Journal
DIABETES CARE
Volume 37, Issue 8, Pages 2168-2176Publisher
AMER DIABETES ASSOC
DOI: 10.2337/dc13-2759
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Funding
- Eli Lilly and Company
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OBJECTIVE Compare the efficacy and safety of monotherapy with dulaglutide, a once-weekly GLP-1 receptor agonist, to metformin-treated patients with type 2 diabetes. The primary objective compared dulaglutide 1.5 mg and metformin on change from baseline glycosylated hemoglobin A(1c) (HbA(1c)) at 26 weeks. RESEARCH DESIGN AND METHODS This 52-week double-blind study randomized patients to subcutaneous dulaglutide 1.5 mg, dulaglutide 0.75 mg, or metformin. Patients (N = 807) had HbA(1c) >= 6.5% (>= 48 mmol/mol) and <= 9.5% (<= 80 mmol/mol) with diet and exercise alone or low-dose oral antihyperglycemic medication (OAM) monotherapy; OAMs were discontinued at beginning of lead-in period. RESULTS At 26 weeks, changes from baseline HbA(1c) (least squares [LS] mean +/- SE) were: dulaglutide 1.5mg, -0.78 +/- 0.06% (-8.5 +/- 0.70 mmol/mol); dulaglutide 0.75mg, -0.71 +/- 0.06% (-7.8 +/- 0.70 mmol/mol); and metformin, -0.56 +/- 0.06%(-6.1 +/- 0.70 mmol/mol). Dulaglutide 1.5 and 0.75 mg were superior to metformin (LS mean difference): -0.22% (-2.4 mmol/mol) and -0.15% (-1.6 mmol/mol) (one-sided P < 0.025, both comparisons), respectively. Greater percentages reached HbA(1c) targets <7.0% (<53 mmol/mol) and <= 6.5% (<= 48 mmol/mol) with dulaglutide 1.5 and 0.75mg compared with metformin (P < 0.05, all comparisons). No severe hypoglycemia was reported. Compared with metformin, decrease in weight was similar with dulaglutide 1.5 mg and smaller with dulaglutide 0.75 mg. Over 52 weeks, nausea, diarrhea, and vomiting were the most common adverse events; incidences were similar between dulaglutide and metformin. CONCLUSIONS Dulaglutide improves glycemic control and is well tolerated as monotherapy in patients with early stage type 2 diabetes.
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