Abstract:
PURPOSE:To develop a limited sampling strategy (LSS) to predict area under the concentration-time curve (AUC) ratios of omeprazole (AUC(OPZ)) to its metabolites 5-hydroxyomeprazole (AUC(5OH)) and omeprazole sulfone (AUC(SUL)) as phenotyping parameters for cytochrome P450 (CYP) 2C19 and 3A. METHODS:Data were obtained from 37 (4 women) Caucasian, Chinese, and Korean healthy adults from three published studies. The AUC(OPZ), AUC(5OH), and AUC(SUL) were calculated via noncompartmental analysis. Observed AUC(OPZ, OBS)/AUC(5OH, OBS) and AUC(OPZ, OBS)/AUC(SUL, OBS) were determined. Plasma concentrations of omeprazole, 5-hydroxyomeprazole, and omeprazole sulfone at 1, 1.5, 2, 3, 4, 6, and 8 h post-dose were used to generate limited sampling strategy (LSS) models to predict AUC(OPZ,PRE)/AUC(5OH,PRE) and AUC(OPZ,PRE/)AUC(SUL,PRE). Bias and precision were assessed via percentage mean prediction error (%MPE) and percentage mean absolute error (%MAE), with acceptable limits being <15%. RESULTS:For CYP2C19, the AUC(OPZ,OBS)/AUC(5OH,OBS) was [mean ± standard deviation (SD)] 2.10 ± 1.63. Five LSS models of AUC(OPZ,PRE)/AUC(5OH,PRE) were generated, but none met the bias or precision criteria. Upon stratification by CYP2C19 genotype and ethnicity, a three-timepoint (at 1, 2, and 4 h) LSS model accurately predicted AUC(OPZ)/AUC(5OH) in Caucasian CYP2C19*1/*1 subjects. For CYP3A, AUC(OPZ,OBS)/AUC(SUL,OBS) (mean ± SD) was 1.79 ± 0.67. All LSS models had unacceptable %MAE, even when stratified by CYP2C19 genotype and ethnicity. CONCLUSIONS:A LSS model to predict AUC(OPZ)/AUC(5OH), and thus CYP2C19 activity, was generated for Caucasian CYP2C19*1/*1 subjects. However, additional model validation is needed prior to general use. LSS models to predict AUC(OPZ)/AUC(SUL), and thus CYP3A activity, were not possible, even upon stratification by CYP2C19 genotype and ethnicity.
journal_name
Eur J Clin Pharmacoljournal_title
European journal of clinical pharmacologyauthors
Lawson EB,Wu JC,Baldwin RM,Ingelman-Sundberg M,Rosenborg S,Yim DS,Yin OQ,Capparelli EV,Ma JDdoi
10.1007/s00228-011-1136-ysubject
Has Abstractpub_date
2012-04-01 00:00:00pages
407-13issue
4eissn
0031-6970issn
1432-1041journal_volume
68pub_type
临床试验,杂志文章abstract:OBJECTIVES:Methantheline is a strong muscarinic receptor blocking drug used in the treatment of overactive bladder syndrome, hypersalivation and hyperhidrosis. To provide basic information on the pharmacokinetics, magnitude of pharmacodynamic (PD) effects and their correlations with plasma concentrations, we performed ...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00228-012-1286-6
更新日期:2012-11-01 00:00:00
abstract::The biliary excretion of mebendazole has been investigated in two patients to whom it was given for the treatment of echinococcosis, although it was found to be only partly effective. Oral mebendazole was extensively metabolized and the conjugated parent substance and its metabolites were excreted in the bile. One pat...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/BF00544020
更新日期:1983-01-01 00:00:00
abstract:OBJECTIVE:To assess the pharmacokinetics, safety and tolerability of escalating oral doses of GW420867X, a non-nucleoside reverse transcriptase inhibitor, was investigated in healthy male volunteers in a randomized, double-blind placebo-controlled study. METHODS:Study subjects were divided into four groups of 12 subje...
