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https://www.readbyqxmd.com/read/28937535/validation-of-a-commercial-assay-and-decision-support-tool-for-routine-paclitaxel-therapeutic-drug-monitoring-tdm
#1
Markus Joerger, Stefanie Kraff, Ulrich Jaehde, Ralf A Hilger, Jodi B Courtney, Daniel J Cline, Sonali Jog, Irina Baburina, M C Miller, Salvatore J Salamone
BACKGROUND: The value of therapeutic drug monitoring (TDM) for paclitaxel was recently demonstrated in the largest TDM trial ever conducted in oncology. The trial demonstrated significant reduction in neuropathy when using TDM. Dose adjustment for paclitaxel was based on time above a threshold concentration (Tc>0.05). Tc>0.05 must be calculated with a pharmacokinetic model and complex non-linear mixed effects (NLME) software. The use of the software and chromatographic methods to measure paclitaxel require specialized expertise...
September 18, 2017: Therapeutic Drug Monitoring
https://www.readbyqxmd.com/read/28932906/safety-study-and-therapeutic-drug-monitoring-of-the-oral-tablet-formulation-of-posaconazole-in-patients-with-haematological-malignancies
#2
C Boglione-Kerrien, S Picard, C Tron, S Nimubona, J-P Gangneux, S Lalanne, F Lemaitre, E Bellissant, M-C Verdier, A Petitcollin
PURPOSE: Posaconazole is a triazole antifungal widely used for prophylaxis of invasive fungal disease (IFI). Posaconazole tablets allow reaching higher plasma levels than the oral suspension, but safety data with this formulation in real life are scarce. This study aimed at evaluating the safety profile, the pharmacokinetic variability, and the concentration-toxicity relationship of posaconazole tablets in patients with haematological malignancies. METHODS: Sixty neutropenic patients treated with posaconazole tablets for prophylaxis of IFI were prospectively included in the study...
September 20, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/28932267/clinical-performance-of-an-infliximab-rapid-quantification-assay
#3
Fernando Magro, Joana Afonso, Susana Lopes, Rosa Coelho, Raquel Gonçalves, Paulo Caldeira, Paula Lago, Helena Tavares de Sousa, Jaime Ramos, Ana Rita Gonçalves, Paula Ministro, Isadora Rosa, Tânia Meira, Patrícia Andrade, João-Bruno Soares, Diana Carvalho, Paula Sousa, Ana Isabel Vieira, Joanne Lopes, Cláudia Camila Dias, Karel Geboes, Fátima Carneiro
BACKGROUND: Therapeutic drug monitoring (TDM)-based algorithms can be used to guide infliximab (IFX) adjustments in inflammatory bowel disease (IBD) patients. This study aimed to explore a rapid IFX-quantification test from a clinical perspective. METHODS: This manuscript describes a prospective cohort study involving 110 ulcerative colitis (UC) patients on the maintenance phase of IFX. IFX trough levels were quantified using a rapid quantification assay and a commonly-used reference kit...
September 2017: Therapeutic Advances in Gastroenterology
https://www.readbyqxmd.com/read/28928162/therapeutic-drug-monitoring-of-carboplatin-in-high-dose-protocol-ti-ce-for-advanced-germ-cell-tumors-pharmacokinetic-results-of-a-phase-2-multicenter-study
#4
Sotheara Moeung, Christine Chevreau, Sophie Broutin, Jérôme Guitton, Bénédicte Lelièvre, Joseph Ciccolini, Christophe Massard, Aude Fléchon, Rémy Delva, Gwenaëlle Gravis, Jean-Pierre Lotz, Jacques-Olivier Bay, Marine Gross-Goupil, Angelo Paci, Sabrina Marsili, Laurence Malard, Etienne Chatelut, Fabienne Thomas
PURPOSE: We aimed to evaluate the performance of therapeutic drug monitoring (TDM) approach in controlling inter-patient variability of carboplatin exposure (AUC) in patients treated with TI-CE high-dose chemotherapy for advanced germ cell tumors and to assess the possibility of using a formula-based dosing method as a possible alternative. EXPERIMENTAL DESIGN: Eighty nine patients receiving carboplatin for 3 consecutive days during 3 cycles were evaluable for pharmacokinetic study...
September 19, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28922669/a-critical-commentary-on-the-2017-agnp-consensus-guidelines-for-therapeutic-drug-monitoring-in-neuropsychopharmacology
#5
Jose de Leon
In 2004, 2011, and 2017, the Arbeitsgemeinschaft für Neuropsychopharmakologie und Pharmakopsychiatrie (AGNP), a group of German-speaking psychiatric researchers and psychiatrists, published successive versions of therapeutic drug monitoring (TDM) expert group consensus guidelines. The 2017 version has as a major strength its encyclopedic nature, including 1358 references. The guideline has 3 major sections: 1) theoretical aspects of TDM, 2) drug concentration levels in blood to guide neuropsychopharmacotherapy, and 3) practical aspects of TDM in psychiatry and neurology...
