Ultra fast liquid chromatography-tandem mass spectrometry routine method for simultaneous determination of cyclosporin A, tacrolimus, sirolimus, and everolimus in whole blood using deuterated internal standards for cyclosporin A and everolimus.

abstract：BACKGROUND:The objective of this study was to investigate the serum concentrations of olanzapine in relation to age, sex, and other factors in Chinese patients aged between 10 and 90 years. METHODS:Data for 884 olanzapine patients, deposited between 2016 and 2017, were retrieved from the therapeutic drug monitoring da...

journal_title：Therapeutic drug monitoring

authors： Deng SH,Wang ZZ,Lu HY,Li L,Hu JQ,Zhu XQ,Xie HS,Chen HZ,Zhang M,Ni XJ,Qiu C,Shang DW,Wen YG

更新日期：2020-08-01 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：:Measurement of whole blood and plasma levels of cyclosporin A (CsA) by radioimmunoassay in kidney transplant recipients receiving the drug showed that CsA concentrations in plasma increased nonlinearly when whole blood levels of the drug exceeded 1,000 ng/ml. At low plasma levels (less than 200 ng/ml), most of the CsA...

journal_title：Therapeutic drug monitoring

authors： Agarwal RP,McPherson RA,Threatte GA

更新日期：1985-01-01 00:00:00

abstract：:Major advances in immunosuppression and reductions in the rates of acute rejection have led to increasing graft and patient survival rates during the past two decades. Chronic dysfunction of the renal allograft, however, remains a major clinical problem and probably represents the end result of the complex interplay b...

journal_title：Therapeutic drug monitoring

authors： Kaplan B,Srinivas TR,Meier-Kriesche HU

更新日期：2002-02-01 00:00:00

abstract：BACKGROUND:The once-daily formulation of tacrolimus has been reported to exhibit the same efficacy and safety profile as compared with the immediate-release form administered twice daily. However, as a result of differences in their pharmacokinetic (PK) profile, the PK models or Bayesian estimators (MAP-BE) previously ...

journal_title：Therapeutic drug monitoring

authors： Saint-Marcoux F,Debord J,Undre N,Rousseau A,Marquet P

更新日期：2010-04-01 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：:Effects of carbamazepine coadministration on plasma concentrations of trazodone and its active metabolite, m-chlorophenylpiperazine (m-CPP) were studied in six depressed patients treated with trazodone. The daily dose of trazodone was 150 mg in three cases and 300 mg in three cases. Carbamazepine, 400 mg/day, was coad...

journal_title：Therapeutic drug monitoring

authors： Otani K,Ishida M,Kaneko S,Mihara K,Ohkubo T,Osanai T,Sugawara K

更新日期：1996-04-01 00:00:00

abstract：:Eight patients are described who displayed excessive concentrations of nortriptyline, imipramine, or clomipramine on routine blood level monitoring. Under these conditions, the patients did not respond to the treatment. All patients were markedly improved when the daily dosage of the antidepressant was reduced with a ...

journal_title：Therapeutic drug monitoring

authors： Balant-Gorgia AE,Balant LP,Garrone G

更新日期：1989-01-01 00:00:00

abstract：:Prescribed daily doses (PDDs) of antiepileptic drugs (AED) (N03A ATC group) were recorded for drugs used in monotherapy or in combination therapy in the University Hospitals in Ostrava, Czech Republic and Huddinge, Sweden. Plasma concentrations were used as an indicator of the quality of treatment. PDDs were compared ...

journal_title：Therapeutic drug monitoring

authors： Koristkova B,Sjöqvist F,Grundmann M,Bergman U

更新日期：2006-10-01 00:00:00

abstract：:The effect of heparin sodium on the assay of gentamicin using the fluorescence polarization immunoassay system was investigated with varying heparin and gentamicin concentrations. Heparin had no significant effect on gentamicin concentrations as measured by this system. ...

journal_title：Therapeutic drug monitoring

authors： Jackson DS,Bertino JS Jr

更新日期：1984-01-01 00:00:00

abstract：:Nineteen acutely disturbed psychotic Asian patients were treated with a single intramuscular injection of 50 mg of zuclopenthixol acetate in Viscoleo. Patients were assessed clinically before and after treatment using the Brief Psychiatric Rating Scale (BPRS). Serum zuclopenthixol and the inactive geometric isomer tra...

