ArticleSystematic reviews2026
The use of GLP-1 receptor agonists and co-agonists in adults without diabetes: a systematic review and network meta-analysis protocol.
Article in Systematic reviews, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
7 authors.
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Abstract
backgroundDespite the increasing clinical use of glucagon-like peptide-1 receptor agonists (GLP-1 RAs), head-to-head evidence across these agents remains limited. This systematic review and network meta-analysis (NMA) will assess the comparative efficacy and safety of GLP-1 RAs and novel co-agonists for weight loss among adults without diabetes.
methodsWe will systematically search the PubMed, Ovid, and Cochrane CENTRAL databases to identify randomized controlled trials (RCTs) comparing a GLP-1 RA/co-agonist to placebo or another GLP-1 RA/co-agonist. We will restrict inclusion to RCTs in adults with overweight or obesity; those including participants with diabetes, specific comorbidities or diseases, or history of bariatric surgery will be excluded. The primary outcome will be weight loss, expressed as relative change from baseline, assessed at 6 months (± 4 weeks) and 1-1.5 years (± 4 weeks). Secondary outcomes will include absolute body weight change, total adverse events, gastrointestinal adverse events, serious adverse events, and death. Pairwise meta-analyses and frequentist NMAs will be conducted using a random-effects model. Treatment rankings for efficacy and safety outcomes will be generated using the surface under the cumulative ranking curve. The validity of the results and the assumptions underlying the analyses will be evaluated using a local and global approach. Study-level quality will be assessed using the Cochrane Risk of Bias (RoB) 2 tool and overall network quality will be assessed using the RoB-NMA tool. DISCUSSION: We aim to provide an up-to-date synthesis of RCTs assessing the weight loss effects of GLP-1 RAs and co-agonists among adults without diabetes to support future clinical decision-making, guideline development, and policy decisions. SYSTEMATIC REVIEW REGISTRATION: PROSPERO CRD420251009368.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.