Cited by 102Schizophrenia research and treatmentPharmacology and Obesity TreatmentDiabetes Treatment and Management

Effect of GLP ‐1 receptor agonist treatment on body weight in obese antipsychotic‐treated patients with schizophrenia: a randomized, placebo‐controlled trial

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Ishøy, Pelle L., Knop, Filip K., Broberg, Brian V., Bak, Nikolaj, Andersen, Ulrik B., Jørgensen, Niklas R., Holst, Jens J., Glenthøj, Birte Y. +1 more·2017·Diabetes, Obesity and Metabolism

Abstract

AIMS: receptor antagonists and are the standard of medical care in schizophrenia, but the drugs are associated with severe metabolic side effects such as obesity and diabetes. Glucagon-like peptide-1 receptor agonists (GLP-1RAs) are registered for treatment of both obesity and type 2 diabetes. We investigated metabolic effects of the GLP-1RA, exenatide once-weekly, in non-diabetic, antipsychotic-treated, obese patients with schizophrenia. MATERIAL AND METHODS: Antipsychotic-treated, obese, non-diabetic, schizophrenia spectrum patients were randomized to double-blinded adjunctive treatment with once-weekly subcutaneous exenatide (n = 23) or placebo (n = 22) injections for 3 months. The primary outcome was loss of body weight after treatment and repeated measures analysis of variance was used as statistical analysis. RESULTS: Between March 2013 and June 2015, 40 patients completed the trial. At baseline, mean body weight was 118.3 ± 16.0 kg in the exenatide group and 111.7 ± 18.0 kg in the placebo group, with no group differences ( P = .23). The exenatide and placebo groups experienced significant ( P = .004), however similar ( P = .98), weight losses of 2.24 ± 3.3 and 2.23 ± 4.4 kg, respectively, after 3 months of treatment. CONCLUSIONS: Treatment with exenatide once-weekly did not promote weight loss in obese, antipsychotic-treated patients with schizophrenia compared to placebo. Our results could suggest that the body weight-lowering effect of GLP-1RAs involves dopaminergic signaling, but blockade of other receptor systems may also play a role. Nevertheless, anti-obesity regimens effective in the general population may not be readily implemented in antipsychotic-treated patients with schizophrenia.

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Authors
Ishøy, P. L., Knop, F. K., Broberg, B. V., Bak, N., Andersen, U. B., Jørgensen, N. R., Holst, J. J., Glenthøj, B. Y., & Ebdrup, B. H.
Affiliations
  • University of Copenhagen (DK)
  • Center for Neuropsychiatric Schizophrenia Research, CNSR, and Center for Clinical Intervention and Neuropsychiatric Schizophrenia Research, CINS, Mental Health Centre Glostrup University of Copenhagen Glostrup Denmark
Corresponding author
Ebdrup, Bjørn H.
Venue
Diabetes, Obesity and Metabolism
Publisher
Wiley
Published
2016-11-14
Volume
19
Issue
2
Pages
162-171
ISSN
  • 1462-8902 (ISSN-L)
  • 1463-1326
OpenAlex
W4249844731
Cited by
102
References
40
Citations by year
2026: 23 · 2025: 16 · 2024: 12 · 2023: 11 · 2022: 10 · 2021: 8 · 2020: 2 · 2019: 6 · 2018: 8 · 2017: 6
FWCI
5.92
Type
journal article
Language
en
Open access
Locations
  • Diabetes Obesity and Metabolism (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • University of Southern Denmark Research Portal (University of Southern Denmark) (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • Research at the University of Copenhagen (University of Copenhagen) (publishedVersion, cc-by-nc-nd)
Funders
  • University of Copenhagen (211-0649/11-3012)
  • University of Copenhagen/Mental Health Services, Capital Region of Denmark (R25-A2701)
  • Centre for Clinical Intervention and Neuropsychiatric Schizophrenia Research, CINS (R25-A2701)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Health Sciences › Medicine › Pharmacology › Pharmacology and Obesity Treatment
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Treatment and Management
Keywords
exenatide, GLP-1 receptor agonists, schizophrenia, obesity, antipsychotic-induced weight gain, weight loss, adjunctive therapy, dopaminergic signaling, metabolic side effects of antipsychotics
MeSH terms
Exenatide, Glucagon-Like Peptide-1 Receptor Agonists, Adult, Blood Glucose, Blood Pressure, Body Composition, Body Weight, Double-Blind Method, Female, Glycated Hemoglobin, Humans, Male, Middle Aged, Obesity, Peptides, Schizophrenia, Antipsychotic Agents, Venoms, Weight Loss, Absorptiometry, Photon, Treatment Outcome, Blood Pressure Monitoring, Ambulatory, Waist-Hip Ratio, Incretins, Waist Circumference, Young Adult

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