Effect of an anti-pigmentation formulation containing thiamidol on melanin concentration in the epidermis in vivo

Effect of an anti-pigmentation formulation containing thiamidol on melanin concentration in the epidermis in vivo - Antipigment_2

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

DRKS

Registry ID

DRKS00040640

Enrollment

Registered

2026-06-12

Start date

2026-06-12

Completion date

Unknown

Last updated

2026-06-22

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

Conditions

L81

Interventions

Group 1: Two blinded formulations are applied to the skin of participants with pigment spots or hyperpigmentation in two areas (the right and left arms). Each area covers 16 cm². The areas are marked

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: - Pigment spots on the arms - Sparse hair in the areas to be measured - Informed about the study's objectives and the nature of the examinations - Written informed consent to participate

Exclusion criteria

Exclusion criteria: - Children - Individuals who have not provided their informed consent in writing - Individuals who are unable to make decisions on their own behalf

Design outcomes

Primary

Measure	Time frame
Measurement of melanin using two-photon microscopy (2PM-FLIM).	—

Secondary

Measure	Time frame
Quantification of melanin across an area of mm² at the basal cell level.	—

Countries

Germany

Contacts

Public ContactMartina Meinke

Charité - Universitätsmedizin Berlin

martina.meinke@charite.de+4930450518235

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Jun 29, 2026