Dose-dependent effects of the once-daily GLP-1 receptor agonist lixisenatide in patients with Type 2 diabetes inadequately controlled with metformin: a randomized, double-blind, placebo-controlled trial.

Autor: Ratner, R. E., Rosenstock, J., Boka, G.
Předmět:
Zdroj: Diabetic Medicine; Sep2010, Vol. 27 Issue 9, p1024-1032, 9p, 3 Charts, 2 Graphs
Abstrakt: Diabet. Med. 27, 1024–1032 (2010) Aims To evaluate the dose–response relationship of lixisenatide (AVE0010), a glucagon-like peptide-1 (GLP-1) receptor agonist, in metformin-treated patients with Type 2 diabetes. Methods Randomized, double-blind, placebo-controlled, parallel-group, 13 week study of 542 patients with Type 2 diabetes inadequately controlled [glycated haemoglobin (HbA1c) ≥ 7.0 and < 9.0% (≥ 53 and < 75 mmol/mol)] on metformin (≥ 1000 mg/day) treated with subcutaneous lixisenatide doses of 5, 10, 20 or 30 μg once daily or twice daily or placebo. The primary end-point was change in HbA1c from baseline to 13 weeks in the intent-to-treat population. Results Lixisenatide significantly improved mean HbA1c from a baseline of 7.55% (59.0 mmol/mol); respective mean reductions for 5, 10, 20 and 30 μg doses were 0.47, 0.50, 0.69 and 0.76% (5.1, 5.5, 7.5 and 8.3 mmol/mol), on once-daily and 0.65, 0.78, 0.75 and 0.87% (7.1, 8.5, 8.2 and 9.5 mmol/mol) on twice-daily administrations vs. 0.18% (2.0 mmol/mol) with placebo (all P < 0.01 vs. placebo). Target HbA1c < 7.0% (53 mmol/mol) at study end was achieved in 68% of patients receiving 20 and 30 μg once-daily lixisenatide vs. 32% receiving placebo ( P < 0.0001). Dose-dependent improvements were observed for fasting, postprandial and average self-monitored seven-point blood glucose levels. Weight changes ranged from −2.0 to −3.9 kg with lixisenatide vs. −1.9 kg with placebo. The most frequent adverse event was mild-to-moderate nausea . Conclusions Lixisenatide significantly improved glycaemic control in mildly hyperglycaemic patients with Type 2 diabetes on metformin. Dose–response relationships were seen for once- and twice-daily regimens, with similar efficacy levels, with a 20 μg once-daily dose of lixisenatide demonstrating the best efficacy-to-tolerability ratio. This new, once-daily GLP-1 receptor agonist shows promise in the management of Type 2 diabetes to be defined further by ongoing long-term studies. [ABSTRACT FROM AUTHOR]
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