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Synthesis of vitamin-D3 in the skin after UV-radiation under various conditions (spectrum, intensity of radiation, dose, skin area) with regard to radiation protection requirements and sunblock application.

Synthesis of vitamin-D3 in the skin after UV-radiation under various conditions (spectrum, intensity of radiation, dose, skin area) with regard to radiation protection requirements and sunblock application.

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
DRKS
Registry ID
DRKS00009001
Enrollment
120
Registered
2016-01-07
Start date
2012-01-02
Completion date
Unknown
Last updated
2025-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

vitamin D deficiency in obese E55

Interventions

Group 1: UV radiation in 12 obese patients with Waldmann GH-8 ST with a cumulated dose of 70J/m2 (0.28MED). Within one week three sessions were performed (Monday, Wednesday, Friday), radiation time va

Sponsors

Charité Campus Charité Mitte
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: skin type II, III

Exclusion criteria

Exclusion criteria: skin diseases, renal failure, autoimmune diseases, previous stay in country with high sunlight radiation, oral vitamin D intake, or solarium visits within the last six months

Design outcomes

Primary

MeasureTime frame
Increase in 25-OH-vitamin D3 serum level between baseline (day 1) and follow-up (day 8).—

Secondary

MeasureTime frame
Increase in 1,25-OH-vitamin D3 serum level between baseline (day 1) and follow-up (day 8).—

Countries

Germany

Contacts

Public ContactAlexander Obbarius

Charité Campus Charité Mitte

psychosomatik@charite.de030450553002

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026