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Diabetes Care. 2018 Dec;41(12):2552-2559. doi: 10.2337/dc18-1087. Epub 2018 Oct 23.

Efficacy and Safety of Dapagliflozin in Patients With Inadequately Controlled Type 1 Diabetes: The DEPICT-1 52-Week Study.

Abstract

OBJECTIVE:

This study evaluated the long-term safety and efficacy of dapagliflozin as an adjunct to adjustable insulin in patients with type 1 diabetes and inadequate glycemic control.

RESEARCH DESIGN AND METHODS:

DEPICT-1 (Dapagliflozin Evaluation in Patients With Inadequately Controlled Type 1 Diabetes) was a randomized (1:1:1), double-blind, placebo-controlled phase 3 study of dapagliflozin 5 mg and 10 mg in patients with type 1 diabetes (HbA1c 7.5-10.5% [58-91 mmol/mol]) (NCT02268214). The results of the 52-week study, consisting of the 24-week short-term and 28-week extension period, are reported here.

RESULTS:

Of the 833 patients randomized into the study, 708 (85%) completed the 52-week study. Over 52 weeks, dapagliflozin 5 mg and 10 mg led to clinically significant reductions in HbA1c (difference vs. placebo [95% CI] -0.33% [-0.49, -0.17] [-3.6 mmol/mol (-5.4, -1.9)] and -0.36% [-0.53, -0.20] [-3.9 mmol/mol (-5.8, -2.2)], respectively) and body weight (difference vs. placebo [95% CI] -2.95% [-3.83, -2.06] and -4.54% [-5.40, -3.66], respectively). Serious adverse events were reported in 13.4%, 13.5%, and 11.5% of patients in the dapagliflozin 5 mg, 10 mg, and placebo groups, respectively. Although hypoglycemia events were comparable across treatment groups, more patients in the dapagliflozin groups had events adjudicated as definite diabetic ketoacidosis (DKA; 4.0%, 3.4%, and 1.9% in dapagliflozin 5 mg, 10 mg, and placebo groups, respectively).

CONCLUSIONS:

Over 52 weeks, dapagliflozin led to improvements in glycemic control and weight loss in patients with type 1 diabetes, while increasing the risk of DKA.

PMID:
30352894
DOI:
10.2337/dc18-1087

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