在体外连续脏替代疗法期间,埃多克萨班的药理动力学
Eric Wenzler1, Kaitlyn Dalton1,2, Lauren Andrews1,3
1Department of Pharmacy Practice, College of Pharmacy, MHPE, BCPS - AQ Cardiology, FCCM, FCCP, University of Illinois at Chicago, 833 South Wood Street, Room 164 (M/C 886), Chicago, IL, 60612, USA.
BMC nephrology
|October 10, 2024
概括
连续脏替代疗法 (CRRT) 期间的埃多克萨班清除主要是由于过吸附. 在CRRT患者中,建议每天服用45毫克的埃多克萨班,以达到治疗水平.
科学领域:
- 药理动力学和药物新陈代谢
- 腎病學和重症醫療醫學 腎病學和重症醫學
- 抗凝固疗法 抗凝固疗法
背景情况:
- 持续的置换疗法 (CRRT) 对患有功能衰竭的重症患者至关重要.
- 埃多克萨班是一种直接的口服抗凝剂,对其在CRRT中的使用数据有限.
- 了解EDOXABAN在CRRT期间的行为对于安全有效的抗凝剂至关重要.
研究的目的:
- 为了评估在体外CRRT期间的edoxaban清除值.
- 为了评估edoxaban的蛋白质结合和电路吸附.
- 为CRRT患者提供埃多克萨班的初始剂量建议.
主要方法:
- 在体外实验中使用连续静脉静脉血过 (CVVH) 和血液透析 (CVVHD) 模式进行实验.
- 使用液体染色学-并联质谱法量化埃多克萨班和尿素度.
- 药理动力学分析和多变量模型来评估清除因子.
主要成果:
- 埃多克萨班清除主要通过血过吸附 (74%与HF1400,65%与M150).
- 平均蛋白质结合率为41%,CRRT模式,过器类型或稀释对清除没有显著影响.
- 估计每天30-45毫克的剂量可以在各种废水流速中达到目标暴露.
结论:
- 预计每日45毫克的埃多克萨班剂量可在CRRT患者中实现治疗性全身暴露.
- 这种剂量策略需要对安全性和有效性的进一步临床研究.
- 在CRRT期间,埃多克萨班的药物动力学概况可以根据废水流速来预测.
相关概念视频
Continuous Renal Replacement Therapy
2
Continuous Renal Replacement Therapy, also known as CRRT, is a procedural treatment for acute kidney injury (AKI) that gradually removes uremic toxins and fluids while maintaining acid-base balance and stabilizing electrolytes. It is particularly useful for hemodynamically unstable patients. Unlike intermittent hemodialysis, which is faster, CRRT provides a gentler approach over 24 hours, closely mimicking the function of natural kidneys. However, CRRT is not ideal for patients with...
2
Renal Failure: Dose Adjustments
68
In patients with renal impairment, drugs undergo significant changes in their pharmacokinetics, which require dosage adjustments to ensure safe and effective therapy.
Reduced renal clearance and elimination rate are common outcomes of renal impairment. These alterations lead to a prolonged elimination half-life and an altered apparent volume of distribution for drugs. As a result, dosage adjustments are typically necessary to maintain optimal drug levels in the body.
However, dosage adjustments...
Reduced renal clearance and elimination rate are common outcomes of renal impairment. These alterations lead to a prolonged elimination half-life and an altered apparent volume of distribution for drugs. As a result, dosage adjustments are typically necessary to maintain optimal drug levels in the body.
However, dosage adjustments...
68
Renal Drug Excretion: Tubular Reabsorption
121
Tubular reabsorption, a process occurring post-glomerular filtration of drugs in the renal tubule, is a critical determinant of drug half-life. During the process of renal excretion, as the glomerular filtrate progresses to the distal convoluted tubule (DCT), drugs that are highly permeable, lipophilic, and nonionized undergo passive reabsorption from the tubular fluid into the surrounding peritubular capillaries. This reabsorption process restricts their elimination through the kidneys. This...
121
Renal Drug Clearance: Overview
143
Renal clearance is a crucial parameter in pharmacokinetics that quantifies the rate at which the kidneys excrete a drug. It represents a constant fraction of the central volume of distribution containing the drug that the kidney eliminates per unit of time.
Renal clearance can be calculated using different methods. One approach is to divide the urinary drug excretion rate by the plasma drug concentration. This method directly measures renal clearance, indicating the kidneys' efficiency in...
Renal clearance can be calculated using different methods. One approach is to divide the urinary drug excretion rate by the plasma drug concentration. This method directly measures renal clearance, indicating the kidneys' efficiency in...
143
Renal Drug Excretion: Tubular Secretion
147
Active tubular secretion is a robust, energy-demanding process that utilizes carrier systems to transport drugs into renal tubules. The active renal secretion systems include the organic anion transporter (OAT) for weak acids and the organic cation transporter (OCT) for weak bases. Structurally similar drugs can compete for the same transporter, potentially leading to drug accumulation and toxicity. However, this principle can be exploited therapeutically. One example is probenecid (Probalan),...
147
Factors Affecting Renal Clearance: Drug Distribution and Drug Interactions
106
Renal clearance plays a pivotal role in drug elimination from the body and can be influenced by drug distribution and interactions. Understanding these factors is crucial in pharmacology as they impact the effectiveness and duration of drug therapy.
One important factor is the relationship between renal clearance and the apparent volume of distribution. Renal clearance tends to be inversely proportional to the apparent volume of distribution. Drugs with an extensive distribution volume or those...
One important factor is the relationship between renal clearance and the apparent volume of distribution. Renal clearance tends to be inversely proportional to the apparent volume of distribution. Drugs with an extensive distribution volume or those...
106


