• Caroline K Kramer, Chang Ye, Sara Campbell, and Ravi Retnakaran.
• Leadership Sinai Centre for Diabetes, Mount Sinai Hospital, Toronto, Canada; Division of Endocrinology, University of Toronto, Toronto, Canada.
• JACC Heart Fail. 2018 Oct 1; 6 (10): 823-830.

ObjectivesThe authors conducted a systematic review and network meta-analysis of placebo-controlled, randomized clinical trials in the post-Food and Drug Administration (FDA) guidance era to formally compare the effects of 3 new classes of glucose-lowering drugs on hospitalization for heart failure (HF) in type 2 diabetes mellitus.BackgroundThe 2008 FDA Guidance for Industry launched an era of cardiovascular outcome trials for new glucose-lowering drugs in T2DM, including glucagon-like peptide (GLP)-1 agonists, dipeptidyl peptidase (DPP)-4 inhibitors, and sodium glucose co-transporter (SGLT)-2 inhibitors.MethodsWe searched Embase, PubMed, Cochrane Library, and clinicaltrials.gov between December 1, 2008, and November 24, 2017, for randomized placebo-controlled trials, and performed network meta-analyses by Bayesian approach using Markov-chain Monte Carlo simulation method to compare the effects of glucose-lowering drugs on risk of HF hospitalization and estimate the probability that each treatment is the most effective.ResultsNine studies were identified, yielding data on 87,162 participants. In the network meta-analysis, SGLT-2 inhibitors yielded the greatest risk reduction for HF hospitalization compared with placebo (relative risk [RR]: 0.56; 95% CrI [credibility interval]: 0.43 to 0.72). Moreover, SGLT-2 inhibitors were associated with significant risk reduction in pairwise comparisons with both GLP-1 agonists (RR: 0.59; 95% CrI: 0.43 to 0.79) and DPP-4 inhibitors (RR: 0.50; 95% CrI: 0.36 to 0.70). Ranking of the classes revealed 99.6% probability of SGLT-2 inhibitors being the optimal treatment for reducing the risk of this outcome, followed by GLP-1 agonists (0.27%) and DPP-4 inhibitors (0.1%).ConclusionsCurrent evidence suggests that SGLT-2 inhibitors are more effective than either GLP-1 agonists or DPP-4 inhibitors for reducing the risk of hospitalization for HF in type 2 diabetes mellitus.Copyright © 2018 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.

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