Alzheimer’s disease is an incapacitating, progressive brain disorder that affects the lives of more than 6.5 million Americans. PamelaJoeMcFarlane/E+ via Getty Images James E. Galvin, University of Miami The U.S. Food and Drug Administration approved the medication lecanemab, sold under the brand name Leqembi, on Jan. 6, 2023, through an “accelerated approval pathway” that fast-tracks […]