Vitamin D Production Levels Achieved by Sunbed Tanning
The Impact of Health Canada's Sunbed Exposure Time Guidelines on Serum 25(OH)D Concentrations
1 other identifier
interventional
87
0 countries
N/A
Brief Summary
Health Canada's Radiation Emitting Devices (RED) Act provides exposure time guidelines for sunbed use. These guidelines are intended to protect sunbed users from overexposure to UV radiation. Overexposure is defined as "exposure that exceeds the amount needed for vitamin D production and could lead to skin or eye damage. Acute overexposure induces sunburn." However, the effect of the recommended time exposure schedule on serum 25(OH)D response has not been characterized. Further, it is unknown if the maximum time exposures are required to reach and/or maintain optimal 25(OH)D levels. The aim of the current study is to characterize serum 25(OH)D response to regular sunbed use following the time exposure schedule recommended by Health Canada.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable healthy
Started Jan 2014
Shorter than P25 for not_applicable healthy
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
January 1, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 1, 2014
CompletedStudy Completion
Last participant's last visit for all outcomes
May 1, 2014
CompletedFirst Submitted
Initial submission to the registry
January 6, 2015
CompletedFirst Posted
Study publicly available on registry
January 8, 2015
CompletedJanuary 8, 2015
December 1, 2013
4 months
January 6, 2015
January 7, 2015
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
To characterize serum 25(OH)D response to regular sunbed use, when performed according to the RED Act exposure time guidelines
12 weeks
Secondary Outcomes (2)
To characterize serum 25(OH)D response with respect to sunbed lamp output (100W, 160W and High Pressure).
12 weeks
To characterize serum 25(OH)D level with respect to skin lightness.
12 weeks
Study Arms (4)
Low Pressure 100W sunbed
EXPERIMENTALLow Pressure 160W sunbed
EXPERIMENTALHigh Pressure sunbed
EXPERIMENTALControl group
NO INTERVENTIONInterventions
Invention groups undergo a 12-week tanning protocol that follows Health Canada's RED Act
Eligibility Criteria
You may qualify if:
- years and older, male or female
You may not qualify if:
- History of skin cancer, granulomatous disease, liver disease, or kidney disease
- Photosensitive medications
- Pregnancy
- Vitamin D supplementation within last 60 days
- Sunbed use within last 60 days
- Planned travel to sunny destination during study period (January to April 2014)
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Related Publications (1)
Kimball SM, Lee J, Vieth R. Sunbeds with UVB radiation can produce physiological levels of serum 25-Hydroxyvitamin D in healthy volunteers. Dermatoendocrinol. 2017 Oct 17;9(1):e1375635. doi: 10.1080/19381980.2017.1375635. eCollection 2017.
PMID: 29484099DERIVED
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- BASIC SCIENCE
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
January 6, 2015
First Posted
January 8, 2015
Study Start
January 1, 2014
Primary Completion
May 1, 2014
Study Completion
May 1, 2014
Last Updated
January 8, 2015
Record last verified: 2013-12