The EU loves to ransom US tech companies for budget money. It's very clear that this is an opportunity for the US to similarly damage a big EU company by threatening its patents in the US, or otherwise hitting Novo for tens of billions of dollars in ransom money. The US market is by a huge margin the most important drug market in the world, and especially for Novo.
Find an abusive excuse to invalidate their patents if all else fails. Let Europe learn a valuable lesson in trade wars.