Long-term efficacy and safety of empagliflozin monotherapy in drug-naïve patients with type 2 diabetes in Indian subgroup: Results from a 76-week extension trial of phase iii, double-blind, randomized study

Sunil Gupta, Shehla Shaikh, Pooja Joshi, Shraddha Bhure, Viraj Suvarna

Indian Journal of Endocrinology and Metabolism 2017 21(2):286-292

Background and Objectives: Empagliflozin, a sodium glucose cotransporter-2 inhibitor, was recently evaluated in a randomized, controlled trial (RCT) in drug-naïve Type 2 diabetes mellitus (T2DM) patients managed on diet and exercise therapy. Efficacy and safety of empagliflozin in Indian subgroup of patients from a 76-week extension study of the initial multicentric RCT are reported in this article. Materials and Methods: In this study, patients were randomized to empagliflozin 10 mg (E10, n = 24), empagliflozin 25 mg (E25, n = 29), placebo (n = 28) and sitagliptin 100 mg (S100, n = 27). Exploratory efficacy endpoints were changed from baseline to week 76 in glycosylated hemoglobin (HbA1c, %) and fasting blood glucose (mg/dL) along with body weight (kg) and blood pressure (BP) (mmHg) reduction. Safety analysis included clinically relevant adverse events (AEs). Results: In 108 randomized patients, adjusted mean reduction in HbA1c compared to placebo was significant with E10 (−0.81, 95% confidence interval (CI) −1.33, −0.28; P = 0.0029) and E25 (−1.11, 95% CI − 1.60, −0.61; P < 0.0001). HbA1c below 7% at week 76 was achieved in significantly higher number of patients with E10 (20.8%, P < 0.0001) and E25 (28.0%, P < 0.0001). There was significant reduction in adjusted mean weight as compared to placebo with E10 (−1.41, 95% CI − 2.51, −0.31; P = 0.0125) and E25 (−1.50, 95% CI − 2.54, −0.46; P = 0.0051) but nonsignificant with S100 (−0.75 95% CI − 1.86, −0.36; P = 0.1842). BP reduction was numerically higher with empagliflozin compared to placebo. AEs were similar in all treatment groups except for genital infections which were more common in E10 (20.8%) but not in E25 (3.4%) as compared to placebo (3.6%). All treatments were well tolerated with no severe AEs. Conclusion: Treatment with empagliflozin was well tolerated and resulted in sustained glycemic efficacy over long-term (76 weeks) in drug-naïve Indian T2DM patients.

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