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NCT00784511 · ClinicalTrials.gov registry record · Phase 2
Vitamin D, Glucose Control and Insulin Sensitivity in African-Americans
A Phase 2 study, sponsored by Tufts University.
- Completed
- Registry status
- Phase 2
- Development phase
- 100
- Enrollment target
NCT00784511 is a Phase 2 study that has completed, run by Tufts University. The registered enrollment target is 100 participants.
The verdict
NCT00784511, a Phase 2 study, has completed, sponsored by Tufts University.
- COMPLETED
- Registry status
- Phase 2
- Development phase
- 100 participants
- Enrollment target
Study Summary
North American blacks tend to have low blood levels of vitamin D because pigmentation blocks vitamin D production in the skin. They also have higher rates of developing type 2 diabetes and higher rates of complications from the disease compared with whites. Although there is compelling evidence that adequate vitamin D may reduce the risk for type 2 diabetes in whites, recent evidence from a national survey demonstrated an association of vitamin D with diabetes in whites but not in blacks. However, the central hypothesis of this study is that providing enough supplemental vitamin D to blacks (raising their blood levels higher than that of most participants in the survey) will improve blood measures related to diabetes risk. The proposed study is a 12-week randomized, double-blind, placebo-controlled experiment designed to examine the effect of vitamin D supplementation (100 μg/d ) on insulin secretion, insulin sensitivity and glucose control in pre-diabetic black men and women aged 40 and older.
Interventions
- DIETARY_SUPPLEMENT cholecalciferol
- OTHER microcrystalline cellulose
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 100 participants |
| Start Date | 2008-07 |
| Est. Completion | 2011-02 |
| Phase | Phase 2 |
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Full Details on ClinicalTrials.gov ↗What the Registry Record Tells You About NCT00784511
The ClinicalTrials.gov registry entry for NCT00784511 describes a study currently listed as completed, categorized as Phase 2. The registered enrollment target is 100 participants, a figure that helps gauge the scale of data the investigators plan to collect. The listed sponsor is Tufts University, which has 163 total studies on file at ClinicalTrials.gov.
The record links to 0 conditions, and to 2 interventions - of which cholecalciferol is the first listed.
NCT00784511 reports 0 study locations.
Frequently Asked Questions
What is clinical trial NCT00784511 about?
NCT00784511 is a clinical study titled "Vitamin D, Glucose Control and Insulin Sensitivity in African-Americans". North American blacks tend to have low blood levels of vitamin D because pigmentation blocks vitamin D production in the skin. They also have higher rates of developing type 2 diabetes and higher rates of complications from the disease compared with whites. Although there is compelling evidence that...
What is the current status of trial NCT00784511?
This trial is currently completed. It is a Phase 2 study. The enrollment target is 100 participants. The study started on 2008-07. Estimated completion is 2011-02.
What interventions are being tested in trial NCT00784511?
The interventions under investigation include: cholecalciferol (DIETARY_SUPPLEMENT), microcrystalline cellulose (OTHER).
Who is sponsoring clinical trial NCT00784511?
This trial is sponsored by Tufts University, which has 163 total clinical trials registered on ClinicalTrials.gov.
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