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Ezetimibe, a promising lipid-lowering agent for the treatment of dyslipidaemia in HIV-infected patients with poor response to statins.

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Methods: Ezetimibe, 10 mg/day, was added to pravastatin 20 mg/day, while patients maintained the same antiretroviral regimen. Determinations of total, LDL-, and high density lipoprotein (HDL)-cholesterol, triglycerides, apoproteins, and inflammatory factors (homocystein and C-reactive protein) were performed at baseline, and at weeks 6, 12, and 24. Liver enzymes and creatinine phosphokinase were also assessed. Protease inhibitor (PI) or non-nucleoside reverse transcriptase inhibitor (NNRTI) Cmin was determined just before and 12 weeks after ezetimibe introduction.

Results: At week 24, 61.5% of patients achieved the endpoint of the study (LDL-cholesterol 130 mg/dl). Significant declines in mean total and LDL-cholesterol levels were observed between baseline and weeks 6, 12, and 24, irrespective of antiretroviral type (PI or NNRTI). Mean HDL-cholesterol and apoprotein A increased significantly. No patients discontinued therapy due to intolerance or presented toxicity of grade 2 or more. No differences were observed in lopinavir or nevirapine Cmin measured just before and 12 weeks after ezetimibe introduction.

Conclusion: At week 24, 61.5% of patients achieved the endpoint of the study (LDL-cholesterol 130 mg/dl). Significant declines in mean total and LDL-cholesterol levels were observed between baseline and weeks 6, 12, and 24, irrespective of antiretroviral type (PI or NNRTI). Mean HDL-cholesterol and apoprotein A increased significantly. No patients discontinued therapy due to intolerance or presented toxicity of grade 2 or more. No differences were observed in lopinavir or nevirapine Cmin measured just before and 12 weeks after ezetimibe introduction.

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