regeneron glp-1 gip treatment muscle loss side effects Pharmaceuticals announced on January 30, 2026, that its experimental obesity drug candidate delivers significant cholesterol-lowering benefits on top of weight loss—a differentiation strategy aimed at competing with Eli Lilly's and Novo Does GLP-1/GIP Therapy Cause Muscle

It works through its GLP-1 effects to decrease glucose

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Balancing Innovation and Affordability in Anti-Obesity Medications: The Role of Alternative Weight Maintenance Program was published in Health Affairs Scholar in May 2024

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Researchers became interested when early trials demonstrated unprecedented efficacy in metabolic controlwith some studies showing nearly 30% of subjects achieving normoglycemia and over 20% average weight losseffects that suggested the dual incretin approach might unlock mechanisms beyond what single-target agonists could achieve

This is a large, carefully designed observational study not a randomised trial so it points to a promising signal rather than a proven benefit