journal_title:European journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/s002280000224
更新日期:2001-01-01 00:00:00
abstract:PURPOSE:To comparatively assess the prevalence rates of potentially inappropriate medications (PIMs) obtained by the former and latest versions of American Geriatrics Society Beers Criteria (AGS BC) and screening tool of older person's potentially inappropriate prescriptions (STOPP), and analyze the factors of influenc...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/s00228-019-02722-0
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abstract::The effects of single oral doses of mequitazine (5 and 10 mg), terfenadine (60 mg) and triprolidine (10 mg) as active controls, and placebo were evaluated on visuo-motor coordination, digit symbol substitution, critical flicker fusion and dynamic visual acuity, and on subjective assessments of mood and well-being in s...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/BF00542129
更新日期:1983-01-01 00:00:00
abstract:PURPOSE:Preparation of parenteral medication in hospitals is a complex process with a risk of microbial contamination of the product, especially when inappropriately prepared. Contaminated parenteral medications can cause severe complications to patients and increase morbidity in hospitals. The aim of this literature r...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章,meta分析,评审
doi:10.1007/s00228-019-02631-2
更新日期:2019-05-01 00:00:00
abstract::Effects on psychomotor and cognitive performance of adinazolam (15 or 30 mg), alone and in combination with ethanol (0.8 g/kg), were studied in healthy male volunteers and compared to effects of 10 mg diazepam. Adinazolam 30 mg produced relatively long-lasting impairments on tests of tracking, attention, verbal and no...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/BF00315578
更新日期:1990-01-01 00:00:00
abstract:PURPOSE:SPT-07A is an intravenous injection of (+)-2-borneol being developed for the treatment of acute ischemic stroke. This study aimed to investigate the pharmacokinetics, pharmacodynamics, safety, tolerability, and mass balance of SPT-07A after sequentially administered single and multiple infusions of SPT-07A at 1...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/s00228-020-02851-x
更新日期:2020-06-01 00:00:00
abstract::The pharmacokinetics of i.v. chloramphenicol succinate and oral chloramphenicol palmitate were studied in Ethiopian children with different nutritional states. In children with kwashiorkor the plasma clearance of chloramphenicol was significantly lower than in children of normal weight (4.16 ml/min/kg versus 7.53 ml/m...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/BF00607094
更新日期:1983-01-01 00:00:00
abstract::The beta-adrenoceptor blocking activity of the new Class Ic-antiarrhythmic drug diprafenone has been determined in man in comparison with that of propranolol, using the standardized isoproterenol test. Following placebo, the dose of isoproterenol which increased the heart rate by 25 beats.min-1 (CD25) was 0.84 (0.1-2....
journal_title:European journal of clinical pharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/BF00637739
更新日期:1989-01-01 00:00:00
abstract:AIMS:To determine whether the variability in cytochrome P(450) (CYP)3A4 metabolic function is exhibited at both transcription and translation levels and to examine the population distribution of CYP3A4 enzyme kinetics, protein, and mRNA. METHODS:Enzyme kinetics of testosterone 6beta-hydroxylation, immunoblot CYP3A4 pr...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/s00228-002-0487-9
更新日期:2002-08-01 00:00:00
abstract::In this paper an alternative approach to nonlinear pharmacokinetics modelling has been developed from first principles. This "Unsteady Model" is able to describe the situation whereby one or more independent drugs and their metabolites compete for free attachment sites in liver, tissue, red blood cells etc. The Unstea...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/BF00615410
更新日期:1981-01-01 00:00:00
abstract:PURPOSE:The aim of this study was to add to the body of evidence on statin-induced gynecomastia based on data retrieved from the Italian spontaneous adverse drug reaction (ADR) reporting database. METHODS:Spontaneous ADR reports collected in the Italian database up to 31 December 2010 were assessed on a case-by-case b...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/s00228-012-1218-5
更新日期:2012-06-01 00:00:00
abstract::A new device for IV admixtures has been developed in Israel, the Vialink minibag. It consists of a partly filled minibag, attached by rubber tubing to a sterile receptable into which various types of vials containing drugs can be firmly inserted. Time and motion studies were conducted to determine the time and cost as...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/BF00194973
更新日期:1994-01-01 00:00:00
abstract:OBJECTIVE:To study the effect of renal impairment on the pharmacokinetics of sertindole. METHODS:A single 4 mg oral dose of sertindole was given to normal subjects (n = 6) and subjects with various degrees of impaired renal function (n = 18) classified into mild, moderate, and severe/hemodialysis based on their creati...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/s002280050278
更新日期:1997-01-01 00:00:00
abstract::Jejunal perfusion was performed in 12 healthy volunteers to evaluate the dose dependent effects of loperamide on intestinal absorption, stimulated secretion and transit. In 6 volunteers intestinal perfusion of the jejunal segment with isotonic NaCl solution was followed by addition of loperamide in increasing doses (2...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/BF00315436
更新日期:1991-01-01 00:00:00
abstract:OBJECTIVE:To determine the response of haemodynamic and oxygen-transport parameters to phenylephrine in a dose-response fashion in septic non-hypotensive, vasodilated surgical intensive care unit (ICU) patients. DESIGN:Prospective study. SETTING:Surgical ICU of a tertiary care, university medical centre. PATIENTS:Te...
