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Immunogenetic Mechanisms in Behcet's Disease

This study is currently recruiting participants. (see Contacts and Locations)
Verified January 6, 2017 by National Institutes of Health Clinical Center (CC)
Information provided by (Responsible Party):
National Institutes of Health Clinical Center (CC) ( National Eye Institute (NEI) ) Identifier:
First received: April 22, 2010
Last updated: April 21, 2017
Last verified: January 6, 2017


- Uveitis, the inflammation of the interior of the eye, is responsible for numerous new cases of legal blindness every year. Uveitis can be caused by Beh(SqrRoot)(Beta)et s disease (BD), a chronic inflammatory disorder that can affect the eye, mucous membranes, and other body organs such as the joints, intestinal tract, blood vessels, and central nervous system.


The purpose of this study is to see how genes affect Beh(SqrRoot)(Beta)et s disease and if there are differences in Beh(SqrRoot)(Beta)et s disease among people of different backgrounds.


  • Individuals who have a diagnosis of BD and are enrolled in another NIH study.
  • Individuals who are willing to donate blood for the purposes of this research study and who are willing to have their blood stored for possible future/other research purposes.


  • As part of the study, blood samples will be drawn from participants when an exacerbation in disease activity occurs and before and after any significant change in treatment for BD.
  • No treatments will be provided in this study.

Behcet's Disease

Study Type: Observational
Study Design: Observational Model: Case-Control
Time Perspective: Prospective
Official Title: Immunogenetic Mechanisms in Behcet's Disease

Resource links provided by NLM:

Further study details as provided by National Institutes of Health Clinical Center (CC):

Primary Outcome Measures:
  • Establishing evidence for serum biomarkers associated with BD and establishing demethylation differences between ocular and non-ocular BD participants and controls. [ Time Frame: Ongoing ]

Secondary Outcome Measures:
  • To explore associations between disease severity and treatment response with observed epigenetic modifications and biomarkers. [ Time Frame: Ongoing ]

Estimated Enrollment: 200
Study Start Date: April 14, 2010
Detailed Description:

Uveitis is responsible for approximately 30,000 cases of new legal blindness in the United States and 2.8-10% of all cases of blindness. Beh(SqrRoot)(Beta)et s disease (BD) is a chronic relapsing multisystem inflammatory disorder of unknown etiology that is characterized by intraocular inflammation, oral and mucosal ulcerations, cutaneous lesions and inflammation that may affect other body organs such as the joints, intestinal tract, epididymis, blood vessels and the central nervous system (2). The need for a safer and more effective therapy for patients with ocular manifestations of BD refractory to or intolerant of systemic immunosuppressive therapy warrants further investigation. Reports define a specific role for interleukin (IL)-17A in the pathogenesis of Beh(SqrRoot)(Beta)et s disease.

This protocol will evaluate immune mediators including cytokine profiles (soluble and intracellular), lymphocyte phenotyping and regulatory T-cells in participants with BD. Epigenetic modifications will also be studied.

Additionally, it has been suggested that American/Western BD patients may have different disease characteristics than their Mediterranean counterparts. The disease characteristics of American/Western and Mediterranean BD patients will be compared and evaluated. Blood samples from BD participants that have participated in other NIH protocols where participants consented for other or future use of samples has been obtained will be collected (particularly from current participants of NIH protocol 03-AR-0173 in which NEI is a collaborator). In summary, the results will be analyzed with respect to disease in different ethnic groups, and clinical features of the disease (e.g., ocular vs. non-ocular involvement, active vs. quiescent disease).

Anonymous blood samples (matched for race, age and sex) will be obtained from the NIH clinical center (CC) blood bank and will be compared to the diseased samples.


Ages Eligible for Study:   Child, Adult, Senior
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

One of the following must be true:

  • Participants must have a diagnosis of BD according to the International Study Group for BD criteria or modified Japanese criteria, be enrolled in another NIH study and be willing to donate their blood for the purposes of this research study.
  • Participants must be willing to have their blood stored for future/other research.


Eligible participants who do not wish to donate their blood sample or undergo a blood draw for the purposes of this research study.

  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01109433

Contact: Dominic Obiyor, R.N. (301) 435-4556
Contact: Hatice N Sen, M.D. (301) 435-5139

United States, Maryland
National Institutes of Health Clinical Center, 9000 Rockville Pike Recruiting
Bethesda, Maryland, United States, 20892
Contact: For more information at the NIH Clinical Center contact Patient Recruitment and Public Liaison Office (PRPL)    800-411-1222 ext TTY8664111010   
Sponsors and Collaborators
National Eye Institute (NEI)
Principal Investigator: Hatice N Sen, M.D. National Eye Institute (NEI)
  More Information

Additional Information:
Responsible Party: National Eye Institute (NEI) Identifier: NCT01109433     History of Changes
Other Study ID Numbers: 100093
Study First Received: April 22, 2010
Last Updated: April 21, 2017

Keywords provided by National Institutes of Health Clinical Center (CC):
Behcet's Disease
Intermediate Uveitis

Additional relevant MeSH terms:
Behcet Syndrome
Uveal Diseases
Eye Diseases
Mouth Diseases
Stomatognathic Diseases
Uveitis, Anterior
Vascular Diseases
Cardiovascular Diseases
Hereditary Autoinflammatory Diseases
Genetic Diseases, Inborn
Skin Diseases, Genetic
Skin Diseases
Skin Diseases, Vascular processed this record on April 28, 2017