The new treatment targets gut hormone GLP-1 but also mimics amylin, a hormone released by the pancreas that suppresses hunger.

One of Novo Nordisk's next-generation obesity shots to follow up on the success of Wegovy helped patients lose 22% of their weight in 36 weeks, according to early-stage trial results on Friday, boosting the drugmaker's shares.

On Friday, however, Novo Nordisk announced top-line results in yet another trial. While the results don't initially sound as good as those in the trials cited above, however, the speed at which they were achieved has investors cheering, and Novo Nordisk stock is up 7.7% through 10:50 a.m. Friday morning.

Novo Nordisk shares were 9.5% higher after the pharmaceutical giant said an experimental weight-loss shot showed patients lost 22% of their bodyweight in a clinical trial.

Novo Nordisk's U.S.-listed shares are surging 9% Friday morning after the Danish drugmaker reported early stage results for its amycretin weight-loss drug.

Just how much Medicare price negotiations will negatively impact Novo Nordisk, though, depends on what the final negotiated prices for Ozempic, Wegovy, and Rybelsus will be. In Medicare's negotiations for 2026, the new prices achieved an average of 22% savings.

Novo Nordisk's amycretin trial results highlight significant weight loss in adults with obesity, with further clinical development planned.

Novo Nordisk (NVO) stock gains on promising Phase 1/2 data for the drugmaker's new weight loss drug amycretin. Read more here.

Here are some of the major companies whose stocks moved on the week’s news.