Familial Mediterranean Fever and Related Disorders: Genetics and Disease Characteristics

An Exploratory Study of the Genetics, Pathophysiology, and Natural History of Autoinflammatory Diseases

This study is designed to explore the genetics and pathophysiology of diseases presenting with intermittent fever, including familial Mediterranean fever, TRAPS, hyper-IgD syndrome, and related diseases.

The following individuals may be eligible for this natural history study: 1) patients with known or suspected familial Mediterranean fever, TRAPS, hyper-IgD syndrome or related disorders; 2) relatives of these patients; 3) healthy, normal volunteers 7 years of age or older.

Patients will undergo a medical and family history, physical examination, blood and urine tests. Additional tests and procedures may include the following:

  1. X-rays
  2. Consultations with specialists
  3. DNA sample collection (blood or saliva sample) for genetic studies. These might include studies of specific genes, or more complete sequencing of the genome.
  4. Additional blood samples a maximum of 1 pint (450 ml) during a 6-week period for studies of white cell adhesion (stickiness)
  5. Leukapheresis for collecting larger amounts of white cells for study. For this procedure, whole blood is collected through a needle in an arm vein. The blood flows through a machine that separates it into its components. The white cells are removed and the rest of the blood is returned to the body through another needle in the other arm.

Patients may be followed approximately every 6 months to monitor symptoms, adjust medicine dosages, and undergo routine blood and urine tests. They will receive genetic counseling by the study team on the risk of having affected children and be advised of treatment options.

Participating relatives will undergo a medical and family history, possibly with a review of medical records, physical examination, blood and urine tests. Additional procedures may include a 24-hour urine collection, X-rays, and consultations with medical specialists. A DNA sample (blood or saliva) will also be collected for genetic studies. Additional blood samples of no more than 550 mL during an 8-week period may be requested for studies of white cell adhesion (stickiness).

Relatives who have familial Mediterranean fever, TRAPS, or hyper-IgD syndrome will receive the same follow-up and counseling as described for patients above.

Normal volunteers and patients with gout will have a brief health interview and check of vital signs (blood pressure and pulse) and will provide a blood sample (up to 90 ml, or 6 tablespoons). Additional blood samples of no more than 1 pint over a 6-week period may be requested in the future....

Study Overview

Detailed Description

This is an exploratory natural history protocol that enrolls patients with known or as yet undiagnosed disorders of inflammation. Blood, saliva, or buccal samples will be collected for genetic analysis, blood samples will be obtained for immunologic and other functional studies, a small number of subjects may undergo skin biopsy, leukapheresis, or bone marrow aspiration and biopsy, and some subjects will be provided standard medical care follow up, with retrospective analysis of the clinical data gathered during follow up. The primary objective is to discover the genetic basis of human disorders of inflammation. The secondary objective is to enumerate immunologic features and genotype-phenotype associations in specific autoinflammatory diseases. The tertiary objective is to describe the clinical features of poorly characterized or newly defined disorders of inflammation. This protocol provided clinical support for the identification of the gene mutated in familial Mediterranean fever (FMF), the discovery of the TNF receptor-associated periodic syndrome (TRAPS), the identification of NLRP3 mutations in the neonatal-onset multisystem inflammatory disease (NOMID), the discovery of the deficiency of the IL-1 receptor antagonist (DIRA), and the proposal of the now widely accepted concept of autoinflammatory disease. During the last decade the protocol has provided the clinical foundation for the discovery of ten more monogenic autoinflammatory diseases, seven of which were previously unrecognized as distinct diseases. The protocol has also permitted numerous studies delineating the mechanisms of autoinflammation and its connections with the human innate immune system. The work catalyzed by this protocol has provided the conceptual basis for a number of targeted therapies. During the next decade the objective will be to utilize cutting edge genomic technologies to further advance discovery.

