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In an announcement published on 21 May 2026, Eli Lilly shared the results []

At the same time, payer policies often require discontinuation of GLP-1 therapy when a patients BMI drops below a set threshold, inadvertently triggering a frustrating cycle of weight loss and regainthe so-called yo-yo effect. This not only impacts ongoing adherence and persistence but also undermines the long-term cost-effectiveness of these therapies for healthcare systems

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and promotion of muscle mitochondria biogenesis.The potential for GLP-1R agonists to improve muscle function and architecture underscores the need for large randomized controlled, clinically comparative trials of GLP-1R agonists in patients with IIM.