Vitamin D Production Levels Achieved by Sunbed Tanning

January 7, 2015 updated by: Vitamin D Society

The Impact of Health Canada's Sunbed Exposure Time Guidelines on Serum 25(OH)D Concentrations

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.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

87

Phase

  • Not Applicable

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

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)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: BASIC_SCIENCE
  • Allocation: RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: NONE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
NO_INTERVENTION: Control group
EXPERIMENTAL: Low Pressure 100W sunbed
Radiation: Sunbed tanning
Invention groups undergo a 12-week tanning protocol that follows Health Canada's RED Act
EXPERIMENTAL: Low Pressure 160W sunbed
Radiation: Sunbed tanning
Invention groups undergo a 12-week tanning protocol that follows Health Canada's RED Act
EXPERIMENTAL: High Pressure sunbed
Radiation: Sunbed tanning
Invention groups undergo a 12-week tanning protocol that follows Health Canada's RED Act

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
To characterize serum 25(OH)D response to regular sunbed use, when performed according to the RED Act exposure time guidelines
Time Frame: 12 weeks
12 weeks

Secondary Outcome Measures

Outcome Measure
Time Frame
To characterize serum 25(OH)D response with respect to sunbed lamp output (100W, 160W and High Pressure).
Time Frame: 12 weeks
12 weeks
To characterize serum 25(OH)D level with respect to skin lightness.
Time Frame: 12 weeks
12 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Vitamin D Society

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

January 1, 2014

Primary Completion (ACTUAL)

May 1, 2014

Study Completion (ACTUAL)

May 1, 2014

Study Registration Dates

First Submitted

January 6, 2015

First Submitted That Met QC Criteria

January 7, 2015

First Posted (ESTIMATE)

January 8, 2015

Study Record Updates

Last Update Posted (ESTIMATE)

January 8, 2015

Last Update Submitted That Met QC Criteria

January 7, 2015

Last Verified

December 1, 2013

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • VDS-1234

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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