Atorvastatin in low-density lipoprotein apheresis-treated patients with homozygous and heterozygous familial hypercholesterolemia

Abstract

To further reduce low-density lipoprotein-cholesterol (LDL-C), atorvastatin treatment was investigated in patients with homozygous (n = 4) and heterozygous (n = 10) familial hypercholesterolemia (FH) undergoing LDL-apheresis. After a wash-out period of 4 weeks, atorvastatin therapy was administered in escalating doses (10 up to 80 mg/d). LDL-apheresis was performed at weekly intervals during the entire study period. The LDL-C concentration decreased from 240 +/- 35 mg/dL after the wash-out period to 206 +/- 63 mg/dL during treatment with 10 mg atorvastatin. Four weeks of treatment with 80 mg atorvastatin resulted in an additional 24% (P <.05) reduction in LDL-C. LDL-C increased from 28.8 +/- 14.2 mg/dL immediately after apheresis to 156.6 +/- 25.5 mg/dL at day 7. LDL-C values remained below the recommended target range for an extended duration of 48 hours in atorvastatin-treated patients, but not in those without concomitant lipid-lowering drug therapy. The levels of high-density lipoprotein-cholesterol (HDL-C) and plasma fibrinogen were unchanged during the entire study period. No adverse events were observed with atorvastatin treatment. Finally, high-dose atorvastatin therapy resulted in a 40% reduction in LDL-apheresis sessions in these patients. Our results show that LDL-C reduction by atorvastatin is a safe and effective therapy in LDL-apheresis patients with severe heterozygous or homozygous FH.