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Badulescu S, Tabassum A, Le GH, Wong S, Phan L, Gill H, Llach CD, McIntyre RS, Rosenblat J, Mansur R. Glucagon-like peptide 1 agonist and effects on reward behaviour: A systematic review. Physiol Behav 2024; 283:114622. [PMID: 38945189 DOI: 10.1016/j.physbeh.2024.114622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 06/17/2024] [Accepted: 06/25/2024] [Indexed: 07/02/2024]
Abstract
INTRODUCTION The roles of metabolic signals, including Glucagon-like peptide 1 (GLP-1), have been implicated in multiple domains outside metabolic regulation. There is a growing interest in repurposing Glucagon-like peptide 1 receptor agonists (GLP-1RAs) as therapeutics for motivation and reward-related behavioural disturbances. Herein, we aim to systematically review the extant evidence on the potential effects of GLP-1RAs on the reward system. METHODS The study followed PRISMA guidelines using databases such as OVID, PubMed, Scopus, and Google Scholar. The search focused on "Reward Behavior" and "Glucagon Like Peptide 1 Receptor Agonists" and was restricted to human studies. Quality assessment achieved by the NIH's Quality Assessment of Controlled Intervention Studies RESULTS: GLP-1RAs consistently reduced energy intake and influenced reward-related behaviour. These agents have been associated with decreased neurocortical activation in response to higher rewards and food cues, particularly high-calorie foods, and lowered caloric intake and hunger levels. DISCUSSION GLP-1RAs show promise in addressing reward dysfunction linked to food stimuli, obesity, and T2DM. They normalize insulin resistance, and might also modulate dopaminergic signalling and reduce anhedonia. Their effects on glycemic variability and cravings suggest potential applications in addiction disorders.
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Affiliation(s)
- Sebastian Badulescu
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada; Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON, Canada.
| | - Aniqa Tabassum
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada; Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON, Canada
| | - Gia Han Le
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada; Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON, Canada
| | - Sabrina Wong
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada; Department of Pharmacology, University of Toronto, Toronto, ON, Canada
| | - Lee Phan
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON, Canada
| | - Hartej Gill
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada; Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON, Canada
| | - Cristian-Daniel Llach
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada; Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON, Canada
| | - Roger S McIntyre
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada; Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON, Canada; Department of Pharmacology, University of Toronto, Toronto, ON, Canada
| | - Joshua Rosenblat
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada; Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON, Canada; Department of Pharmacology, University of Toronto, Toronto, ON, Canada
| | - Rodrigo Mansur
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada; Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON, Canada
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Guirguis A, Chiappini S, Papanti P GD, Vickers-Smith R, Harris D, Corkery JM, Arillotta D, Floresta G, Martinotti G, Schifano F. Exploring the association between suicidal thoughts, self-injury, and GLP-1 receptor agonists in weight loss treatments: Insights from pharmacovigilance measures and unmasking analysis. Eur Neuropsychopharmacol 2024; 82:82-91. [PMID: 38508100 DOI: 10.1016/j.euroneuro.2024.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 01/30/2024] [Accepted: 02/02/2024] [Indexed: 03/22/2024]
Abstract
INTRODUCTION The study addresses concerns about potential psychiatric side effects of Glucagon-like peptide-1 receptor agonists (GLP-1 RA). AIM The aim of this work was to analyse adverse drug reports (ADRs) from the Food and Drug Administration Adverse Events Reporting System (FAERS) using metformin and orlistat as comparators. METHODS Descriptive and pharmacovigilance disproportionality analyses was performed. RESULTS A total of 209,354 ADRs were reported, including 59,300 serious cases. Of those, a total of 5378 psychiatric disorder cases, including 383 'serious' cases related to selected ADRs were registered during 2005-2023. After unmasking, 271 cases where individual GLP-1 RA were implicated showing liraglutide (n = 90; Reported Odds Ratio (ROR) = 1.64), exenatide (n = 67; ROR = 0.80), semaglutide (n = 61; ROR = 2.03), dulaglutide (n = 45; ROR = 0.84), tirzepatide (n = 5; ROR = 1.76) and albiglutide (n = 2; ROR = 0.04). A greater association between these ADRs with metformin was observed, but not orlistat. With regards to selected preferred terms (PTs), 42 deaths including 13 completed suicides were recorded. Suicidal ideation was recorded in n = 236 cases for 6/7 GLP-1 RA (excluding lixisenatide). DISCUSSION Suicide/self-injury reports pertaining to semaglutide; tirzepatide; and liraglutide were characterised, although lower than metformin. It is postulated that rapid weight loss achieved with GLP-1 RA can trigger significant emotional, biological, and psychological responses, hence possibly impacting on suicidal and self-injurious ideations. CONCLUSIONS With the current pharmacovigilance approach, no causality link between suicidal ideation and use of any GLP-1 RA can be inferred. There is a need for further research and vigilance in GLP-1 RA prescribing, particularly in patients with co-existing psychiatric disorders.
