keyword
MENU ▼
Read by QxMD icon Read
search

Population pharmacokinetics

keyword
https://www.readbyqxmd.com/read/28819726/population-pharmacokinetics-of-stiripentol-in-paediatric-patients-with-dravet-syndrome-treated-with-stiripentol-valproate-and-clobazam-combination-therapy
#1
Sophie Peigné, Stéphanie Chhun, Michel Tod, Elisabeth Rey, Christelle Rodrigues, Catherine Chiron, Gérard Pons, Vincent Jullien
AIM: The aim of this study was to describe the pharmacokinetics of stiripentol in children with Dravet syndrome and to determine the concentrations of stiripentol achieved in this population for the usual 25 mg/kg twice-daily dose. METHODS: Thirty-five children with epilepsy were included in a prospective population pharmacokinetic study (using MONOLIX software). Four blood samples were drawn per patient. Stiripentol area under the plasma concentration-time curve (AUC) values and trough concentrations were simulated for 7000 theoretical children weighing between 10 and 70 kg for the 25 mg/kg twice-daily dose...
August 17, 2017: Clinical Pharmacokinetics
https://www.readbyqxmd.com/read/28818713/historical-human-exposure-to-perfluoroalkyl-acids-in-the-united-states-and-australia-reconstructed-from-biomonitoring-data-using-population-based-pharmacokinetic-modelling
#2
Melissa I Gomis, Robin Vestergren, Matthew MacLeod, Jochen F Mueller, Ian T Cousins
Perfluorooctanoic acid (PFOA), perfluorooctanesulfonic acid (PFOS) and perfluorohexanesulfonic acid (PFHxS) are found in the blood of humans and wildlife worldwide. Since the beginning of the 21st century, a downward trend in the human body burden, especially for PFOS and PFOA, has been observed while there is no clear temporal trend in wildlife. The inconsistency between the concentration decline in human serum and in wildlife could be indicative of a historical exposure pathway for humans linked to consumer products that has been reduced or eliminated...
August 14, 2017: Environment International
https://www.readbyqxmd.com/read/28817653/perilymph-pharmacokinetics-of-marker-applied-through-a-cochlear-implant-in-guinea-pigs
#3
Alec Salt, Jared Hartsock, Ruth Gill, Daniel Smyth, Jonathon Kirk, Kristien Verhoeven
Patients undergoing cochlear implantation could benefit from a simultaneous application of drugs into the ear, helping preserve residual low-frequency hearing and afferent nerve fiber populations. One way to apply drugs is to incorporate a cannula into the implant, through which drug solution is driven. For such an approach, perilymph concentrations achieved and the distribution in the ear over time have not previously been documented. We used FITC-labeled dextran as a marker, delivering it into perilymph of guinea pigs at 10 or 100 nL/min though a cannula incorporated into a cochlear implant with the outlet in the mid basal turn...
2017: PloS One
https://www.readbyqxmd.com/read/28817201/exposure-response-modeling-and-power-analysis-of-components-of-acr-response-criteria-in-rheumatoid-arthritis-part-2-continuous-model
#4
Liang Li, Yi Zhang, Lian Ma, Ping Ji, Sarah Yim, Badrul A Chowdhury, Suresh Doddapaneni, Jiang Liu, Yaning Wang, Chandrahas Sahajwalla
Population pharmacokinetic/pharmacodynamic (PK/PD) models were developed to quantitate the exposure-response relationships using continuous longitudinal data on American College of Rheumatology (ACR) subcomponents, that is, tender-joint count (TJC), swollen-joint count (SJC), C-reactive protein, patient's assessment of pain, patient's global assessment of disease activity, physician's global assessment of disease activity, and patient's assessment of physical function for 5 biologics approved for use in rheumatoid arthritis...
September 2017: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28817199/exposure-response-modeling-and-power-analysis-of-components-of-acr-response-criteria-in-rheumatoid-arthritis-part-1-binary-model
#5
Liang Li, Yi Zhang, Lian Ma, Ping Ji, Sarah Yim, Badrul Chowdhury, Suresh Doddapaneni, Jiang Liu, Yaning Wang, Chandrahas Sahajwalla
American College of Rheumatology (ACR) response criteria is used to assess improvement in tender and swollen joint counts and in 3 of the 5 core measures (acute-phase reactant, physician global assessment, patient global assessment, pain, and physical function). From the clinical trial data on 5 approved biological products for the treatment of rheumatoid arthritis, population pharmacokinetic/pharmacodynamic models were developed to quantitatively describe the relationship between exposure and response rates of 3 individual components of ACR response criteria...
