Effect of Vitamin D Supplementation on Hemoglobin A1c
Public ClinicalTrials.gov record NCT01354262. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Does Vitamin D Supplement Alter Serum Level of Glycosylated Hemoglobin in Adult Patients Between 34-74 Years With Type 2 Diabetes Mellitus and Vitamin D Deficiency?
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This is a prospective, randomized, non-blinded interventional study that will investigate the effect of a vitamin D supplement on HbA1c in patients with uncontrolled type 2 diabetes mellitus (DM) and vitamin D deficiency. The goal is to investigate whether correcting vitamin D deficiency will alter the HbA1c level in patients with type 2 DM and lower than normal vitamin D level. My hypothesis is that correcting vitamin D deficiency decreases HbA1c levels in patients with type 2 DM and vitamin D deficiency.
Study identification
- NCT ID
- NCT01354262
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 2
- Enrollment
- 150 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 34 Years to 69 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Mar 2011 (Type not available)
- Primary completion
- Jan 2012 (Actual)
- Completion
- Jun 2012 (Actual)
- Last update posted
- Apr 23, 2015
2011 – 2012
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Genesys East Flint Campus Clinic | Flint | Michigan | 48503 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT01354262, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Apr 23, 2015 · Synced Oct 18, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT01354262 live on ClinicalTrials.gov.