September 18, 2017: Pharmacopsychiatry
https://www.readbyqxmd.com/read/28910830/consensus-guidelines-for-therapeutic-drug-monitoring-in-neuropsychopharmacology-update-2017
#6
C Hiemke, N Bergemann, H W Clement, A Conca, J Deckert, K Domschke, G Eckermann, K Egberts, M Gerlach, C Greiner, G Gründer, E Haen, U Havemann-Reinecke, G Hefner, R Helmer, G Janssen, E Jaquenoud, G Laux, T Messer, R Mössner, M J Müller, M Paulzen, B Pfuhlmann, P Riederer, A Saria, B Schoppek, G Schoretsanitis, M Schwarz, M Silva Gracia, B Stegmann, W Steimer, J C Stingl, M Uhr, S Ulrich, S Unterecker, R Waschgler, G Zernig, G Zurek, P Baumann
Therapeutic drug monitoring (TDM) is the quantification and interpretation of drug concentrations in blood to optimize pharmacotherapy. It considers the interindividual variability of pharmacokinetics and thus enables personalized pharmacotherapy. In psychiatry and neurology, patient populations that may particularly benefit from TDM are children and adolescents, pregnant women, elderly patients, individuals with intellectual disabilities, patients with substance abuse disorders, forensic psychiatric patients or patients with known or suspected pharmacokinetic abnormalities...
September 14, 2017: Pharmacopsychiatry
https://www.readbyqxmd.com/read/28901267/therapeutic-drug-monitoring-in-pediatric-ibd-current-application-and-future-perspectives
#7
Sara Lega, Matteo Bramuzzo, Marla Dubinsky
As the paradigm for IBD management is evolving from symptom control to the more ambitious goal of complete deep remission, the concept of personalized medicine, as a mean to deliver individualized treatment with the best effectiveness and safety profile, is becoming paramount. Therapeutic drug monitoring (TDM) is an essential part of personalized medicine wherein serum drug concentrations are used to guide drug dosing on an individual basis. The concept of TDM has been introduced in the field of IBD along with thiopurines, over a decade ago, and evolved around anti-TNFs therapies...
September 11, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28895161/therapeutic-drug-monitoring-of-antitubercular-agents-for-disseminated-mycobacterium-tuberculosis-during-intermittent-haemodialysis-and-continuous-venovenous-haemofiltration
#8
J H Sin, R H Elshaboury, R M Hurtado, A R Letourneau, R G Gandhi
WHAT IS KNOWN AND OBJECTIVE: There is a lack of data regarding therapeutic drug monitoring (TDM) of antitubercular agents in the setting of continuous venovenous haemofiltration (CVVH). We describe TDM results of numerous antitubercular agents in a critically ill patient during CVVH and haemodialysis. CASE SUMMARY: A 49-year-old man was initiated on treatment for disseminated Mycobacterium tuberculosis. During hospital admission, the patient developed critical illness and required renal replacement therapy...
September 11, 2017: Journal of Clinical Pharmacy and Therapeutics
https://www.readbyqxmd.com/read/28893246/voriconazole-and-posaconazole-therapeutic-drug-monitoring-a-retrospective-study
#9
Whitley M Yi, Kelly E Schoeppler, Jaclyn Jaeger, Scott W Mueller, Robert MacLaren, Douglas N Fish, Tyree H Kiser
BACKGROUND: Therapeutic drug monitoring (TDM) aims to minimize the clinical impact of posaconazole and voriconazole pharmacokinetic variability. However, its benefits on clinical outcomes are still being defined. Additionally, TDM data are limited for posaconazole IV and delayed-release tablet formulations among specific patient populations, including critically ill. The aim of this study was to determine the percentage of therapeutic posaconazole and voriconazole drug levels across all formulations in a real-world clinical setting and elucidate factors affecting attainment of target concentrations...
September 11, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28888505/mindfulness-for-novice-pediatric-nurses-smartphone-application-versus-traditional-intervention
#10
Chelsey Morrison Wylde, Nicole E Mahrer, Rika M L Meyer, Jeffrey I Gold
PURPOSE: The current study compares the effects of a traditionally delivered mindfulness (TDM) intervention to a smartphone delivered mindfulness (SDM) intervention, Headspace, an audio-guided mindfulness meditation program, in a group of novice nurses. DESIGN AND METHODS: Novice nurses participating in a pediatric nurse residency program were asked to participate in either a TDM or SDM intervention. Participants (N=95) completed self-administered pencil and paper questionnaires measuring mindfulness skills, and risk and protective factors at the start of their residency and three months after entering the program...
