A comparison of the safety and effectiveness of insulin aspart with other bolus insulins in women with pre-existing Type 1 diabetes during pregnancy: A post hoc analysis of a prospective cohort study

Elisabeth R. Mathiesen*, Amra Ciric Alibegovic, Gayathri Anil, Fidelma Dunne, Tariq Halasa, Marina Ivanišević, David R. McCance, Rikke Baastrup Nordsborg, Peter Damm, the EVOLVE study group

*Corresponding author af dette arbejde

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Abstract

Aims
The safety and efficacy of insulin analogue insulin aspart (IAsp) have been demonstrated in a randomised clinical trial in pregnant women with Type 1 diabetes (T1D), and IAsp is widely used during pregnancy. The aim of this study was to assess glycaemic control and safety of IAsp versus other bolus insulins in Type 1 diabetic pregnancy in a real-world setting.

Methods
This was a post hoc analysis of a prospective cohort study of 1840 pregnant women with T1D, treated with IAsp (n = 1434) or other bolus insulins (n = 406) in the Diabetes Pregnancy Registry. The primary (composite) outcome was the proportion of pregnancies resulting in major congenital malformations or perinatal or neonatal death. Secondary outcomes included all HbA1c values measured immediately before and during pregnancy and major hypoglycaemia, as well as abortion, pre-eclampsia, pre-term delivery, large for gestational age at birth, stillbirth and fetal malformations.

Results
There were no significant differences found in any of the pregnancy outcomes between treatment with IAsp and other bolus insulins in either the crude or propensity score-adjusted analyses. However, maternal HbA1c was lower in the IAsp group at the end of the third trimester (adjusted difference, −0.16% point [95% CI −0.28;−0.05]; −1.8 mmol/mol [95% CI −3.1;−0.6]; p = 0.0046).

Conclusions
No significant differences in safety or pregnancy outcomes were demonstrated when comparing treatment with IAsp versus other bolus insulins in women with T1D during pregnancy. The observed improvement in HbA1c with IAsp in late pregnancy should be confirmed in other studies.
OriginalsprogEngelsk
Artikelnummere15411
TidsskriftDiabetic Medicine
Vol/bind41
Udgave nummer10
Antal sider12
ISSN0742-3071
DOI
StatusUdgivet - 2024

Bibliografisk note

Publisher Copyright:
© 2024 The Author(s). Diabetic Medicine published by John Wiley & Sons Ltd on behalf of Diabetes UK.

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