# Effect of Vitamin D Supplementation on Hemoglobin A1c in Patients With Uncontrolled Type 2 Diabetes Mellitus

> **NCT00985361** · NA · COMPLETED · sponsor: **ProMedica Health System** · enrollment: 37 (actual)

## Conditions studied

- Type 2 Diabetes Mellitus

## Interventions

- **DIETARY_SUPPLEMENT:** Vitamin D3 2000 international units daily
- **DIETARY_SUPPLEMENT:** Vitamin C 500mg daily

## Key facts

- **NCT ID:** NCT00985361
- **Lead sponsor:** ProMedica Health System
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2009-10
- **Primary completion:** 2010-03
- **Final completion:** 2010-03
- **Target enrollment:** 37 (ACTUAL)
- **Last updated:** 2010-05-06


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00985361

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00985361, "Effect of Vitamin D Supplementation on Hemoglobin A1c in Patients With Uncontrolled Type 2 Diabetes Mellitus". Retrieved via AI Analytics 2026-06-13 from https://api.ai-analytics.org/clinical/NCT00985361. Licensed CC0.

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