Ozempic-maker's shares plunge after failed Alzheimer's trial

Shares in Novo Nordisk, the Danish firm best known for its Wegovy and Ozempic weight loss drugs, have plunged after it called a halt to closely-watched trials on a treatment for Alzheimer's disease.The company had been testing whether a key ingredient in the drugs could slow progression of the brain disorder. Novo Nordisk, which began the trials two years ago, had always treated the study as an outside bet but one which had the potential to land big rewards, if successful, as earnings from its core diabetes ...