相关实验视频
Updated: Jul 14, 2025

10:43
Evaluating In Vitro DNA Damage Using Comet Assay
Published on: October 11, 2017
37.7K
奥拉巴里布的药理动力学提升:一个随机交叉研究 (PROACTIVE-研究)
Joanneke K Overbeek1, Niels A D Guchelaar2, Ma Ida Mohmaed Ali3
1Department of Pharmacy, Research Institute for Medical Innovation, Radboud University Medical Center, Nijmegen, Gelderland, the Netherlands.
概括
与cobicistat一起提高olaparib的药理动力学提升增加了药物暴露,但没有达到剂量等效. 需要进一步的研究来证实强化olaparib治疗的耐受性.
科学领域:
- 药理学 药理学是指药理学的学科.
- 临床药房 临床药房
- 药物相互作用 药物相互作用
背景情况:
- 药物动力学 (PK) 提升有意使用药物相互作用来增加药物暴露.
- 增强CYP3A基质olaparib可能会降低变异性和成本.
- 这项研究评估了强化,较低的olaparib剂量与标准剂量的等价性.
研究的目的:
- 为了研究与标准剂量相比,降低,增加剂量olaparib的药理学等价性.
- 评估cobicistat作为olaparib的药理动力学增强剂的疗效.
主要方法:
- 一个交叉,多中心试验比较了每天两次 (BID) 的olaparib 300 mg与每天两次 (BID) 的olaparib 100 mg,并增加了cobicistat 150 mg.
- 患者顺序接受标准和增强疗法,并在七天后进行PK采样.
- 相当性被定义为AUC0-12h的几何平均比率 (GMR) 的90% CI,边界设为0.57-1.25.
主要成果:
- 在15名患者中,12名患者完成了PK分析.
- AUC0-12小时的GMR为1.45 (90% CI为1.27-1.65),表明暴露增加了45%.
- 没有报告≥3级不良事件.
结论:
- 与cobicistat一起提升olaparib 100 mg两次,与标准的300 mg两次剂量相比,增加了1.45倍的暴露.
- 剂量等价性没有确定.
- 增强剂量是减少剂量的潜在策略,但在更高的暴露下,耐受性需要进一步研究.
相关概念视频
Nonlinear Pharmacokinetics: Dependence of Elimination Half-Life and Dose Clearance
176
The elimination half-life and drug clearance of drugs following nonlinear kinetics can vary with dosage. The Michaelis-Menten parameters and drug concentration influence these factors. As the dose increases, the elimination half-life tends to lengthen, resulting in a reduction in clearance and a disproportionately larger area under the curve. The total clearance can be derived from the Michaelis-Menten equation for drugs following a one-compartment model.
A study on guinea pigs examined the...
A study on guinea pigs examined the...
176
Analysis of Population Pharmacokinetic Data
273
Analysis of population pharmacokinetic data involves studying the behavior of drugs within diverse populations to understand their pharmacokinetic parameters. Traditional pharmacokinetic methods typically involve collecting samples from a few individuals and estimating these parameters. While these methods are commonly used, they have limitations in capturing the variability in drug response among individuals or heterogeneous populations. Population pharmacokinetics is employed to address these...
273
Pharmacokinetics: Overview
6.5K
Pharmacokinetics is a scientific discipline that focuses on the journey of a drug within the body, encompassing four key stages: absorption, distribution, metabolism, and elimination. The first stage, absorption, involves the drug's transfer into the bloodstream. Several factors dictate the extent and speed of this process. For example, the liver often metabolizes oral drugs before they reach systemic circulation, leading to only partial absorption. In contrast, intravenous (IV)...
6.5K
Noncompartmental Analysis: Miscellaneous Pharmacokinetic Parameters
114
The noncompartmental approach is a widely used method in pharmacokinetics to assess drugs' behaviors in the body. It considers several factors, including clearance, bioavailability, and total volume of distribution.
One key aspect of the noncompartmental approach is determining a drug's total clearance. This can be done by dividing the drug dose by the area under the concentration-time curve from zero to infinity. The area under the concentration-time curve represents the drug's...
One key aspect of the noncompartmental approach is determining a drug's total clearance. This can be done by dividing the drug dose by the area under the concentration-time curve from zero to infinity. The area under the concentration-time curve represents the drug's...
114
Model-Independent Approaches for Pharmacokinetic Data: Noncompartmental Analysis
81
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...
One important characteristic of noncompartmental analyses is that drug exposure increases proportionally with increasing doses. This...
81
Pharmacovigilance
866
Post-marketing surveillance is a critical component of pharmaceutical regulation, often uncovering unanticipated adverse drug reactions (ADRs) once a drug is widely used over an extended period.
This process, termed pharmacovigilance, aims to detect, evaluate, and minimize harmful effects related to medication use. The data collection for pharmacovigilance depends on spontaneous reporting systems, where healthcare professionals or patients voluntarily report suspected ADRs.
In some cases, there...
This process, termed pharmacovigilance, aims to detect, evaluate, and minimize harmful effects related to medication use. The data collection for pharmacovigilance depends on spontaneous reporting systems, where healthcare professionals or patients voluntarily report suspected ADRs.
In some cases, there...
866

