多種における静脈内薬物動態パラメータのマルチフィデリティ深層学習フレームワークによる予測
Jiaojiao Fang1, Changda Gong1, Keyun Zhu1
1Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China.
Journal of chemical information and modeling
|January 6, 2026
まとめ
本研究では、種を超えた薬物動態特性の予測のための新しい転移学習フレームワークであるMFPKを紹介します。MFPKは、分布容積などの主要なパラメータを正確に予測し、創薬を支援します。
科学分野:
- 薬物動態学
- 創薬
- 機械学習
背景:
- 薬物動態(PK)特性の正確な予測は、効率的な候補薬スクリーニングと投与レジメンの最適化に不可欠です。
- 機械学習および深層学習モデルは、化学構造から直接PK特性を予測するためにますます使用されています。
研究 の 目的:
- 複数の種(ヒト、イヌ、サル、ラット、マウス)にわたる静脈内薬物動態パラメータを予測するための転移学習フレームワークであるマルチフィデリティ薬物動態学習(MFPK)を開発すること。
主な方法:
- MFPKは、グラフベース、モチーフベース、および3D構造ベースの分子表現を利用して、包括的な化学情報を捉えます。
- このフレームワークは、種を超えた予測精度を向上させるために転移学習を採用しています。
主要な成果:
- MFPKは、特に定常状態分布容積(VDss)の予測において、ベースラインモデルを大幅に上回るPKパラメータ予測精度を達成しました。
- テストされたすべての種において、VDss予測で低い誤差指標(RMSLE < 0.48、GMFE < 2.3)を達成しました。
- モデル予測を理解するための解釈可能性分析を実施しました。
結論:
- MFPKは、種を超えたPK特性を予測するための堅牢かつ正確な方法を提供し、創薬の初期段階をサポートします。
- このフレームワークの解釈可能性機能は、創薬における深層学習予測の解明に役立ちます。
関連する概念動画
Model Approaches for Pharmacokinetic Data: Distributed Parameter Models
238
Pharmacokinetic models are mathematical constructs that represent and predict the time course of drug concentrations in the body, providing meaningful pharmacokinetic parameters. These models are categorized into compartment, physiological, and distributed parameter models.
The distributed parameter models are specifically designed to account for variations and differences in some drug classes. This model is particularly useful for assessing regional concentrations of anticancer or...
The distributed parameter models are specifically designed to account for variations and differences in some drug classes. This model is particularly useful for assessing regional concentrations of anticancer or...
238
Analysis of Population Pharmacokinetic Data
671
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...
671
Model-Independent Approaches for Pharmacokinetic Data: Noncompartmental Analysis
314
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...
314
Model Approaches for Pharmacokinetic Data: Physiological Models
246
Physiological models in pharmacokinetics are instrumental in understanding the distribution and elimination of drugs within the body. These models describe the drug concentration within target organs, influenced by factors such as drug uptake, tissue volume, and blood flow. Drug uptake is governed by the partition coefficient, which signifies the drug concentration ratio in tissue to that in the blood. The blood flow rate to a specific tissue is expressed as Qt, and the rate of change in tissue...
246
Pharmacokinetic Models: Comparison and Selection Criterion
328
Physiological and compartmental models are valuable tools used in studying biological systems. These models rely on differential equations to maintain mass balance within the system, ensuring an accurate representation of the dynamic processes at play.
Physiological models take a detailed approach by considering specific molecular processes. They can predict drug distribution, metabolism, and elimination changes, providing a comprehensive understanding of how drugs interact with the body.
Physiological models take a detailed approach by considering specific molecular processes. They can predict drug distribution, metabolism, and elimination changes, providing a comprehensive understanding of how drugs interact with the body.
328
Pharmacokinetic Models: Overview
1.8K
Pharmacokinetic models utilize mathematical analysis to achieve a detailed quantitative understanding of a drug's life cycle within the body. They are instrumental in simulating a drug's pharmacokinetic parameters, predicting drug concentrations over time, optimizing dosage regimens, linking concentrations with pharmacologic activity, and estimating potential toxicity.
There are three primary types of models: empirical, compartment, and physiological. Empirical models, with minimal...
There are three primary types of models: empirical, compartment, and physiological. Empirical models, with minimal...
1.8K


