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NCT02513823 · ClinicalTrials.gov registry record · NA
Effectiveness of Vitamin D Supplementation
A NA study, sponsored by Texas Woman's University.
- Terminated
- Registry status
- NA
- Development phase
- 27
- Enrollment target
NCT02513823: Clinical Trial NA study, sponsored by Texas Woman's University.
NCT02513823 is a NA study that was terminated before completion, run by Texas Woman's University. The registered enrollment target is 27 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (98% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT02513823, a NA study, was terminated before completion, sponsored by Texas Woman's University.
- TERMINATED
- Registry status
- NA
- Development phase
- 27 participants
- Enrollment target
Study Summary
This pilot study will examine the effectiveness of vitamin D supplementation on reducing blood pressure and improving endothelial function. Premenopausal African American women will be recruited. Participants will be instructed to record food intake for three days to estimate usual dietary intake at baseline and at the 10th week. At the baseline clinic visit a 10 week supply of vitamin D3 supplements (2,000 IU/day; Nature Made ®) will be given to participants and log sheets provided to record supplement intake. To answer the primary research questions, within subjects repeated measures analysis of variance (ANOVA) tests will be conducted to test if any differences in blood pressure, serum 25(OH)D concentrations, and RHI are statistically different after 10 weeks of supplementation with 2,000 IU/d of vitamin D. Exploratory multivariate linear regression models will be constructed to determine relationships between vitamin D status and vascular function parameters (blood pressure, RHI) before and after adjustment for age and BMI.
Primary Outcome
Changes in systolic and diastolic blood pressure will be measured at baseline and following vitamin D supplementation for 10 weeks in African American healthy pre-menopausal women
Interventions
- DIETARY_SUPPLEMENT 2,000 International Units (IU)of vitamin D3
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 27 participants |
| Start Date | 2015-12-01 |
| Est. Completion | 2016-10-14 |
| Phase | NA |
Why NCT02513823 stopped before completion
NCT02513823 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 27 participants, a relatively small participant target, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (98% lower).
The record links to 0 conditions, and to 1 intervention - of which 2,000 International Units (IU)of vitamin D3 is the first listed.
NCT02513823 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT02513823 about?
NCT02513823 is a clinical study titled "Effectiveness of Vitamin D Supplementation". This pilot study will examine the effectiveness of vitamin D supplementation on reducing blood pressure and improving endothelial function. Premenopausal African American women will be recruited. Participants will be instructed to record food intake for three days to estimate usual dietary intake at...
What is the current status of trial NCT02513823?
This trial is currently terminated. It is a NA study. The enrollment target is 27 participants. The study started on 2015-12-01. Estimated completion is 2016-10-14.
What interventions are being tested in trial NCT02513823?
The interventions under investigation include: 2,000 International Units (IU)of vitamin D3 (DIETARY_SUPPLEMENT).
Who is sponsoring clinical trial NCT02513823?
This trial is sponsored by Texas Woman's University, which has 51 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT02513823's enrollment target sits among peer trials
27 1708th of 2000 higher than 291 of 2,000 other NA trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other NA trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
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