Eli Lilly & Co. (LLY) said its weight-loss drug Zepbound outperformed rival Novo Nordisk's (NVO) Wegovy in the first head-to-head trial of the two blockbusters. In the study sponsored by Lilly, those on Zepbound lost an average of about 50 pounds over 72 weeks. Dr. Daniel Skovronsky, Eli Lilly chief scientific officer, spoke about the results on "Bloomberg Open Interest."

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