Validation of an assay for voriconazole in serum samples using liquid chromatography-tandem mass spectrometry.

abstract：:A 64-year-old man on chronic hemodialysis for end-stage renal disease developed peritoneal carcinomatosis, and palliative chemotherapy with fluorouracil was started. The drug was administered (325 mg/m as IV bolus, at 2 PM) on 2 separate occasions, ie, 1 hour after dialysis and 2 days later, 49 hours after dialysis. T...

journal_title：Therapeutic drug monitoring

authors： Gusella M,Rebeschini M,Cartei G,Ferrazzi E,Ferrari M,Padrini R

更新日期：2005-12-01 00:00:00

abstract：:Theophylline clearance was estimated by a single-sample technique in 19 subjects with acute clinical respiratory infections. Mean (+/- SD) theophylline clearance during acute illness was 0.044 +/- 0.011 L X h-1 X kg-1 compared to 0.043 +/- 0.012 L X h-1 X kg-1 1 month later. In a subset of five subjects, single-sample...

journal_title：Therapeutic drug monitoring

authors： Bachmann K,Schwartz J,Martin M,Jauregui L

更新日期：1987-09-01 00:00:00

abstract：BACKGROUND:Despite significant interindividual variability in prednisolone pharmacokinetics and potentially serious consequences with inadequate or excessive exposure, monitoring of prednisolone levels is not employed to guide therapy. As ultrahigh-performance liquid chromatography-tandem mass spectrometry methods can ...

journal_title：Therapeutic drug monitoring

authors： Yates CJ,Barraclough KA,McWhinney BC,Ungerer JP,Fullinfaw RO,Colman PG,Fourlanos S,Cohney SJ

更新日期：2014-02-01 00:00:00

abstract：:We report a clinically relevant suspected interaction between acyclovir and the antiepileptic drugs phenytoin (PHT) and valproic acid (VPA). In a child receiving PHT and VPA therapy, a 6-day acyclovir treatment reduced PHT and VPA plasma concentrations to subtherapeutic values. This probably worsened both clinical sta...

journal_title：Therapeutic drug monitoring

authors： Parmeggiani A,Riva R,Posar A,Rossi PG

更新日期：1995-06-01 00:00:00

abstract：:Lamotrigine (LG), phenytoin (PY), carbamazepine (CM), and carbamazepine epoxide (CE) are measured with an optimized procedure that uses thin sorbent extraction disks and a highly selective, sterically protected bonded silica high-performance liquid chromatography (HPLC) column. Routinely, serum (200 microliters at pH ...

journal_title：Therapeutic drug monitoring

authors： Lensmeyer GL,Gidal BE,Wiebe DA

更新日期：1997-06-01 00:00:00

abstract：:A method is described for the determination of vigabatrin in 50 microliters of plasma by isocratic high-performance liquid chromatography using fluorescence detection. The procedure involves protein precipitation with methanol followed by precolumn derivatisation with o-phthaldialdehyde reagent. Separation of the deri...

journal_title：Therapeutic drug monitoring

authors： Tsanaclis LM,Wicks J,Williams J,Richens A

更新日期：1991-05-01 00:00:00

abstract：:Drug discovery programs are actively exploring for therapeutic agents targeting enzymes and receptors regulating sphingolipid metabolism and biologic functions. FTY720 is a close structural analogue of sphingosine with immunomodulatory properties. After oral administration, FTY720 is phosphorylated by sphingosine kina...

journal_title：Therapeutic drug monitoring

authors： Kovarik JM,Schmouder RL,Slade AJ

更新日期：2004-12-01 00:00:00

abstract：:The emergence of point-of-care assays enabling bedside testing such as the VerifyNow P2Y12 system might prove useful in clinical settings. The aim of this study was to evaluate the ability of the VerifyNow P2Y12 assay to estimate the inhibition of platelet aggregation provided by clopidogrel in the absence of baseline...

journal_title：Therapeutic drug monitoring

authors： Lordkipanidzé M,Pharand C,Nguyen TA,Schampaert E,Diodati JG

更新日期：2008-06-01 00:00:00

abstract：:Pharmacokinetics of intravenous and oral pulsed high-dose dexamethasone were studied in four patients with pemphigus vulgaris. Doses for dexamethasone were varied from 100 to 300 mg. Serum concentrations were measured by high-performance liquid chromatographic procedure with diode assay detection. Bioavailability was ...

journal_title：Therapeutic drug monitoring

authors： Tóth GG,Kloosterman C,Uges DR,Jonkman MF

更新日期：1999-10-01 00:00:00

abstract：:To develop a new method for quantifying fluoconazole in human plasma and to compare the bioavailability of two fluconazole capsule formulations, an open, randomized, two-period crossover study with a one-week washout interval was conducted in 24 healthy volunteers. Plasma samples were obtained up to 168 hours after dr...

