Pharmacokinetics and pharmacodynamics of pravastatin alone and with cholestyramine in hypercholesterolemia.

Autor: Pan HY; Squibb Institute for Medical Research, Division of Medical Affairs, Princeton, NJ 08543-4000., DeVault AR, Swites BJ, Whigan D, Ivashkiv E, Willard DA, Brescia D
Jazyk: angličtina
Zdroj: Clinical pharmacology and therapeutics [Clin Pharmacol Ther] 1990 Aug; Vol. 48 (2), pp. 201-7.
DOI: 10.1038/clpt.1990.136
Abstrakt: The pharmacokinetics, pharmacodynamics, and safety of pravastatin, a new selective 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitor, were evaluated during monotherapy and with subsequent concomitant cholestyramine therapy in 33 patients with primary hypercholesterolemia in this randomized study. After 4 weeks, pravastatin monotherapy (5 mg, 10 mg, and 20 mg twice daily) significantly decreased total cholesterol by 17% to 24% (p less than 0.001 versus baseline) and low-density lipoprotein cholesterol by 23% to 35% (p less than 0.001). High-density lipoprotein cholesterol increased by 8% to 9%, and triglycerides decreased by 6% to 9%. The area under the serum concentration-time curve and maximum serum concentration of pravastatin showed dose-proportionality; time to maximum serum concentration and serum elimination half-life were independent of dose. When added to pravastatin therapy, cholestyramine enhanced the lipid-lowering effects of pravastatin. After 4 weeks of combination therapy, total cholesterol was reduced by 32% to 38% (p less than 0.001 versus baseline), and low-density lipoprotein cholesterol was reduced by 47% to 56% (p less than 0.001). High-density lipoprotein cholesterol increased by 11% to 18% (p less than 0.05). Pravastatin was well tolerated; no clinical adverse events directly attributable to the drug were reported.
Databáze: MEDLINE