journal_title:European journal of clinical pharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/s002280050231
更新日期:1997-01-01 00:00:00
abstract:PURPOSE:Tolcapone is an efficacious catechol-O-methyltransferase inhibitor for Parkinson's disease (PD). However, safety issues hampered its use in clinical practice. We aimed to provide evidence of safety and efficacy of tolcapone by a systematic literature review to support clinicians' choices in the use of an enlarg...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章,评审
doi:10.1007/s00228-020-03081-x
更新日期:2021-01-07 00:00:00
abstract::The levels of doxycycline in serum, bile and the gallbladder wall were determined in 25 patients during cholecystectomy, by means of bioassay after previous intravenous administration of doxycycline. The mean biliary level exceeded 20 microgram/ml, and the mean level in the gallbladder wall was greater than 2 microgra...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/BF00554664
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abstract:OBJECTIVE:We sought to quantify the influence of the CYP3A inhibitor erythromycin on the pharmacokinetics of everolimus, a CYP3A substrate. METHODS:This was a two-period, single-sequence, crossover study in 16 healthy subjects. In period 1, subjects received the reference treatment of a single 2-mg dose of everolimus....
journal_title:European journal of clinical pharmacology
pub_type: 临床试验,杂志文章
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更新日期:2005-03-01 00:00:00
abstract::The effect of spironolactone on cardiac contractility indices was studied by externally recording systolic time intervals in four digitalized and four non-digitalized patients with ischaemic heart disease. A negative inotropic effect was found after spironolactone 100mg b.i.d. in all eight patients, as measured by an ...
journal_title:European journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/BF00637612
更新日期:1982-01-01 00:00:00
abstract::We have evaluated the pharmacokinetics of high doses of clonidine, as used in the prophylactic treatment of alcohol withdrawal syndrome, in 11 alcohol-dependent patients undergoing surgery for oesophagogastrectomy. Clonidine was given in a bolus of 150 micrograms followed by a continuous infusion. After a mean period ...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/BF00315500
更新日期:1993-01-01 00:00:00
abstract:PURPOSE:Drug-related problems (DRPs) are common in paediatric pharmacotherapy, but few studies describe them from the parents' perspective. In the present survey, we have investigated the lifetime prevalence and type of DRPs in children in Finland. METHODS:This was a population-based survey of a random sample of 6,000...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章,随机对照试验
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更新日期:2013-04-01 00:00:00
abstract:PURPOSE:The aim of this study was to identify structure and language elements affecting the quality of responses from Scandinavian drug information centres (DICs). METHODS:Six different fictitious drug-related queries were sent to each of seven Scandinavian DICs. The centres were blinded for which queries were part of...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
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更新日期:2017-05-01 00:00:00
abstract:AIM:To analyse the consumption of a number of medicines with a known potential for increasing the risk of road traffic accidents in the general population of Europe. METHODS:Questionnaires were distributed through the European Drug Utilization Research Group (EuroDURG) and Post-Innovation Learning through Life-events ...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/s00228-009-0695-7
更新日期:2009-11-01 00:00:00
abstract::The presence of a possible correlation between changes in left ventricular mass of hypertensive patients and the degree of blood pressure reduction with different antihypertensive drugs has been investigated in 40 outpatients by M-mode echocardiography. Ten of these, with blood pressure in normal limits with different...
journal_title:European journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/BF00556886
更新日期:1984-01-01 00:00:00
abstract::We have compared the effect on ventilation of ketorolac, an injectable non-steroidal analgesic, with that of morphine in a randomized, double-blind, cross-over study, using two doses of ketorolac (10 and 90 mg i.m.) and one of morphine (10 mg i.m.). The effect on ventilation was measured with a CO2 rebreathing techniq...
journal_title:European journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:1988-01-01 00:00:00
abstract:PURPOSE:Tigecycline is one of few antibiotics active against multidrug-resistant bacteria; however, the assessment of dosing strategies to optimize its activity is needed. The purpose was to use Monte Carlo Simulation (MCS) to determine if safe tigecycline dosing options attaining breakpoints for pharmacokinetic/pharma...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/s00228-020-02998-7
更新日期:2021-02-01 00:00:00
abstract::We have studied the pharmacokinetics of fluconazole in five patients on long-term haemodialysis. The single-pass extraction rate of the dialyzer was 59 (3.5)% (n = 4), and the serum concentration was reduced by haemodialysis for 3 or 4 h by 26 (3.2)% (n = 5) and 39 (2.2)% (n = 9) respectively. The estimated amount ext...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/BF00265934
更新日期:1992-01-01 00:00:00
abstract:PURPOSE:The incidence of osteoporosis-related fractures will increase substantially over the coming decades as the population ages globally. This has important economic and public health implications, contributing substantially to morbidity and excess mortality in this population. METHODS:When prescribing for older pa...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章,评审
doi:10.1007/s00228-011-0999-2
更新日期:2011-04-01 00:00:00