基于机器学习的算法,用于医院住院脏移植患者的塔克罗利斯剂量优化.
Dong Jin Park1, Mihyeong Kim2, Hyungjin Cho2
1Department of Laboratory Medicine, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul 03083, Republic of Korea.
Diagnostics (Basel, Switzerland)
|December 11, 2025
概括
机器学习模型可以预测移植患者的塔克罗利斯水平,改善个性化剂量. 这种人工智能驱动的方法增强了免疫抑制管理,并降低了毒性风险.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 药理学 药理学是指药理学的学科.
- 人工智能在医学中的应用
背景情况:
- 塔克罗利莫斯对移植患者至关重要,但治疗指数较窄,导致剂量变化.
- 目前的治疗药物监测 (TDM) 是经验性的,可能无法完全捕捉个体的药理动力学.
- 机器学习 (ML) 提供了一种精确的方法,通过分析多个患者变量来优化塔克罗利斯剂量.
研究的目的:
- 开发和评估机器学习模型,用于预测移植患者下一天的塔克罗利斯度.
- 评估不同ML算法的性能,包括组合方法,以优化塔克罗利斯剂量.
- 通过模型解释性技术,确定影响塔克罗利斯水平的关键临床和生化因素.
主要方法:
- 从87名脏移植患者的1351个数据点进行了回顾性分析.
- 训练XGBoost,CatBoost,LightGBM和MLP模型来预测塔克罗利斯水平.
- 使用R平方,MAE和RMSE评估模型性能;通过SHAP分析解释性.
主要成果:
- 一个整体模型实现了最高的性能 (R2 = 0.6297,MAE = 1.0181,RMSE = 1.2999).
- 在单个模型中,MLP模型表现出优越的预测能力,突出非线性药物动力学相互作用.
- 关键预测因素包括先前的塔克罗利斯水平,累积剂量,功能标志物 (eGFR,肌素) 和白蛋白.
结论:
- 一个强大的基于ML的算法可以优化移植患者的塔克罗利斯剂量.
- 改善对塔克罗利斯度的预测可以减少患者间的变异性和毒性风险.
- 这种由人工智能驱动的方法推进了精准医学,在移植中实现了更安全,更个性化的免疫抑制管理.
相关概念视频
01:25Drug Dosing in Renal Diseases: Dose Adjustments Based on Drug Clearance and Elimination Rate Constant
192
In patients with renal disease, dosage adjustments are necessary to maintain therapeutic plasma drug concentrations and prevent toxicity or subtherapeutic exposure. Renal impairment alters drug pharmacokinetics, especially in conditions like uremia, where changes such as prolonged elimination half-life and altered apparent volume of distribution can significantly affect drug disposition. These changes require careful modification of the dosing regimen to achieve the desired clinical...
192
01:28Drug Dosing in Renal Diseases: Estimation of Glomerular Filtration Rate Based on Serum Creatinine Concentration
171
Glomerular filtration rate (GFR) can be estimated from serum creatinine using the modification of diet in renal disease (MDRD) formula or the chronic kidney disease–epidemiology collaboration (CKD–EPI) equation. Both methods are widely used in clinical practice to assess kidney function and guide treatment decisions.The MDRD equation does not require weight or height measurements and is normalized to the body surface area of 1.73 m², considered the average adult surface area.
171
01:25Drug Dosing in Renal Diseases: Measurement of Serum Creatinine Concentration and Clearance
170
In healthy individuals, serum creatinine levels remain stable due to a balance between its constant production—primarily from muscle metabolism—and renal excretion. Creatinine is freely filtered by the glomeruli, making it a valuable marker for estimating renal function. When the glomerular filtration rate (GFR) decreases, the kidneys can only eliminate less creatinine, causing serum levels to rise.Serum creatinine concentration is widely used to estimate creatinine clearance...
170
01:11Renal Failure: Dose Adjustments
404
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...
404
01:23Dosage Regimen Designs: Nomograms and Tabulations
156
Nomograms and tabulations are vital tools used by clinicians to design accurate and individualized dosage regimens. These instruments provide a straightforward method for adjusting dosages based on individual patient characteristics, including age, weight, and physiological condition. The foundation of a drug's nomogram is population pharmacokinetic data collected and analyzed using specific models. This data simplifies complex equations, presenting them diagrammatically or tabularly for easy...
156
01:15Determination of Multiple Dosing Parameters: Steady-State, Minimum and Maximum Concentrations
215
Gentamicin, an aminoglycoside antibiotic, is commonly administered via intermittent intravenous infusion to treat severe infections. An intermittent one-hour infusion of gentamicin, administered at eight-hour intervals, allows for precise control of plasma drug concentrations, minimizing toxicity while ensuring therapeutic efficacy. Pharmacokinetic principles govern the dynamics of plasma concentrations and can be mathematically described using specific equations.The plasma drug concentration...
215