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  • Title: Treatment of hypercholesterolemia with the HMG CoA reductase inhibitor, simvastatin.
    Author: Berger GM, Marais AD, Seftel HC, Baker SG, Mendelsohn D, Welsh NH, Joffe BI.
    Journal: Cardiovasc Drugs Ther; 1989 Apr; 3(2):219-27. PubMed ID: 2487533.
    Abstract:
    We report the results of a two center study on the use of the HMG Co A reductase inhibitor, simvastatin, in 44 patients suffering from familial hypercholesterolemia or from primary hypercholesterolemia of unknown etiology. The study included two separate phases: Phase I was part of a multicenter, 4-week, placebo-controlled trial; phase II was a 6-month, open extension trial, the object of which was to reduce low density lipoprotein (LDL) cholesterol levels to below the 50th percentile by increasing the dose of simvastatin, by the use of additional lipid-lowering medication, or both. Our phase I results were commensurate with those reported for the entire international cohort of 272 patients, indicating a clear dose-response relationship, with approximately 75% of the maximum reduction in LDL-C levels being achieved with 20 mg/day and over 90% of the maximum being achieved with 40 mg of simvastatin per day. In the open extension trial, the results from the 2 centers were essentially similar. Total cholesterol fell by 29% on the 20 mg/day dose and by 34% on the full dose of 40 mg/day. LDL-C levels were reduced by 40% on the 40 mg/day schedule, and triglycerides also fell to between 20% and 40% below baseline values. HDL-C concentration rose by 14% and 17.6%. The effects of simvastatin were uniform, both within and between the two cohorts. The addition of cholestyramine caused a further substantial reduction in LDL-cholesterol to below 55% of the initial value in four patients, whereas bezafibrate further enhanced the fall in triglycerides and the increase in high-density lipoprotein cholesterol, but had only a slight effect on LDL-C levels.(ABSTRACT TRUNCATED AT 250 WORDS)
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