Premium
Single‐Dose Pharmacokinetics of Pravastatin and Metabolites in Patients with Renal Impairment
Author(s) -
Halstenson Charles E.,
Triscari Joseph,
DeVault Arthur,
Shapiro Bruce,
Keane William,
Pan Henry
Publication year - 1992
Publication title -
the journal of clinical pharmacology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.92
H-Index - 116
eISSN - 1552-4604
pISSN - 0091-2700
DOI - 10.1002/j.1552-4604.1992.tb03816.x
Subject(s) - pravastatin , pharmacokinetics , renal function , volume of distribution , creatinine , endocrinology , metabolite , medicine , urology , elimination rate constant , renal physiology , chemistry , cholesterol
The disposition of a single 20‐mg oral dose of pravastatin was assessed in subjects with various degrees of renal function. Sixteen subjects (13 males, 3 females) with creatinine clearance values ranging from 15 to 112 mL/min/1.73 m 2 completed the study. Area under the serum concentration‐time curve, maximum serum concentration, time to maximum serum concentration, terminal serum elimination half‐life, apparent clearance, and apparent volume of distribution for pravastatin were not affected by renal impairment, whereas the renal clearance of pravastatin decreased as creatinine clearance decreased (r 2 = 0.697, P <.001). The area under the serum concentration‐time curve and time to maximum serum concentration of SQ 31,945 (a hepatic metabolite) increased in patients with renal impairment, whereas the terminal elimination rate constant and renal clearance of SQ 31,945 significantly decreased as a function of creatinine clearance. The renal clearance of another metabolite (SQ 31,906) also significantly declined with decreasing renal function. This single‐dose study demonstrates that pravastatin pharmacokinetics were not affected in patients with renal impairment, probably because of its dual route of elimination.