Abstract
Alzheimer’s disease (AD) is a progressive neurodegenerative disorder with few treatment options, especially for APOE4/4 homozygotes who carry high genetic risk. Valiltramiprosate/ALZ-801 is an oral small-molecule inhibitor of amyloid-beta oligomer formation in late-stage development as a disease-modifying therapy for AD. A recent Phase 3 trial did not meet its primary clinical endpoint in the overall population, but demonstrated significant benefits in cognition, function, and brain volumetric MRI (vMRI) in the prespecified subgroup with mild cognitive impairment (MCI). Here, we report plasma p-tau217, p-tau217/Aβ42, and neurofilament light chain (NfL) results from the Phase 3 trial, along with 4-year fluid biomarker data from the Phase 2 study in APOE4 carriers with early AD.