NCT01214356

Impact of Vitamin D on Diabetic Kidney Disease in African Americans

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 54 (actual)
• Sponsor: Medical University of South Carolina · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

This purpose of this project is to evaluate the effectiveness of vitamin D supplementation over 12 months in vitamin D deficient African American adults with type 2 diabetes.

Detailed description

Diabetic kidney disease is increasing in prevalence and is associated with significant morbidity and mortality. Health disparities exist in the progression of diabetic kidney disease, with minorities being more affected even when adjusting for treatment, glycemic and hypertensive control, and medical coverage. Secondary prevention of the progression of diabetic kidney disease is hindered by a lack of easily modifiable risk factors. Based on animal and observational human studies, vitamin D deficiency is potentially a novel, modifiable risk factor that may interrupt or delay the progression of diabetic kidney disease through direct effects as well as by helping to ameliorate kidney disease risk factors, such as hyperglycemia, hypertension and inflammation. In addition, based on minorities having a higher prevalence of vitamin D deficiency, it may also potentially impact the differential progression of diabetic kidney disease in minorities. However, clinical trials evaluating the impact of vitamin D supplementation on diabetic kidney disease are lacking. Thus, this pilot study funded as an R03 through the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) has the following specific aims: (1): To evaluate the impact of vitamin D supplementation (vitamin D3 at 400 IU/d versus 4000 IU/d) on the proportion of individuals with progression of albuminuria over 12 months in a sample of African American participants with vitamin D deficiency in a randomized controlled trial. (2): To identify whether kidney disease risk factors such as blood pressure and glycemic control mediate the impact of vitamin D supplementation on the progression of albuminuria over 12 months in a sample of African American participants with vitamin D deficiency in a randomized controlled trial.

Conditions

• Diabetic Kidney Disease

Interventions

Type	Name	Description
DIETARY_SUPPLEMENT	Vitamin D3	Patients receive vitamin D 400 IU/d with calcium carbonate (1000 mg) once per day for 15 months (3 month run in phase with 12 month follow up)
DIETARY_SUPPLEMENT	Vitamin D3	Patients receive vitamin D 4000 IU/d with calcium carbonate (1000 mg) once per day for 15 months (3 month run in phase with 12 month follow up)

Timeline

• Start date: 2010-08-01
• Primary completion: 2013-07-01
• Completion: 2013-07-01
• First posted: 2010-10-05
• Last updated: 2018-10-16
• Results posted: 2018-10-16

Locations

1 site across 1 country: United States