journal_title：Therapeutic drug monitoring

authors： Moraes LA,Lerner FE,Moraes ME,Moraes MO,Corso G,De Nucci G

更新日期：1999-04-01 00:00:00

abstract：:The interaction between valproic acid (VPA) and phenytoin (DPH) was examined during therapeutic monitoring in an epileptic outpatient population. Gas-liquid chromatographic methods were used to measure DPH and VPA concentrations. (1) In 12 patients on stable DPH regimens, the mean DPH level declined from 19.7 to 15.3 ...

journal_title：Therapeutic drug monitoring

authors： Friel PN,Leal KW,Wilensky AJ

更新日期：1979-01-01 00:00:00

abstract：:The immunosuppressants cyclosporine, tacrolimus, sirolimus, everolimus, and probably also mycophenolic acid require therapeutic drug monitoring (TDM)-guided dosing to ensure that blood concentrations are kept within the target range in transplant patients. Reliable, accurate, and precise test methods are therefore ess...

journal_title：Therapeutic drug monitoring

authors： Christians U,Vinks AA,Langman LJ,Clarke W,Wallemacq P,van Gelder T,Renjen V,Marquet P,Meyer EJ

更新日期：2015-12-01 00:00:00

abstract：:The pharmacokinetic equations of Chiou, Koup, and Kurland are often used in the pediatric setting to predict steady-state theophylline clearance using non-steady serum theophylline concentrations. However, these equations have not been validated or compared in a pediatric population. We evaluated the ability of these ...

journal_title：Therapeutic drug monitoring

authors： Reiter PD,Hogue SL,Phelps SJ

更新日期：1992-10-01 00:00:00

abstract：:A radioimmunoassay (RIA) procedure for the determination of sulforidazine in human plasma was developed using an antiserum raised in rabbits immunized with N-(2-carboxyethyl)desmethylsulforidazine-porcine thyroglobulin conjugate. The RIA procedure can measure as low as 40 pg of sulforidazine in a 200-microliter human ...

journal_title：Therapeutic drug monitoring

authors： Chakraborty BS,Hawes EM,Midha KK

更新日期：1988-01-01 00:00:00

abstract：BACKGROUND:The Clinical Pharmacology Quality Assurance (CPQA) program provides semiannual proficiency testing (PT) of antiretroviral analytes for 11 US and international clinical pharmacology laboratories (CPLs) to ensure interlaboratory comparability. In this article, we provide estimates of the main sources of variab...

journal_title：Therapeutic drug monitoring

authors： Browne RW,Rosenkranz SL,Wang Y,Taylor CR,DiFrancesco R,Morse GD

更新日期：2019-08-01 00:00:00

abstract：:Mycophenolic acid, the active metabolite of the immunosuppressant and antiproliferative agent, mycophenolate mofetil, is primarily metabolized by glucuronidation to the inactive 7-O-glucuronide. Although the uridine diphosphate (UDP) 7-O-glucuronide is the principal excretion product of this drug, carboxyl-linked gluc...

journal_title：Therapeutic drug monitoring

authors： Mackenzie PI

更新日期：2000-02-01 00:00:00

abstract：:Currently no pharmacogenomics-based criteria exist to guide clinicians in identifying individuals who are at risk of hearing loss from cisplatin-based chemotherapy. This review summarizes findings from pharmacogenomic studies that report genetic polymorphisms associated with cisplatin-induced hearing loss and aims to ...

journal_title：Therapeutic drug monitoring

authors： Lee JW,Pussegoda K,Rassekh SR,Monzon JG,Liu G,Hwang S,Bhavsar AP,Pritchard S,Ross CJ,Amstutz U,Carleton BC,CPNDS Clinical Recommendations Group.

更新日期：2016-08-01 00:00:00

abstract：:Central venous access catheters are commonly used in clinical oncology. The double lumen variant is applied in pharmacokinetic studies for simultaneous administration and blood sampling when frequent blood collections are necessary. Occlusion of one lumen, a common complication, necessitates the investigator perform b...

journal_title：Therapeutic drug monitoring

authors： de Jonge ME,Mathôt RA,van Dam SM,Rodenhuis S,Beijnen JH

更新日期：2003-06-01 00:00:00

abstract：:The clinical usefulness of cyclosporine is hampered by dose-limiting toxicities to the kidney that are not predicted by drug levels in serum or whole blood. Because of its lipophilic nature, circulating plasma lipoproteins may play a role in drug disposition. This study characterized the pharmacokinetic parameters of ...

journal_title：Therapeutic drug monitoring

authors： Brunner LJ,Luke DR,Lautersztain J,Williams LA,LeMaistre CF,Yau JC

更新日期：1990-03-01 00:00:00

abstract：:The prevalence of gestational ethanol exposure and subsequent fetal exposure has been assessed in a cohort of mother-infant dyads in a Mediterranean city (Barcelona, Spain) by meconium analysis of fatty acid ethyl esters (FAEEs) after showing in this population a high prevalence of meconium opiates (8.7%), cocaine (4....

