The pharmaceutical manufacturer Amgen announced on Tuesday that an experimental obesity drug helped patients lose up to 20 percent of their weight in a year. The drug, MariTide, is given by injection once a month, compared with once a week for other obesity drugs like Wegovy and Zepbound that are already on the market.

Amgen's experimental weight loss injection, MariTide, showed up to 20% weight loss in patients without diabetes and 17% in those with diabetes after a year in a phase 2 trial. Despite higher discontinuation rates compared to other drugs,