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OpenTrials
Completed

NCT Number: NCT00516867

Does Sunbed Radiation With Mainly UVA Provoke Cutaneous Vitamin D Synthesis in Humans?

We would investigate in a controlled, randomized open study in the winter season: 1) If serum levels of vitamin D (25(OH)D) increase in subjects treated with sunbed with sunlamps emitting mainly UVA and only 0·5% or 1·4% UVB compared to non-sunbed treated controls 2) If yes, are the 25(OH)D serum levels then dependent on the UVB dose?

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Key information

Conditions

Healthy

Age range

18 year and older

Sex eligibility

Female

Study type

Interventional

Phase

Not applicable

Primary location

Bispebjerg Hospital

Copenhagen, DK-2000 NV, Denmark

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Healthy
  • Females
  • Above 50 years
  • Younger with serum concentration of 25(OH)D below 50nmol/l

Exclusion criteria

  • No sunbed use last ½ year
  • No sun holiday last ½ year
  • No intake of vitamin D above 10 microgram/day

Treatment and study plan

UV radiation

Radiation

UV radiation with 99.5% UVA and 0.5%UVB

Primary outcomes

  1. Serum concentration of 25(OH)D

    Time frame: 18 Days

Secondary outcomes

  1. Serum concentration of PTH

    Time frame: 18 Days

Sponsors and collaborators

Lead sponsor

Bispebjerg Hospital

Other

Collaborators

  • Hvidovre University Hospital

Registry information

Official study title

Sunbed Radiation Provoke Cutaneous Vitamin D Synthesis in Humans, a Randomized Controlled Trial

Important dates

Study start
2006
Study completion
2006
First posted
Aug 16, 2007
Registry last updated
Aug 16, 2007

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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