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  • Title: Dapagliflozin versus saxagliptin as add-on therapy in patients with type 2 diabetes inadequately controlled with metformin.
    Author: Rosenstock J, Mathieu C, Chen H, Garcia-Sanchez R, Saraiva GL.
    Journal: Arch Endocrinol Metab; 2018 Aug; 62(4):424-430. PubMed ID: 30304106.
    Abstract:
    OBJECTIVE: This analysis compared the efficacy and safety of the sodium-glucose cotransporter-2 (SGLT2) inhibitor, dapagliflozin, and the dipeptidyl peptidase-4 (DPP4) inhibitor, saxagliptin, both added on to metformin. MATERIALS AND METHODS: This was a post-hoc analysis from a double-blind, randomized, 24-week clinical trial (NCT01606007) of patients with type 2 diabetes (T2D) inadequately controlled with metformin. We compared the dapagliflozin 10 mg (n = 179) and saxagliptin 5 mg (n = 176) treatment arms. RESULTS: Dapagliflozin showed significantly greater mean reductions versus saxagliptin in HbA1c (difference versus saxagliptin [95% CI]: -0.32% [-0.54, -0.10]; p < 0.005), fasting plasma glucose (-0.98 [-1.42, -0.54] mmol/L; p < 0.0001), body weight (-2.39 [-3.08, -1.71] kg; p < 0.0001) and systolic blood pressure (SBP) (-3.89 [-6.15, -1.63] mmHg; p < 0.001). More dapagliflozintreated than saxagliptin-treated patients achieved the composite endpoint of HbA1c reduction ≥ 0.5%, weight loss ≥ 2 kg, SBP reduction ≥ 2 mmHg and no major/minor hypoglycemia (24% versus 7%). No major events of hypoglycemia were reported. More patients on dapagliflozin (6%) versus saxagliptin (0.6%) experienced genital infections. CONCLUSION: Dapagliflozin demonstrated greater glycemic efficacy than saxagliptin with additional benefits on weight and SBP, and the safety profile was consistent with previous studies.
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