The Pre-symptomatic Familial Amyotrophic Lateral Sclerosis (Pre-fALS) Study

Обзор

Pre-fALS is a prospective natural history and biomarker study of people not yet affected with ALS, but who are at genetic risk for developing ALS. The investigators aim to recruit unaffected (healthy) people from familial ALS (fALS) pedigrees in which a known genetic mutation associated with ALS has been identified; for this study, a fALS pedigree is one with two biologically related individuals who have or have had ALS and/or FTD. Individuals who may be at genetic risk for ALS and who belong to families with at least one affected family member who has tested positive for a known ALS genetic mutation may also be eligible to participate. Our goal is to study the pre-symptomatic phase, onset and progression of ALS and to learn more about genetic and environmental factors that put people at risk for developing ALS.

Подробное описание

Healthy individuals from fALS families with a known genetic mutation will be included in this study. We encourage people who have previously undergone genetic testing and were found to carry the mutation that affects their family as well as those who do not know their genetic status to contact us. Those who wish to participate and to learn the results of genetic testing, may do so after undergoing genetic counseling. It is also possible to participate without learning the results of genetic testing. Participants eligible to complete study visits will travel to Miami (at our expense) approximately every 12-24 months for a period of 10 years or longer and will perform various biomarker procedures. Between visits, participants will complete phone calls about their health.

Первичные конечные точки

• Risk Factors for Progression to familial ALS [Срок оценки: Years]

Критерии участия

Критерии включения

• A member of a family in which a mutation in a gene associated with ALS has been identified.
• No symptoms to suggest the presence of ALS (i.e. study participants must currently be healthy).
• Having at least 50% probability of carrying an ALS associated gene mutation based on family pedigree.
• Willingness to undergo genetic testing, with the option of whether or not to learn the results.
• Willingness and availability to travel to Miami for a few days approximately every 12 to 24 months to complete biomarker procedures (e.g, MRI, blood draws, spinal tab/lumbar puncture, cognitive testing)

Критерии исключения

• Diagnosis of ALS
• Any condition or situation which, in the PI's opinion, could confound the biomarker data or may interfere with the individual's participation and compliance with the study protocol, including but not limited to neurological, psychological and/or medical conditions.

Критерии приведены из реестра в оригинале (на английском). Окончательную оценку соответствия проводит исследовательский центр.

Здоровые добровольцы: Нет

Дизайн исследования

Модель наблюдения

Когортное

Центры проведения

США · 1 центр

• University of Miami — Miami

Публикации

• Lee I, Garret MA, Wuu J, Harrington EA, Berry JD, Miller TM, Harms M, Benatar M, Shneider N. Body mass index is lower in asymptomatic C9orf72 expansion carriers but not in SOD1 pathogenic variant carriers compared to gene negatives. Amyotroph Lateral Scler Frontotemporal Degener. 2024 Nov;25(7-8):672-679. doi: 10.1080/21678421.2024.2396831. Epub 2024 Aug 27. PMID 39192497

Идентификаторы

NCT: NCT00317616 · Pre-fALS

Первоисточники (государственные реестры)

• ClinicalTrials.gov (NIH, США)

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