Background: Three small trials suggest that intravenous immunoglobulin can affect biomarkers and symptoms of mild-to-moderate Alzheimer’s disease. We tested the safety, effective dose, and infusion interval of intravenous immunoglobulin in such patients.; Methods: We did a multicentre, placebo-controlled phase 2 trial at seven sites in the USA and five in Germany. Participants with probable Alzheimer’s […]