Pharmaceutical company Novo Nordisk, maker of blockbuster weight loss drug Wegovy, says its CEO is stepping down.

Eli Lilly said on Sunday its drug Zepbound was superior to Novo Nordisk's Wegovy across five weight-loss targets such as reducing waist circumference, citing data from a head-to-head trial. The data is the first head-to-head trial comparing the wildly popular medicines,

Eli Lilly’s (LLY) and Novo Nordisk’s (NVO) weight loss drugs went head-to-head in a weight loss study for the first time — and Eli Lilly’s drug came out on top.