Abstract:
PURPOSE:Until recently, ondansetron was approved for the prevention of nausea and vomiting only in patients older than 2 years. However, as the use of ondansetron in patients younger than 2 years had been documented, characterization of ondansetron pharmacokinetics in this younger pediatric age group was warranted. METHODS:The pharmacokinetics of intravenously administered ondansetron were evaluated in oncology and surgical patients aged 1-48 months. Pooled data from 124 patients, including 745 pharmacokinetic samples, were analyzed using nonlinear mixed-effects modeling. RESULTS:Ondansetron pharmacokinetics were described by a two-compartment model. Body-size effects on ondansetron disposition were accounted for via standard allometric relationships, normalized to 10.4 kg. A maturation process with a half-life of approximately 4 months was incorporated to describe a decrease in clearance (CL) in infants. Clearance [95% confidence interval (CI)] for a typical patient was 1.53 (1.34-1.78) L/h/kg(0.75) with an interindividual variability of 56.8%. Ondansetron CL was reduced by 31%, 53%, and 76% for the typical 6-month-, 3-month-, and 1-month-old patient, respectively. Simulations showed that an ondansetron dose of 0.1 mg/kg in children younger than 6 months produced exposure similar to a 0.15-mg/kg dose in older children. CONCLUSIONS:The population pharmacokinetic analysis of ondansetron allows for characterization of individual patients based on body weight and age. It is recommended that patients younger than 4 months receiving ondansetron be closely monitored.
journal_name
Eur J Clin Pharmacoljournal_title
European journal of clinical pharmacologyauthors
Mondick JT,Johnson BM,Haberer LJ,Sale ME,Adamson PC,Coté CJ,Croop JM,Russo MW,Barrett JS,Hoke JFdoi
10.1007/s00228-009-0730-8subject
Has Abstractpub_date
2010-01-01 00:00:00pages
77-86issue
1eissn
0031-6970issn
1432-1041journal_volume
66pub_type
杂志文章,多中心研究abstract:UNLABELLED:The steady-state pharmacokinetics of nefazodone (NEF) and its metabolites hydroxynefazodone (HO-NEF) and m-chlorophenylpiperazine (mCPP) were compared in subjects with normal and impaired renal function. PATIENTS:The Study was of parallel group design which included 7 subjects with normal (NOR) renal functi...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/BF00192384
更新日期:1995-01-01 00:00:00
abstract:OBJECTIVE:To study the effects of possible interactions between levosimendan and warfarin on pharmacokinetics and pharmacodynamics. Furthermore, the effects of levosimendan on blood coagulation were investigated. METHODS:Open, randomised cross-over design with two treatment phases was used. During one phase, levosimen...
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/s002280000204
更新日期:2000-12-01 00:00:00
abstract:PURPOSE:To illustrate the interface of pharmacogenetics and therapeutic drug monitoring and to estimate target blood level for imatinib in the treatment of chronic myelogenous leukemia METHODS:A literature review to provide the evidence and necessary data to support the case for the interface, and quantitative analysi...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
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更新日期:2010-04-01 00:00:00
abstract:BACKGROUND:Cytochrome P450 2C9 (CYP2C9) allelic variant carriers have been shown to experience hyper-responsiveness to small doses of oral anticoagulants (OAs) (warfarin or acenocoumarol) and a higher bleeding rate. OBJECTIVES:To determine the relative frequencies of different risk factors for OA overdose including di...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/s00228-002-0538-2
更新日期:2003-03-01 00:00:00
abstract:OBJECTIVE:Although the treatment of schizophrenia with many second generation antipsychotics is known to be associated with metabolic changes, such as hyperglycemia or hypercholesterolemia, the underlying mechanisms of these adverse reactions remain unclear. In light of the recent focus on the involvement of semicarbaz...
journal_title:European journal of clinical pharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/s00228-007-0272-x
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abstract::The immunosuppressive activity of azathioprine (AZA) is unpredictable and depends on the formation of intracellular thiopurine ribonucleotides. However, the quantification of these active thiopurines presents difficult analytical problems. It has recently been postulated that plasma concentrations of 6-thiouric acid (...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/BF00558158
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abstract::The pharmacokinetics of metoclopramide has been studied after acute IV administration to 12 patients with hepatic cirrhosis (6 with and 6 without ascites) and 6 control subjects. The elimination half-life was significantly longer in patients (11.4 h and 9.9 h in those with and without ascites, respectively, vs 6.4 h i...
journal_title:European journal of clinical pharmacology
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abstract:OBJECTIVE:To determine the possible interaction between the antihypertensive agent cicletanine and the hypoglycaemic drug tolbutamide. METHODS:Time-courses of glycaemia and serum immunoreactive insulin (IRI) were followed in 10 healthy subjects after two tolbutamide infusions in each volunteer; initially alone and 9 d...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/s002280050127
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abstract:OBJECTIVE:Losartan was given to subjects with known phenotypes of the polymorphic enzymes CYP2D6 and CYP2C19 to study any possible influence on the metabolism of the drug. METHODS:Plasma concentrations of losartan and E-3174 were studied after oral intake of 50 mg losartan in 24 healthy, male, Swedish Caucasian subjec...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/s002280050629
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abstract:OBJECTIVE:The efficacy of beta-adrenergic blocking agents and acetylsalicylic acid in the secondary prevention of myocardial infarction has been well recognized since the beginning of the 1980s. In a previous paper, however, we reported a lower than expected use of these drugs during the period 1982 1988. In 1989 the r...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
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abstract::Repeated doses of a 1,5 benzodiazepine, clobazam, were administered to a group of consenting volunteers. Performance on a psychomotor performance task was not impaired by repeated doses of the drug. Subjective assessments of anxiety were reduced commensurate with an increase in the level of cortical integration, measu...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
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abstract:PURPOSE:Pre-clinical experiments have shown that almorexant, a dual orexin receptor antagonist, is able to inhibit cytochrome P450 3A4 (CYP3A4). Therefore, a study was conducted to investigate the effects of multiple-dose almorexant on the pharmacokinetics of midazolam and simvastatin, two CYP3A4 model substrates. MET...
