Kashikar, R., Senapati, S., Dudhipala, N., Basu, S.K., Mandal, N., & Majumdar, S. (2024). Ophthalmic Nanoemulsion Fingolimod Formulation for Topical Application. Preprints. https://doi.org/10.20944/preprints202401.1525.v1
Chicago/Turabian Style
Kashikar, R., Nawajes Mandal and Soumyajit Majumdar. 2024 "Ophthalmic Nanoemulsion Fingolimod Formulation for Topical Application" Preprints. https://doi.org/10.20944/preprints202401.1525.v1
Abstract
The active form of fingolimod (FTY720; FT) is a sphingosine-1-phosphate receptor agonist with potential ocular applications. The goal of the present study was to develop an FT-loaded nanoemulsion (NE; FT-NE) formulation for the efficient and prolonged delivery of FT to the posterior segment of the eye through the topical route. FT-NE formulations were prepared with homogenization followed by probe sonication method. The lead FT-NE formulation (0.15% and 0.3% w/v loading), comprising soybean oil as lipid and Tween® 80 and Poloxamer 188 as surfactants, was further evaluated for in vitro release, surface morphology, filtration sterilization, and stability at refrigerated temperature. The formulation, at both dose levels, showed desirable physicochemical characteristics, a nearly spherical shape with homogenous nanometric size distribution, and was stable for 180 days (last time point checked) at refrigerated temperature post-filtration through polyethersulfone (0.22 µm) membrane. In vitro release studies showed prolonged release, compared with the control FT solution (FT-S), over 24 h. The results from these studies demonstrate that the FT-NE formulation can serve as a viable platform for the ocular delivery of FT through the topical route.
Keywords
Fingolimod; nanoemulsion; ocular drug delivery; sterilization; stability; physicochemical characterization
Subject
Medicine and Pharmacology, Pharmacy
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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