RT Journal Article T1 Optimization of Drug Permeation from 8% Ciclopirox Cyclodextrin/Poloxamer-Soluble Polypseudorotaxane-Based Nail Lacquers A1 Cutrín Gómez, Elena A1 Conde Penedo, Andrea A1 Anguiano Igea, Soledad A1 Gómez Amoza, José Luis A1 Otero Espinar, Francisco Javier K1 Transungual drug delivery K1 Nail K1 Medicated nail lacquers K1 Onychomycosis K1 Polypseudorotaxanes K1 Methyl-β-cyclodextrin K1 Poloxamers K1 Ciclopirox olamine K1 Ciclopirox base AB Cyclodextrin/poloxamer-soluble polypseudorotaxane-based nail lacquers have demonstrated significant capacity for promoting the permeation of drugs into the nail plate. Furthermore, previous studies have shown that the use of hydroalcoholic blends as vehicles promotes drug permeation. The work described herein studies the effect of the type of alcohol used in the lacquer preparation, and the composition of the vehicle is optimized to obtain soluble doses of 8% and to promote the diffusion of ciclopirox base and olamine across the nail. Permeation studies on different types of alcohols show that optimum results are achieved with short-chain alcohols, and that results become less satisfactory the higher the number of alcohol carbons. In addition, solubility and penetration studies on the bovine hoof have enabled the composition of the lacquer to be optimized for both forms of ciclopirox. The results suggest that optimized lacquers have better ciclopirox diffusion and penetration properties than the commercial reference lacquer. Lastly, in vivo studies in which optimized ciclopirox olamine lacquer was applied for 45 days to the nails of healthy volunteers showed that it caused no negative effects or changes to the nail surface. These results demonstrate the significant potential of cyclodextrin/poloxamer-soluble polypseudorotaxane-based nail lacquers for the ungual administration of drugs PB MDPI YR 2020 FD 2020 LK http://hdl.handle.net/10347/23780 UL http://hdl.handle.net/10347/23780 LA eng NO Cutrín-Gómez, E.; Conde-Penedo, A.; Anguiano-Igea, S.; Gómez-Amoza, J.L.; Otero-Espinar, F.J. Optimization of Drug Permeation from 8% Ciclopirox Cyclodextrin/Poloxamer-Soluble Polypseudorotaxane-Based Nail Lacquers. Pharmaceutics 2020, 12, 231 NO This research was funded by Xunta de Galicia grant number GRC2013/015 and GPC2017/015 DS Minerva RD 24 abr 2026