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Assessment of executive function declines in presymptomatic and
mildly symptomatic familial frontotemporal dementia: NIH-EXAMINER as a potential
clinical trial endpoint
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Published Date:
January 2020
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Source:Alzheimers Dement. 16(1):11-21
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Language:English
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[PDF-439.30 KB]
Details:
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Alternative Title:Alzheimers Dement
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Personal Author:
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Description:Introduction: Identifying clinical measures that track disease in the earliest stages of frontotemporal lobar degeneration (FTLD) is important for clinical trials. Familial FTLD provides a unique paradigm to study early FTLD. Executive dysfunction is a clinically relevant hallmark of FTLD and may be a marker of disease progression. Methods: Ninety-three mutation carriers with no symptoms or minimal/questionable symptoms (MAPT, n = 31; GRN,n = 28; C9orf72,n = 34; Clinical Dementia Rating scale plus NACC FTLD Module <1) and 78 noncarriers enrolled through Advancing Research and Treatment in Frontotemporal Lobar Degeneration/Longitudinal Evaluation of Familial Frontotemporal Dementia Subjects studies completed the Executive Abilities: Measures and Instruments for Neurobehavioral Evaluation and Research (NIH-EXAMINER) and the UDS neuropsychological battery. Linear mixed-effects models were used to identify group differences in cognition at baseline and longitudinally. We examined associations between cognition, clinical functioning, and magnetic resonance imaging volumes. Results: NIH-EXAMINER scores detected baseline and differences in slopes between carriers and noncarriers, even in carriers with a baseline Clinical Dementia Rating scale plus NACC FTLD Module = 0. NIH-EXAMINER declines were associated with worsening clinical symptoms and brain volume loss. Discussion: The NIH-EXAMINER is sensitive to cognitive changes in presymptomatic familial FTLD and is a promising surrogate endpoint.
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Subject:
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Pubmed ID:31914230
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Pubmed Central ID:PMC6842665
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