Novo Nordisk sued over weight-loss drug spin. Now it’s doing the exact same thing

Published September 22, 2026 9:00am ET



Novo Nordisk and Eli Lilly are battling for dominance in one of medicine’s largest and fastest-growing markets: drugs for obesity and weight loss.

On Monday, Novo announced encouraging results for its experimental drug CagriSema. In a Phase 3 study of patients with type 2 diabetes, CagriSema produced 12.4% average weight loss after 60 weeks, compared with 9.1% for Lilly’s tirzepatide, sold as Mounjaro for diabetes and Zepbound for obesity.

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