Protocol Details

Screening Protocol for Genetic Diseases of Lymphocyte Homeostasis and Programmed Cell Death

This study is currently recruiting participants.

Summary | Eligibility | Citations | Contacts

Summary

Number	06-I-0015
Sponsoring Institute	National Institute of Allergy and Infectious Diseases (NIAID)
Recruitment Detail	Type: Participants currently recruited/enrolled Gender: Male & Female Min Age: N/A Max Age: N/A
Referral Letter Required	Yes
Population Exclusion(s)	None
Special Instructions	Currently Not Provided
Keywords	Apoptosis; T-cell; Autoimmunity; Immunodeficiency; B-Cell
Recruitment Keyword(s)	Inherited Lymphhocyte Homeostasis; Genetic Disease
Condition(s)	Lymphocyte Homeostasis; Genetic Diseases
Investigational Drug(s)	None
Investigational Device(s)	None
Intervention(s)	None
Supporting Site	National Institute of Allergy and Infectious Diseases

This study will determine the biochemical and genetic causes of inherited immune diseases affecting lymphocyte homeostasis. Lymphocytes are a type of white blood cell that fights infections. Normally, the body keeps a precise balance in which lymphocyte growth is matched by lymphocyte death. People with constantly enlarged lymph nodes or spleen, along with autoimmune disease, immunodeficiency, lymphoma, or other immune problems affecting lymphocytes may have an abnormality of the immune system in the cell growth and cell death processes that regulate lymphocyte homeostasis.

Patients who have, or are suspected of having, an inherited lymphocyte homeostasis or programmed cell death susceptibility syndrome may be eligible for this study. Relatives of patients are also included.

Participants' (patients and relatives) medical records are reviewed and blood samples are drawn for studies to identify genes involved in immune disorders. Tissues that have been removed from patients for medical reasons, such as biopsied tissues, may be examined for tissue and DNA studies. Relatives are studied to determine if some of them may have a very mild form of lymphocyte homeostasis disorder.

Patients who have an immune problem that the researchers wish to study further will be invited to donate additional blood samples at irregular intervals (at least once a year) and to provide an update of their medical records at the same time.

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Eligibility

INCLUSION CRITERIA:

Patients known to have or suspected of having an inherited lymphocyte homeostasis or programmed cell death susceptibility syndrome will be eligible for enrollment. In the latter case, because of the intensive time and labor required for research laboratory testing, patients will be enrolled only if in the opinion of the investigator there is a high index of suspicion.

Blood relatives of enrolled patients will be eligible for enrollment.

There will be no limit as to age, sex, race or disability.

EXCLUSION CRITERIA:

The presence of an acquired abnormality, such as HIV, cytotoxic chemotherapy, or malignancy may be grounds for possible exclusion if, in the opinion of the investigator, the presence of such a disease process interfered with evaluation.

Severely debilitated health status or poor venous access may also preclude obtaining adequate specimens for analysis.

Within the limits of maximal acceptable blood draw volumes and minimum requirement for core laboratory tests (9 ml of blood for V.A.2a and b), the cutoff weight for infants permitted in this protocol is 3 kg and above.

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Citations:

Straus SE, Sneller M, Lenardo MJ, Puck JM, Strober W. An inherited disorder of lymphocyte apoptosis: the autoimmune lymphoproliferative syndrome. Ann Intern Med. 1999 Apr 6;130(7):591-601.

Sneller MC, Wang J, Dale JK, Strober W, Middelton LA, Choi Y, Fleisher TA, Lim MS, Jaffe ES, Puck JM, Lenardo MJ, Straus SE. Clincal, immunologic, and genetic features of an autoimmune lymphoproliferative syndrome associated with abnormal lymphocyte apoptosis. Blood. 1997 Feb 15;89(4):1341-8.

Wang J, Zheng L, Lobito A, Chan FK, Dale J, Sneller M, Yao X, Puck JM, Straus SE, Lenardo MJ. Inherited human Caspase 10 mutations underlie defective lymphocyte and dendritic cell apoptosis in autoimmune lymphoproliferative syndrome type II. Cell. 1999 Jul 9;98(1):47-58.

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Contacts:

Principal Investigator	Referral Contact	For more information:
Michael J. Lenardo, M.D. National Institute of Allergy and Infectious Diseases (NIAID) National Institutes of Health Building 10 Room 11N311 10 Center Drive Bethesda, Maryland 20892 (301) 496-6754 mlenardo@mail.nih.gov	Helen F. Matthews National Institute of Allergy and Infectious Diseases (NIAID) National Institutes of Health Building 10 Room 5-3940 10 Center Drive Bethesda, Maryland 20892 (301) 443-8080 matthewsh@mail.nih.gov	Patient Recruitment and Public Liaison Office Building 61 10 Cloister Court Bethesda, Maryland 20892-4754 Toll Free: 1-800-411-1222 TTY: 301-594-9774 (local),1-866-411-1010 (toll free) Fax: 301-480-9793 prpl@mail.cc.nih.gov

Clinical Trials Number:

NCT00246857

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