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  • Title: A post-hoc analysis of the comparative efficacy of canagliflozin and glimepiride in the attainment of type 2 diabetes-related quality measures.
    Author: Patel CA, Bailey RA, Vijapurkar U, Meininger G, Blonde L.
    Journal: BMC Health Serv Res; 2016 Aug 05; 16(a):356. PubMed ID: 27495291.
    Abstract:
    BACKGROUND: The randomized, double-blind CANTATA-SU (CANagliflozin Treatment And Trial Analysis Sulfonyl Urea) clinical trial compared the use of canagliflozin (100 mg or 300 mg) and maximally tolerated glimepiride (6-8 mg) over 104 weeks as add-on therapy for patients with type 2 diabetes mellitus (T2DM) inadequately controlled with metformin. Compared with glimepiride, canagliflozin use was associated with durable reductions in glycated hemoglobin (A1C), blood pressure (BP), and body weight. The aim of this post-hoc analysis of the CANTATA-SU trial was to assess the comparative efficacy of canagliflozin and glimepiride in the attainment of recently updated diabetes-related quality measures (QMs) for up to 104 weeks of treatment. METHODS: This post-hoc analysis evaluated the proportions of patients achieving individual diabetes-related QMs using data from the randomized, double-blind, Phase 3 CANTATA-SU trial. Change in A1C from baseline, and proportions of the study population achieving QMs: A1C <7.0 %, <8.0 %, and >9.0 % were assessed. Secondary endpoints included change in BP from baseline, and the proportions of the study population achieving QMs related to BP and body weight. RESULTS: The proportions of patients in the canagliflozin 100 mg, canagliflozin 300 mg, and glimepiride groups meeting criteria for all QMs were similar at baseline. At 52 and 104 weeks of treatment, canagliflozin 100 mg and canagliflozin 300 mg provided better or similar reductions in A1C from baseline and achievement of glycemic control QMs compared with glimepiride. At 52 and 104 weeks of treatment, the attainment of QMs related to reductions in body weight and BP all favored canagliflozin compared with glimepiride. Canagliflozin was associated with lower incidence of documented hypoglycemia and severe hypoglycemia compared with glimepiride. CONCLUSIONS: Using the recently adjusted and currently accepted diabetes-related QMs, this analysis observed superior glycemic control with canagliflozin compared with maximally tolerated glimepiride in patients with T2DM who were previously poorly controlled on metformin monotherapy. Compared with maximally tolerated glimepiride, canagliflozin resulted in better achievement of diabetes-related QMs related to weight loss and BP, and was associated with lower incidences of hypoglycemic events. TRIAL REGISTRATION: Clinical trial registry name: CANagliflozin Treatment And Trial Analysis-Sulfonylurea (CANTATA-SU) SGLT2 Add-on to Metformin Versus Glimepiride. CLINICAL TRIAL REGISTRATION NUMBER: NCT00968812 , registered August 28, 2009.
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