Advancing Ophthalmic Delivery of Flurbiprofen via Synergistic Chiral Resolution and Ion-pairing Strategies

氟比洛芬 配对 分辨率(逻辑) 化学 药理学 医学 物理 计算机科学 超导电性 量子力学 人工智能
作者
Zhining Ma,Yuequan Wang,Huiyang He,Tong Liu,Qikun Jiang,Xiaohong Hou
出处
期刊:Asian Journal of Pharmaceutical Sciences [Elsevier BV]
卷期号:19 (3): 100928-100928 被引量:1
标识
DOI:10.1016/j.ajps.2024.100928
摘要

Flurbiprofen (FB), a nonsteroidal anti-inflammatory drug, is widely employed in treating ocular inflammation owing to its remarkable anti-inflammatory effects. However, the racemic nature of its commercially available formulation (Ocufen®) limits the full potential of its therapeutic activity, as the (S)-enantiomer is responsible for the desired anti-inflammatory effects. Additionally, the limited corneal permeability of FB significantly restricts its bioavailability. In this study, we successfully separated the chiral isomers of FB to obtain the highly active (S)-FB. Subsequently, utilizing ion-pairing technology, we coupled (S)-FB with various counter-ions, such as sodium, diethylamine, trimethamine (TMA), and L-arginine, to enhance its ocular bioavailability. A comprehensive evaluation encompassed balanced solubility, octanol-water partition coefficient, corneal permeability, ocular pharmacokinetics, tissue distribution, and in vivo ocular anti-inflammatory activity of each chiral isomer salt. Among the various formulations, S-FBTMA exhibited superior water solubility (about 1∼12 mg/ml), lipid solubility (1< lg Pow < 3) and corneal permeability. In comparison to Ocufen®, S-FBTMA demonstrated significantly higher in vivo anti-inflammatory activity and lower ocular irritability (such as conjunctival congestion and tingling). The findings from this research highlight the potential of chiral separation and ion-pair enhanced permeation techniques in providing pharmaceutical enterprises focused on drug development with a valuable avenue for improving therapeutic outcomes.
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