Novo Nordisk Alzheimer's drug trials fail in blow to weight-loss giant ReutersNovo Nordisk shares plunge to four-year low after Alzheimer's drug trial fails to hit key target CNBCNovo Nordisk Shares Slump After Ozempic Pill Fails in Alzheimer's Trials The Wall Street JournalSemaglutide fails to slow progression of Alzheimer's in highly anticipated trials, Novo Nordisk says CNN