Controlled release gels

Details Controlled release gels Controlled release gels

A - Human Necessities

61

K

A61K 47/18 (2006.01)

Patent

CA 2634691

The invention relates to the field of gel-based delivery systems for a compound of interest, like a drug or cosmetic agent. Provided is a gel comprising at least one nonpolymeric gelator and at least one polymer, wherein the polymer content of said gel is more than 5 weight percent (wt%), preferably at least 10 wt%, more preferably at least 20 wt%. Also provided is a method for preparing the gel and the use of the gel in a controlled delivery system, for example a pH-sensitive drug delivery system.

La présente invention concerne le domaine des systèmes de délivrance à base de gels de composés présentant un intérêt, tels qu'un médicament ou un agent cosmétique. L'invention concerne un gel comprenant au moins un gélifiant non polymère et au moins un polymère, la teneur en polymère dudit gel étant supérieure à 5 pour cent en poids (% en pds), de préférence d'au moins 10 % en pds et de manière encore préférable d'au moins 20 % en pds. L'invention concerne également un procédé de préparation du gel et l'utilisation du gel dans un système de délivrance contrôlée, par exemple un système de délivrance de médicaments sensible au pH.

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