Characterization of a Functional Test for Mediterranean Family Fever Screening - 2 (DEPIST-FMF 2)

July 18, 2024 updated by: Hospices Civils de Lyon

Familial Mediterranean fever (FMF) is the most common auto-inflammatory disease (prevalence: 1-5 / 10,000 inhabitants). It is caused by mutations in the MEFV gene, which encodes variants of the Pyrine inflammasome. Inflammasomes are protein complexes of the innate immunity that produce pro-inflammatory cytokines (interleukin-1β).

In vitro, our preliminary results demonstrated that the activation of the inflammatory pyrine (measured by the concentration of interleukin-1β) by kinase inhibitors is significantly increased in FMF patients compared to healthy subjects. Furthermore, a measurement of cell death gave significant results in differentiating the patients from the controls.

The performance of this functional has been tested, fast and simple diagnostic test on common mutations and wish to assess its characteristics for MEFV mutations.

The investigators hypothesize that this quick and simple functional test can serve as a diagnostic tool for FMF and can quantitatively discriminate against patients with different mutations (genotypes).

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
160

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 Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • France
      • Bron, France, 69677
        • Recruiting
        • Hôpital Femme-Mère-Enfant
        • Contact:
      • Le Chesnay, France, 78157
        • Not yet recruiting
        • Ch de Versailles - Hopital Andre Mignot
        • Contact:
      • Lyon, France, 69317
        • Recruiting
        • Hôpital de la Croix-Rousse
        • Contact:
      • Lyon, France, 69008
        • Not yet recruiting
        • Hopital Edouard Herriot
        • Contact:
      • Montpellier, France, 34295
      • Nîmes, France, 30029
        • Not yet recruiting
        • Service de Pédiatrie - CHU de Nîmes - Hôpital Carémeau
        • Contact:
        • Principal Investigator:
          • Tu Anh TRAN, MD
      • Paris, France, 75020
        • Recruiting
        • Hopital Tenon
        • Contact:
      • Pierre-Bénite, France, 69495

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

4 years and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Sampling Method

Probability Sample

Study Population

This study will involve 80 patients with Familial Mediterranean fever, presenting a previous genetic analysis finding at least one mutation of the MEFV gene, considered pathogenic or possibly pathogenic (60 heterozygotes or complex mutations and 20 homozygotes). The controls will be 80 healthy subjects (French national medical and scientific center (INSERM) and French blood bank (EFS) convention).

Description

Inclusion Criteria:

  • Children 4 years of age or older or adults
  • Having a clinical picture compatible with an FMF and a previous genetic analysis finding at least one mutation of the MEFV gene pathogenic or possibly pathogenic for the FMF group;
  • Newly diagnosed or in the process of follow-up (with no time limit or evolutionary criteria);
  • During specific or non-specific treatment of the disease or without treatment;
  • For whom a blood test is planned as part of routine care;
  • Whose informed non-opposition has been collected (or parental non-opposition in the case of a minor patient);

Exclusion Criteria:

  • Person under legal protection or under the protection of justice or any other protective measures;
  • Person out of state to express their consent;
  • Person in emergency situation, vital or not;
  • Known infections with HIV and / or HBV and / or HCV;

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

  • Observational Models: Case-Control
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Children or adult with Familial Mediterranean fever

Considering 5 clearly pathogenic (homozygous) genotypes, 15 possibly pathogenic genotypes (5 pathogenic mutations in the heterozygous state, 10 possibly pathogenic mutations in the homozygous or heterozygous state), a number of 80 patients will be necessary to cover the correlation analysis genotype / phenotype.

The study does not change the usual course of care. Only an additional blood sample (4 ml for children under 12 and 10 ml for children 12 and over and adults) during a planned blood test is specific to research (no risk added). The benefit / risk balance therefore remains unchanged with regard to the usual care of patients.
Biological: one additional blood sample during a planned blood test
The study does not change the usual course of care. Only an additional blood sample (4 ml for children under 12 and 10 ml for children 12 and over and adults) during a planned blood test is specific to research (no risk added). The benefit / risk balance therefore remains unchanged with regard to the usual care of patients.
Healthy blood donor

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Quantification of interleukin-1β
Time Frame: At inclusion

quantification of the capacity of the concentration of interleukin-1β measured in the supernatants of primary monocytes in response to kinase inhibitors, to discriminate between FMF subjects among themselves according to genotypes, and among control subjects (healthy subjects).

All samples will be analysed in the INSERM Unit 1111 - CIRI Centre International de Recherche en Infectiologie - Lyon - Team Inflammasome, bacterial infections and autoinflammation.
At inclusion

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Hospices Civils de Lyon

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 (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
July 21, 2021

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
July 1, 2029

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
July 1, 2029

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
July 16, 2020

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 16, 2020

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
July 20, 2020

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
July 19, 2024

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 18, 2024

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
July 1, 2024

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 69HCL20_0236

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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