Study Type

Observational

Enrollment (Estimated)

5000

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 Backup

Study Locations

    • District of Columbia
      • Washington, District of Columbia, United States, 20010
        • Completed
        • Childrens National Medical Center
    • Maryland
      • Baltimore, Maryland, United States, 21205
        • Completed
        • Johns Hopkins University
      • Bethesda, Maryland, United States, 20892
        • Recruiting
        • National Institutes of Health Clinical Center
        • Contact:
          • NIH Clinical Center Office of Patient Recruitment (OPR)
          • Phone Number: TTY dial 711 800-411-1222
          • Email: ccopr@nih.gov
      • Bethesda, Maryland, United States, 20301
        • Completed
        • Walter Reed National Medical Center
    • Pennsylvania
      • Pittsburgh, Pennsylvania, United States, 15261
        • Not yet recruiting
        • University of Pittsburgh
        • 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

2 months and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Sampling Method

Non-Probability Sample

Study Population

Patients with autoinflammatory disorders and unaffected family members, and healthy volunteers.

Description

  • INCLUSION CRITERIA:

There are three populations that will be included in this study: subjects with known or suspected autoinflammatory diseases, family members of subjects with known or suspected autoinflammatory diseases, and healthy controls. In order to be eligible to participate in this study as a subject with known or suspected autoinflammatory disease, an individual must meet all of the following criteria:

  1. Stated willingness to participate in study procedures (which at the very least includes providing a mail-in sample for genetic analysis);
  2. Regardless of gender, at least one month of age;
  3. A medical history that, in the expert opinion of the study team, is consistent with the possibility of autoinflammatory disease; and
  4. Ability of the subject, parents (in the case of children), or Legally Authorized Representative to understand and the willingness to sign a written informed consent document.

In order to be eligible to participate in this study as a family member of a subject with known or suspected autoinflammatory disease, an individual must meet all of the following criteria:

  1. Stated willingness to participate in study procedures (which at the very least includes providing a mail-in sample for genetic analysis);
  2. Regardless of gender, at least one month of age;
  3. Relationship, either by blood or marriage, to an individual enrolled or about to be enrolled in the study with known or suspected autoinflammatory disease;
  4. Likelihood, in the expert opinion of the study team, that analysis of a sample from the individual would advance genetic or functional analysis of the affected relative s possible autoinflammatory condition; and
  5. Ability of the subject, parents (in the case of children), or Legally Authorized Representative to understand and the willingness to sign a written informed consent document.

In order to be eligible to participate in this study as a healthy volunteer, an individual must meet all of the following criteria:

  1. Stated willingness to participate in study procedures for healthy volunteers;
  2. Regardless of gender, at least one year old, and not pregnant (by history of a missed menstrual period);
  3. Likelihood, in the expert opinion of the study team, that a sample from the individual would advance the functional analysis of an autoinflammatory condition under study; and
  4. Ability of the subject or parents (in the case of children) to understand and the willingness to sign a written informed consent document.

EXCLUSION CRITERIA:

For any of the three categories of subjects, an individual will be excluded from participation in this study if he or she has a medical condition that would, in the opinion of the investigators, confuse the interpretation of the study.

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: Cohort
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort
Healthy Volunteers
Affected
Patients with auto-inflammatory disorders
Family Members
Family members of patients

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Genetic linkage in autoinflammatory dise
Time Frame: annually
discovery of genetic associations to autoinflammatory disorders
annually

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Daniel L Kastner, M.D., National Human Genome Research Institute (NHGRI)

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the 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 (Actual)

March 10, 1994

Study Registration Dates

First Submitted

November 3, 1999

First Submitted That Met QC Criteria

November 3, 1999

First Posted (Estimated)

November 4, 1999

Study Record Updates

Last Update Posted (Actual)

April 17, 2024

Last Update Submitted That Met QC Criteria

April 16, 2024

Last Verified

March 26, 2024

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

.Individual genomic sequencing data and corresponding phenotype data will be deposited in dbGaP as part of the study's Genomic Data Sharing Plan. Non-genomic and/or phenotypic individual data will not be deposited in shared databases for broad research use.

IPD Sharing Time Frame

Genomic Sharing Plan in effect since 2018 with genomic data deposited to dbGaP for broad availability within six months of final data analysis of each genomic sequence. No end date of data availability through dbGaP.

IPD Sharing Access Criteria

Genomic sequences will be deposited to dbGaP following final sequence analysis and available for broad use, as determined by dbGaP usage committee.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • ANALYTIC_CODE

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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