Novo Nordisk A/S’s blockbuster drug Wegovy was targeted for price cuts by the US government and suffered a setback in a new trial, adding to growing threats to the Danish company’s early dominance in the surging market for new weight-loss treatments.

Novo sells semaglutide as Ozempic and Rybelsus for diabetes and as Wegovy for obesity. In price talks, CMS will treat the different forms as a single product.

The Biden administration announced Friday that Ozempic, Wegovy and 13 additional drugs will now be covered under Medicare Part-D for price negotiations, the next round of negotiations under the Inflation Reduction Act passed by President Joe Biden in 2022.