Demand for the Danish company's weight-loss treatment Wegovy is soaring in the United States, leading it to significantly raise its full-year profit and sales expectations last month. "But most insurance companies (...) may need to see that data, to definitively see the correlation between weight loss and improved outcomes." Less than 15% could put downward pressure on the stock while around 10% would be a major disappointment, some of the investors and analysts said. Booming demand and production issues have caused shortages of Wegovy though, forcing Novo to delay launching the weekly injection in most of Europe. Even with the medical benefit, investors say the company faces a challenge convincing Europe's cost-conscious health authorities to pay for the drug.

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