Controlled release delivery of peptide or protein

A - Human Necessities – 61 – K

Patent

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Details

A61K 9/16 (2006.01) A61K 9/00 (2006.01) A61K 38/00 (2006.01) A61K 38/17 (2006.01) A61K 38/18 (2006.01) A61K 9/20 (2006.01)

Patent

CA 2317411

Compositions and devices for the controlled release delivery of a peptide or protein drug are produced by dispersing a glassy matrix phase comprising the peptide or protein drug and a thermoprotectant in a bioerodable, biocompatible polymer at a temperature that is below the glass transition temperature of the glassy matrix phase and above the melting point of the polymer. The method and composition of the invention may be employed for the local delivery of angiogenic amounts of basic fibroblast growth factor or vascular endothelial growth factor.

La présente invention concerne des compositions et des dispositifs d'apport à libération lente d'un médicament à base de peptide ou de protéine, obtenus par la dispersion d'une phase matricielle vitreuse, contenant le médicament peptidique ou protéique, et d'un thermoprotecteur dans un polymère biodégradable et biocompatible, à une température inférieure à la température de transition vitreuse de la phase matricielle vitreuse et supérieure au point de fusion du polymère. On peut utiliser la technique et la composition de la présente invention pour l'apport local de quantités angiogènes de facteur de croissance fibroblastique de base ou de facteur de croissance vasculaire endothélial.

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