Introduction
The apolipoprotein E ε4 (APOE ε4) allele is the strongest genetic risk factor for Alzheimer’s disease (AD), with homozygotes accumulating a high burden of cerebral beta-amyloid (Aβ) pathology. Valiltramiprosate/ALZ-801 is a small-molecule potent inhibitor of Aβ-oligomer formation. The efficacy, safety/tolerability, and brain volume effects of oral valiltramiprosate were evaluated in this phase III, randomized, double-blind, placebo-controlled, multi-center, 78-week trial in homozygotes with early symptomatic AD.