Protocol Details

Study of the Immunopathogenesis, Natural History, and Genetics of Autoimmune Lymphoproliferative Syndrome (alps) Associated with an Expansion of CD4-8-/TCR alpha/beta+ T Cells

This study is currently recruiting participants.

Summary | Eligibility | Citations | Contacts

Summary

Number	93-I-0063
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	This protocol studies the long term effects of your disease. Therefore, you will be invited to visit the NIH once a year or more frequently for the next few years so that we can follow the progression of your disease and manage its complications.
Keywords	Immunoregulation; T Cell Receptor Alpha/Beta; Lymphadenopathy
Recruitment Keyword(s)	Autoimmune Lymphoproliferative Syndrome; alps
Condition(s)	Autoimmune Disease; Lymphatic Disease; Lymphoproliferative Disorder; Canale-Smith Syndrome
Investigational Drug(s)	None
Investigational Device(s)	None
Intervention(s)	None
Supporting Site	National Institute of Allergy and Infectious Diseases

The purpose of the protocol is to allow for patients, and relatives of patients, who may have the newly described autoimmune lymphoproliferative syndrome, to be evaluated at the NIH Clinical Center. This evaluation will include blood and relevant tissue studies along with long-term clinical evaluations to define the biology, inheritance,clinical spectrum, and natural history of this syndrome. The aim of the research is to understand mechanisms involved in the development of expanded numbers of what is typically a rare population of immune cells (CD4-8-/TCRalpha/beta+ T cells, otherwise referred to as double negative T cells), and how these relate to the development of expanded numbers of immune cells and autoimmune (self against self) responses in patients with alps.

In some cases, we may proivide treatment related to alps. These treatments are consistent with standard medical practice.

Participants with alps will be invited to visit the NIH once a year or more frequently when clinically indicated for the next few years for clinicians and scientists to follow the course of their disease and to manage its complications. Knowledge gained from these studies provides important insights into the mechanisms of autoimmunity, the thymus gland, and the role that the immune system and genetics plays in alps.

Autoimmune lymphoproliferative syndrome is a rare disease that affects both children and adults. Each of these three words helps describe the main features of this condition. The word autoimmune (self-immune) identifies alps as a disease of the immune system. The tools used to fight germs turn against our own cells and cause problems. The word lymphoproliferative describes the unusually large numbers of white blood cells (called lymphocytes (stored in the lymph nodes and spleens of people with alps. The word syndrome refers to the many common symptoms shared by alps patients.

One of the causes of alps is defective apoptosis, or said another way, an individual has an abnormality in how well lymphocytes (immune cells) die when they are instructed to do so. It is normal for lymphocytes to disintegrate (e.g., die) when they have done their job. In people with alps and in some of their affected relatives, the genetic message for the cells to die is altered: the message is not received and the cells do not die when they should. As a result, people with alps develop an enlarged spleen, liver and lymph glands, along with a range of other problems involving white blood cell counts and overactive immune responses (autoimmune disease). Some patients have an increased risk of developing lymphatic cancers (lymphoma).

Provided is a description of eligible study candidates:

1.) Any patient with alps, male or female and of any age. As a patient with alps, candidates must have:

- a medical history of an enlarged spleen and/or enlarged lymph nodes over an extended period of time (past and/or current).

- defective lymphocyte apoptosis, in vitro.

- greater than or equal to 1 percent TCR alpha/beta+CD4-8- peripheral blood T cells.

2.) Relatives (any age) of patients and normal controls (18-65).

3.) Healthy normal volunteers will also be enrolled to provide data on normal cell behavior for comparison with patients.

Additional information regarding alps and the research being conducted at the National Institutes of Health is available at the following World Wide Web (e.g., Internet) locations:

http://www.niaid.nih.gov/publications/alps/

http://www.nhgri.nih.gov/DIR/GMBB/alps/.

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Eligibility

INCLUSION CRITERIA:

A. alps Natural History sample size and demographics:

Study size: up to 1000 patients, patients, relatives and normal controls.

Sex Distribution: Male and female

Age range: All ages acceptable

B. Eligibility Criteria for Natural History Study:

1. To be considered as having alps, patients must elevated TCR alpha/beta+ CD4-8- peripheral blood DNT cells (equal to or greater than 1.5 percent of total lymphocytes or 2.5 percent of CD3+ lymphocytes) in the setting of normal or evalted lymphocyte counts.

2. A history of chronic (greater than 6 months) non-malignant, non-infectious lymphadenopathy and/or splenomegaly.

3. Willingness to allow blood, tissue and other samples to be stored.

4. Patients with RALD (RAS associated leukoproliferative disorders) who present with autoimmunity, lymphadenopathy and/or splenomegaly, with elevated or normal DNT's and somatic mutations in NRAS and KRAS

C. Eligibility Criteria for Screening potential patients:

1. A history of chronic (greater than 6 months) lymphadenopathy and/or splenomegaly.

2. Willingness to allow blood, tissue and other samples to be stored.

D. Screening criteria for alps Relatives:

1. Extended family members of an alps patient are eligible for genetic screening to determine if they carry the mutation found in their family.

2. Willingness to allow blood, tissue and other samples to be stored.

E. 1. Apheresis will be done only on healthy volunteers or patients with alps who have adequate peripheral venous access. Women of childbearing age must have a negative pregnancy test within 24 hours of the procedure and must not be breast-feeding.

EXCLUSION CRITERIA:

1. Any condition that the Principal Investigator deems to be non-conducive to the research goals of the study.

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Citations:

A novel lymphoproliferative/autoimmune syndrome resembling murine lpr/gld disease

Dominant interfering gas gene mutations impair apoptosis in a human autoimmune lymphoproliferative syndrome

Mutations in Fas associated with human lymphoproliferative syndrome and autoimmunity

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Contacts:

Principal Investigator	Referral Contact	For more information:
V. Koneti Rao, M.D. National Institute of Allergy and Infectious Diseases (NIAID) National Institutes of Health BG 10 RM 12C106 MSC 1892 10 CENTER DR BETHESDA MD 20892-1892 (301) 496-6502 kr191c@nih.gov	Susan M. Price, R.N. National Institute of Allergy and Infectious Diseases (NIAID) National Institutes of Health Building 10 Room 11C410 10 Center Drive Bethesda, Maryland 20892 (301) 496-8412 sp420u@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:

NCT00001350

Additional Linkshttp://www.niaid.nih.gov/publications/alpshttp://www.niaid.nih.gov/publications/alps

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