Regeneron has announced promising results from its Phase III clinical trials for a new weight-loss drug candidate, achieving a 19% weight reduction over 48 weeks. This performance matches the efficacy of Eli Lilly’s Zepbound but offers a superior safety profile with fewer gastrointestinal side effects. The entry of new competitors like Regeneron is intensifying pressure on established players in the GLP-1 market, which is becoming increasingly crowded. Consequently, Citi has maintained a "neutral" rating on Novo Nordisk, citing concerns over potential market share erosion. As the obesity treatment landscape evolves, the competitive edge of early leaders is being put to the test by rivals offering comparable results and better patient tolerability.
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