Lecanemab in symptomatic PSEN1 p.Met233Val early‐onset Alzheimer's disease: Neuroimaging safety, regional amyloid‐PET dynamics, and longitudinal plasma biomarkers
Abstract Introduction The presenilin 1 (PSEN1) p.Met233Val variant is a Dominantly Inherited Alzheimer Network–Trials Unit (DIAN‐TU)–eligible autosomal‐dominant Alzheimer's disease (ADAD) variant for which lecanemab response data are unavailable. Methods A 34‐year‐old symptomatic PSEN1 p.Met233Val carrier (APOE ε3/ε3)...