Dose-response effect of single and combined clofibrate (Atromidin) and niceritrol (Perycit) treatment on serum lipids and lipoproteins in type II hyperlipoproteinaemia.

The dose-response effects of clofibrate and niceritrol on serum cholesterol and triglycerides (TG) were studied in 29 patients with Type IIa and IIb hyperlipoproteinaemia. In 17 patients, clofibrate and niceritrol were then given as combined treatment, and the effects of this combination on serum lipoproteins were studied. Clofibrate was given in three doses: 1.5,2 and 2.5 g/day. The optimum effect on serum TG and cholesterol in patients with Type IIa was observed with the 1.5 g dose and higher doses did not lower the serum lipids further. In patients with Type IIb the optimal clofibrate dose was 1.5-2 g/day. Niceritrol was then given in three doses: 3,45 and 6 g/day. In patients with Type IIa the serum TG concentration was not significantly affected by any dose used, whereas the reduction of the serum cholesterol concentration was dose dependent. In patients with Type IIb the reduction of both serum TG and cholesterol was dose dependent. Combined treatment with 2 g clofibrate and 3 g niceritrol resulted in a normal lipoprotein pattern i 15 out of 17 patients. The reduction of the serum lipids was approximately the same as during treatment with 6 g niceritrol/day. No additional side-effects were observed during combined treatment.