September 2017: Journal of Pediatric Nursing
https://www.readbyqxmd.com/read/28867705/validating-the-effectiveness-of-switching-the-vancomycin-tdm-analysis-software-based-on-the-predictive-accuracy
#11
Shungo Imai, Takehiro Yamada, Nobuhisa Ishiguro, Takenori Miyamoto, Keisuke Kagami, Naoki Tomiyama, Yusuke Niinuma, Daisuke Nagasaki, Koji Suzuki, Akira Yamagami, Kumiko Kasashi, Masaki Kobayashi, Ken Iseki
 Based on the predictive performance in our previous study, we switched the therapeutic drug monitoring (TDM) analysis software for dose setting of vancomycin (VCM) from "Vancomycin MEEK TDM analysis software Ver2.0" (MEEK) to "SHIONOGI-VCM-TDM ver.2009" (VCM-TDM) in January 2015. In the present study, our aim was to validate the effectiveness of the changing VCM TDM analysis software in initial dose setting of VCM. The enrolled patients were divided into two groups, each having 162 patients in total, who received VCM with the initial dose set using MEEK (MEEK group) or VCM-TDM (VCM-TDM group)...
2017: Yakugaku Zasshi: Journal of the Pharmaceutical Society of Japan
https://www.readbyqxmd.com/read/28856214/the-roche-total-mycophenolic-acid%C3%A2-assay-an-application-protocol-for-the-abx-pentra-400-analyzer-and-comparison-with-lc-ms-in-children-with-idiopathic-nephrotic-syndrome
#12
François Parant, Bruno Ranchin, Marie-Claude Gagnieu
BACKGROUND: For TDM of mycophenolate acid (MPA), the Roche Total Mycophenolic Acid® assay based on the inhibition of recombinant inosine monophosphate dehydrogenase (IMPDH) has been shown to be a simple and reliable alternative to chromatographic methods. We have adapted this assay on the ABX Pentra 400 analyzer (HORIBA). OBJECTIVE: To investigate the analytical performances of the Roche Total Mycophenolic Acid® assay on the ABX Pentra 400 and to compare it to an LC-MS method using samples from children with nephrotic syndrome treated with mycophenolate mofetil (MMF)...
April 2017: Pract Lab Med
https://www.readbyqxmd.com/read/28852640/modified-revascularization-in-human-teeth-using-an-intracanal-formation-of-treated-dentin-matrix-a-report-of-two-cases
#13
Payman Mehrvarzfar, Paul V Abbott, Hengameh Akhavan, Sohrab Tour Savadkouhi
Ethylenediaminetetraacetic acid (EDTA)-treated dentin matrix (TDM) is an enriched source of bioactive molecules. Therefore, it was hypothesized that fabrication of autogenous TDM on root dentinal walls of necrotic immature permanent teeth may allow more predictable outcome of revascularization treatments. Two young patients with permanent nonvital immature teeth were chosen for revascularization treatment. After appropriate disinfection of root canal system, TDM was fabricated on root dentinal walls using different dilutions of EDTA...
July 2017: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/28840713/ultrasensitive-detection-of-antiseptic-antibiotics-in-aqueous-media-and-human-urine-using-deep-uv-resonance-raman-spectroscopy
#14
Christian Domes, Robert Domes, Jürgen Popp, Mathias W Pletz, Torsten Frosch
Deep UV resonance Raman spectroscopy is introduced as an analytical tool for ultrasensitive analysis of antibiotics used for empirical treatment of patients with sepsis and septic shock, that is, moxifloxacin, meropenem, and piperacillin in aqueous solution and human urine. By employing the resonant excitation wavelengths λexc = 244 nm and λexc = 257 nm, only a small sample volume and short acquisition times are needed. For a better characterization of the matrix urine, the main ingredients were investigated...
August 25, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28840424/economic-evaluation-of-sequencing-strategies-in-her2-positive-metastatic-breast-cancer-in-mexico-a-contrast-between-public-and-private-payer-perspectives
#15
Vakaramoko Diaby, Askal Ayalew Ali, Krystal J Williams, Kyrian Ezendu, Enrique Soto-Perez-de-Celis, Yanin Chavarri-Guerra, Gilberto de Lima Lopes
PURPOSE: Breast cancer is the most common malignancy among women in Mexico. A large proportion of Mexican patients present with advanced disease, and 25% have HER2-positive tumors. We performed a cost-effectiveness analysis of different sequencing strategies of HER2-targeted agents in Mexico according to various payer perspectives. METHODS: A Markov model was constructed to evaluate the cost-effectiveness of four different HER2-targeted treatment sequences among patients with HER2-positive metastatic breast cancer treated in Mexico according to three public and one private payer perspectives...
