ArticleBrain and behavior2025
Effects of Tafamidis Meglumine on Transient Focal Neurological Episodes and Meningeal Contrast Enhancement in Hereditary Transthyretin-Related Meningeal Amyloidosis: Report of Two Patients Carrying the c.265T>C (p.Y89H) Variant.
Article in Brain and behavior, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Disease modifying treatment of hereditary transthyretin amyloidosis with polyneuropathy in Germany - expert consensus of the German society of amyloid diseases (DGAK) and the German neurological society (DGN).Neurological research and practice · 2026Review
- Article
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7 authors.
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Abstract
backgroundY69H (p.Y89H) variant hereditary transthyretin (ATTRv) amyloidosis causes meningeal amyloidosis, with mutant TTR deposits localized to the leptomeninges and vitreous body.
methodsThe effect of tafamidis meglumine on neurological disorders, such as the frequency of transient focal neurological episodes (TFNEs), magnetic resonance imaging (MRI) findings, and TTR levels in cerebrospinal fluid, was investigated in two patients diagnosed with Y69H ATTRv mutation.
resultsThe initial symptoms in both patients were TFNEs, such as aphasia, sensory disturbance, motor paralysis, ataxia, and drop attacks. Neither epileptic drugs nor antiplatelet therapy decreased the frequency of attacks. The patients exhibited diffuse leptomeningeal enhancement on brain and spinal MRI. Tafamidis meglumine was initiated at a dose of 20 mg/day and was found to be partially effective. The TFNEs nearly resolved, and meningeal enhancement on brain MRI improved; however, the neurological deficits progressed over the following 2 years.
conclusionsTafamidis had a partial effect on TFNEs and meningeal contrast enhancement on MRI; however, cerebellar ataxia and cognitive decline continued to progress.
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