Metabolites
Weight Regain After Discontinuation of GLP-1 and GIP/GLP-1 Receptor Agonists: A Systematic Review
By Marco Marchetti, Giulia Campisano, Rosa Maria Paragliola and 3 others.
Abstract
Background
Weight regain and loss of cardiometabolic benefit commonly follow the withdrawal of glucagon-like peptide-1 receptor agonists (GLP-1RAs) and dual glucose-dependent insulinotropic polypeptide/GLP-1 receptor agonists, yet maintenance strategies are incompletely characterized.
Methods
We conducted a systematic review reported according to PRISMA 2020 of primary studies in adults with overweight or obesity, with or without type 2 diabetes. PubMed/MEDLINE, Europe PMC and ClinicalTrials.gov were searched from inception to September 2026, supplemented by backward/forward citation searching and cross-checking of recent systematic reviews. Eligible reports quantified weight or cardiometabolic outcomes at least 12 weeks after planned or unplanned treatment cessation, or tested a post-cessation maintenance strategy. Randomized reports were assessed with RoB 2 and non-randomized reports with ROBINS-I. Owing to incompatible estimands, follow-up schedules, cointerventions and overlapping trial families, results were synthesized narratively without a new pooled estimate.