Study of Inflammatory Mechanisms in Epidermolysis Bullosa Simplex- Dowling Meara

Introduction: Epidermolysis Bullosa Simplex-Dowling-Meara (DM-EBS) is a rare genodermatosis characterized by spontaneous or post traumatic large cutaneous blisters. No curative treatment is actually available. Some data suggest a role of inflammation in the occurrence of blisters. The aim of this study is to study the epidermis inflammatory mechanisms in DM-EBS.

Material and methods: A first retrospective immunohistochemical study will be led on remainder skin biopsies of DM-EBS patients took for the diagnosis. A second clinical multicentric prospective study will be led on 8 patients older than 1 year with severe DM-EBS. After informed written consent, they will answer to a standardized questionnaire. In case of flare of the disease, the liquid and the top of the blisters will be took. Samples will be analyzed in the Pr Nicolas 851 INSERM unit. After centrifugation of the liquid blisters, the repartition of inflammatory cells will be evaluated by Fluorescence Activated Cell Sorting on the pellet. Markers of inflammation will be evaluated on the surnageant with Luminex® technical with a multiplex targeting cytokines and chemokines. An immuno-histochemic analysis in association with a quantitative PCR will be made on the top of the blisters. If unknown, genotypic study will be made.

Perspectives: A better comprehension of physiopathological mechanisms in DM-EBS could offer new therapeutic ways.

Study Overview

Study Type

Interventional

Enrollment (Actual)

6

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Nice, France, 06200
        • Hôpital Archet 2

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

1 year and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • male or female
  • older than 1 year-old
  • severe Dowling Meara epidermolysis bullosa (more than 2 blisters per day)
  • systematic written informed consent
  • child consent
  • affiliated to french social security

Exclusion Criteria:

  • younger than one year-old
  • no consent
  • non affiliated to french social security
  • participation to another clinical trial within 3 months ago
  • intercurrent disease justifying the withdrawal of the study
  • own patient decision to stop the study, withdrawal of informed consent

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Basic Science
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: DM-EBS
the liquid and the top of blisters will be took.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Markers of inflammation in epidermis in patients with severe DM-BS
Time Frame: Baseline
Baseline

Secondary Outcome Measures

Outcome Measure
Time Frame
clinical characterization of DM-EBS Genotype-phenoty
Time Frame: Baseline
Baseline

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

March 1, 2012

Primary Completion (Actual)

March 1, 2012

Study Completion (Actual)

October 1, 2013

Study Registration Dates

First Submitted

March 15, 2012

First Submitted That Met QC Criteria

March 15, 2012

First Posted (Estimate)

March 16, 2012

Study Record Updates

Last Update Posted (Estimate)

July 29, 2014

Last Update Submitted That Met QC Criteria

July 28, 2014

Last Verified

March 1, 2012

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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