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:2013-03-01 00:00:00
abstract:PURPOSE:The European Committee for Human Medicinal Products (CHMP) requested a multinational study with the aim to investigate the risk of acute liver failure (ALF) leading to registration for transplantation in patients exposed to non-steroidal anti-inflammatory drugs (NSAIDs). The method of this multinational, multic...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章,多中心研究
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更新日期:2013-03-01 00:00:00
abstract::Quinidine is a very potent inhibitor of CYP2D6, but the role of the enzyme in the biotransformation of quinidine has only been investigated in a single in vitro study and in two small in vivo experiments, with contradictory results. The present investigation was designed to present definite evaluation of whether quini...
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:1995-01-01 00:00:00
abstract::Atropine-induced bradycardia is traditionally ascribed to central vagal stimulation, although bradycardia has also been observed after administration of quarternary amines. Pirezepine, a selective M1-antagonist, causes bradycardia in therapeutic doses for which a peripheral mechanism is postulated. This hypothesis has...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/BF00558245
更新日期:1988-01-01 00:00:00
abstract:BACKGROUND:Visual hallucinations (VHs) are frequent non-motor complication of Parkinson's disease (PD), associated to a negative prognosis. Previous studies showed an association between dopamine receptor (DR) gene (DR) variants and psychosis in Alzheimer's disease, addictions, schizophrenia, and bipolar disorder. Howe...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/s00228-016-2111-4
更新日期:2016-11-01 00:00:00
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journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/BF00679780
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abstract:PURPOSE:Bariatric surgery can influence the prevalence and incidence of comorbidities, as well as the pharmacokinetics of drugs. This might lead to changes in the use of drugs. This study aimed to assess the influence of bariatric surgery on the use of medication in patients before and after surgery, focusing on type, ...
journal_title:European journal of clinical pharmacology
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journal_title:European journal of clinical pharmacology
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journal_title:European journal of clinical pharmacology
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journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
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abstract::The effects in vitro and in vivo of triiodothyronine on certain functions of human lymphocytes and polymorphonuclear granulocytes have been investigated. Triiodothyronine was able to enhance the phagocytic capacity and chemiluminescent activity of polymorphonuclear granulocytes. PHA-P-induced 3H-thymidine incorporatio...
journal_title:European journal of clinical pharmacology
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abstract:PURPOSE:Tolvaptan is a selective vasopressin V2 receptor antagonist that can be given orally once daily for treatment of clinically significant hypervolemic and euvolemic hyponatremia (US and Europe) or extracellular volume expansion despite taking other diuretics (Japan). In vitro studies indicated that tolvaptan was ...
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:2012-02-01 00:00:00
abstract::The new competitive histamine H2-receptor antagonist, ramixotidine 2 HCl (CM 57755), has been tested in healthy male volunteers for its ability to inhibit pentagastrin-stimulated gastric acid secretion. In the first study, in 8 subjects, pentagastrin 6 micrograms.kg-1 was injected s.c., 90 min after the following 4 or...
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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abstract::Amoxycillin and ofloxacin are both well absorbed after oral administration, despite being hydrophilic. We have studied the possibility of competition between these two drugs for a carrier-mediated transport system, since both drugs are absorbed by saturable processes in the rat small intestine. Oral doses of amoxycill...
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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abstract:PURPOSE:Spontaneous reporting systems in European countries are crucial for collecting adverse drug reaction (ADR) reports. The aim of this study was to evaluate reporting activity among countries and their strategy to increase the number of reports. We also established the best measure for assessment quantity of repor...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
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更新日期:2012-07-01 00:00:00
abstract::In a double-blind controlled trial 22 patients with mild or moderate essential hypertension were treated with nicardipine 30 mg t.d.s. and 19 patients with propranolol 80 mg t.d.s. as monotherapy for 24 weeks. Blood pressure in both groups at the end of trial was equally and significantly reduced; systolic pressure 22...
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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abstract:OBJECTIVE:To describe the epidemiology of psychotropic drug use in a sample of Italian outpatient psychiatric services. METHODS:Drug-utilisation survey conducted within the framework of a broader prospective follow-up study with 67 Italian outpatient psychiatric services. RESULTS:The data concern 2322 patients recrui...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章,多中心研究
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更新日期:1999-11-01 00:00:00
abstract::The hypocholesterolemic cation resins, cholestyramine and colestipol, have variable effects on the absorption parameters of a number of lipophillic, anion drugs. Because of the unpredictable nature of this interaction, we have assessed in human volunteers the effect of these resins on the rate and total absorption of ...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
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更新日期:1983-01-01 00:00:00
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journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
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更新日期:2019-10-01 00:00:00