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Effect of antidiabetic drugs on gut endocrine function after metabolic and bariatric surgery: a systematic review

Aurélie Phan, Mélanie Hirlemann, Hanna Ilchmann-Diounou, Claire Rives‐Lange, Sébastien Czernichow, Jerry Richard Greenfield, Maude Le Gall, Claire Carette

Obesity and Endocrinology, 2025

1 citation

Abstract

Abstract Objective The management of diabetes after metabolic and bariatric surgery (MBS) is not yet supported by strong evidence-based recommendations, and the mechanisms of action of antidiabetic drugs in this setting remain poorly defined. In particular, intestinal responses to these medications may be altered following surgery. This review aimed to synthesize current knowledge on the effects of antidiabetic drugs on gut hormone secretion after MBS. Design and methods A systematic review was conducted through searches of PubMed, Embase, and ClinicalTrials.gov. Eligible studies included clinical or preclinical investigations assessing gut hormone responses to antidiabetic drugs following MBS. Results The search, updated on August 28, 2025, identified 7781 references, of which only 8 original articles met the inclusion criteria. These studies, all conducted in humans, reported gut hormone responses to sitagliptin, liraglutide, empagliflozin, and canagliflozin after MBS. GLP-1 secretion was increased by sitagliptin following Roux-en-Y gastric bypass suggesting a synergistic effect. In addition, sitagliptin enhanced and restored GIP responses to meal testing. The results concerning GLP-1 measurements under treatment with GLP-1R agonist (liraglutide) were inconsistent. No studies were identified concerning sleeve gastrectomy—the most frequently performed bariatric procedure—or metformin, the most commonly prescribed antidiabetic drug. Conclusions This review highlights the…

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