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NCT00473239 · ClinicalTrials.gov registry record · NA
The Pharmacokinetics of a Single Large Dose of Vitamin D3
A NA study, sponsored by Creighton University.
- Completed
- Registry status
- NA
- Development phase
- 40
- Enrollment target
NCT00473239: Completed NA study, sponsored by Creighton University.
NCT00473239 is a NA study that has completed, run by Creighton University. The registered enrollment target is 40 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (97% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT00473239, a NA study, has completed, sponsored by Creighton University.
- COMPLETED
- Registry status
- NA
- Development phase
- 40 participants
- Enrollment target
Study Summary
When people eat a meal, some, but not all of the calcium in that meal is absorbed, that is, moved into the bloodstream. When the skin is exposed to sunlight during summer months, Vitamin D is made there and then modified into more active forms by the liver and kidneys. These more active forms of Vitamin D improve calcium absorption. Many adults living in the U.S. have little or no sun exposure and are low in Vitamin D. A single dose of 100,000 IU of Vitamin D3 has been used both as empiric treatment for Vitamin D deficiency as well as in controlled trials without risk of raising blood calcium to dangerous levels.This study is to determine the serum levels of Vitamin D and 25-hydroxyvitamin D (vitamin D after it has been modified by the liver) that can be expected when Vitamin D3 is given as a single oral dose of 100,000 IU.
Interventions
- DRUG cholecalciferol.
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 40 participants |
| Start Date | 2006-10 |
| Est. Completion | 2007-03 |
| Phase | NA |
What the finished NCT00473239 record still lists
NCT00473239 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 40 participants, a relatively small participant target, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (97% lower).
The record links to 0 conditions, and to 1 intervention - of which cholecalciferol. is the first listed.
NCT00473239 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT00473239 about?
NCT00473239 is a clinical study titled "The Pharmacokinetics of a Single Large Dose of Vitamin D3". When people eat a meal, some, but not all of the calcium in that meal is absorbed, that is, moved into the bloodstream. When the skin is exposed to sunlight during summer months, Vitamin D is made there and then modified into more active forms by the liver and kidneys. These more active forms of Vit...
What is the current status of trial NCT00473239?
This trial is currently completed. It is a NA study. The enrollment target is 40 participants. The study started on 2006-10. Estimated completion is 2007-03.
What interventions are being tested in trial NCT00473239?
The interventions under investigation include: cholecalciferol. (DRUG).
Who is sponsoring clinical trial NCT00473239?
This trial is sponsored by Creighton University, which has 98 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT00473239's enrollment target sits among peer trials
40 1447th of 2000 higher than 465 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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