نتایج جستجو برای: pharmacokinetic
تعداد نتایج: 25201 فیلتر نتایج به سال:
Deoxypodophyllotoxin (DPT) is a potential anti-tumor candidate prior to its clinical phase. The aim of the study was to develop a physiologically based pharmacokinetic (PBPK) model consisting of 13 tissue compartments to predict DPT disposition in mouse, rat, monkey, and dog based on in vitro and in silico inputs. Since large interspecies difference was found in unbound fraction of DPT in plasm...
The pharmacokinetics of clarithromycin and its 14-(R)-hydroxylated metabolite were studied on two separate occasions after nasogastric administration of 500 mg of a clarithromycin suspension to 16 seriously ill adults in an intensive care unit. The clarithromycin suspension appeared to be adequately absorbed, and the pharmacokinetics of neither clarithromycin nor 14-(R)-hydroxyclarithromycin di...
The optimization of pharmacokinetic properties remains one of the most challenging aspects of drug design. Key parameters, clearance and volume of distribution, are multifactorial, which makes deriving structure-pharmacokinetic relationships difficult. The correction of clearance and volume of distribution for the unbound fraction in plasma is one approach taken that has enabled quantitative st...
The pharmacokinetics of 2,000 mg of sulfadiazine administered twice daily (BID) versus those of 1,000 mg administered four times a day were compared in eight human immunodeficiency virus-infected patients. No differences in pharmacokinetic parameters were detected between the regimens. These data provide a pharmacokinetic rationale for BID dosing of sulfadiazine for the treatment and suppressio...
Physiologically based pharmacokinetic (PBPK) modeling and classical population pharmacokinetic (PK) model-based simulations are increasingly used to answer various drug development questions. In this study, we propose a methodology to optimize the development of drugs, primarily cleared by the kidney, using model-based approaches to determine the need for a dedicated renal impairment (RI) study...
We propose a stochastic model for the drug concentration in the case of multiple oral doses and in a situation of poor patient adherence. Our model is able to take into account an irregular drug intake schedule. This article is the second in a series of three. It presents a multi-oral version of the results given in Lévy-Véhel and Lévy-Véhel (J Pharmacokinet Pharmacodyn 40(1):15-39, 2013), that...
The translational sciences aim to transfer results from basic research to the treatment of animals or patients. One of the approaches that could be utilized to achieve this goal is the in vitro-in vivo extrapolation (IVIVE) of pharmacokinetic (PK) and pharmacodynamic (PD) properties using in silico methods. Such methodology, if properly applied, could help substantially reduce the use of animal...
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