Abstract:
:Monoclonal antibodies are capable of modulating drug metabolising enzymes resulting in unexpected plasma concentrations of a drug when given concomitantly. Therefore plasma concentration of paclitaxel (PTX) and its metabolites has been monitored in 10 patients with advanced breast cancer during treatment with PTX alone or combined with trastuzumab (TMAB, paired cross over design). Compared to the MONO regimen PTX peak plasma concentrations were about 25% lower in the TMAB schedule: cmax = 3294 +/- 1174 ng/ml (MONO: 4368 +/- 1887 ng/ml). TMAB also caused lower peak plasma concentration of the main metabolite 6-hydroxy PTX (248 +/- 89 ng/ml) compared to the MONO schedule (194 +/- 82 ng/ml). Cmax of the minor metabolites was distinctly below 100 ng/ml and consequently differed negligible in both schedules. The similar apparent formation rate of the metabolites in both schedules (range from 30 to 50 min) as well as identical tmax values (range 170-190 min) suggested that TMAB had no influence on PTX metabolism. In accordance to plasma concentrations, AUClast of PTX was lower in the MONO schedule (733 +/- 197 microg/ml*min, AUClast = 669 +/- 248 microg/ml*min for TMAB) but without significance. In summary no indices for an altered plasma disposition of PTX and its metabolites could be found when TMAB was given concomitantly.
journal_name
Eur J Drug Metab Pharmacokinetjournal_title
European journal of drug metabolism and pharmacokineticsauthors
Furtlehner A,Schueller J,Jarisch I,Ostermann E,Czejka Mdoi
10.1007/BF03190613keywords:
subject
Has Abstractpub_date
2005-07-01 00:00:00pages
145-50issue
3eissn
0378-7966issn
2107-0180journal_volume
30pub_type
杂志文章abstract:BACKGROUND AND OBJECTIVES:Lidocaine 5% medicated plaster is the first lidocaine containing product for chronic use. As no previous investigations have been conducted to evaluate the population pharmacokinetics of long-term exposure to lidocaine 5% medicated plasters, further insights into the evaluation of the pharmaco...
journal_title:European journal of drug metabolism and pharmacokinetics
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1007/s13318-017-0400-7
更新日期:2017-10-01 00:00:00
abstract::The disposition kinetics of the N-oxide of picobenzide were studied after administration to rabbits at a bolus dose of 30 mg/kg of picobenzide intravenously. The biotransformation process fits a first-order kinetic process, and the metabolite shows good access capacity to the peripheral compartment. The N-oxide of pic...
journal_title:European journal of drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.1007/BF03190837
更新日期:1989-01-01 00:00:00
abstract::In this article, the methods of isolation and determination of bile acids are reviewed. Methods for separation of bile acids from cattle and pig bile are given in detail. Isolation of a mixture of cholic acid and deoxycholic acids from cattle bile and their subsequent purification are described. The isolation and puri...
journal_title:European journal of drug metabolism and pharmacokinetics
pub_type: 杂志文章,评审
doi:10.1007/BF03190712
更新日期:2006-07-01 00:00:00
abstract::The hypoxic cell radiosensitizing drug, misonidazole (Miso) (Ro 07-0582) and its demethylated metabolite were administered to Wistar rats at different dose levels to examine their renal elimination. The data were consistent with a model in which Miso is eliminated mainly after biotransformation into desmethylmisonidaz...
journal_title:European journal of drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.1007/BF03189740
更新日期:1985-07-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Methyl 3,4-dihydroxybenzoate (MDHB) has the potential to prevent neurodegenerative diseases (NDDs). The present work aims to reveal the pharmacokinetics and tissue distribution characteristics of MDHB. METHODS:The pharmacokinetics and tissue distribution of MDHB were analyzed using LC-MS/MS a...
journal_title:European journal of drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.1007/s13318-018-0512-8
更新日期:2019-04-01 00:00:00
abstract::A bioequivalence study compares the bioavailability between a test and a reference drug product in terms of the rate and extent of drug absorption. Area under the plasma concentration-time curve (AUC) and maximum plasma concentration (Cmax) are the pharmacokinetic parameters that serve as characteristics for the asses...
journal_title:European journal of drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.1007/BF03190024
更新日期:1999-07-01 00:00:00
abstract::The purpose of this study was to investigate the possibility of developing different levels of in vitro-in vivo correlation for immediate-release paracetamol tablets using in vitro dissolution data obtained under various experimental conditions. The influence of agitation intensity and pH value of the dissolution medi...
journal_title:European journal of drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.1007/BF03189824
更新日期:1998-01-01 00:00:00
abstract::The influence of Tamarindus indica L fruit extract incorporated in a traditional meal on the bioavailability of Ibuprofen tablets 400 mg dose when given concurrently was studied in 6 healthy human volunteers. There was a statistically significant increase in the plasma levels of Ibuprofen and its metabolites hydroxy-i...
