A study of two blockbuster weight-loss drugs showed that users of Eli Lilly’s Zepbound lost just over 2 inches more off their waists compared with Novo Nordisk’s rival Wegovy. At 72 weeks, participants using Zepbound saw an average weight-loss reduction of 20.

A new study has found that people taking Eli Lilly’s obesity drug Zepbound lost almost 50% more weight than those using Novo Nordisk’s Wegovy. The study — published May 11 in the New England Journal of Medicine — followed 751 people across the U.

The obesity drug helped patients reduce their waist size by an extra two inches compared to those on Novo Nordisk’s Wegovy in a head-to-head study of the two drugs.