journal_title：Therapeutic drug monitoring

authors： Garcia-Algar O,Kulaga V,Gareri J,Koren G,Vall O,Zuccaro P,Pacifici R,Pichini S

更新日期：2008-04-01 00:00:00

abstract：BACKGROUND/OBJECTIVES:Drug of abuse consumption throughout pregnancy is a serious public health problem and an important economic cost to the health system. The aim of this work was to compare maternal interview and hair analysis to determine drug consumption throughout pregnancy and to study relations among maternal i...

journal_title：Therapeutic drug monitoring

authors： Lendoiro E,González-Colmenero E,Concheiro-Guisán A,de Castro A,Cruz A,López-Rivadulla M,Concheiro M

更新日期：2013-06-01 00:00:00

abstract：:The current standard of monitoring transplant patients by drug levels is not optimal because it does not take into account the different and individual effects of immunosuppressive drugs on each patient. In this study, the authors tested immune function assays for monitoring transplant patients. Blood was collected fr...

journal_title：Therapeutic drug monitoring

authors： Stalder M,Bîrsan T,Holm B,Haririfar M,Scandling J,Morris RE

更新日期：2003-02-01 00:00:00

abstract：:Mixed-effect modeling has been suggested as a possible tool to detect and describe drug interactions in patient populations receiving drug combinations for the treatment of disease states. The mixed-effect modeling program, NONMEM, was used to measure the effects of the well-known digoxin-quinidine and digoxin-verapam...

journal_title：Therapeutic drug monitoring

authors： Bauer LA,Horn JR,Pettit H

更新日期：1996-02-01 00:00:00

abstract：:The pharmacokinetic interaction between chloroquine (CQ) and imipramine was investigated in six healthy volunteers who received 300 mg of CQ, 50 mg of imipramine, and combined doses of both drugs in a randomized, crossover design. Blood and urine samples were collected at predetermined time intervals and were analyzed...

journal_title：Therapeutic drug monitoring

authors： Onyeji CO,Toriola TA,Ogunbona FA

更新日期：1993-02-01 00:00:00

abstract：:The DuPont theophylline assay reagent kit, a particle-enhanced turbidimetric inhibition immunoassay (PETINIA) method adapted for use on a centrifugal fast analyzer, was evaluated. It was compared with fluorescence polarization immunoassay (FPIA). Day-to-day precision was 4.7% at 6.8 micrograms/ml, and 3.3% at 26.6 mic...

journal_title：Therapeutic drug monitoring

authors： Lawrence JL,Elser RC

更新日期：1986-01-01 00:00:00

abstract：:5alpha-Reductase inhibitors such as finasteride are prohibited in sports according to the World Anti-Doping Agency. This class of drugs is used therapeutically to treat benign prostatic hyperplasia, as well as male baldness, by decreasing 5alpha-reductase activity. Accordingly, metabolic pathways of endogenous as well...

journal_title：Therapeutic drug monitoring

authors： Thevis M,Geyer H,Mareck U,Flenker U,Schänzer W

更新日期：2007-04-01 00:00:00

abstract：:The selection of an appropriate therapy and dosing regimen is a significant challenge in the treatment of cancer. Although there are recommended standardized chemotherapy protocols for some types of cancer, protocol changes that usually only occur after large clinical trials demonstrate improvements and individual pat...

journal_title：Therapeutic drug monitoring

authors： Knezevic CE,Clarke W

更新日期：2020-02-01 00:00:00

abstract：BACKGROUND:Serum trough concentrations as the sole means of monitoring safety and efficacy of vancomycin are insufficient. The daily area under the curve (AUC24) of serum concentration versus time to minimum inhibitory concentration (MIC) ratio of greater than 400 mg × h/L has emerged as a more robust dosing target. A ...

journal_title：Therapeutic drug monitoring

authors： Lewis P

更新日期：2018-06-01 00:00:00

abstract：:The use of therapeutic drug monitoring strategies for cyclosporin (CsA) has evolved markedly in recent years since previous consensus guidelines were presented. Apart from the introduction of some new methods, the major change has been the shift away from the traditional predose/trough (C0) sample. The most popular al...

journal_title：Therapeutic drug monitoring

authors： Morris RG,Holt DW,Armstrong VW,Griesmacher A,Napoli KL,Shaw LM,IFCC\/IATDMCT Joint Working Group.

更新日期：2004-04-01 00:00:00

abstract：:The authors refer to their experience with alternative matrices to supervise the methadone therapy of heroin abusers. For this purpose, hair, sweat, and urine samples were collected from 10 heroin addicts and from a control group and were submitted to gas chromatographic/mass spectroscopic analysis for methadone and i...

journal_title：Therapeutic drug monitoring

authors： Fucci N,De Giovanni N

更新日期：2007-08-01 00:00:00