Abstract |
The dialyzability of imidaprilat, an active metabolite of the angiotensin-converting enzyme ( ACE) inhibitor imidapril, was determined and compared with those of enalaprilat and quinaprilat in hypertensive patients on chronic hemodialysis. Imidapril (5 mg/d, n = 6), enalapril (2.5 mg/d, n = 6), or quinapril (2.5 mg/d, n = 6) was given for at least 8 weeks prior to the trial. During dialysis, enalaprilat, but not imidaprilat or quinaprilat, concentrations in both sides decreased significantly. Compared to enalaprilat, the dialyzabilities of imidaprilat and quinaprilat were significantly lower (dialyzer clearance [mL/min/m(2)]: enalaprilat, 41.8 +/- 7.4; imidaprilat, 19.0 +/- 7.8; quinaprilat, 8.9 +/- 1.3). The dialyzabilities of the 3 drugs were negatively correlated with their respective protein-binding rates. During hemodialysis, blood pressure did not change significantly in any group. These results suggest that imidapril provides good blood pressure control without a large fluctuation of drug concentration in hypertensive patients undergoing chronic hemodialysis.
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Authors | Shuichi Tsuruoka, Yasuhiko Kitoh, Atsuhiro Kawaguchi, Koh-ichi Sugimoto, Tokie Hayasaka, Tetsuo Saito, Akio Fujimura |
Journal | Journal of clinical pharmacology
(J Clin Pharmacol)
Vol. 47
Issue 2
Pg. 259-63
(Feb 2007)
ISSN: 0091-2700 [Print] England |
PMID | 17244777
(Publication Type: Clinical Trial, Comparative Study, Journal Article)
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Chemical References |
- Angiotensin-Converting Enzyme Inhibitors
- Antihypertensive Agents
- Imidazolidines
- Tetrahydroisoquinolines
- Enalapril
- imidapril
- Quinapril
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Topics |
- Angiotensin-Converting Enzyme Inhibitors
(blood, pharmacokinetics, therapeutic use)
- Antihypertensive Agents
(blood, pharmacokinetics, therapeutic use)
- Blood Pressure
(drug effects)
- Enalapril
(blood, pharmacokinetics)
- Female
- Humans
- Hypertension
(complications, drug therapy, metabolism)
- Imidazolidines
(blood, pharmacokinetics, therapeutic use)
- Male
- Quinapril
- Renal Dialysis
- Renal Insufficiency
(metabolism, physiopathology, therapy)
- Tetrahydroisoquinolines
(blood, pharmacokinetics)
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