept 2024
- 1 site in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Other illness
- Patients with chronic kidney disease.
- Patients with a history of bariatric surgery
Lab values
- Patients with intestinal malabsorption disorders (e.g., celiac disease, Crohn's disease, or other disorders affecting calcium absorption).
Other
- Pregnant women.
- Patients already taking vitamin D supplementation at the time of study initiation.
Who the study is looking for
- 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.
Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers
Sites (1)
Sites in registry order. Save your city in your profile to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Hospital de Clínicas, Facultad de Ciencias Médicas, Universidad Nacional de Asunción Coordinator of this site? Confirm its status | San Lorenzo | Paraguay | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.