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Review analyzes GLP-1 receptor agonists’ effects on obesity and cardiovascular health, indicating broad therapeutic implications.
Glucagon-like peptide-1 receptor agonists (GLP-1 RAs) have advanced from incretin-based therapies for type 2 diabetes to multifaceted treatments addressing obesity, cardiovascular disease, and emerging neuropsychiatric conditions. This review examines their physiological mechanisms, pharmacological profiles, and clinical outcomes based on data through early 2026. GLP-1 RAs mimic the incretin effect, enhancing insulin secretion, delaying gastric emptying, and modulating central reward pathways in the mesolimbic system. Approved agents like semaglutide and tirzepatide achieve 15-25% weight loss, reduce major adverse cardiovascular events by 12-26%, and show promise in heart failure with preserved ejection fraction and chronic kidney disease. Recent trials indicate potential in alcohol use disorder, with semaglutide reducing heavy drinking and cravings, though cognitive benefits in major depressive disorder remain unproven. Safety analyses from large cohorts (2024-2025) confirm no increased thyroid cancer risk (HR 0.81-0.93), and FDA reviews (2026) find no causal suicidality link. Overall, GLP-1 RAs bridge metabolic and behavioral health, supporting a unified view of energy regulation. Ongoing research on patient responders and targeted analogues will guide their integration into care for metabolic psychiatry, emphasizing balanced risk assessment.
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Fidelis et al. (2026) studied this question.
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