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An indirect comparison of HbA1c treatment effect with albiglutide and exenatide 2.0 mg QW using the Bucher method

Authors Martin A, Parks D

Received 18 November 2015

Accepted for publication 18 February 2016

Published 19 May 2016 Volume 2016:9 Pages 163—168

DOI https://doi.org/10.2147/DMSO.S100775

Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Colin Mak

Peer reviewer comments 4

Editor who approved publication: Professor Ming-Hui Zou


Alan A Martin,1 Daniel Parks2

1Department of Value Evidence Analytics, GlaxoSmithKline, Uxbridge, Middlesex, UK; 2Department of Value Evidence Analytics, GlaxoSmithKline, Collegeville, PA, USA

Abstract: No head-to-head comparisons exist between once-weekly (QW) glucagon-like peptide-1 receptor agonists; accordingly, this indirect comparison was conducted to evaluate the comparative efficacy of QW albiglutide vs QW exenatide. Following a systematic literature search, it was determined that HARMONY 7 and DURATION 6, Phase III trials for albiglutide and exenatide, respectively, were similar in study design and baseline characteristics and included a common comparator arm, making them suitable for an indirect comparison using the Bucher method. The primary endpoint of change from baseline in glycated hemoglobin (HbA1c) with albiglutide 50 mg QW and exenatide 2.0 mg QW was compared and tested for noninferiority. The indirect comparison showed a treatment difference of 0.0% (95% confidence interval: -0.189% to 0.189%) in mean change in HbA1c from baseline, and albiglutide 50 mg was noninferior to exenatide 2.0 mg QW at the noninferiority margin of 0.3%. In the absence of a head-to-head trial, these results can be used in pharmacoeconomic analysis and to inform health technology assessment and clinical decision making.

Keywords: albiglutide, exenatide 2.0 mg QW GLP-1 RA, Bucher method

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