An observational study in Familial Mediterranean Fever (FMF), Autoinflammation and Periodic Fever, sponsored by National Human Genome Research Institute (NHGRI). Recruiting at 5 sites in United States. Open to participants aged 2 Months to 115 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-11-09.
Sponsored by National Human Genome Research Institute (NHGRI) · Observational
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:
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 Description
This is an exploratory natural history protocol that will enroll 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 patients will be provided standard medical care follow up, with retrospective analysis of the clinical data gathered during follow up.
Objectives
Primary Objective: To discover the genetic basis of human disorders of inflammation.
Secondary Objective: To enumerate immunologic features and genotype-phenotype associations in specific inflammatory diseases.
Tertiary Objectives: To describe the clinical features of poorly characterized or newly defined disorders of inflammation, through the retrospective chart review of standard medical practice follow up and through the enrollment of selected subjects in separate, disease-specific protocols.
Endpoints
Primary Endpoints: The discovery of rare, high-penetrance genetic variants and common, low-penetrance genetic variants conferring susceptibility to inflammatory disease; the discovery of structural genomic variants (insertions, deletions, inversions, translocations, etc.) that cause human inflammatory disease; the discovery of common, low-penetrance germline variants that confer susceptibility to human inflammatory disease; and the discovery of somatic mutations that give rise to human inflammatory disease.
Secondary Endpoint: The description of immune cell populations, inflammatory mediators, gene expression profiling, epigenetic features, and ex vivo functional assays of leukocytes from subjects with specific inflammatory diseases.
Tertiary Endpoints: Given the wide range of inflammatory diseases, the endpoints will be formulated for specific conditions based on the clinical features of that condition.
61 studies on the registry are indexed under Familial Mediterranean Fever; 27 are open to participants now.
This study's planned enrollment of 5,000 is above the median of 89 across 30 observational studies indexed under Familial Mediterranean Fever.
Browse Familial Mediterranean Fever studies →National Human Genome Research Institute (NHGRI) is the lead sponsor of 203 studies on the registry; 33 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Patients with autoinflammatory disorders and unaffected family members, and healthy volunteers.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
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. Persons interested in participation may be given a screening questionnaire to determine eligibility. Questions in the screening questionnaire are important to help us determine if subjects have known autoinflammatory diseases, or if there is a high clinical suspicion of autoinflammatory disease.
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:
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:
In order to be eligible to participate in this study as a healthy volunteer, an individual must meet all of the following criteria:
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.
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Patients with auto-inflammatory disorders
Family members of patients
Healthy Volunteers
Genetic linkage in autoinflammatory dise
discovery of genetic associations to autoinflammatory disorders
Time frame: annually
Not enrolling at this site.
Not enrolling at this site.
Not enrolling at this site.
Plan to share: Yes — 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.
Supporting information: Study protocol, Analytic code
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.
Access criteria: Genomic sequences will be deposited to dbGaP following final sequence analysis and available for broad use, as determined by dbGaP usage committee.
Started Mar 1994 (actual).
How these figures are worked out, and which studies are left out of them.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
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