A randomized placebo controlled trial on the effects of simvastatin, a HMG-CoA reductase inhibitor, on blood lipids and fibrinolytic parameters.
Coronary artery disease is frequently associated with disturbed blood lipids and with a deficient blood fibrinolytic capacity. In order to investigate a possible link between hypercholesterolemia and hypofibrinolysis, we have investigated the effect of simvastatin, a HMG-CoA reductase inhibitor, on blood lipids and fibrinolytic parameters in a double blind, randomized, placebo controlled study design. Twenty-four male patients, aged between 42 and 65 years, with angiographically confirmed coronary artery disease, were selected from a series of 731 consecutive patients on the basis of a fasting serum cholesterol level of more than 250 mg/dl and a plasma PAI-1 level of more than 60 ng/ml. Patients were randomly assigned to 20 mg of simvastatin daily (Group I), or placebo (Group II), for four weeks, followed by doubling of the dose for another four weeks. Blood samples were obtained at baseline and at 4 and 8 weeks. Groups I and II did not differ significantly at baseline. As expected, simvastatin produced a significant reduction in serum levels of total cholesterol (33 +/- 12 and 36 +/- 12 percent, mean +/- SD, after 4 and 8 weeks respectively, p less than 0.001 vs baseline), LDL-cholesterol (36 +/- 5 and 43 +/- 6 percent respectively, p less than 0.001 vs baseline) and apolipoprotein-B (20 +/- 29 and 23 +/- 30 percent respectively, p less than 0.05 vs baseline), whereas these parameters did not change significantly in the placebo group.(ABSTRACT TRUNCATED AT 250 WORDS)
Division of Cardiology, University of Leuven, Belgium.
H
H
Jacobs
F
F
Van de Werf
E
E
Lesaffre
H
H
De Geest
D
D
Collen
D000328:Adult; D000368:Aged; D000924:Anticholesteremic Agents / Q000627:therapeutic use*; D001055:Apolipoproteins B / Q000032:analysis; D001780:Blood Coagulation Tests; D002784:Cholesterol / Q000097:blood; D004311:Double-Blind Method; D006801:Humans; D006904:Hydroxymethylglutaryl-CoA Synthase / Q000037:antagonists & inhibitors*; D006937:Hypercholesterolemia / Q000188:drug therapy*; D008148:Lovastatin / Q000031:analogs & derivatives* / Q000627:therapeutic use; D008297:Male; D008875:Middle Aged; D015849:Plasminogen Inactivators / Q000032:analysis; D019821:Simvastatin
D000924:Anticholesteremic Agents; D001055:Apolipoproteins B; D015849:Plasminogen Inactivators; D002784:Cholesterol; D008148:Lovastatin; D019821:Simvastatin; D006904:Hydroxymethylglutaryl-CoA Synthase