journal_title：Therapeutic drug monitoring

authors： Tan CH,Low BL,Ng LL,Khoo YM,Lee HS

更新日期：1993-04-01 00:00:00

abstract：:Whole blood steady-state trough concentrations of cyclosporine were measured by radioimmunoassay (RIA) and TDx assays employing monoclonal antibodies in 82 samples from 39 renal transplant patients. Intra- and interassay coefficients of variation for the new TDx technique averaged 3.2 and 5.4%, respectively. In the co...

journal_title：Therapeutic drug monitoring

authors： Klotz U

更新日期：1991-09-01 00:00:00

abstract：:Australia is blessed with a great diversity of unique species in its fresh waters and in the marine environment around its coast. There is evidence that human and natural events are impacting on these species. Such impacts are associated with various agricultural, industrial, and domestic practices and with natural an...

journal_title：Therapeutic drug monitoring

authors： Moore MR,Shaw G

更新日期：2000-02-01 00:00:00

abstract：:Several lipophilic, cytotoxic drugs, or both, (including anticancer drugs [Vinca alkaloids, doxorubicin, cyclosporin A, and digoxin]) have proven to be actively effluxed by P-glycoprotein (P-gp) expressed at the luminal membrane of the brain capillary endothelial cells, resulting in the very low apparent blood-brain b...

journal_title：Therapeutic drug monitoring

authors： Tsuji A

更新日期：1998-10-01 00:00:00

abstract：:The aminoglycoside antibiotics gentamicin and tobramycin have been monitored traditionally by measuring peak and trough drug levels in serum. We found interpretation of these data to be hazardous, due to variations in the drug administration-specimen collection process and routine medical events and practices. We desc...

journal_title：Therapeutic drug monitoring

authors： Gorsky JE,Latts JR

更新日期：1983-06-01 00:00:00

abstract：:Their common clinical use, frequency of adverse effects, serious therapeutic indications, treatment failures, and availability of sensitive assays make corticosteroids such as prednisone and prednisolone candidates for therapeutic drug monitoring. Complicating the interpretation of plasma drug concentrations are the f...

journal_title：Therapeutic drug monitoring

authors： Jusko WJ,Rose JQ

更新日期：1980-01-01 00:00:00

abstract：:The high incidence of psychiatric illness in the postpartum period and the increasing percentage of women who breastfeed has focused attention on the treatment of breastfeeding women with psychotropic medications and, additionally, the exposure of nursing infants to these medications. Consequently, there has been an i...

journal_title：Therapeutic drug monitoring

authors： Hostetter AL,Stowe ZN,Cox M,Ritchie JC

更新日期：2004-02-01 00:00:00

abstract：:Sixty-two serum samples from 28 pediatric epileptic patients under treatment with phenytoin [diphenylhydantoin (DPH)] were obtained to study the correlation between total and free serum DPH concentrations. The effect of coadministered antiepileptic drugs on DPH protein binding was also studied. Binding of DPH to serum...

journal_title：Therapeutic drug monitoring

authors： Johno I,Kuzuya T,Suzuki K,Hasegawa M,Nakamura T,Kitazawa S,Aso K,Watanabe K

更新日期：1988-01-01 00:00:00

abstract：:The major goal of immunosuppressive development is improved selectivity of the drug's inhibitory action against T and B cell-mediated as opposed to nonspecific granulocyte-, monocyte-, and macrophage-mediated resistance. This enterprise demands increased knowledge of alloantigen-induced stimulation, signal transductio...

journal_title：Therapeutic drug monitoring

authors： Kahan BD

更新日期：1995-12-01 00:00:00

abstract：:It has recently been shown that acute changes of venous blood ammonia (NH3) may predict short-term adverse effects of valproic acid (VPA). In the present study, the time course of NH3 concentration after a single oral dose of VPA (800 mg) was monitored in 68 epileptic patients. Patients were classified into four group...

journal_title：Therapeutic drug monitoring

authors： Zaccara G,Paganini M,Campostrini R,Moroni F,Valenza T,Messori A,Bartelli M,Arnetoli G,Zappoli R

更新日期：1985-01-01 00:00:00

abstract：BACKGROUND:Posaconazole is an azole antifungal agent with a broad spectrum of activity and a manageable side-effect profile. Although the pharmacokinetics of posaconazole have been described in healthy volunteers who received the drug by means of a nasogastric tube or with nutritional supplements, the pharmacokinetics ...

