Efficacy of combination of atorvastatin and micronised fenofibrate in the treatment of severe mixed hyperlipidemia

Abstract.

Objectives: In patients with mixed lipid disorders, monotherapy may not effectively control all lipid abnormalities. We undertook this study to assess the efficacy of fenofibrate in combination with atorvastatin in patients with severe mixed dyslipidemia. Methods: This was an 18-week, open-label study conducted in our lipid clinic. After a 6-week dietary baseline phase, patients received 200 mg/day micronised fenofibrate for 6 weeks. At the end of this period the subjects discontinued this treatment and received 40 mg/day atorvastatin for 6 weeks. Finally 200 mg/day of micronised fenofibrate was added to the statin therapy. Results: Administration of micronised fenofibrate reduced serum triglycerides (P<0.01) and total cholesterol and low-density lipoprotein (LDL) cholesterol (P<0.05 for both parameters), while it evoked a significant increase in serum high-density lipoprotein (HDL) cholesterol levels (P<0.05). Atorvastatin monotherapy induced a more pronounced decrease of total and LDL cholesterol. However, plasma triglycerides, although significantly lower than baseline values (P<0.05), were higher than the values observed during treatment with fenofibrate. Moreover, serum HDL cholesterol concentrations were higher during fibrate therapy than during the statin one. During the combination therapy, the decrease in triglycerides was greater than that observed with fenofibrate alone, while the decrease in LDL cholesterol was more pronounced than that observed with atorvastatin alone. Conclusion: The combination of atorvastatin with micronised fenofibrate in patients with severe mixed dyslipidemia may have a favourable effect on some major coronary artery disease risk factors.