Cyclodextrin complexation as a fruitful strategy for improving the performance of nebivolol delivery from solid lipid nanoparticles.

Autor: Mura P; Department of Chemistry, School of Sciences of Human Health, University of Florence, via Schiff 6, Sesto Fiorentino, 50019 Florence, Italy., Maestrelli F; Department of Chemistry, School of Sciences of Human Health, University of Florence, via Schiff 6, Sesto Fiorentino, 50019 Florence, Italy. Electronic address: francesca.maestrelli@unifi.it., Gonçalves LMD; Research Institute for Medicines and Pharmaceutical Sciences (iMed.UL), Faculty of Pharmacy, University of Lisbon, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal., Cirri M; Department of Chemistry, School of Sciences of Human Health, University of Florence, via Schiff 6, Sesto Fiorentino, 50019 Florence, Italy., Mennini N; Department of Chemistry, School of Sciences of Human Health, University of Florence, via Schiff 6, Sesto Fiorentino, 50019 Florence, Italy., Almeida AJ; Research Institute for Medicines and Pharmaceutical Sciences (iMed.UL), Faculty of Pharmacy, University of Lisbon, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
Jazyk: angličtina
Zdroj: International journal of pharmaceutics [Int J Pharm] 2025 Jan 05; Vol. 668, pp. 124972. Date of Electronic Publication: 2024 Nov 19.
DOI: 10.1016/j.ijpharm.2024.124972
Abstrakt: Oral bioavailability of nebivolol (NEB), a highly-selective β1-adrenergic receptor antagonist specially used in hypertension treatment, is limited by its low aqueous solubility. In this work we investigated the possibility of developing a new effective oral formulation of NEB by exploiting a combined strategy based on NEB complexation with hydroxypropyl-βCyclodextrin (HPβCD) and complex incorporation into solid lipid nanoparticles (SLNs). Solubility studies enabled to choose Imwitor 491 and 988 as solid lipids for SLN preparation. The effect of their separated or combined use, at different amounts, and of different surfactants on nanoparticles dimensions, homogeneity and surface charge was examined. The best formulations were selected for drug loading, as such or as complex with HPβCD, and evaluated for physicochemical properties, morphology, entrapment efficiency and drug release. A comparison of the two kinds of formulations revealed that the presence of HPβCD improved SLNs quality in terms of reduced dimensions, higher homogeneity and greater physicochemical stability, avoiding the sharp Zeta Potential reduction observed when loading the plain drug; moreover, it allowed a marked increase in entrapment efficiency and better control of drug release. Furthermore, the use of HPβCD gave the opportunity of doubling drug loading without noticeable variations in SLNs physicochemical properties and maintaining excellent entrapment efficiency.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 The Author(s). Published by Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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