Vitamin D Production Levels Achieved by Sunbed Tanning

NCT ID: NCT02334592

Last Updated: 2015-01-08

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 87 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2014-01-31
• Study Completion Date: 2014-05-31

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.

Conditions

Healthy

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: BASIC_SCIENCE
• Blinding Strategy: NONE

Study Groups

Low Pressure 100W sunbed

Group Type: EXPERIMENTAL

Sunbed tanning

Intervention Type: RADIATION

Invention groups undergo a 12-week tanning protocol that follows Health Canada's RED Act

Low Pressure 160W sunbed

Group Type: EXPERIMENTAL

Sunbed tanning

Intervention Type: RADIATION

Invention groups undergo a 12-week tanning protocol that follows Health Canada's RED Act

High Pressure sunbed

Group Type: EXPERIMENTAL

Sunbed tanning

Intervention Type: RADIATION

Invention groups undergo a 12-week tanning protocol that follows Health Canada's RED Act

Control group

Group Type: NO_INTERVENTION

No interventions assigned to this group

Interventions

Sunbed tanning

Invention groups undergo a 12-week tanning protocol that follows Health Canada's RED Act

Intervention Type: RADIATION

Eligibility Criteria

Inclusion Criteria

• 18 years and older, male or female

Exclusion Criteria

• 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)

• Minimum Eligible Age: 18 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

Vitamin D Society

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

References

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.

Reference Type: DERIVED

PMID: 29484099 (View on PubMed)

Other Identifiers

VDS-1234

Identifier Type: -

Identifier Source: org_study_id