综合疾病异质性和MPA暴露的模型预测了儿童狼炎中甲酸的系统和效
Baojing Liu1,2, Lizhi Chen3, Jingxuan Lin1,2
1Department of Pharmacy, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China.
Pharmacotherapy
|March 9, 2026
概括
新的模型预测了使用mycophenolate mofetil (MMF) 的儿科狼性炎 (LN) 的治疗反应. 这些模型整合了疾病和药物因素,以个性化为LN儿童提供护理.
科学领域:
- 儿科脏病学 儿科脏病学
- 类风湿病学 类风湿病学
- 药理动力学 药理动力学
- 机器学习在医学中的应用
背景情况:
- 儿科狼性炎 (LN) 的治疗反应有显著的差异.
- 甲酸莫菲蒂尔 (MMF) 是一种常见的诱导疗法,但患者的结果不同.
- 了解影响MMF疗效的因素对于个性化治疗至关重要.
研究的目的:
- 开发和验证儿童LN患者治疗MMF的综合预测模型.
- 预测12个月后低疾病活性 (SLEDAI-2K ≤4) 和完整的反应.
- 将疾病异质性和药物动力学变异性纳入预测模型.
主要方法:
- 分析了120名接受MMF治疗的儿科LN患者.
- 机器学习算法评估了临床,免疫学,脏,肝脏和药物动力学数据.
- 模型性能使用AUC,F1得分,NRI进行评估;通过校准曲线和决策分析进行验证.
主要成果:
- 一个逻辑回归模型预测了低疾病活性,AUC为0.77和F1得分为0.86.
- 基酸暴露 (MPA-AUC) 显著改善了预测 (ΔAUC = +0.05,NRI = 0.1309) 的情况.
- 一个随机森林模型预测了AUC0.88的完整脏反应;MPA暴露是关键.
结论:
- 结合疾病和药物变异性的综合模型准确地分层了儿科LN患者.
- 这些模型可以通过预测个体患者的反应来优化MMF治疗选择.
- 个性化医疗方法对于管理儿科LN的临床变异性至关重要.
相关概念视频
Pharmacokinetics in Pediatric Patients: Drug Excretion
345
In pediatric medicine, understanding the renal function and drug elimination nuances is crucial for administering safe and effective treatments. Newborns, in particular, display markedly slower renal functions than adults, profoundly affecting how drugs are cleared from their bodies. This slower drug clearance requires clinicians to extend the dosing intervals for many medications to prevent drug accumulation and toxicity while ensuring therapeutic efficacy.One key area where these adjustments...
345
Pharmacokinetics in Pediatric Patients: Drug Metabolism
306
In pediatric care, understanding the nuances of hepatic drug metabolism is crucial, as it significantly differs from that of adults. This divergence is primarily due to the developmental stage of drug-metabolizing enzymes, which affects how medications are processed in the body. In neonates, for instance, the activity of Phase I enzymes—critical for the initial breakdown of drugs—is markedly reduced, functioning at just 20–40% of the levels seen in adults. This reduction poses...
306
Pharmacokinetics in Pediatric Patients: Overview and Drug Absorption
605
Understanding the physiological differences in the pediatric population is crucial for effective pharmacotherapy. Neonates, infants, and children exhibit significant variations in gastric pH, gastric emptying time, intestinal transit time, and biliary function. These variations profoundly affect oral drug absorption, necessitating a nuanced approach to pediatric dosing.Neonates present with a unique physiological profile, having a gastric pH greater than 4 and faster and more irregular gastric...
605
Effect of Hepatic Disease on Pharmacokinetics: Pathophysiologic Assessment and Liver Function Test
246
In clinical practice, the direct measurement of hepatic blood flow to evaluate liver function presents significant challenges due to the intricate and specialized nature of the necessary techniques. Consequently, healthcare professionals often rely on empirical estimates derived from thorough patient examinations and liver function tests to gauge liver health. Among the tools at their disposal, the Child–Pugh and MELD scoring systems stand out for their ability to categorize and assess...
246
Pharmacogenetics of Phase II Enzymes: N-acetyltransferase, Thiopurine S-methyltransferase, UDP-glucuronosyltransferase
52
Phase II biotransformation reactions are essential for detoxifying and eliminating xenobiotics, including many pharmaceutical compounds. These reactions typically involve conjugation, the covalent attachment of polar endogenous groups such as glucuronic acid, sulfate, methyl, or acetyl moieties to functional groups introduced during Phase I metabolism. The resulting conjugates are more water-soluble, enabling efficient renal or biliary excretion.The major classes of Phase II enzymes include...
52
Drug Dosing in Renal Diseases: Dose Adjustments Based on Drug Clearance and Elimination Rate Constant
290
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...
290


