皮膚吸収の生理学的な薬動学モデルを開発するためにインビトロで測定されたデータの使用の影響:IVIVEケース研究
Yanling Zhang1, James F Clarke2, Yuri Dancik2
1Certara Predictive Technologies, Certara, Sheffield, UK. yanling.zhang@certara.com.
The AAPS journal
|September 2, 2025
まとめ
この研究では,内視浸透検査 (IVPT) の解釈と内視から内視への抽出を改善するために,皮膚の生理学に基づくカフェインの薬理学モデル (PBPK) が開発されました. 検証されたPBPKモデルは,皮膚用医薬品の皮膚濃度予測と生物同等性パラメータの定義に役立ちます.
科学分野:
- 薬理学と薬物投与
- 薬理学の計算モデル化
- 皮膚浸透科学
背景:
- インビトロ浸透試験 (IVPT) は,皮膚経由での薬剤投与の評価において,変動性と統計力に関する課題に直面しています.
- 皮膚生理学に基づく薬理学モデル (PBPK) は,IVPTデータを解釈するためのメカニズム的アプローチを提供し,in vitroからin vivoへの抽出を可能にします.
- 正確なモデリングは皮膚における薬物行動を理解し,製品開発を最適化するために不可欠です.
研究 の 目的:
- カフェインのボトムアップ皮質PBPKモデルを開発し,検証する.
- PBPKモデルの予測信頼性を強化するために,配方特異性と分析方法の制約を組み込む.
- PBPKモデルを使用して,in vitroからin vivoへのエクストラポレーションを行い,皮膚製剤の仮想生物同等性を探求する.
主な方法:
- カフェインのボトムアップ皮質PBPKモデルは,最小限のパラメータ最適化で構築されました.
- このモデルは,配列の性質を統合し,皮膚分割係数を測定し,拡散係数を予測した.
- モデルの検証は,文献のIVPTデータに基づいて行われ,その後,強化剤を伴うオンス,エムルション,ゲルのシミュレーションが行われました.
主要な成果:
- 開発された皮質PBPKモデルは,以前の繰り返しと比較して予測の信頼性が向上したことを示した.
- このモデルは,水溶液,油膏,乳液など,様々な製剤からカフェインの浸透を成功的にシミュレートしました.
- 浸透強化剤であるプロピレングリコールを含むゲルの皮膚濃度に関する予測が行われました.
結論:
- 検証された皮質PBPKモデルは,IVPTデータを解釈し,in vitroからin vivoに推定するための強力なツールを提供します.
- このモデルは,皮膚製品開発のための仮想生物同等性の探求と"安全な空間"の定義をサポートします.
- この機械的モデリングアプローチは,規制当局への提出や皮膚用医薬品の設計の最適化に貴重な洞察を提供します.
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