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Scratching the surface: study explores skin Irritation's role in psoriasis
NCT ID NCT06021405
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study aimed to understand why psoriasis and lichen planus often appear on skin that is rubbed or irritated, like from tight clothing. Researchers planned to irritate a small patch of skin in people with these conditions and healthy volunteers, then take skin samples to study the inflammation. The study was withdrawn before enrolling any participants, so no results are available.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Started
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Sep 2025
- Finished
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Sep 2025
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 70 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Dermatologist diagnosed psoriasis (group psoriasis), lichen planus (group lichen planus) or no skin disease (group healthy controls) * Subject is capable of giving informed consent * Signed informed consent Exclusion Criteria: * Use of systemic immunosuppressive/immunmodulating agents in the last three months * Use of topical anti-inflammatory treatment in the last 7 days in the area of sampling. * Phototherapy in the last 4 weeks * Active or recurrent serious bacterial, fungal or viral infection at the time of enrollment by patient history, including patients with Human Immunodeficiency Virus (HIV) infection, Hepatitis B and Hepatitis C infection, active or untreated latent tuberculosis. * Female patients of childbearing potential who are pregnant or breast feeding or planning a pregnancy during the duration of the trial and/or not practicing acceptable birth control for the duration of the trial * Known or suspected non-compliance, drug or alcohol abuse, * Inability to follow the procedures of the study, e.g. due to language problems, psychological disorders, dementia, etc. of the participant, * Previous enrolment into the current study, * Enrolment of the investigator, his/her family members, employees and other dependent persons.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
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