journal_title：Therapeutic drug monitoring

authors： Ray J,Campbell L,Rudham S,Nguyen Q,Marriott D

更新日期：2011-08-01 00:00:00

abstract：:Therapeutic drug monitoring (TDM) is commonly employed to optimize the dosing of certain drugs, including digoxin, aminoglycosides, theophylline, and phenytoin. Studies were reviewed in order to (a) evaluate the effect of TDM on the occurrence of toxic drug reactions (TDRs) and (b) identify factors that may modify or ...

journal_title：Therapeutic drug monitoring

authors： Ried LD,Horn JR,McKenna DA

更新日期：1990-01-01 00:00:00

abstract：:Eight commercial digoxin immunoassay methods were tested in 17 subjects taking spironolactone (but not digoxin) to evaluate cross-reactivity from parent drug and/or metabolites. Four of these methods showed significant (up to 1.9 nmol/L) and variable "apparent digoxin" concentrations, despite the absence of digoxin in...

journal_title：Therapeutic drug monitoring

authors： Morris RG,Lagnado PY,Lehmann DR,Frewin DB,Glistak ML,Burnet RB

更新日期：1987-06-01 00:00:00

abstract：:Digitalis-like immunoreactive substances (DLIS) obtained from maternal and umbilical cord plasma at delivery were measured by fluorescence polarization immunoassay (FPIA; TDX, Abbott) and microparticle enzyme immunoassay (MEIA; IMX, Abbott). In each sample, concentrations of dehydroepiandrosterone, dehydroepiandroster...

journal_title：Therapeutic drug monitoring

authors： Ijiri Y,Hayashi T,Kamegai H,Ohi K,Suzuki K,Kitaura Y,Takenaka H

更新日期：2003-04-01 00:00:00

abstract：:To study the effect of pharmacologic agents on the biologic fate of adenosine, a reversed-phase high-performance liquid chromatography (HPLC) assay coupled with a solid-phase extraction (SPE) method was developed for simultaneous determination of plasma adenosine, hypoxanthine, xanthine, inosine, guanosine, and uric a...

journal_title：Therapeutic drug monitoring

authors： Feng JD,Yeung PK

更新日期：2000-04-01 00:00:00

abstract：BACKGROUND:Non-vitamin K antagonist oral anticoagulants (NOACs) are approved for several indications for prophylaxis of thromboembolism at fixed oral doses. The analysis of NOAC activity/concentration may be required in special patient populations. Heptest coagulation assay determines both factor Xa and thrombin inhibi...

journal_title：Therapeutic drug monitoring

authors： Du S,Harenberg J,Krämer S,Krämer R,Wehling M,Weiss C

更新日期：2015-06-01 00:00:00

abstract：:A population pharmacokinetic model was developed after administration of orogastric and/or intravenous indomethacin for the treatment of patent ductus arteriosus in preterm infants. Plasma indomethacin concentrations (n=227) were obtained from 90 preterm infants of median gestational age 27 weeks, mean postnatal age o...

journal_title：Therapeutic drug monitoring

authors： Al Za'abi M,Donovan T,Tudehope D,Woodgate P,Collie LA,Charles B

更新日期：2007-12-01 00:00:00

abstract：BACKGROUND:Paclitaxel (PTX; Taxol, Abraxane) is used in many regimens for breast cancer, non-small cell lung cancer (NSCLC), and ovarian cancer. Multiple studies have demonstrated that PTX exhibits a greater than 10-fold interpatient variability of clearance rates when patients are dosed according to body surface area ...

journal_title：Therapeutic drug monitoring

authors： Cline DJ,Zhang H,Lundell GD,Harney RL,Riaz HK,Jarrah J,Li Y,Miyazaki M,Courtney JB,Baburina I,Salamone SJ

更新日期：2013-12-01 00:00:00

abstract：:The development of inexpensive in-house reagents for the assay of carbamazepine in serum, using a commercially available derivative and antiserum is described. They were adapted for use on the Abbott TDx as direct replacements for commercial reagents. Comparison with a high-performance liquid chromatography method is ...

journal_title：Therapeutic drug monitoring

authors： Colbert DL,Turner GJ

更新日期：1993-06-01 00:00:00

abstract：:This case report highlights a very rare adverse drug reaction caused by oral aripiprazole resulting in severe hypoglycemia. A 72-year-old-male patient suffering from Parkinson disease on prolonged carbidopa plus levodopa combination therapy (carbidopa 25 mg plus levodopa 100 mg, thrice daily) for 1.3 years was recentl...

journal_title：Therapeutic drug monitoring

authors： Mondal S,Saha I,Das S,Ganguly A,Ghosh A,Kumar Das A

更新日期：2012-06-01 00:00:00