Ignite Creation Date:
2025-12-25 @ 12:44 AM
Ignite Modification Date:
2026-03-03 @ 4:03 PM
Study NCT ID:
NCT00818467
Status:
COMPLETED
Last Update Posted:
2009-12-01
First Post:
2009-01-06
Is NOT Gene Therapy:
True
Has Adverse Events:
False
Brief Title:
UVB Light and Sunscreen
Sponsor:
Creighton University
Organization:
Study Overview
Official Title:
3% Dihydroxyacetone (DHA or Sunless Tanning Agent) Inhibits Vitamin D Production in the Skin in Response to Ultraviolet Light
Status:
COMPLETED
Status Verified Date:
2009-11
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
Sunscreen
Brief 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?
Detailed Description:
None
Study Oversight
Has Oversight DMC:
False
Is a FDA Regulated Drug?:
None
Is a FDA Regulated Device?:
None
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?: