System for manufacturing controlled release dosage forms,...

A - Human Necessities – 61 – K

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

A61K 9/20 (2006.01) A61J 3/10 (2006.01) A61K 9/24 (2006.01) A61K 9/28 (2006.01)

Patent

CA 2464653

The present invention includes controlled release dosage forms and methods of designing and manufacturing dosage forms to obtain specific release profiles, for example, zero-order release profiles, escalating release profiles or decreasing release profiles. The dosage forms of the present invention can include spatial variation of API concentration in the dosage form and can include nested regions. Dosage forms according to the present invention may be manufactured by any appropriate method for obtaining the internal structure as disclosed herein for producing zero-order release profiles and increasing or decreasing release profiles. The invention further includes methods of manufacturing such dosage forms, such as by three-dimensional printing, possibly also including compression of the dosage form after three-dimensional printing. The invention further includes methods of designing such dosage forms. Release profiles from non-uniform distributions of API concentration may be predicted based on simple experiments with uniform-concentration dosage forms.

L'invention concerne des formes pharmaceutiques à libération contrôlée, et des procédés de conception et d'élaboration correspondants qui visent à établir des profils de libération spécifiques (par exemple, profils de libération d'ordre zéro, profils de libération croissante, ou profils de libération décroissante). Les formes pharmaceutiques considérées peuvent comporter une variation spatiale de concentration du principe actif, et des zones encastrées. Elles peuvent être élaborées selon tout procédé approprié visant à donner la structure interne décrite, pour l'établissement des profils de libération susmentionnés (profils de libération d'ordre zéro, profils de libération croissante, ou profils de libération décroissante). L'invention concerne également des procédés d'élaboration correspondants, par exemple en mode d'impression tridimensionnelle (éventuellement avec compression de la forme pharmaceutique après son élaboration en impression tridimensionnelle). L'invention concerne aussi des procédés de conception correspondants. Enfin, on peut prévoir les profils de libération qui correspondent à des distributions non uniformes de concentration du principe actif à partir d'expériences simples réalisées avec des formes pharmaceutiques à concentration uniforme.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

System for manufacturing controlled release dosage forms,... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System for manufacturing controlled release dosage forms,..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for manufacturing controlled release dosage forms,... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1458345

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.