Role of Tyrosine Kinase Lyn and Cleaved Form by Caspases in Psoriasis

NCT ID: NCT01538342

Last Updated: 2023-09-08

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

170 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-07-31

Study Completion Date

2016-07-31

Brief Summary

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Psoriasis is a chronic autoimmune disorder of the skin. In this disease, the inflammatory caspases, cysteine proteases involved in the processing of many proteins, are activated. Transgenic mice expressing the cleaved form of caspases by Lyn, a tyrosine kinase Src family, develop an inflammatory syndrome with the characteristics of human psoriasis.

To clarify the relationship between the cleaved form of Lyn by caspases and psoriasis, the investigators intend to develop a clinical study to analyze the expression, cleavage and activity of Lyn and the activation of caspases from skin biopsies of patients with this disease.

This study will be conducted on a cohort of patients with different forms of psoriasis (plaque, pustular and erythrodermic) and atopic dermatitis, another skin disorder associated with chronic inflammation. Thus, the investigators will evaluate the expression and activity of Lyn from skin lesion (L) and non-lesional (NL) from the same patient in parallel with the level of caspase activation and apoptotic inflammatory.

Thus, the investigators will verify that the cleavage by caspases of Lyn is associated specifically with psoriasis, as the investigators believe, or more generally to the skin inflammation. The investigators work would then define the cleavage by caspases of Lyn as a new potential marker of human psoriasis.

Detailed Description

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Conditions

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Psoriasis Atopic Dermatitis

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SINGLE_GROUP

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

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chronic plaque psoriasis

3 biopsies: 2 lesional and 1 non-lesional

Group Type OTHER

3 Biopsies

Intervention Type OTHER

3 biopsies: 2 lesional and 1 non-lesional

pustular psoriasis

3 biopsies: 2 lesional and 1 non-lesional

Group Type OTHER

3 Biopsies

Intervention Type OTHER

3 biopsies: 2 lesional and 1 non-lesional

erythrodermic psoriasis

3 biopsies: 2 lesional and 1 non-lesional

Group Type OTHER

3 Biopsies

Intervention Type OTHER

3 biopsies: 2 lesional and 1 non-lesional

atopic dermatitis

2 biopsies: 1 lesional and 1 non-lesional

Group Type OTHER

2 biopsies

Intervention Type OTHER

healthy patients

1 biopsy of healthy skin.

Group Type OTHER

biopsy

Intervention Type OTHER

1 biopsy ok healthy skin

Interventions

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3 Biopsies

3 biopsies: 2 lesional and 1 non-lesional

Intervention Type OTHER

2 biopsies

Intervention Type OTHER

biopsy

1 biopsy ok healthy skin

Intervention Type OTHER

Other Intervention Names

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1 lesional and 1 non-lesional

Eligibility Criteria

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Inclusion Criteria

Psoriasis arms:

* Plaque psoriasis and erythrodermic more than 10% of body surface area.
* Pustular psoriasis of at least 1% of body surface.

* Atopic dermatitis arm:Patients with atopic dermatitis has been identified and inflammatory lesions on the skin.
* Healthy arm:People not suffering from any skin disease

Exclusion Criteria

* Systemic treatment of psoriasis for at least 4 weeks and / or local treatment for at least 2 weeks at the time of study entry.
* Patient with significant infection and / or immunocompromised.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Centre Hospitalier Universitaire de Nice

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Jean-Paul ORTONNE, PU-PH

Role: STUDY_DIRECTOR

Centre Hospitalier Universitaire de Nice

Sandrine MARCHETTI, PhD

Role: STUDY_CHAIR

Institut National de la Santé Et de la Recherche Médicale, France

Marie-Aleth RICHARD, PU-PH

Role: PRINCIPAL_INVESTIGATOR

AP-HM

Carle PAUL, PU-PH

Role: PRINCIPAL_INVESTIGATOR

University Hospital, Toulouse

Locations

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Assistance Publique - Hôpitaux de Marseille

Marseille, , France

Site Status

University Hospital of Nice

Nice, , France

Site Status

University Hospital of Toulouse

Toulouse, , France

Site Status

Countries

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France

References

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Aira LE, Goncalves D, Bossowski JP, Rubio-Patino C, Chiche J, Paul-Bellon R, Mondragon L, Gesson M, Lecucq-Ottavi P, Obba S, Colosetti P, Luciano F, Bailly-Maitre B, Boyer L, Jacquel A, Robert G, Ricci JE, Ortonne JP, Passeron T, Lacour JP, Auberger P, Marchetti S. Caspase 1/11 Deficiency or Pharmacological Inhibition Mitigates Psoriasis-Like Phenotype in Mice. J Invest Dermatol. 2019 Jun;139(6):1306-1317. doi: 10.1016/j.jid.2018.11.031. Epub 2018 Dec 17.

Reference Type DERIVED
PMID: 30571969 (View on PubMed)

Related Links

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Other Identifiers

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11-API-03

Identifier Type: -

Identifier Source: org_study_id

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