September 2017: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28815754/pharmacokinetic-interactions-and-dosing-rationale-for-antiepileptic-drugs-in-adults-and-children
#6
S C van Dijkman, W M Rauwé, M Danhof, O Della Pasqua
AIM: Population pharmacokinetic modelling has been widely used across many therapeutic areas to identify sources of variability, which are incorporated into models as covariate factors. Despite numerous publications on pharmacokinetic (PK) drug-drug interactions (DDIs) between antiepileptic drugs (AEDs), such data are not used to support the dose rationale for polytherapy in the treatment of epileptic seizures. Here we assess the impact of DDIs on plasma concentrations and evaluate the need for AED dose adjustment...
August 16, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28815428/the-pharmacology-and-toxicology-of-third-generation-anticonvulsant-drugs
#7
REVIEW
Paul LaPenna, Laura M Tormoehlen
Epilepsy is a neurologic disorder affecting approximately 50 million people worldwide, or about 0.7% of the population [1]. Thus, the use of anticonvulsant drugs in the treatment of epilepsy is common and widespread. There are three generations of anticonvulsant drugs, categorized by the year in which they were developed and released. The aim of this review is to discuss the pharmacokinetics, drug-drug interactions, and adverse events of the third generation of anticonvulsant drugs. Where available, overdose data will be included...
August 16, 2017: Journal of Medical Toxicology: Official Journal of the American College of Medical Toxicology
https://www.readbyqxmd.com/read/28811228/curcumin-in-alzheimer-s-disease-can-we-think-to-new-strategies-and-perspectives-for-this-molecule
#8
REVIEW
Serafini Melania Maria, Catanzaro Michele, Rosini Michela, Racchi Marco, Lanni Cristina
Population aging is an irreversible global trend with economic and socio-political consequences. One of the most invalidating outcomes of aging in the elderly is cognitive decline, leading to dementia and often related to neurodegenerative disorders. Among these latter, Alzheimer's disease (AD) is the major cause of dementia, affecting more than 30 million of individuals worldwide. To date, the treatment of AD remains a challenge because of an incomplete understanding of the events that lead to the selective neurodegeneration typical of Alzheimer's brains...
August 12, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28810510/estimation-of-caffeine-intake-from-analysis-of-caffeine-metabolites-in-wastewater
#9
Emma Gracia-Lor, Nikolaos I Rousis, Ettore Zuccato, Richard Bade, Jose Antonio Baz-Lomba, Erika Castrignanò, Ana Causanilles, Félix Hernández, Barbara Kasprzyk-Hordern, Juliet Kinyua, Ann-Kathrin McCall, Alexander L N van Nuijs, Benedek G Plósz, Pedram Ramin, Yeonsuk Ryu, Miguel M Santos, Kevin Thomas, Pim de Voogt, Zhugen Yang, Sara Castiglioni
Caffeine metabolites in wastewater were investigated as potential biomarkers for assessing caffeine intake in a population. The main human urinary metabolites of caffeine were measured in the urban wastewater of ten European cities and the metabolic profiles in wastewater were compared with the human urinary excretion profile. A good match was found for 1,7-dimethyluric acid, an exclusive caffeine metabolite, suggesting that might be a suitable biomarker in wastewater for assessing population-level caffeine consumption...
August 8, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28807922/are-standard-doses-of-piperacillin-in-piperacillin-tazobactam-regimens-adequate-for-the-management-of-febrile-neutropenia-answers-from-population-pharmacokinetic-modelling-and-monte-carlo-simulations
#10
Fekade Bruck Sime, Uwe Hahn, Morgyn S Warner, Ing Soo Tiong, Michael S Roberts, Jeffrey Lipman, Sandra L Peake, Jason A Roberts
Changes in the pharmacokinetics of piperacillin in febrile neutropenic patients have been reported to result in sub-optimal exposures. This study aimed to develop a population pharmacokinetic model for piperacillin and perform dosing simulation to describe optimal dosing regimens for haematological malignancy patients with febrile neutropenia. Concentration-time data were obtained from previous prospective observational pharmacokinetic and interventional therapeutic drug monitoring studies. Non-parametric population pharmacokinetic analysis and Monte Carlo dosing simulations were performed with Pmetrics® package for R...
