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A Study of Familial and Genet...

A Study of Familial and Genetic Aspects of Adult T-Cell: Leukemia/Lymphoma , Tropical Spastic Paraparesis, and Infective Dermatitis

Last Updated: 2017-07-02

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

1800 participants

Study Classification

OBSERVATIONAL

Study Start Date

1993-05-17

Study Completion Date

2011-03-01

Brief Summary

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Doctors of the University of West Indies, the Caribbean Epidemiology Center (CAREC) and the National Cancer Institute have been studying the epidemiology of HTLV-I and its role in the etiology and pathogenesis of adult T-cell leukemia/lymphoma (ALT), and aggressive T-cell lymphoma. The purpose of the current study is to evaluate familial and genetic aspects of ATL and its relationship to two other HTLV-I related conditions, HTLV-I associated myelopathy also known as tropical spastic paraparesis (HAM/TSP), and infective dermatitis. Enrollment of infective dermatitis cases was recently added and the disease entity is thought to be a harbinger for later development of either ATL or HAM/TSP. The purpose of this study is to interview patients with these conditions and perform laboratory studies (specifically, HLA and other viral or genetic studies) to better understand these diseases and their relationship to the HTLV-1 virus and the family history and genetic factors that may be involved as well.

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Detailed Description

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Conditions

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HTLV-I

Eligibility Criteria

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Inclusion Criteria

All cases of ATL and TSP which satisfy the case definitions above. Cases will be selected regardless of HTLV-1 sero-status.

Exclusion Criteria

Cases who have none of the first three priority family members available i.e. parents, offspring and siblings, will be excluded from this study however summary data will be maintained.

Minimum Eligible Age

2 Years

Eligible Sex

ALL

Accepts Healthy Volunteers