Clinical trial Recruiting at 1 site Observational Ages 18 and up

Biomarkers that predict how skin-disease treatments will work

Official title: Identification Des Marqueurs Biologiques cutanés et Sanguins prédictifs de réponse Aux Traitements systémiques au Cours Des Maladies cutanées Inflammatoires Chroniques

Run by Assistance Publique - Hôpitaux de Paris · NCT06599411 · Data updated 2026-11-12

Researchers are testing blood and skin markers to see if they can forecast which patients with inflammatory skin diseases will respond to systemic treatments over a year.

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment830 (estimated)
SponsorAssistance Publique - Hôpitaux de Paris
Academic / other
Locations1 site (Paris)
StatusRecruiting
StartedOctober 20, 2025
Main results expectedNovember 20, 2035
Study endsOctober 20, 2045
Registry record updatedJune 12, 2026
Trial IDNCT06599411 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults with moderate to severe atopic dermatitis, psoriasis, hidradenitis suppurativa, lichen planus, cutaneous lupus, and related conditions, plus healthy controls with skin remnants after plastic surgery.

Probably not a fit

Patients without the identified prognostic markers or with conditions outside the included spectrum may see no targeted benefit from this biomarker study.

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 aims to identify cellular, molecular, and microbiological factors that predict treatment response at 1 year across several inflammatory skin diseases. It will collect skin samples, blood, and possibly other data from adults with moderate to severe conditions and compare them to healthy controls who have had skin surgery. The study also looks at long-term factors related to disease progression and drug safety over up to 10 years. Findings could guide personalized treatment decisions and inspire new therapeutic targets.

Why it matters

Potential benefit: If successful, patients may receive more tailored and effective treatment plans based on their biomarker profile.

How similar studies have gone: Prior studies in inflammatory skin diseases have identified biomarkers that correlate with treatment response, supporting the potential for meaningful findings here.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

Patients:

* Age\>18 years
* Informed consent signed by the patient
* Diagnosis of moderate to severe chronic inflammatory skin disease (IGA score 3 or 4) including: atopic dermatitis, psoriasis, hidradenitis suppurativa, lichen planus, cutaneous lupus, dermatomyositis, cutaneous scleroderma (=morphea), neutrophilic dermatosis, cutaneous granulomatosis, cutaneaous vasculitis, autoimmune bullous dermatosis
* Or diagnosis of active leprosy (tuberculoid, lepromatous, reversion type 1, reversion type 2, hypersensitivity type 3), excluding pure neurological leprosy. Classification into 5 stages according to the Ridley and Jopling classification \[1\], Reversion reaction (type 1 reaction) and leprous erythema nodosum (type 2 reaction).

Healthy controls :

* Age\>18 years
* Plastic surgery patients who have had any type of surgery resulting in healthy skin remnants
* Informed consent signed by the patient
* Absence of known cutaneous inflammatory disease.

Exclusion Criteria:

* Under guardianship or curatorship
* Pregnant or breastfeeding woman
* Lack of affiliation with a social security system
* Current systemic treatment with immunosupressant (including corticosteroid therapy) or an immunomodulator or received within the last 3 months.

Where it's running

  • Hôpital Saint Louis
    Paris, France
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

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.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.