August 14, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28807914/amplification-of-antimicrobial-resistance-in-gut-flora-of-patients-treated-with-ceftriaxone
#11
J Meletiadis, A Turlej-Rogacka, A Lerner, A Adler, E Taconelli, J W Mouton
Although antibacterial therapy has an impact on human intestinal flora and emergence of resistant bacteria, its role on amplification of antimicrobial resistance and the quantitative exposure-effect relationship is not clear. An observational prospective study was conducted to determine whether and how ceftriaxone exposure is related to amplification of resistance in non- ICU patients.Serial stool samples from 122 ESBL(+) hospitalized patients were analyzed with quantitative real-time PCR to quantify the resistant gene blaCTX-M Drug exposure was calculated for each patient using a population pharmacokinetic model...
August 14, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28807912/safety-and-efficacy-of-mhaa4549a-a-broadly-neutralizing-monoclonal-antibody-in-a-human-influenza-a-challenge-model-a-phase-2-randomized-trial
#12
Jacqueline M McBride, Jeremy J Lim, Tracy Burgess, Rong Deng, Michael A Derby, Mauricio Maia, Priscilla Horn, Omer Siddiqui, Daniel Sheinson, Haiyin Chen-Harris, Elizabeth M Newton, Dimitri Fillos, Denise Nazzal, Carrie M Rosenberger, Maikke B Ohlson, Rob Lambkin-Williams, Hosnieh Fathi, Jeffrey M Harris, Jorge A Tavel
BACKGROUND: MHAA4549A, a human monoclonal antibody targeting the hemagglutinin stalk region of influenza A virus (IAV), is being developed as a therapeutic for patients hospitalized with severe IAV infection. Safety and efficacy of MHAA4549A were assessed in a randomized, double-blind, placebo-controlled, dose-ranging study in a human IAV-challenge model. METHODS: One hundred healthy volunteers were inoculated with A/Wisconsin/67/2005 (H3N2) IAV and, 24-36 hours later, administered a single intravenous dose of either placebo, MHAA4549A (400, 1200, or 3600 mg) or a standard oral dose of oseltamivir...
August 14, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28807905/pulmonary-pharmacokinetics-of-colistin-following-administration-of-dry-powder-aerosols-in-rats
#13
Yu-Wei Lin, Qi Tony Zhou, Yang Hu, Nikolas J Onufrak, Siping Sun, Jiping Wang, Alan Forrest, Hak-Kim Chan, Jian Li
Colistin has been administered via nebulization for the treatment of respiratory tract infections. Recently, dry powder inhalation (DPI) has attracted increasing attention. The current study aimed to investigate the pharmacokinetics (PK) of colistin in epithelial lining fluid (ELF) and plasma following DPI and intravenous (IV) administration in healthy Sprague-Dawley rats. Rats were given colistin as DPI intratracheally (0.66 and 1.32 mg base/kg) or IV injection (0.66 mg base/kg). Histopathological examination of lung tissue was performed at 24 h...
August 14, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28807770/gsta1-genetic-variants-and-conditioning-regimen-missing-key-factors-in-dosing-guidelines-of-busulfan-in-pediatric-hematopoietic-stem-cell-transplantation
#14
T Nava, M A Rezgui, Crs Uppugunduri, P Huezo-Diaz Curtis, Y Théoret, M Duval, L E Daudt, M Ansari, M Krajinovic, H Bittencourt
Busulfan (Bu) is a key component of conditioning regimens used prior to hematopoietic stem cell transplantation (SCT) in children. Different predictive methods have been used to calculate the Bu first-dose. To evaluate the necessity of further improvements, we retrospectively analyzed the currently available weight- and age-based guidelines to calculate the first doses in 101 children who underwent allogenic SCT in CHU Sainte-Justine, Montreal, following an intravenous Bu-containing conditioning regimen according to genetic and clinical factors...
August 11, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28807643/-use-of-subcutaneous-route-for-comfort-care%C3%A2-in-neonatal-palliative-population-systematic-review-and-survey-of-practices-in-france
#15
N Pouvreau, J Tandonnet, O Tandonnet, L Renesme
INTRODUCTION: Subcutaneous hydration (hypodermoclysis) and drug administration is a widely used method of analgesic therapy in adult palliative care medicine. Very little is known about its use in neonatal medicine. Evidence-based guidelines do not exist due to a lack of data. In this study, the advantages of subcutaneous analgesic therapy in terms of comfort in neonatal palliative care situations were investigated. METHODS: This report details the results of a systematic review associated with a survey in neonatal intensive care units (NICUs) and pediatric palliative care departments (PPCTs) in France...
