Early Diagnosis of Mycosis Fungoides (DIAPREMYF)

April 15, 2016 updated by: Assistance Publique - Hôpitaux de Paris

Evaluation of a Combination of Blood Biomarkers for the Early Diagnosis of Mycosis Fungoides

Mycosis fungoides (MF) is an epidermotropic cutaneous T cell lymphoma characterized by the accumulation of CD4+ T-lymphocytes in the skin. Early MF presents as erythematous patches and/or infiltrated plaques. The diagnosis of early MF is a major diagnostic challenge and the differential diagnosis with inflammatory dermatoses is often very difficult. The histopathological diagnosis is also difficult and delayed. Therefore, it is important to develop biomarkers and/or a combination of biomarkers in order to improve the early diagnostic of MF.

In a previous trial, investigators included 490 patients in a study aiming at identifying skin biomarkers of early MF. Several activating and inhibiting KIRs were found to be interesting for the skin diagnostic of MF, mainly KIR2DL4 and KIR3DL2. Investigators later evaluated blood biomarkers in patients with erythrodermic MF and Sezary Syndrome (SS). This French institutional study demonstrated that the identification by PCR of a combination of 4 blood markers (CD158k/KIR3DL2, PLS3/T-Plastin, Twist and NKp46) allowed a reliable diagnosis of lymphoma in erythrodermic patients. This previously published study interestingly showed that 30% to 50% of patients with early MF expressed at least one of these biomarkers in the blood (unpublished data). Other groups also recently showed that TOX can be a diagnostic tool for MF.

The aim of this study is to establishing an accurate blood diagnosis for early suspected MF by demonstrating that newly identified biomarkers or their combination [5 cutaneous KIR receptor markers (KIR2DS1, KIR2DS3, KIR3DL1, KIR2DL4, KIR3DL2) and 5 blood biomarkers (TOX, Twist-1, PLS3/T-plastin, KIR3DL2, NKp46)] are differentially expressed by patients with MF and patients with inflammatory dermatoses closely resembling MF lesions.

Statistical analysis will establish the best combination of blood biomarkers allowing the differentiation between the two groups of patients, combination that could represent a suitable diagnostic tool for early MF.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Anticipated)

620

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 Contact

Study Locations

  • France
      • Paris, France, 75010
        • Recruiting
        • Saint Louis Hospital
        • Contact:

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

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Patients with erythematous dermatitis of subacute evolution (> 15 d) or chronic evolution, in the form of patches/plaques, leading to a clinically suspected cutaneous T cell lymphoma
  • Free and informed consent signed
  • Erythematous dermatosis, sub-acute (> 15 days) or chronic, suspicious of MF
  • Lack of previous hemopathy or cutaneous or extra-cutaneous lymphoma
  • Age > 18 years
  • A skin biopsy for routine diagnostic histopathological analysis at the time of inclusion
  • With an analysis of T-cell clonality in blood and skin at the time of inclusion

Exclusion Criteria:

  • Children under 18 years
  • Sick adults under guardianship
  • Patients refusing to participate in the research protocol
  • Subjects not affiliated with the national health insurance system.

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: Diagnostic
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: investigation
Blood sampling for quantitative evaluation of nine candidate biomarkers (CD158k/KIR3DL2, KIR2DL4, KIR2DS1, KIR2DS3, KIR3DL1, NKp46, PLS3/T-Plastin, Twist and TOX) by quantitative RT-PCR.
Other: Blood sampling
Blood sampling for quantitative evaluation of nine candidate biomarkers (CD158k/KIR3DL2, KIR2DL4, KIR2DS1, KIR2DS3, KIR3DL1, NKp46, PLS3/T-Plastin, Twist and TOX) by quantitative RT-PCR.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Early MF Benign inflammatory dermatoses
Time Frame: 12 months
12 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Percentage of positivity of each marker
Time Frame: 12 months
[5 cutaneous KIR receptor markers (KIR2DS1, KIR2DS3, KIR3DL1, KIR2DL4, KIR3DL2) and 5 blood biomarkers (TOX, Twist-1, PLS3/T-plastin, KIR3DL2, NKp46)]
12 months

Collaborators and Investigators

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

Sponsor

Assistance Publique - Hôpitaux de Paris

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

November 1, 2015

Primary Completion (Anticipated)

November 1, 2017

Study Completion (Anticipated)

November 1, 2017

Study Registration Dates

First Submitted

July 20, 2015

First Submitted That Met QC Criteria

August 31, 2015

First Posted (Estimate)

September 3, 2015

Study Record Updates

Last Update Posted (Estimate)

April 18, 2016

Last Update Submitted That Met QC Criteria

April 15, 2016

Last Verified

April 1, 2016

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • K14097

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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