期刊
INTERNATIONAL JOURNAL OF OBESITY
卷 31, 期 3, 页码 494-499出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/sj.ijo.0803446
关键词
ATL-962; cetilistat; gastro-intestinal; lipase inhibitor; tolerability; weight loss
Objective: To determine the efficacy, safety and tolerability of cetilistat (ATL-962), a novel inhibitor of gastrointestinal (GI) lipases, in obese patients. Design: Phase II, multicentre, randomized, placebo-controlled, parallel group study. Enrolled patients (N = 442) were advised a hypocaloric diet ( deficient by 500 kcal per day, 30% of calories from fat) for a 2-week run-in period. Patients who satisfied the entry criteria ( N 371) continued on the hypocaloric diet and were randomized to either placebo or one of three different doses of cetilistat (60 mg three times daily t.i.d., 120 mg t.i.d. and 240 mg t.i.d.) for 12 weeks, followed by a 4-week post-treatment follow-up. Safety, tolerability and body weight were assessed, together with other parameters associated with obesity. Outcome measures: The primary outcome measure was absolute change in body weight from baseline. Secondary outcomes included the proportion of patients achieving pre-defined weight loss targets, changes from baseline in waist circumference and in blood lipids. GI tolerability criteria were specifically assessed, as was safety. Results: Treatment with cetilistat reduced mean body weight to similar extents at all doses, which were statistically significant compared with placebo(60 mg t.i.d. 3.3 kg, P < 0.03; 120 mg t.i.d. 3.5 kg, P = 0.02; 240 mg t.i.d. 4.1 kg, P < 0.001). Total serum and low-density lipoprotein cholesterol levels were likewise significantly reduced by 3-11% at all doses of cetilistat. Cetilistat was well tolerated. The frequency of withdrawal owing to treatment-emergent adverse events was similar between cetilistat-treated groups (5.3-7.6%) and placebo (7.6%). Adverse events were generally mild to moderate in intensity, occurred on only one occasion and were mostly GI in nature. The incidence of GI adverse events was increased in the cetilistat-treated groups compared to placebo. However, those GI adverse events, such as flatus with discharge and oily spotting, only occurred in 1.8-2.8% of subjects in the cetilistat-treated groups. Conclusions: Cetilistat produced a clinically and statistically significant weight loss in obese patients in this short-term 12-week study. This was accompanied by significant improvements in other obesity-related parameters. Cetilistat treatment was well tolerated. The risk-benefit demonstrated in this study in terms of weight loss vs intolerable GI adverse effects shows that cetilistat merits further evaluation for the pharmacotherapy of obesity and related disorders.
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