在骨和关节感染中使用利沃素: 开发一种基于模型的精确剂量应用
在PubMed上查看摘要
概括
此摘要是机器生成的。贝叶斯估计准确地预测了使用有限的样本对骨感染的勒沃素暴露 (AUC0-24). 一个免费的网络应用程序有助于精确的剂量,尽管Cmax估计仍然具有挑战性.
科学领域
- 药理学
- 传染性疾病
- 计算生物学
背景情况
- 对于骨和关节感染来说,利沃素非常重要.
- 治疗失败和耐药性需要精确的剂量策略.
- 需要使用药物动力学/药物动力学 (PK/PD) 监测工具.
研究的目的
- 评估贝叶斯估计用于预测levofloxacin AUC0 - 24和Cmax.
- 开发一个基于模型的精确剂量 Web 应用程序.
- 在骨感染中比较人群PK模型.
主要方法
- 对已公布的 PK 模型进行系统审查.
- 在各种采样场景下使用模拟数据进行贝叶斯估计.
- 使用现实数据队列进行验证.
- 开发和验证一个免费的基于网络的应用程序.
主要成果
- 一个选定的勒沃素PK模型显示出良好的预测性能.
- 一个限量采样策略 (T0h-T3h) 准确估计了AUC0-24.
- 在所有测试场景中,Cmax的估计结果并不令人满意.
- 开发了一个验证的网络应用程序 (https://levoshiny.iame-research.center/).
结论
- 用有限的样本进行贝叶斯估计,可有效预测levofloxacin治疗中的AUC0- 24.
- 开发的网络应用程序可为骨和关节感染提供精确的剂量.
- 可能需要进一步优化Cmax估计.
相关概念视频
Clearance is a key pharmacokinetic parameter that quantifies the volume of body fluid from which a drug is entirely removed within a specific time frame. It is crucial in assessing how a drug is eliminated from the body and has critical clinical applications.
In the one-compartment open model for intravenous (IV) bolus administration, clearance is estimated by dividing the elimination rate by the plasma drug concentration. This equation leverages the elimination rate constant and the apparent...
Noncompartmental analyses offer an alternative method for describing drug pharmacokinetics without relying on a specific compartmental model. In this approach, the drug's pharmacokinetics are assumed to be linear, with the terminal phase log-linear. This assumption allows for simplified analysis and interpretation of the drug's behavior in the body.
One important characteristic of noncompartmental analyses is that drug exposure increases proportionally with increasing doses. This...
The one-compartment model is a pharmacokinetic tool that models the body as a single, uniform compartment, facilitating the understanding of drug distribution and elimination. This model is particularly beneficial for intravenous (IV) bolus administration, where the drug rapidly circulates throughout the body.
The drug's presence in the body is defined by an equation representing the difference between the rates of drug entry and exit. Key parameters—elimination rate constant,...
The one-compartment open model is a simplified approach used in pharmacokinetics to understand the distribution and elimination of a drug administered through an intravenous bolus. This model assumes rapid drug dispersal throughout the body and elimination using a first-order process. Key pharmacokinetic parameters, such as the elimination rate constant (k), half-life (t1/2), and the apparent volume of distribution (Vd), can be estimated from this model. The elimination rate is calculated...
A rational dosage regimen considers a drug's pharmacokinetics, including its absorption, distribution, metabolism, and elimination from the body. By understanding these factors, the appropriate dosage can be determined, and the dosing schedule can be designed to achieve and maintain the desired therapeutic effect while minimizing adverse effects.
In most cases, drugs are administered repetitively or infused continuously to maintain a steady-state concentration in the body. At a steady...
Overview
Researchers use antibiotic resistance genes to identify bacteria that possess a plasmid containing their gene of interest. Antibiotic resistance naturally occurs when a spontaneous DNA mutation creates changes in bacterial genes that eliminate antibiotic activity. Bacteria can share these new resistance genes with their offspring and other bacteria. The overuse and misuse of antibiotics have created a public health crisis, as resistant and multi-resistant bacteria continue to develop.

