Abstract:
AIMS:Antithrombin is increasingly used in paediatric patients, yet there are few age-specific pharmacokinetic data to guide dosing. We aimed to describe the pharmacokinetic profile of human (plasma-derived) antithrombin concentrate in paediatric patients. METHODS:A 5-year retrospective review was performed of patients <19 years of age admitted to our institution who received antithrombin concentrate, were not on mechanical circulatory support and had baseline (predose) and postdose plasma antithrombin activity levels available for analysis. Demographic and laboratory variables, antithrombin dosing information and data on the use of continuous infusion unfractionated heparin were collected. Population pharmacokinetic analysis was performed with bootstrap analysis. The model developed was tested against a validation dataset from a cohort of similar patients, and a predictive value was calculated. RESULTS:A total 184 patients met the study criteria {46.7% male, median age [years] 0.35 [interquartile range (IQR) 0.07-3.9]}. A median of two antithrombin doses (IQR 1-4) were given to patients (at a dose of 46.3 ± 13.6 units kg-1 ), with median of three (IQR 2-7) postdose levels per patient. Continuous infusion unfractionated heparin was administered in 87.5% of patients, at a mean dose of 34.1 ± 22.7 units kg-1 h-1 . A one-compartment exponential error model best fit the data, and significant covariates included allometrically scaled weight on clearance and volume of distribution, unfractionated heparin dose on clearance, and baseline antithrombin activity level on volume of distribution. The model resulted in a median -1.75% prediction error (IQR -11.75% to 6.5%) when applied to the validation dataset (n = 30). CONCLUSIONS:Antithrombin pharmacokinetics are significantly influenced by the concurrent use of unfractionated heparin and baseline antithrombin activity.
journal_name
Br J Clin Pharmacoljournal_title
British journal of clinical pharmacologyauthors
Moffett BS,Diaz R,Galati M,Mahoney D,Teruya J,Yee DLdoi
10.1111/bcp.13359subject
Has Abstractpub_date
2017-11-01 00:00:00pages
2450-2457issue
11eissn
0306-5251issn
1365-2125journal_volume
83pub_type
杂志文章abstract:AIMS:To assess the reproducibility of the digital pulse wave response to beta(2)-adrenoreceptor stimulation and to determine if an attenuated response to beta(2)-adrenoceptor stimulation is associated with impaired flow mediated dilatation (FMD). METHODS:Subjects (n = 20) with endothelial dysfunction (ED), were compar...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.2007.03006.x
更新日期:2008-02-01 00:00:00
abstract::Propranolol induced changes in blood plasma chemistry were followed in thirty hypertensive patients (WHO I-II) who were seen each week during 14-15 weeks. The initial 4 weeks were a drug free period and the next 2 weeks were a drug adjustment period. After that the patients were on an unchanged propranolol dose for 8 ...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.1984.tb02341.x
更新日期:1984-03-01 00:00:00
abstract:AIMS:Generic products can be regarded as therapeutically equivalent and switchable with the reference product. However, switchability between generics is unknown, as direct comparisons between generics are not performed. The aim of this study was to investigate the bioequivalence between generic clopidogrel products by...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/bcp.13997
更新日期:2019-09-01 00:00:00
abstract:AIMS:The cytochrome P-450 2D6 (CYP2D6) gene duplication/multiduplication producing an increase in enzyme activity, and the common Japanese mutation, CYP2D6*10A producing a decrease of enzyme activity were screened in a large number of Japanese psychiatric subjects (n = 111) in order to investigate whether these mutated...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1046/j.0306-5251.2003.01872.x
更新日期:2003-09-01 00:00:00
abstract::1. Six healthy male human volunteers of mean age 30.8 years (range 23-37) were given single oral doses of xamoterol (20, 50, 100 or 250 mg) and placebo with a 1 week interval between each dose. Xamoterol produced a significant decrease in systolic time intervals (QS2I, LVETI and PEPI) and a significant increase in sys...
journal_title:British journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2125.1990.tb03663.x
更新日期:1990-04-01 00:00:00
abstract::There is concern in the UK about nonmedical use (NMU) of alprazolam (Xanax). We investigated the epidemiology of alprazolam NMU compared with diazepam using data from the Survey of Non-Medical Use of Prescription Drugs (NMURx) programme (collected 28 September-1 December 2017). The survey included 10 019 respondents a...