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Affiliation(s)
- A Guirguis
- Swansea University, Singleton Campus, The Grove, SA2 8PP, Wales, UK.
| | - S Chiappini
- UniCamillus University, Via di S. Alessandro 8, 00131, Rome, Italy; Psychopharmacology, Drug Misuse, and Novel Psychoactive Substances Research Unit, University of Hertfordshire, College Lane Campus, Hatfield AL10 9AB, UK
| | - G D Papanti P
- Psychopharmacology, Drug Misuse, and Novel Psychoactive Substances Research Unit, University of Hertfordshire, College Lane Campus, Hatfield AL10 9AB, UK; Tolmezzo Community Mental Health Centre, ASUFC Mental Health Department, Via Giuliano Bonanni, 2, 33028 Tolmezzo, UD, Italy
| | - R Vickers-Smith
- Department of Epidemiology and Environmental Health, University of Kentucky College of Public Health, 111 Washington Avenue, Lexington, KY 40536, USA
| | - D Harris
- Institute for Pharmaceutical Outcomes and Policy, University of Kentucky College of Pharmacy, 289 South Limestone Street, Lexington, KY 40536, USA; Center for Clinical and Translational Sciences, University of Kentucky, 800 Rose Street, Lexington, KY 40506, USA
| | - J M Corkery
- Psychopharmacology, Drug Misuse, and Novel Psychoactive Substances Research Unit, University of Hertfordshire, College Lane Campus, Hatfield AL10 9AB, UK
| | - D Arillotta
- Psychopharmacology, Drug Misuse, and Novel Psychoactive Substances Research Unit, University of Hertfordshire, College Lane Campus, Hatfield AL10 9AB, UK; Department of Clinical Pharmacology and Toxicology, University of Florence, Italy
| | - G Floresta
- Psychopharmacology, Drug Misuse, and Novel Psychoactive Substances Research Unit, University of Hertfordshire, College Lane Campus, Hatfield AL10 9AB, UK; Department of Drug and Health Sciences, University of Catania, Italy
| | - G Martinotti
- Psychopharmacology, Drug Misuse, and Novel Psychoactive Substances Research Unit, University of Hertfordshire, College Lane Campus, Hatfield AL10 9AB, UK; Department of Neurosciences, Imaging, and Clinical Sciences, University of Chieti-Pescara, Via di Vestini 31, 66100, Chieti, Italy
| | - F Schifano
- Psychopharmacology, Drug Misuse, and Novel Psychoactive Substances Research Unit, University of Hertfordshire, College Lane Campus, Hatfield AL10 9AB, UK
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McIntyre RS, Mansur RB, Rosenblat JD, Kwan ATH. The association between glucagon-like peptide-1 receptor agonists (GLP-1 RAs) and suicidality: reports to the Food and Drug Administration Adverse Event Reporting System (FAERS). Expert Opin Drug Saf 2024; 23:47-55. [PMID: 38087976 DOI: 10.1080/14740338.2023.2295397] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 12/07/2023] [Indexed: 12/20/2023]
Abstract
INTRODUCTION Recently, the European Medicines Agency (EMA) received reports of suicidal thoughts and self-injury associated with glucagon-like peptide-1 receptor agonists (GLP-1 RAs) liraglutide and semaglutide. RESEARCH DESIGN AND METHODS Herein, we sought to evaluate suicidality associated with all GLP-1 RAs relative to other glucose-lowering agents currently approved by the United States Food and Drug Administration (FDA). Reports of suicidal ideation, "depression/suicidal", suicidal behavior, suicidal attempts, and completed suicide associated with GLP-1 RA exposure reported to the FDA between 2005 and October 2023 were obtained from the FDA Adverse Event Reporting System (FAERS). We present data using the reporting odds ratio (ROR). The ROR was considered significant when the lower limit of the 95% confidence interval (CI) was greater than 1.0. RESULTS Disproportionate reporting of suicidal ideation and "depression/suicidal" was observed with semaglutide and liraglutide. Disproportionate reporting of suicidal behavior, suicide attempts, and completed suicide was not observed for any of the FDA-approved GLP-1 RAs. CONCLUSIONS Using the Bradford Hill criteria, however, and taking into consideration confounders, no causal link between GLP-1 RAs and suicidality exists.
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Affiliation(s)
- Roger S McIntyre
- Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada
- Brain and Cognition Discovery Foundation, Toronto, Ontario, Canada
| | - Rodrigo B Mansur
- Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, Ontario, Canada
| | - Joshua D Rosenblat
- Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, Ontario, Canada
| | - Angela T H Kwan
- Brain and Cognition Discovery Foundation, Toronto, Ontario, Canada
- Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
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