In the article “Etanercept in Alzheimer disease: A randomized, placebo-controlled, double-blind, phase 2 trial” by J. Butchart et al. (Neurology® 2015;84:2161–2168), there is an error in the unit of measure used to report the CRP levels. They should have been reported as µg/mL rather than mg/mL. The authors regret the error.