Methods and compositions for treating post-operative pain...

A - Human Necessities – 61 – K

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Details

A61K 9/00 (2006.01) A61K 9/20 (2006.01) A61K 31/4162 (2006.01) A61K 47/34 (2006.01)

Patent

CA 2700389

The present invention is directed to an implantable drug depot useful for reducing, preventing or treating post-operative pain in a patient in need of such treatment, the implantable drug depot comprising a therapeutically effective amount of clonidine or pharmaceutically acceptable salt thereof and a polymer; wherein the depot is implantable at a site beneath the skin to reduce, prevent or treat post-opera-tive pain, and the depot is capable of releasing (i) about 5% to about 45% of the clonidine or pharmaceutically acceptable salt thereof relative to a total amount of the clonidine or pharmaceutically acceptable salt thereof loaded in the drug depot over a first period of tip to 48 hours and (ii) about 55% to about 95% of the clonidine or pharmaceutically acceptable salt thereof relative to a total amount of the clonidine or pharmaceutically acceptable salt thereof loaded in the drug depot over a subsequent period of at least 3 days.

La présente invention concerne un réservoir implantable de médicament permettant de réduire, prévenir ou traiter la douleur postopératoire chez un patient nécessitant un tel traitement, ledit réservoir implantable de médicament incluant une quantité thérapeutiquement efficace de clonidine ou dun sel pharmaceutiquement acceptable de celle-ci ainsi quun polymère; ledit réservoir pouvant être implanté au niveau dun site situé sous la peau pour réduire, prévenir ou traiter la douleur postopératoire, et ledit réservoir étant capable de libérer (i) denviron 5 % à environ 45 % de clonidine ou dun sel pharmaceutiquement acceptable de celle-ci par rapport à une quantité totale de ladite clonidine ou dudit sel pharmaceutiquement acceptable de celle-ci contenus dans ledit réservoir de médicament, au cours dune première période pouvant durer jusquà 48 heures et (ii) denviron 55 % à environ 95 % de clonidine ou dun sel pharmaceutiquement acceptable de ladite relativement à une quantité totale de ladite clonidine ou dudit sel pharmaceutiquement acceptable de ladite contenus dans ledit réservoir de médicament, au cours dune période subséquente de 3 jours au moins.

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