journal_title:European journal of drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.1007/BF03190483
更新日期:2003-07-01 00:00:00
abstract::The effect of exogenous coenzyme Q10 (CoQ10) on the pharmacokinetic profiles and biliary excretion of doxorubicin and its main metabolites, doxorubicinol and doxorubicinolone, was investigated in rats. No statistically significant changes in the pharmacokinetic parameters of doxorubicin was observed following the intr...
journal_title:European journal of drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.1007/BF03190456
更新日期:2002-07-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Clopidogrel is an antiplatelet and antithrombotic prodrug. It has poor oral bioavailability due to poor dissolution and possible premature degradation in the intestine. Accordingly, the objective of this study was to enhance clopidogrel dissolution rate and to reduce its premature degradation ...
journal_title:European journal of drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.1007/s13318-015-0311-4
更新日期:2016-12-01 00:00:00
abstract::The compound 4-amino-3-(3'-methoxycarbonyl-2'-thioureido) benzophenone has shown promise as a prodrug of the anthelmintic mebendazole. The compound is stable in acid and neutral media and is rapidly hydrolysed in base. An HPLC assay procedure for mebendazole, the prodrug and their known or expected metabolites and deg...
journal_title:European journal of drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.1007/BF03188765
更新日期:1983-10-01 00:00:00
abstract::Danirixin (GSK1325756) is a small, high-affinity, selective and reversible CXCR2 antagonist in development for treatment of chronic obstructive pulmonary disease. The objective of the study was to evaluate the relative bioavailability, including the inter-subject variability, of a conventional immediate-release (IR) f...
journal_title:European journal of drug metabolism and pharmacokinetics
pub_type: 杂志文章,随机对照试验
doi:10.1007/s13318-014-0179-8
更新日期:2014-09-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Acetaminophen (APAP, paracetamol) is currently the principal cause of acute liver failure in both the USA and the UK. However, relatively little is known about the influence of genes and race/ethnicity on the disposition of APAP and the extent to which genetic variation and ethnicity may predi...
journal_title:European journal of drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.1007/s13318-016-0329-2
更新日期:2017-02-01 00:00:00
abstract::For many drugs administered per os, high variability in the concentration-time (C-T) values from first sampling to the phase of distribution may cause difficulty in pharmacokinetic analysis. Therefore, the aim of this study was to propose a method of transformation of C-T data, which would allow significantly reducing...
journal_title:European journal of drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.1007/s13318-013-0145-x
更新日期:2014-06-01 00:00:00
abstract::This study investigated the effect of mibefradil on digoxin pharmacokinetics an pharmacodynamics. Following a loading dose of digoxin (0.375 mg, three times, day 1), 0.375 mg was administered once daily to 40 healthy subjects (days 2-15). Mibefradil was administered daily at 50 mg, 100 mg, or 150 mg (days 9-15). With ...
journal_title:European journal of drug metabolism and pharmacokinetics
pub_type: 临床试验,杂志文章
doi:10.1007/BF03190358
更新日期:1999-04-01 00:00:00
abstract::The cardioselective beta-adrenergic blocking drug Visacor (ICI 141,292) was dosed to six beagle dogs in a randomized cross-over manner. Five formulations were examined i.e. a 15 mg/kg intravenous solution, a 50 mg/kg oral solution, and 50, 100 and 200 mg/kg oral powder formulations. Whole blood and urine samples were ...
journal_title:European journal of drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.1007/BF03189616
更新日期:1984-04-01 00:00:00
abstract::Previous studies have indicated that borneol has double side effects on the central nervous system (CNS), but the mechanism is unknown. The aim of this study was to clarify the relationship between excitation ratio [contents of excitatory amino acids (AAs) versus that of inhibitory] and the content of natural borneol ...
journal_title:European journal of drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.1007/s13318-011-0058-5
更新日期:2012-03-01 00:00:00
abstract::Following i.v. administration of mono-HR to the beagle, plasma levels of both mono-HR and its glucuronide conjugates fell rapidly, neither being detectable 8 h after injection. Following oral administration of 14C-mono-HR, mono-HR-glucuronide was detected in plasma, confirming the absorption of mono-HR, and low levels...
journal_title:European journal of drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.1007/BF03189428
更新日期:1979-01-01 00:00:00
abstract::There is current emphasis for extended integration of pharmacokinetics (PK) and pharmacodynamics (PD) into all phases of new drug development, including large-scale clinical trials. In this paper, we focus on study design and data analysis issues for the investigation of pharmacokinetic/pharmacodynamic and blood level...
