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Comparative efficacy and safety of 8 GLP-1RAs in patients with type 2 diabetes: A network meta-analysis.

Diabetes Res Clin Pract · 2021

Last updated 2026-05-28

A review of 11,126 patients found that all GLP-1 drugs tested improved blood sugar control and weight loss compared to a placebo, except for one drug (albiglutide) which did not show a clear benefit for weight loss. However, four specific GLP-1 drugs were linked to a higher chance of side effects leading to stopping treatment, and most GLP-1 drugs increased the risk of low blood sugar compared to placebo, except for albiglutide and one form of semaglutide.

AI summary of the abstract below.

JournalDiabetes Res Clin Pract, 2021
Citations32
Relative citation ratio1.91
NIH percentile72
Molecules
Conditions studied Type 2 Diabetes

Abstract

AIMS: To inform clinical practice by comparing and ranking the lowing blood glucose and weight-loss abilities of 8 glucagon-like peptide-1 receptor agonists (GLP-1RAs) in patients with type 2 diabetes (T2D). METHODS: We searched PubMed, EMBASE, and CENTRAL from database inception to April 13, 2021. The outcomes were Δ HbA, Δ weight, adverse events [AE] withdrawals, and incidence of hypoglycemia. We estimated standardized mean differences [SMD] and summary odds ratios (ORs) using frequentist network meta-analysis with random effects. RESULTS: Retrieved trials included 11,126 patients, the overall mean age was 56.7 ± 10.36 years old. In terms of efficacy, all GLP-1RAs were more effective than the placebo except albiglutide-30 mg QW (Δ weight: SMD -0.26 kg [95 %CI: -1.10, 0.59 kg). When it came to safety, oral semaglutide-14mgQD, semaglutide-1mgQW, Liraglutide-1.8mgQD, and Exenatide-2ugBID were associated with an increased risk of AE withdrawals. And GLP-1RAs were associated with a higher incidence of hypoglycemia than placebo except albiglutide-30mgQW and orally administered semaglutide-14mgQD. CONCLUSION: Overall GLP-1RAs were more efficacious than placebo in patients with T2D on efficacy. Unfortunately, differences between GLP1-RAs regarding safety were mostly not significant. We may realize the individualized GLP-1RAs administration based on blood glucose level and obesity degree.

Verbatim abstract via PubMed 34102249 ↗