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NCT00818467 · ClinicalTrials.gov registry record · Phase 4
UVB Light and Sunscreen
A Phase 4 study, sponsored by Creighton University.
- Completed
- Registry status
- Phase 4
- Development phase
- 50
- Enrollment target
NCT00818467: Completed Phase 4 study, sponsored by Creighton University.
NCT00818467 is a Phase 4 study that has completed, run by Creighton University. The registered enrollment target is 50 participants, below the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (90% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT00818467, a Phase 4 study, has completed, sponsored by Creighton University.
- COMPLETED
- Registry status
- Phase 4
- Development phase
- 50 participants
- Enrollment target
Study Summary
Patients need vitamin D which is normally produced in the skin in response to ultraviolet light from the sun. Vitamin D is important for calcium absorption and good bone health. Physicians have been using sunscreens to protect patients from skin cancer and the aging effects of sunlight for a least a half a century. Dermatologists have promoted sunscreen use to restrict sunlight exposure especially in white Caucasians. If this behavior is done 100% of the time when outdoors individuals may suffer from vitamin D deficiency. It is impossible to influence persons' behavior to wear sunscreens all the time when outdoors. With the use of sunless tanning agent (DHA), once a week, we can obtain a continuous sunscreen in the top layer of the skin that will not wash off, can't be removed with soap and water, or removed by perspiration. Under these circumstances we can answer the scientific question, will sunscreen use inhibit the production of vitamin D in the skin?
Interventions
- OTHER Tanning spray
- OTHER UVB
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 50 participants |
| Start Date | 2008-05 |
| Est. Completion | 2009-02 |
| Phase | Phase 4 |
What the finished NCT00818467 record still lists
NCT00818467 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 50 participants, a relatively small participant target, below the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (90% lower).
The record links to 0 conditions, and to 2 interventions - of which Tanning spray is the first listed.
NCT00818467 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT00818467 about?
NCT00818467 is a clinical study titled "UVB Light and Sunscreen". Patients need vitamin D which is normally produced in the skin in response to ultraviolet light from the sun. Vitamin D is important for calcium absorption and good bone health. Physicians have been using sunscreens to protect patients from skin cancer and the aging effects of sunlight for a least a...
What is the current status of trial NCT00818467?
This trial is currently completed. It is a Phase 4 study. The enrollment target is 50 participants. The study started on 2008-05. Estimated completion is 2009-02.
What interventions are being tested in trial NCT00818467?
The interventions under investigation include: Tanning spray (OTHER), UVB (OTHER).
Who is sponsoring clinical trial NCT00818467?
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 NCT00818467's enrollment target sits among peer trials
50 1255th of 2000 higher than 678 of 2,000 other Phase 4 trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Phase 4 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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