- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02761122
Implication of Human Papillomavirus (HPV) in Lichen Physiopathology in Human (HPVLichen) (HPVLichen)
Implication of Human Papillomavirus (HPV) in Lichen Physiopathology in Human
Lichen planus is a chronic cutaneous and mucosal disease characterized by the infiltration of cluster of differentiation (CD) CD8 T lymphocytes, localized under the basal membrane and associated with apoptosis of basal keratinocytes, suggesting a reactivity of T lymphocytes toward keratinocyte antigen(s), so far unidentified. In a recent study, the research team at Institut Pasteur has demonstrated in a peculiar clinical form of lichen planus (erosive lichen planus), that the immunogenic target of CD8 T lymphocytes could be the immunodominant peptide of Human Papilloma Virus (HPV) 16.
In line with this recent work which shows for the first time a link between HPV-16 and an autoimmune disease, erosive lichen planus, the aim of te study is to test the hypothesis that HPV could be also involved in the pathogenesis of other clinical forms of lichen, such as non erosive lichen planus or lichen sclerosus.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Lichen planus is a chronic cutaneous and mucosal disease characterized by the infiltration of cluster of differentiation (CD) CD8 T lymphocytes, localized under the basal membrane and associated with apoptosis of basal keratinocytes, suggesting a reactivity of T lymphocytes toward keratinocyte antigen(s), so far unidentified. In a recent study, the research team at Institut Pasteur has demonstrated in a peculiar clinical form of lichen planus (erosive lichen planus), that the immunogenic target of CD8 T lymphocytes could be the immunodominant peptide of Human Papilloma Virus (HPV) 16.
In line with this recent work which shows for the first time a link between HPV-16 and an autoimmune disease, erosive lichen planus, the aim of te study is to to test the hypothesis that HPV could be also involved in the pathogenesis of other clinical forms of lichen, such as non erosive lichen planus or lichen sclerosus.
Regarding erosive lichen planus, the aim is to test the cytotoxic function of the previously identified CD8 T lymphocytes specific for HPV16 E711-20.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
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Besançon, France
- Service de Dermatologie du CHU de Besançon
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Paris, France
- Service de Dermatologie de l'hôpital Saint Louis
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Reims, France
- Service de Dermatologie du CHU de Reims
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- At least 18 year-old
- Clinically or histologically confirmed lichen : Non-erosive lichen planus, Erosive lichen planus, or Sclerosus lichen
- At diagnosis of desease before treatment, or during flares of the disease, with or without intake or topical application of immunosuppressants
- Affiliated or beneficiary of a social security system
- Informed and written consent
Exclusion Criteria:
- Under 18 year-old,
- Legal protection measures,
- Inability to consent
- Pregnant or breastfeeding women.
Study Plan
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: Patients with lichen
Patients with non-erosive lichen planus, erosive lichen planus or lichen sclerosus. Human biological samples :
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
The use of the different segments of the Vbeta gene assessed by quantitative PCR, and the distribution of the different sizes of the complementarity determining regions (CDR) CDR3 by immunoscope.
Time Frame: 2 years
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In patients with a non-erosive type of lichen and with a lichen sclerosus et atrophicus, the hypothesis for oligoclonal bias in the T-cell receptor repertoire on peripheral and in situ CD4 and CD8 T lymphocytes will be tested realizing, on the 2 sorted subpopulations, a study of the use of the different segments of the Vbeta gene using quantitative Polymerase Chain Reaction (PCR) and a study of the distribution study of the different sizes of the CDR3 using immunoscope method. Depending on whether or not bias in the T-cell receptor repertoire exists, the study will be continued by looking for the same repertoire bias in situ, on injury site (skin or mucous, depending on the clinical type of lichen), and the research of clonal sequences (or clonotypes) from RNA of patients after cloning and complete sequencing. If clonotype T CD8 Vbeta3 are identified in these types of lichen, their specificity to HPV16 E711-20 wil be assessed by flow cytometry. |
2 years
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
The functionality and the cytotoxicity of CD8 Vbeta3 peripheric T lymphocytes assessed by flow cytometry.
Time Frame: 2 years
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In patients with erosive lichen planus, the functionality and the cytotoxicity of CD8 Vbeta3 peripheric T lymphocytes will be assessed showing their ability to recognize and destroy a target carrier of HPV16 E711-20 peptide by flow cytometry.
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2 years
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Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Study Director: Marie-Lise Gougeon, Institut Pasteur
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 2015-058
- ID-RCB number : 2015-A01697-42 (Other Identifier: French national registration number of the study)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
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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