Objective measurement of skin pigmentation with colorimetry and multispectral imaging

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study will collect objective skin pigmentation data using tools such as colorimetry, multispectral imaging, melanin index measurements, and line-field confocal optical coherence tomography. Participants include healthy volunteers and patients with skin conditions, all aged 18 or older and able to understand Dutch or English. Data will be gathered at Leiden University Medical Center and compared across skin tones and clinical presentations to explore consistent measurement approaches. Exclusion criteria include extensive tattoos or lesions covering more than half the body, recent intense sun exposure, or recent use of self-tanner.

Why it matters

Who can join: the full rules

Inclusion Criteria:-

* Age ≥ 18 years
* Ability to understand oral and written Dutch or English

Exclusion Criteria:

For study cohort #1 (Healthy volunteers):

* Extensive tattoos covering \>50% of the total body area
* Recent extensive sun exposure (e.g. sun tanning booth or stay in a tropical country) in the last 3 weeks
* Use of self-tanner products in the last 3 weeks

For study cohort #2 (Patients):

* Extensive tattoos covering \>50% of the total body area
* Extensive skin lesions covering \>50% of the total body area
* Recent extensive sun exposure (e.g. sun tanning booth or stay in a tropical country) in the last 3 weeks
* Use of self-tanner products in the last 3 weeks

Where it's running

• Leiden University Medical Center
  Leiden, Leiden, Netherlands Recruiting

Study contacts

• Study coordinator: Deepak M.W. Balak
• Email: d.m.w.balak@lumc.nl
• Phone: +31715296273

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.