Insulin treatment and longer diabetes duration both predict poorer glycaemic response to liraglutide treatment in type 2 diabetes: the Association of British Clinical Diabetologists Nationwide Liraglutide Audit

Authors

  • Ken Y Thong School of Medicine and Pharmacology, University of Western Australia, Perth, Australia
  • Barbara M Mcgowan Guy's and St Thomas' NHS Trust, London, UK
  • Thein Htay Queen Elizabeth II, Welwyn Garden City, UK
  • Andrew Pernet King’s College Hospital, London, UK
  • Chris Kelly Stirling Community Hospital, UK
  • Chinnadorai Rajeswaran Mid Yorkshire NHS Trust, UK
  • Jill Howell Pontefract General Infirmary, Yorkshire, UK
  • Catriona Duncan Kirkcaldy Acute Hospitals NHS Trust, UK
  • Berit Inkster Royal Infirmary of Edinburgh, UK
  • Linda Buchanan Forth Valley Royal Hospital, Larbert, UK
  • Saiful Kassim Causeway Hospital, Northern Ireland, UK
  • Rahul Nayer City Hospitals Sunderland, UK
  • Nicholas D Barwell Forth Valley Royal Hospital, Larbert, UK
  • Christopher Walton Hull Royal Infirmary, Hull, UK
  • Robert EJ Ryder Sandwell & West Birmingham NHS Trust, Birmingham, UK
  • ABCD Nationwide Liraglutide Audit contributors Appendix 1 (see online version of article at www.bjdvd.com)

DOI:

https://doi.org/10.15277/bjdvd.2015.046

Abstract

Background: Liraglutide may be less effective in patients with more advanced type 2 diabetes. This study from the Association of British Clinical Diabetologists Nationwide Liraglutide Audit analysed changes in HbA1c of patients after 26 weeks of treatment with liraglutide 1.2 mg, stratified according to the intensity of their background diabetes therapy, or according to their duration of diabetes.

Methods: Patients using liraglutide as add-on therapy were stratified for receipt to one, two or three oral antidiabetic agents (OADs) or insulin (± OAD), or for diabetes duration of 0–5 years, 6–10 years, or >10 years. Changes in HbA1c were compared across groups after adjusting for baseline HbA1c.

Results: After exclusions to standardise comparisons, 937 patients with background diabetes treatment and 802 patients with recorded diabetes duration were analysed. Least-squares adjusted mean changes in HbA1c (± SEM) were –1.8% ± 0.1 for 135 patients on one OAD, –1.7% ± 0.1 for 284 patients on two OADs,–1.9% ± 0.1 for 94 patients on three OADs (n=94) and –1.0% ± 0.1 for 424 patients receiving insulin. HbA1c changes did not differ significantly between OAD groups, but all OAD groups had greater HbA1c reductions compared with the insulin group (all p<0.00001). Adjusted mean HbA1c changes were –2.0% ± 0.1 for patients with diabetes duration 0–5 years (n=147, p<0.05 vs. longer diabetes durations), –1.6% ± 0.1 for 6–10 years (n=256), and –1.2% ± 0.1 for >10 years (n=399).

Conclusion: The need for insulin and long diabetes duration, but not the number of OADs taken, predicted a smaller treatment response to liraglutide.

Author Biography

Robert EJ Ryder, Sandwell & West Birmingham NHS Trust, Birmingham, UK


 

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Published

2015-12-10

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Learning from practice

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