No abstract

Among patients with type 2 diabetes uncontrolled with metformin, exenatide QW plus dapagliflozin provided sustained improvements in glycemia, weight, and SBP over 52 weeks, with no unexpected safety findings.

In patients with type 2 diabetes uncontrolled with metformin, exenatide once weekly (QW) plus dapagliflozin produced greater reductions in glycemic parameters (glycated hemoglobin [HbA 1c ], fasting plasma glucose [FPG], and 2-h postprandial glucose [2-h PPG]), weight, and systolic blood pressure (SBP) than exenatide QW or dapagliflozin alone after 28 weeks of treatment in DURATION-8. Following a 24-week extension period, improvements were sustained at 52 weeks. In this study, we investigated efficacy and safety at 104 weeks after randomization. RESEARCH DESIGN AND METHODSDURATION-8 was a 104-week, multicenter, double-blind, randomized, active-controlled, phase 3 trial. In total, 695 adults (aged ‡18 years) with type 2 diabetes and inadequate glycemic control (HbA 1c 8.0-12.0% [64-108 mmol/mol]) despite stable metformin monotherapy ( ‡1,500 mg/day) were randomly assigned (1:1:1) to receive exenatide 2 mg QW plus once-daily dapagliflozin 10 mg, exenatide QW plus placebo, or dapagliflozin plus placebo. All 104-week evaluations were exploratory. RESULTSAt week 104, 431 (62.0%) patients completed treatment. The adjusted least squares mean change (SE) from baseline to week 104 in HbA 1c was greater with exenatide QW plus dapagliflozin (21.70% [0.11]) versus exenatide QW plus placebo (21.29% [0.12]; P 5 0.007) and dapagliflozin plus placebo (21.06% [0.12]; P < 0.001). Clinically relevant changes in FPG, 2-h PPG, weight, and SBP were also observed with exenatide QW plus dapagliflozin. There were no unexpected safety findings, and exenatide QW plus dapagliflozin was well tolerated, with no episodes of major hypoglycemia. CONCLUSIONSIn this exploratory analysis, among those individuals who completed the trial without rescue therapy, there was clinically relevant efficacy over 2 years with exenatide QW plus dapagliflozin, with no unexpected safety findings.

This post hoc analysis assessed the effects on cardiovascular risk factors of body weight, systolic blood pressure (SBP) and triglycerides after 28 weeks’ treatment with exenatide once weekly plus dapagliflozin, as compared with exenatide once weekly or dapagliflozin, in patient subpopulations from the DURATION‐8 trial of patients with type 2 diabetes mellitus (T2DM) inadequately controlled with metformin alone. Subgroups of patients were stratified according to their baseline body weight, SBP and triglyceride levels. Body weight, SBP and triglyceride levels were reduced across most respective subgroups, with no significant subgroup‐by‐treatment interactions. For each treatment, weight loss was numerically greater as baseline body mass index increased. SBP reductions were greater among patients with SBP ≥140 vs <140 mm Hg for exenatide once weekly plus dapagliflozin and exenatide once weekly. Reductions in triglyceride levels were greater among patients with baseline triglycerides <1.69 vs ≥1.69 mmol/L for each treatment. The combination of exenatide once weekly plus dapagliflozin reduced cardiovascular risk factors across baseline subgroups for each variable to a greater extent than did either individual drug; the greatest effects were observed in the high baseline subgroups for body weight and SBP.