期刊
DIABETES CARE
卷 25, 期 7, 页码 1123-1128出版社
AMER DIABETES ASSOC
DOI: 10.2337/diacare.25.7.1123
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OBJECTIVE - The purpose of this study was to assess the effect of orlistat, a gastrointestinal lipase inhibitor, on body weight, glycerine control, and cardiovascular risk factors in metformin-treated type 2 diabetic patients. RESEARCH DESIGN AND METHODS - A 1-year multicenter, randomized, double-blind, placebo-controlled trial of 120 mg orlistat t.i.d. (n = 249) or placebo (it - 254) combined with a reduced-calorie diet was conducted in overweight and obese patients with suboptimal control of type 2 diabetes. RESULTS - After 1 year of treatment, mean (- SE) weight loss was greater in the orlistat than in the placebo group (-4.6 +/- 0.3% vs. -1.7 +/- 0.3% of baseline wt, P < 0.001). Orlistat treatment caused a greater improvement in glycemic control than placebo, as evidenced by a greater reduction in serum HbA(1c), adjusted for changes in metformin and sulfonylurea therapy (-0.90 +/- 0.08 vs. -0.61 +/- 0.08, P = 0.014) a greater proportion of patients achieving decreases in HbA(1c) of greater than or equal to0.5 and greater than or equal to1.0% (both P < 0.01); and a greater reduction in fasting serum glucose (-2.0 +/- 0.2 vs. -0.7 +/- 0.2 mmol/l, P = 0.001). Compared With the placebo group, patients treated with orlistat also had greater decreases in total cholesterol, LDL cholesterol, and systolic blood pressure (all P < 0.05). Although more subjects treated with orlistat experienced gastrointestinal side effects than placebo (83 vs. 62%, P < 0.05), more subjects in the placebo group withdrew prematurely from the study than in the orlistat group (44 vs. 35%, P < 0.05). CONCLUSIONS - Orlistat is a useful adjunctive treatment for producing weight loss and improving glycemic control, serum lipid levels, and blood pressure in obese patients with type 2 diabetes who are being treated With metformin.
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