Effect of Vitamin D Supplementation on Hemoglobin A1c

Completed · Phase 2

Conditions studied: Diabetes Mellitus, Vitamin D Deficiency

In brief

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.

Key facts

Study ID

NCT01354262

Run by

Ascension Health

People needed

150

Starts

2011-03-01

Expected to finish

2012-06-01

Last updated by the study team

2015-04-23

Who can join

Age: 34 and older, up to 69. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Type 2 diabetes mellitus
• Hgb A1c greater then 7.0
• Adults aged 34 to 69 years.

You may not qualify if…

• known primary hyperparathyroidism, sarcoidosis, tuberculosis, cancer, potential terminal illness,
• history of serum creatinine more than 2.0 mg/dL,
• vitamin D supplement more than 200 IU/day
• history of inflammatory bowel disease, hypercalcemia or kidney stones

Where it is running

• Genesys East Flint Campus Clinic — Flint, Michigan, United States

Full record on ClinicalTrials.gov

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