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doi:10.1111/bcp.13959
更新日期:2019-08-01 00:00:00
abstract::The effects of omeprazole on cytochrome P-450 mediated 7-ethoxycoumarin deethylation were studied in human liver microsomes. Omeprazole inhibited both the high and low affinity components of deethylation, with an estimated Ki of 0.03 mM for the high affinity component. The results are further evidence that the previou...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.1986.tb05199.x
更新日期:1986-03-01 00:00:00
abstract::In a double-blind, placebo-controlled, randomised, cross-over study of six healthy male subjects, the effect of nicardipine (5 mg h-1 for 3 h) on basal and stimulated pituitary hormone release was examined. Statistically significant differences between nicardipine and placebo were seen occasionally for follicle-stimul...
journal_title:British journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2125.1985.tb05147.x
更新日期:1985-01-01 00:00:00
abstract::Plasma and synovial fluid concentrations of the enantiomers of flurbiprofen were measured in 15 rheumatoid patients receiving 100 mg racemic flurbiprofen twice daily. Pharmacokinetic parameters showed considerable variability within the group of patients, although differences in S(+)/R(-) plasma concentration ratios w...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.1991.tb03865.x
更新日期:1991-01-01 00:00:00
abstract:AIMS:The aim was to examine relationships between total and unbound mycophenolic acid (MPA) and prednisolone exposure and clinical outcomes in patients with lupus nephritis. METHODS:Six blood samples were drawn pre- and at 1, 2, 4, 6 and 8 h post-dose and total and unbound MPA and prednisolone pre-dose (C0 ), maximum ...
journal_title:British journal of clinical pharmacology
pub_type: 临床试验,杂志文章
doi:10.1111/bcp.12678
更新日期:2015-11-01 00:00:00
abstract::Phenytoin drug reaction with eosinophilia and systemic symptoms (DRESS) in 3 Aboriginal Australians positive for HLA-B*56:02 has been previously reported. We report the allele frequency of HLA-B*56:02 in 2 South Australian populations, 1 Aboriginal (4.8%, 95% confidence interval 2.4-7.8%) and the other European (0%). ...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/bcp.14025
更新日期:2019-09-01 00:00:00
abstract:AIMS:With rising use worldwide, pregabalin is increasingly implicated in poisoning deaths. We aimed to investigate the clinical effects and complications of pregabalin poisoning. METHODS:This is a retrospective review of patients presenting with pregabalin poisoning to two tertiary toxicology units from 1 July 2014 to...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/bcp.14348
更新日期:2020-12-01 00:00:00
abstract:AIMS:Carbamazepine (CBZ) is an inducer of cytochrome P450 enzymes, which have been implicated in many drug interactions. However, for immunosuppressant and anti-HIV drugs, whose main site of action is the lymphocyte, induction of P-glycoprotein (Pgp) may also be important. In this study, we have investigated whether CB...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.2006.02587.x
更新日期:2006-08-01 00:00:00
abstract:AIMS:Major bleeding complications with low-molecular-weight heparin (LMWH) treatment have been reported both in clinical studies and during postmarketing surveillance. Monitoring of antifactor Xa (anti-Xa) activities is therefore recommended in special populations often predisposed to renal impairment. The PROPHRE.75 s...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.2007.02920.x
更新日期:2007-10-01 00:00:00
abstract:AIM:To review the literature on adverse drug reactions (ADRs) in children with respect to occurrence, seriousness, type, therapeutic group, age and gender of the child and category of reporter. METHODS:Medline and Embase databases were searched from origin and updated until February 2010. We included empirically based...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2125.2010.03682.x
更新日期:2010-10-01 00:00:00
abstract::Integration of clinical and preclinical pharmacology in pharmaceutical companies could be improved by several key recommendations: Companies should ensure that there is an adequate pool of trained clinical pharmacologists and preclinical pharmacologists. Training should include topics that allow clinical pharmacologis...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.2012.04239.x
更新日期:2012-06-01 00:00:00
abstract::1. Kenyan children with uncomplicated malaria given oral halofantrine (HF; non-micronised suspension; 8 mg base kg-1 body weight 6 hourly for three doses) showed wide variation in the disposition of HF and desbutylhalofantrine (HFm). 2. Eight Kenyan children with severe (prostrate) falciparum malaria who were receivin...
journal_title:British journal of clinical pharmacology
pub_type: 临床试验,杂志文章
doi:10.1111/j.1365-2125.1995.tb04450.x
更新日期:1995-03-01 00:00:00
abstract::1 Healthy volunteers received single doses of temazepam 30 mg in conventional gelatin capsules, suppositories or in solution. They experienced marked sedation and sleepiness. The onset of sleepiness was prompt after the administration of the solution; this latter showed the fastest absorption and gave the highest peak...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.1979.tb00452.x
更新日期:1979-01-01 00:00:00
abstract:AIMS:Previous isobolographic analysis revealed that coadministration of morphine and oxycodone produces synergistic antinociception in laboratory rodents. As both opioids can produce ventilatory depression, this study was designed to determine whether their ventilatory effects were synergistic when coadministered to he...
