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Am Heart J. 2001 Sep;142(3):489-97.

Effects of sibutramine on body weight and serum lipids: a double-blind, randomized, placebo-controlled study in 322 overweight and obese patients with dyslipidemia.

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  • 1Kansas Foundation for Clinical Pharmacology, Radiant Research-Kansas City, Overland Park, Kan, USA.

Abstract

BACKGROUND:

Cardiovascular risk factors associated with obesity, including dyslipidemia, can be improved by weight loss. The main dyslipidemia associated with obesity is elevated serum triglyceride and decreased serum high-density lipoprotein cholesterol (HDL-C) levels.

METHODS:

A total of 322 obese patients (body mass index > or = 27) with serum triglyceride levels > or = 250 mg/dL and < or = 1000 mg/dL and serum HDL-C levels < or = 45 mg/dL (women) and < or = 40 mg/dL (men) were placed on a step I American Heart Association diet and subsequently randomized to sibutramine 20 mg (n = 162) or placebo (n = 160) once daily for 24 weeks.

RESULTS:

Patients taking sibutramine had significantly greater mean weight loss than those receiving placebo (-4.9 kg vs -0.6 kg, P < or = .05). Forty-two percent of the sibutramine group lost > or = 5% of baseline weight and 12% lost > or = 10% compared with 8% and 3%, respectively, of the placebo group (P < or = .05). Mean decreases in serum triglyceride levels among 5% and 10% weight-loss responders in the sibutramine group were 33.4 mg/dL and 72.3 mg/dL, respectively, compared with an increase of 31.7 mg/dL among all patients receiving placebo (P < or = .05). Mean increases in serum HDL-C levels for 5% and 10% weight-loss responders in the sibutramine group were 4.9 mg/dL and 6.7 mg/dL, respectively, compared with an increase of 1.7 mg/dL among all patients in the placebo group (P < or = .05). Adverse events and discontinuation rates were similar in the sibutramine and placebo groups, although sibutramine-treated patients had mean increases in systolic and diastolic blood pressure of 2 to 3 mm Hg relative to placebo.

CONCLUSIONS:

In overweight and obese patients with high serum triglyceride levels and low serum HDL-C levels, treatment with sibutramine was associated with significant improvements in body weight and in serum triglyceride and HDL-C levels.

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