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Open Access Highly Accessed Original investigation

Assessment of the cardiovascular safety of saxagliptin in patients with type 2 diabetes mellitus: pooled analysis of 20 clinical trials

Nayyar Iqbal1*, Artist Parker2, Robert Frederich1, Mark Donovan1 and Boaz Hirshberg2

Author Affiliations

1 Bristol-Myers Squibb, Route 206 & Providence Line Rd, Princeton, NJ 08543, USA

2 AstraZeneca, 1800 Concord Pike, Wilmington, DE 19850, USA

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Cardiovascular Diabetology 2014, 13:33  doi:10.1186/1475-2840-13-33

Published: 4 February 2014

Abstract

Background

It is important to establish the cardiovascular (CV) safety profile of novel antidiabetic drugs.

Methods

Pooled analyses were performed of 20 randomized controlled studies (N = 9156) of saxagliptin as monotherapy or add-on therapy in patients with type 2 diabetes mellitus (T2DM) as well as a subset of 11 saxagliptin + metformin studies. Adjudicated major adverse CV events (MACE; CV death, myocardial infarction [MI], and stroke) and investigator-reported heart failure were assessed, and incidence rates (IRs; events/100 patient-years) and IR ratios (IRRs; saxagliptin/control) were calculated (Mantel-Haenszel method).

Results

In pooled datasets, the IR point estimates for MACE and individual components of CV death, MI, and stroke favored saxagliptin, but the 95% CI included 1. IRR (95% CI) for MACE in the 20-study pool was 0.74 (0.45, 1.25). The Cox proportional hazard ratio (95% CI) was 0.75 (0.46, 1.21), suggesting no increased risk of MACE in the 20-study pool. In the 11-study saxagliptin + metformin pool, the IRR for MACE was 0.93 (0.44, 1.99). In the 20-study pool, the IRR for heart failure was 0.55 (0.27, 1.12).

Conclusions

Analysis of pooled data from 20 clinical trials in patients with T2DM suggests that saxagliptin is not associated with an increased CV risk.

Keywords:
Dipeptidyl peptidase-4 inhibitor; Major adverse cardiovascular events; Saxagliptin; Type 2 diabetes mellitus