在接受连续脏替代疗法的急性功能衰竭患者中优化可纳的剂量:一个人群的药理动力学/药理动力学研究
Shengnan Zhang1, Wenhua Zhang2, Tingting Wu1
1Department of Pharmacy, The Third Xiangya Hospital, Central South University, Changsha, China.
Frontiers in pharmacology
|April 14, 2025
概括
目前的弗卢可纳剂量指南在接受连续置换治疗的急性功能衰竭患者中失败. 需要新的模型和软件来优化抗真菌药物剂量以获得更好的患者结果.
科学领域:
- 药理学 药理学是指药理学的学科.
- 腎臟病學 (nephrology) 是一種醫學專業.
- 传染性疾病 传染性疾病
背景情况:
- 在接受连续代疗法 (CRRT) 的急性功能衰竭 (ARF) 患者中,可纳的药理动力学是复杂的.
- 现有的剂量指南不能充分解决这些复杂性,可能导致治疗失败.
- 在这种脆弱人群中,优化可纳剂量对于有效的抗真菌疗法至关重要.
研究的目的:
- 在CRRT的ARF患者中开发可纳的种群药动力学模型.
- 评估当前剂量指南在实现药理动力学/药理动力学目标方面的有效性.
- 在复杂的CRRT场景中创建一个工具来优化可纳剂量.
主要方法:
- 使用297个文献来源的血度数据点构建了一个人群的药理动力学模型,来自16名CRRT患者.
- 将目标定义为自由药物度-时间曲线下的24小时区域,以最小抑制度比≥100.
- 开发了一个交互式R Shiny网络应用程序,用于剂量优化.
主要成果:
- 药物动力学模型包括功能衰竭和影响清除的CRRT剂量,以及影响分布体积的体重.
- 指南推的可纳剂量在低CRRT剂量时显示出有限的目标实现,在中度至高CRRT剂量时失败.
- 根据体重和CRRT参数进行剂量调整是最佳治疗的必要条件.
结论:
- 目前的富可纳剂量指南对于接受CRRT的ARF患者来说是不够的.
- 一个群体的药理动力学模型和一个专门的软件工具可以显著改善可纳的剂量策略.
- 优化剂量对于实现治疗目标和改善重症患者的临床结果至关重要.
相关概念视频
01:11Renal Failure: Dose Adjustments
37
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...
37
01:17Factors Affecting Renal Clearance: Renal Impairment
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Renal dysfunction significantly impairs the renal clearance of drugs, leading to potential complications in drug therapy. Renal failure, which can be caused by various factors, poses a significant challenge in the elimination of drugs from the body.
One condition associated with renal failure is uremia. Uremia is characterized by impaired glomerular filtration and fluid accumulation in the body. This condition hinders the renal clearance of drugs, resulting in drug accumulation and potential...
One condition associated with renal failure is uremia. Uremia is characterized by impaired glomerular filtration and fluid accumulation in the body. This condition hinders the renal clearance of drugs, resulting in drug accumulation and potential...
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01:09Factors Affecting Renal Clearance: Drug Distribution and Drug Interactions
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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...
71
01:06Renal Drug Clearance: Overview
77
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...
77
01:31Factors Affecting Renal Clearance: Drug's Physicochemical Properties and Plasma Levels
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Renal clearance of a drug is influenced by various factors, including its physicochemical properties and plasma levels. These factors play a significant role in determining how efficiently the kidneys eliminate a drug.
One important factor is the drug's molecular size. The kidneys readily excrete smaller molecules below 300 Daltons (Da). On the other hand, molecules weighing between 300 and 500 Da are excreted through both urine and bile. Larger molecules above 500 Da tend to be excreted...
One important factor is the drug's molecular size. The kidneys readily excrete smaller molecules below 300 Daltons (Da). On the other hand, molecules weighing between 300 and 500 Da are excreted through both urine and bile. Larger molecules above 500 Da tend to be excreted...
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01:24Rational Dosage Regimen: Maintenance Dose and Loading Dose
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