August 11, 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28803492/rifampin-vs-rifapentine-what-is-the-preferred-rifamycin-for-tuberculosis
#16
Omamah Alfarisi, Wael A Alghamdi, Mohammad H Al-Shaer, Kelly E Dooley, Charles A Peloquin
One-third of the world's population is infected with Mycobacterium tuberculosis (M.tb.). Latent tuberculosis infection (LTBI) can progress to tuberculosis disease, the leading cause of death by infection. Rifamycin antibiotics, like rifampin and rifapentine, have unique sterilizing activity against M.tb. What are the advantages of each for LTBI or tuberculosis treatment? Areas covered: We review studies assessing the pharmacokinetics (PK), pharmacodynamics (PD), drug interaction risk, safety, and efficacy of rifampin and rifapentine and provide basis for comparing them...
August 14, 2017: Expert Review of Clinical Pharmacology
https://www.readbyqxmd.com/read/28801680/population-pharmacokinetics-of-peginterferon-%C3%AE-2a-in-patients-with-chronic-hepatitis-b
#17
Jingfeng Bi, Xingang Li, Jia Liu, Dawei Chen, Shuo Li, Jun Hou, Yuxia Zhou, Shanwei Zhu, Zhigang Zhao, Enqiang Qin, Zhenman Wei
There were significant differences in response and pharmacokinetic characteristics to the peginterferon α2a treatment among Chronic Hepatitis B (CHB) patients. The aim of this study is to identify factors which could significantly impact the peginterferon α2a pharmacokinetic characteristics in CHB patients. There were 208 blood samples collected from 178 patients who were considered as CHB and had been treated with peginterferon α2a followed by blood concentration measurement and other laboratory tests. The covariates such as demographic and clinical characteristics of the patients were retrieved from medical records...
August 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28800195/pharmacokinetics-safety-and-tolerability-of-glecaprevir-and-pibrentasvir-in-healthy-white-chinese-and-japanese-adult-subjects
#18
Chih-Wei Lin, Sandeep Dutta, Bifeng Ding, Tianli Wang, Neddie Zadeikis, Armen Asatryan, Jens Kort, Andrew Campbell, Thomas Podsadecki, Wei Liu
Glecaprevir and pibrentasvir are direct-acting antiviral agents being developed as combination therapy for the treatment of chronic hepatitis C virus infection. The aim of the present studies was to assess the effect of race and ethnicity (white, Han Chinese, Japanese) on the pharmacokinetics and safety of multiple oral doses of glecaprevir and pibrentasvir given alone and in combination. Two multiple-dose, single-center, phase 1 studies were conducted in healthy adult male and female subjects (n = 170) of respective Asian and white race/ethnicity...
August 11, 2017: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28794832/perioperative-management-and-monitoring-of-antiplatelet-agents-a-focused-review-on-aspirin-and-p2y12-inhibitors
#19
REVIEW
Michael A Mazzeffi, Khang Lee, Bradley Taylor, Kenichi A Tanaka
Platelets play pivotal roles in hemostasis as well as pathological arterial thrombosis. The combination of aspirin and a P2Y12 inhibitor has become the mainstay therapy in the ageing population with cardiovascular conditions, particularly during and after percutaneous coronary intervention. A number of novel P2Y12 inhibitors has become available in the recent years, and they markedly vary in pharmacokinetic and pharmacodynamic properties. Perioperative physicians today face a challenge of preventing hemorrhage due to platelet inhibitors, while minimizing thrombotic risks...
August 2017: Korean Journal of Anesthesiology
https://www.readbyqxmd.com/read/28791655/current-and-emerging-options-for-the-management-of-inherited-von-willebrand-disease
#20
REVIEW
Jessica M Heijdra, Marjon H Cnossen, Frank W G Leebeek
Von Willebrand disease (VWD) is the most common inherited bleeding disorder with an estimated prevalence of ~1% and clinically relevant bleeding symptoms in approximately 1:10,000 individuals. VWD is caused by a deficiency and/or defect of von Willebrand factor (VWF). The most common symptoms are mucocutaneous bleeding, hematomas, and bleeding after trauma or surgery. For decades, treatment to prevent or treat bleeding has consisted of desmopressin in milder cases and of replacement therapy with plasma-derived concentrates containing VWF and Factor VIII (FVIII) in more severe cases...
August 8, 2017: Drugs
keyword
keyword
25970
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"