August 24, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28839870/use-of-anti-tnf-drug-levels-to-optimise-patient-management
#16
REVIEW
Konstantinos Papamichael, Adam S Cheifetz
Anti-tumour necrosis factor (TNF) therapies, such as infliximab, adalimumab, certolizumab pegol and golimumab, have been proven to be effective for the treatment of patients with Crohn's disease and ulcerative colitis. However, 10%-30% of patients with inflammatory bowel disease (IBD) show no initial clinical benefit to anti-TNF therapy (primary non-response), and over 50% after an initial favourable outcome will lose response over time (secondary loss of response (SLR)). Numerous recent studies in IBD have revealed an exposure-response relationship suggesting a positive correlation between high serum anti-TNF concentrations and favourable therapeutic outcomes including clinical, biomarker and endoscopic remission, whereas antidrug antibodies have been associated with SLR and infusion reactions...
October 2016: Frontline Gastroenterology
https://www.readbyqxmd.com/read/28834212/assessment-of-appropriateness-of-an-initial-dosing-regimen-of-vancomycin-and-development-of-a-new-dosing-nomogram
#17
Seonghae Yoon, Kyoung Ryun Park, SeungHwan Lee, Sang-Hoon Song, Wan Beom Park, In-Jin Jang, Kyung-Sang Yu
Vancomycin is a glycopeptide antibiotic used to treat Gram-positive infections including methicillin-resistant Staphylococcus aureus (MRSA). The objectives of this study were to evaluate the appropriateness of the initial dosing regimen of vancomycin, identify factors to be considered in regimen selection and develop a new dosing nomogram. Therapeutic drug monitoring (TDM) data of vancomycin obtained from Seoul National University Hospital from 2011 to 2013 were included in this analysis. The vancomycin trough concentrations at steady state were estimated using Abbott's PKS software program and then categorized into three levels: subtherapeutic, therapeutic and toxic...
August 20, 2017: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28833942/clinical-and-histological-responses-of-human-dental-pulp-to-mta-and-combined-mta-treated-dentin-matrix-in-partial-pulpotomy
#18
Payman Mehrvarzfar, Paul V Abbott, Fatemeh Mashhadiabbas, Mehdi Vatanpour, Sohrab Tour Savadkouhi
The aim of this study was to compare the responses of mineral trioxide aggregate (MTA) and combined MTA/treated dentin matrix (TDM) as direct pulp capping material. In this clinical trial study, 33 intact third molars in 11 healthy volunteers (three molars in each) were included. Partial pulpotomies were performed in a split mouth manner in two of the third molars in each patient randomly and the third tooth had used as TDM source. The coronal dentin was chopped to dentine chips and transformed to TDM using different concentrations of ethylene diamine tetraacetic acid (EDTA) solution...
August 18, 2017: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/28833329/population-pharmacokinetics-and-bayesian-estimation-of-tacrolimus-exposure-in-chinese-liver-transplant-patients
#19
B Chen, H-Q Shi, X-X Liu, W-X Zhang, J-Q Lu, B-M Xu, H Chen
WHAT IS KNOWN AND OBJECTIVES: Tacrolimus (TAC) is widely used as part of immunosuppressive regimens. There is great interindividual variation on the disposition of TAC. The aim of this study was to develop a population pharmacokinetic (PPK) model for Chinese liver transplant patients and evaluate genetic polymorphism and other possible factors on the PK parameters. The exposure of TAC is to be estimated through Bayesian modelling. METHODS: A total of 47 sets of rich-time PK and 1234 conventional therapeutic drug monitoring (TDM) data were collected from 125 Chinese liver transplant patients...
August 17, 2017: Journal of Clinical Pharmacy and Therapeutics
https://www.readbyqxmd.com/read/28833045/pharmacokinetic-variability-of-valproate-in-women-of-childbearing-age
#20
Cecilie Johannessen Landmark, Margrete Larsen Burns, Arton Baftiu, Anette Huuse Farmen, Morten I Lossius, Svein I Johannessen, Torbjörn Tomson
The purpose was to investigate pharmacokinetic variability of valproic acid (VPA) in women of childbearing age by therapeutic drug monitoring (TDM) data to elucidate the variable relationship between dose and serum concentrations with the ultimate aim of facilitating safer use of VPA. Anonymized retrospective data from the TDM database (2006-2015) at the National Center for Epilepsy in Norway were used. Trough total concentrations of VPA at assumed steady state in women aged 14-46 years were analyzed. Data from 643 nonpregnant women of childbearing age (mean age = 27 years) were included...
August 22, 2017: Epilepsia
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