Original Investigation

Semaglutide Treatment of Antipsychotic-Treated Patients With Schizophrenia, Prediabetes, and Obesity

JAMA Psychiatry 10.1001/jamapsychiatry.2025.2332

September 03, 2025 at 11:00 AM EDT

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Can the glucagon-like peptide-1 receptor agonist semaglutide safely reduce glucose levels and body weight in patients with schizophrenia, prediabetes, and obesity?In this placebo-controlled randomized clinical trial of 154 patients with schizophrenia, overweight or obesity, and prediabetes, 30 weeks of semaglutide, 1.0 mg/week, significantly lowered glycosylated hemoglobin A. Moreover, semaglutide reduced body weight by a mean value of 9.21 kg and improved physical quality of life without exerting negative mental health consequences.Semaglutide is safe and effective for lowering blood glucose and weight in patients with schizophrenia who also experience overweight or obesity and prediabetes.

Corresponding Author: Jan Frystyk, MD, PhD, DMSc, Department of Endocrinology, Odense University Hospital, Kløvervænget 6, 5000 Odense, Denmark (jan.frystyk@rsyd.dk).

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