The Danish pharmaceutical giant reported positive early-stage results for its once weekly amycretin obesity drug.

Novo Nordisk on Friday announced early-stage trial results for its amycretin obesity drug for subcutaneous injection, saying people with obesity or overweight treated with the drug achieved a 22% weight loss after 36 weeks.

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.