Clinical trial Recruiting at 1 site Observational Ages 18 and up

Analyzing immune cells in psoriasis skin during IL-23 therapy

Official title: Analysis of the Immune Infiltrate in Lesional Skin During Anti-interleukin 23 (IL-23) Therapy in Patients With Moderate-severe Plaque Psoriasis

Run by Fondazione Policlinico Universitario Agostino Gemelli IRCCS · NCT06792487 · Data updated 2026-11-12

This study is looking at skin samples from psoriasis patients who are not responding well to IL-23 therapy to see what immune cells might be causing their symptoms to come back.

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment20 (estimated)
SponsorFondazione Policlinico Universitario Agostino Gemelli IRCCS
Academic / other
Locations1 site (Rome, Lazio)
StatusRecruiting
StartedSeptember 4, 2024
Main results expectedSeptember 1, 2026
Study endsJanuary 1, 2027
Registry record updatedJanuary 24, 2025
Trial IDNCT06792487 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are individuals with moderate to severe psoriasis who have been on anti-IL-23 therapy for at least six months and have experienced treatment-resistant lesions or flare-ups.

Probably not a fit

Patients who have achieved a complete response to anti-IL-23 therapy without any resistant plaques or flare-ups will not benefit from this 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 focuses on patients with moderate to severe psoriasis who are undergoing treatment with an anti-interleukin 23 (IL-23) biologic drug. The aim is to analyze skin biopsies from areas of the skin that are resistant to treatment or have flared up during therapy. By examining the immune infiltrate in these resistant plaques, the study seeks to identify the cellular sources of key cytokines that may contribute to disease recurrence. This research could provide insights into the mechanisms behind treatment resistance in psoriasis.

Why it matters

Potential benefit: If successful, this study could lead to improved understanding and management of psoriasis, particularly for patients experiencing treatment resistance.

How similar studies have gone: While studies on IL-23 blockade have shown effectiveness, this specific approach of analyzing immune infiltrates in resistant psoriasis lesions is novel and has not been extensively tested.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* moderate-severe psoriasis PASI\>10
* anti IL 23 biologic therapy for at least 6 months (for the group under treatment)
* during therapy at least one area resistant to treatment or at least one flare of disease (for the group under treatment)
* patients able to express informed consent

Exclusion Criteria:

* patients unable to express informed consent
* patients with complete response to anti IL23, without resistant plaques or disease flare-ups

Where it's running

  • Fondazione Policlinico Universitario A. Gemelli IRCCS, UOC Dermatologia
    Rome, Lazio, Italy
    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.