Pharmacological Treatment for Gestational Diabetes Mellitus: A Systematic Review and Network Meta-Analysis of 71 Randomised Controlled Trial
Abstract
AIMS: Pharmacologic treatment is widely used for managing gestational diabetes mellitus (GDM). However, evidence remains limited on the comparative effectiveness and safety across different drug classes for GDM. This study aims to compare the efficacy and safety of pharmacologic treatments for GDM using network meta-analysis of randomised controlled trials (RCTs).
MATERIALS AND METHODS: We searched PubMed, Embase, Cochrane Central Register of Controlled Trials, and Web of Science up to May 16, 2025 to identify trials evaluating glucose levels and maternal or neonatal complications in GDM patients using any pharmacologic agents, e.g., insulin, biguanides, sulfonylureas, α-glycosidase inhibitors, sodium-glucose cotransporter-2(SGLT-2) inhibitors, dipeptidyl peptidase IV(DPP-IV) inhibitors or Glucagon-like peptide-1receptor (GLP-1 RAs) versus standard care. We used random-effects model for both pairwise meta-analyses and frequentist network meta-analyses and applied the Confidence in Network Meta-Analysis (CINeMA) framework to assess the certainty of evidence.
RESULTS: Seventy-three articles were eligible, comprising 71 trials in which 14 877 participants were enrolled and seven drug classes assessed. All subsequent effects refer to comparisons with standard care. Because of their moderate to high evidence of certainty, sulfonylureas were established as the most effective drugs used for lowering fasting glucose (mean difference [MD]: -0.33 mmol/L; 95% confidence interval [CI]:…
How strong is the evidence?
Evidence Hub reads this as a meta-analysis, done in people. Its evidence level is 1 of 5 (Highest · pooled evidence). Pooled evidence from several studies sits at the top of the evidence pyramid. Reported size: 14 participants or records.
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