Unintentional periconceptional exposure to glucagon‐like peptide‐1 receptor agonists and adverse pregnancy outcomes: A nationwide cohort study in Taiwan

Dec 5, 2025Diabetes, obesity & metabolism

Impact of Diabetes Medication on Pregnancy Outcomes

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Abstract

Exposure to glucagon-like peptide-1 receptor agonists (GLP-1 RAs) during the periconceptional period was assessed in 3351 pregnancies.

  • GLP-1 RA exposure was compared to insulin use in pregnancies of women with pregestational type 2 diabetes.
  • The risk ratio for major congenital malformations in the GLP-1 RA group was 0.64, indicating no significant increase compared to insulin.
  • The risk ratio for stillbirth was 2.05, suggesting a potential increase, but confidence intervals indicate uncertainty.
  • For preterm birth, the risk ratio was 1.09, indicating no significant difference from insulin use.
  • The risk ratio for small for gestational age () was 0.86, showing no increased risk compared to insulin.
  • Preliminary findings suggest that GLP-1 RA use does not lead to increased risks of adverse pregnancy outcomes compared to insulin.

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Key numbers

0.64
Risk Ratio for Major Congenital Malformations
GLP-1 RA vs. insulin
4.4%
Stillbirth Rate
GLP-1 RA vs. insulin
34.6%
Preterm Birth Rate
GLP-1 RA vs. insulin

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