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Studies on skin damage by UVC at 233 nm compared to UVB in vivo

Studies on skin damage by UVC at 233 nm compared to UVB in vivo - CORSAskin

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
DRKS
Registry ID
DRKS00028055
Enrollment
10
Registered
2022-02-08
Start date
2022-02-08
Completion date
Unknown
Last updated
2025-10-06

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

Conditions

healthy subjects

Interventions

Group 1: Subjects are irradiated on the lower back with 60 mJ/cm² 233 nm Far-UVC and with an erythema tester with UVB. Temperature measurement and photo documentation is performed on the 2 irradiated

Sponsors

Charité – Universitätsmedizin Berlin,Department of Dermatology, Venerology and Allergology,Center of Experimental and Applied Cutaneous Physiology (CCP)
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: male and female volunteers =18 years without skin diseases written informed consent skin type I–III (Fitzpatrick) Informed about the goal and nature of the study no intensive sun exposure on the skin sites to be irradiated (lower back) in the 14 days prior to the examinations

Exclusion criteria

Exclusion criteria: minors breastfeeding women and women with known pregnancy known skin diseases skin type >III (Fitzpatrick) intensive sun exposure on the skin sites to be irradiated (lower back) in the 14 days prior to the examinations subjects who cannot make decisions independently

Design outcomes

Primary

MeasureTime frame
The classical skin parameters erythema formation, transepidermal water loss, skin hydration, elasticity and pH, as well as the activation state of mast cells and macrophages in the skin 24 h after Far-UVC irradiation of 60 mJ/cm² 233 nm do not change.

Secondary

MeasureTime frame
No or negligible DNA damage in the skin occurrs after Far-UVC irradiation of 60 mJ/cm² 233 nm.

Countries

Germany

Contacts

Public ContactMartina Meinke

Charité – Universitätsmedizin Berlin,Department of Dermatology, Venerology and Allergology,Center of Experimental and Applied Cutaneous Physiology (CCP)

martina.meinke@charite.deFax: +49 30 450 518244

Outcome results

None listed

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