Gómez Lázaro, LauraMartín Sabroso, CristinaAparicio Blanco, JuanTorres Suárez, Ana Isabel2024-12-052024-12-052024-01-12Gómez-Lázaro, L.; Martín-Sabroso, C.; Aparicio-Blanco, J.; Torres-Suárez, A.I. Assessment of In Vitro Release Testing Methods for Colloidal Drug Carriers: The Lack of Standardized Protocols. Pharmaceutics 2024, 16, 103. https://doi.org/10.3390/pharmaceutics160101031999-492310.3390/pharmaceutics16010103https://hdl.handle.net/20.500.14352/1121672023 Descuento MDPIAlthough colloidal carriers have been in the pipeline for nearly four decades, standardized methods for testing their drug-release properties remain to be established in pharmacopeias. The in vitro assessment of drug release from these colloidal carriers is one of the most important parameters in the development and quality control of drug-loaded nano- and microcarriers. This lack of standardized protocols occurs due to the difficulties encountered in separating the released drug from the encapsulated one. This review aims to compare the most frequent types of release testing methods (i.e., membrane diffusion techniques, sample and separate methods and in situ detection techniques) in terms of the advantages and disadvantages of each one and of the key parameters that influence drug release in each case.engAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/journal articlehttps://doi.org/10.3390/pharmaceutics16010103open accessDrug releaseLiposomesMicroparticlesNanoparticlesSample and separate techniquesDialysis-based methodsIn situ detection methodsFarmacia24 Ciencias de la Vida