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Circulation Journal
Vol. 75 (2011) No. 10 p. 2496-2504

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http://doi.org/10.1253/circj.CJ-11-0391

Vascular Medicine

Background: Ezetimibe-plus-statin therapy has been reported to provide greater reduction in low-density lipoprotein cholesterol (LDL-C) level than statin monotherapy. The aim of the present study was to evaluate the relationship between LDL-C lowering effect and baseline cholesterol absorption and synthesis markers in patients with coronary artery disease (CAD). Methods and Results: A total of 171 patients with CAD whose LDL-C level was ≥100mg/dl after treatment with atorvastatin (10mg/day) or rosuvastatin (2.5mg/day) for 4 weeks were assigned to additionally receive ezetimibe (10mg/day) plus a statin or a double dose of statin for 12 weeks. The decreases in LDL-C (-30.0±15.6mg/dl vs. -19.2±14.2mg/dl) and the ratio of campesterol, an absorption marker, to total cholesterol levels (-1.35±0.90μg/mg vs. 0.33±0.74μg/mg) were greater in the ezetimibe-plus-statin group (P<0.05, respectively). The decrease in LDL-C level in the ezetimibe-plus-statin group was greatest in patients with baseline levels of higher absorption and lower synthesis markers and smallest in patients with baseline levels of lower absorption and higher synthesis markers (-34.3±15.6mg/dl vs. -21.5±16.7mg/dl, P<0.05). The decrease in LDL-C did not differ, irrespective of baseline levels of cholesterol absorption and synthesis markers, in the double-dose statin group, and was similar to that in patients with lower absorption and higher synthesis markers in the ezetimibe-plus-statin group. Conclusions: Ezetimibe-plus-statin therapy may be useful for lowering LDL-C level, irrespective of baseline levels of cholesterol absorption and synthesis markers. (Circ J 2011; 75: 2496-2504)

Copyright © 2011 THE JAPANESE CIRCULATION SOCIETY

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