Background And Aim: This study compares the cholesterol-lowering efficacy of atorvastatin and simvastatin in attainment of the National Cholesterol Education Program (NCEP) guidelines LDL-cholesterol (LDL-C) goal in patients with heterozygous familial hypercholesterolemia (HFH). The association of atorvastatin with significant changes of blood fibrinogen and other coagulative variables was also compared with that of simvastatin.
Methods And Results: In a 24-week study, 26 HFH patients (16 men, 10 women, mean age 55.1 +/- 11.3) were randomly assigned to receive atorvastatin or simvastatin. The initial daily dose of 10 mg was progressively raised to 20, 40 and 80 mg in patients who had not reached the NCEP LDL-C goal. Significant reductions of total and LDL-C (p < 0.001), triglycerides (p < 0.005) and apoB100 (p < 0.001) were observed in both groups. Atorvastatin caused greater reductions in total cholesterol (-42% vs -30%) (p < 0.001) and LDL-C (-50% vs -37%) (p < 0.01). Three patients treated with Atorvastatin (23%) and none of those treated with simvastatin reached the NCEP LDL-C goal at the end of the study. No significant departures from the fibrinogen and coagulative variable baselines were observed.
Conclusions: Atorvastatin has greater cholesterol-lowering efficacy than simvastatin in HFH.
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