Lipase Is Essential for the Study of <i>in Vitro</i> Release Kinetics from Organogels Marie-Hélène Dufresne Elaheh Marouf Yvonne Kränzlin Marc A. Gauthier Jean-Christophe Leroux 10.1021/mp3001099.s001 https://acs.figshare.com/articles/journal_contribution/Lipase_Is_Essential_for_the_Study_of_i_in_Vitro_i_Release_Kinetics_from_Organogels/2517499 <i>In vitro</i> drug release studies remain indispensable in the development of drug delivery systems, even if correlations between <i>in vitro</i> and <i>in vivo</i> results are often imperfect. In this work, an improved <i>in vitro</i> analysis method for studying <i>in situ</i>-forming lipid-based implants was developed. More specifically, lipase was found to be an essential additive for evidencing differences in drug release kinetics from organogels of different amino acid-based organogelators, organogelator concentrations, drug loadings, and volumes. Lipases are thought to participate in the degradation of and release from amino acid-based organogel implants <i>in vivo</i>. Our experimental conditions allowed for the rapid and reliable screening of <i>in vitro</i> parameters that may be optimized to slow or accelerate drug release, once preliminary <i>in vivo</i> data are available. 2016-02-20 20:30:22 drug release studies drug release kinetics drug loadings implant Lipase drug release vivo data drug delivery systems organogelator concentrations Vitro Release Kinetics analysis method vivo results