journal_title:British journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2125.2005.02368.x
更新日期:2005-05-01 00:00:00
abstract:AIMS:This study assessed the effects of the CYP3A inhibitors lopinavir/ritonavir (LPV/r) on the steady-state pharmacokinetics (PK) of aplaviroc (APL), a CYP3A4 substrate, in healthy subjects. METHODS:In Part 1, APL PK was determined in eight subjects who received a single oral 50-mg APL test dose with/without a single...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.2006.02661.x
更新日期:2006-09-01 00:00:00
abstract:AIM:To characterize the romiplostim dose-response in subjects with low or intermediate-1 risk myelodysplastic syndromes (MDS) receiving subcutaneous romiplostim. METHODS:Data from 44 MDS subjects receiving subcutaneous romiplostim (dose range 300-1500 μg week(-1) ) were used to develop a pharmacodynamic model consisti...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/bcp.12041
更新日期:2013-06-01 00:00:00
abstract::The evolution of human immunodeficiency virus (HIV) treatment has improved our understanding and management of complex pharmacological issues that have driven improved outcomes and quality of life of the HIV-infected patient. These issues include adherence, long- and short-term toxicities, pharmacoenhancement, pharmac...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章,评审
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更新日期:2015-02-01 00:00:00
abstract::Pharmacogenetic research dedicated to the investigation of inherited factors that influence drug response has produced exciting results over the past decade. Adding to the knowledge that genetic variation in metabolic enzymes may cause drug-related adverse reactions, recent studies indicate that variation in neurotran...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章,评审
doi:10.1046/j.1365-2125.2002.01679.x
更新日期:2002-10-01 00:00:00
abstract:AIMS:Aprepitant and fosaprepitant, commonly used for the prevention of chemotherapy-induced nausea and vomiting, alter cytochrome P450 activity. This systematic review evaluates clinically significant pharmacokinetic drug interactions with aprepitant and fosaprepitant and describes adverse events ascribed to drug inter...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章,meta分析,评审
doi:10.1111/bcp.13322
更新日期:2017-10-01 00:00:00
abstract:WHAT IS ALREADY KNOWN ABOUT THIS SUBJECT:Oxycodone is an opioid analgesic that is metabolized mainly in the liver by cytochrome P450 (CYP) 2D6 and 3A4 enzymes. So far, the effects of CYP2D6 or CYP3A4 inhibitors on the pharmacokinetics of oxycodone in humans have not been systematically studied. WHAT THIS STUDY ADDS:Dr...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章,随机对照试验
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更新日期:2010-07-01 00:00:00
abstract:AIMS:The inhaled allergen challenge model has been used previously to investigate the effects of novel anti-inflammatory drugs in inhaled corticosteroid (ICS)-naïve asthmatics. The aim of this study was to characterize high- and low-dose allergen challenges in asthmatic patients using ICS. METHODS:Twenty-eight asthmat...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/bcp.12508
更新日期:2015-03-01 00:00:00
abstract:ADVERSE EVENT:A drug interaction leading to higher exposure to cyclosporine. DRUGS IMPLICATED:Cyclosporine and ticagrelor. THE PATIENT:A 49-year-old man with a stable renal graft, managed with cyclosporine with stable trough blood concentrations for several years, was treated with ticagrelor for unstable angina pecto...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
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更新日期:2018-01-01 00:00:00
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journal_title:British journal of clinical pharmacology
pub_type: 杂志文章,评审
doi:10.1111/bcp.14716
更新日期:2021-01-04 00:00:00
abstract::1. The influence of food on the absorption of frusemide and bumetanide was compared in two separate randomized crossover studies. 2. On three separate occasions frusemide 40 mg was administered to eight healthy male volunteers intravenously, orally in the fasting state and orally after a standard breakfast. Blood and ...
journal_title:British journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1046/j.1365-2125.1996.00494.x
更新日期:1996-12-01 00:00:00
abstract::1. The oral kinetics of oxazepam after a single 15 mg oral dose was investigated in six healthy volunteers before and during concomitant administration of the beta-adrenoceptor antagonists propranolol (80 mg) and labetalol (200 mg) (racemates). 2. A possible pharmacodynamic interaction between oxazepam and the beta-ad...
journal_title:British journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2125.1990.tb03599.x
更新日期:1990-01-01 00:00:00