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Meta-analysis of the impact of alpha-glucosidase inhibitors on incident diabetes and cardiovascular outcomes.


ABSTRACT: BACKGROUND:Alpha-glucosidase inhibitors (AGIs) have been shown to reduce incident type 2 diabetes but their impact on cardiovascular (CV) disease remains controversial. We sought to identify the overall impact of AGIs with respect to incident type 2 diabetes in individuals with impaired glucose tolerance (IGT), and CV outcomes in those with IGT or type 2 diabetes. METHODS:We used PubMed and SCOPUS to identify randomized controlled trials reporting the incidence of type 2 diabetes and/or CV outcomes that had compared AGIs with placebo in populations with IGT or type 2 diabetes, with or without established CV disease. Eligible studies were required to have ≥ 500 participants and/or ≥ 100 endpoints of interest. Meta-analyses of available trial data were performed using random effects models to calculate hazard ratios (HRs) and 95% confidence intervals (CIs) for incident type 2 diabetes and CV outcomes. RESULTS:Of ten trials identified, three met our inclusion criteria for incident type 2 diabetes and four were eligible for CV outcomes. The overall HR (95% CI) comparing AGI with placebo for incident type 2 diabetes was 0.77 (0.67-0.88), p < 0.0001, and for CV outcomes was 0.98 (0.89-1.10), p = 0.85. There was little to no heterogeneity between studies, with I2 values of 0.03% (p = 0.43) and 0% (p = 0.79) for the two outcomes respectively. CONCLUSIONS:Allocation of people with IGT to an AGI significantly reduced their risk of incident type 2 diabetes by 23%, whereas in those with IGT or type 2 diabetes the impact on CV outcomes was neutral.

SUBMITTER: Coleman RL 

PROVIDER: S-EPMC6798440 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature

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Meta-analysis of the impact of alpha-glucosidase inhibitors on incident diabetes and cardiovascular outcomes.

Coleman Ruth L RL   Scott Charles A B CAB   Lang Zhihui Z   Bethel M Angelyn MA   Tuomilehto Jaakko J   Holman Rury R RR  

Cardiovascular diabetology 20191017 1


<h4>Background</h4>Alpha-glucosidase inhibitors (AGIs) have been shown to reduce incident type 2 diabetes but their impact on cardiovascular (CV) disease remains controversial. We sought to identify the overall impact of AGIs with respect to incident type 2 diabetes in individuals with impaired glucose tolerance (IGT), and CV outcomes in those with IGT or type 2 diabetes.<h4>Methods</h4>We used PubMed and SCOPUS to identify randomized controlled trials reporting the incidence of type 2 diabetes  ...[more]

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