A 44-week Monocentric Open Study Assessing the Efficacy and Safety of Deucravacitinib in Adults With Inflammatory Genodermatoses

Study Overview
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Brief Summary
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The goal of this clinical trial is to learn about deucravacitinib treatment in adults with inflammatory epidermal genodermatoses . The main question it aims to answer are: describe efficacity and safety of this treatment. Participants will take treatments and have to use bullets during the study period.

Detailed Description
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The patient will have 8 visits After Confirmation of inclusion criteria and no exclusion criteria, the study will be explain to the patient after signing the inform consent and be included in the study Treatment Period (Period 1); challenge period This period will be the first treatment period that will occur from 16 weeks. During this period the patient will see the doctor at the hospital, he will perform the study procedures The second period : dechallenge (period 2): All patients stop their treatment for 12 weeks. The second treatment period - rechallenge (period 3) the patient will take the treatment for a second 16 weeks period At week 44 - End of study At each visit: The investigator at each visit compliance to the treatment and adverse events, Measure vital signs and perform clinical examination. The patient will assess the different questionnaires, for the study and have blood sample

Official Title
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A 44-week Monocentric Open Study Assessing the Efficacy and Safety of Deucravacitinib in Adults With Inflammatory Genodermatoses

Conditions
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Inflammatory Epidermal Genodermatoses

Intervention / Treatment
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* Drug: deucravacitinib


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Subject has congenital skin fragility with skin and/or mucosal blisters, a clinical phenotype of EBS-sev and a laboratory confirmed diagnosis of EBS by KRT5 and/or 14 mutation (autosomal only) OR a clinical phenotype of inflammatory ichthyosis (IC) including keratinopathic ichthyosis due to KRT1/10 mutation, ECI with identified genetic mutations (TGM5, NIPAL4, ABCA12, etc…). Subject has at least a mean daily number of 4 new blisters (EBS-sev) OR an ISS > 50/128. Subject agrees not to use any topical therapies other than the investigator approved. Exclusion Criteria: Subjects with another form of ICI ie Netherton syndrome, Kid syndrome etc. Infectious/Immune-related Exclusions Medical History and Concurrent Diseases

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 99 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Intervention Model: Single Group Assignment
Interventional Model Description: challenge dechalenge rechalenge design
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: deucravacitinib treatment<br>challenge-dechallenge -rechallenge design | Drug: deucravacitinib<br>* treatment by deucravacitinib in two phases of challenge<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| efficacy of deucravacitinib | number of new blister conting every day | week 44 | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Safety of deucravacitinib treatment | record of adverse events | week 44 |