journal_title:European journal of drug metabolism and pharmacokinetics
pub_type: 杂志文章,评审
doi:10.1007/BF03220009
更新日期:1993-01-01 00:00:00
abstract::The aim of the study was to accelerate the dissolution of the sustained release dosage forms using both elevated temperature and high rpm rates. Teokap(®) SR 200 mg pellets were tested by in vitro sustained and accelerated dissolution studies using USP XXIII rotating paddle method. Sustained dissolution studies were c...
journal_title:European journal of drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.1007/s13318-011-0049-6
更新日期:2011-12-01 00:00:00
abstract::The disposition of a single 80 mg/kg injection of quinine base was compared in control and Plasmodium berghei-infected mice. Pharmacokinetic parameters were determined on repeated whole blood samples from caudal vein (experiment 1) and quinine distribution was evaluated in tissues and blood fractions from mice sacrifi...
journal_title:European journal of drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.1007/BF03190862
更新日期:2003-01-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Doxorubicin plays an essential role in the treatment of paediatric cancers. Defining genotypes with a higher risk for developing anthracycline-induced cardiotoxicity could help to reduce cardiotoxicity. METHODS:Data originated from a phase II study assessing the pharmacokinetics of doxorubici...
journal_title:European journal of drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.1007/s13318-019-00592-6
更新日期:2020-06-01 00:00:00
abstract::The kinetics of fenfluramine isomers were studied in the rat following oral doses of racemic fenfluramine. The data, analyzed using an analogue computer, indicate that the d-fenfluramine is metabolised and excreted at a slower rate than the 1-isomer, resulting in higher plasma and brain concentrations. The kinetic par...
journal_title:European journal of drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.1007/BF03189529
更新日期:1981-01-01 00:00:00
abstract:OBJECTIVE:By using a population pharmacokinetic analysis method, we predicted the efficacy of Ceftriaxone (CTRX) based on the pharmacokinetics of CTRX in Japanese adults and the sensitivity of infective organisms to CTRX in 2004. In addition, we clarified the difference in efficacy between once-a-day administration and...
journal_title:European journal of drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.1007/BF03191159
更新日期:2009-04-01 00:00:00
abstract::BACKGROUND AND OBJECTIVE: Efavirenz is commonly used in Africa and is frequently associated with neurocognitive toxicity, which may compromise clinical outcomes. Older individuals are at increased risk for drug toxicity and clinical outcomes may be worse in older age, particularly among those individuals with cytochro...
journal_title:European journal of drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.1007/s13318-018-0507-5
更新日期:2019-04-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Previous studies reported that tapentadol-sulfate represented one of the major metabolites of tapentadol excreted in urine. The current study aimed to identify the human cytosolic sulfotransferases (SULTs) that is(are) capable of sulfating tapentadol and to examine whether human cells and huma...
journal_title:European journal of drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.1007/s13318-016-0392-8
更新日期:2017-10-01 00:00:00
abstract::[14C]Haloperidol decanoate was hydrolysed by partially purified carboxylesterase but not in plasma, blood, lymph and lymphatic liquid. These fluids inhibited the enzyme-mediated hydrolysis of the ester. Within the same incubation period as above, the ester was found hydrolysed to various extents in cell cultures of is...
journal_title:European journal of drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.1007/BF03189895
更新日期:1987-07-01 00:00:00
abstract::Carboxylesterases (CESs) play major roles in catalyzing the hydrolysis of a wide range of ester- and amide-containing compounds. CESs dominate both the biotransformation of numerous therapeutic drugs and the detoxification of environmental toxicants, and the activity alteration of CESs may be a determinant reason for ...
journal_title:European journal of drug metabolism and pharmacokinetics
pub_type: 杂志文章,评审
doi:10.1007/s13318-016-0326-5
更新日期:2016-08-01 00:00:00
abstract::The metabolism of galanthamine hydrobromide (Nivalin) was investigated in rat and rabbit liver homogenates. Experiments were carried out varying several parameters of incubation: substrate (galanthamine hydrobromide, galanthamine, galanthaminone and epigalanthamine), cofactor enrichment (NADPH, NADP/G-6-P, NAD), pH (7...
journal_title:European journal of drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.1007/BF03189858
更新日期:1987-01-01 00:00:00
abstract::Cytochrome P450 from rat brain mitochondrial and microsomal fractions was found to be inducible by 3-methylcholanthrene, both in quantity of enzyme and in activity towards 7-ethoxyresorufin, which is a model substrate for the cytochrome P450 isoform specifically induced by 3-methylcholanthrene. Conversely, a phenobarb...
journal_title:European journal of drug metabolism and pharmacokinetics
pub_type: 杂志文章
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更新日期:1987-10-01 00:00:00