Particles for oral delivery of peptides and proteins

A - Human Necessities – 61 – K

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

A61K 9/14 (2006.01) A61K 9/16 (2006.01) A61K 9/48 (2006.01) G03F 7/00 (2006.01)

Patent

CA 2359474

Microfabricated, asymmetrical, reservoir-containing particles for use in the oral delivery of biopolymer therapeutic agents such as peptides, proteins and oligonucleotides are disclosed. The particles are encapsulated in enteric- coated capsules or tablets to provide passage through the stomach and release of a suspension of the particles in the intestinal lumen. The particles have a selected shape, and uniform dimensions preferably in the 100 µm to 1 mm range. The reservoirs open to the face of the particle and are filled with a therapeutic agent and selected excipients. The excipients are selected to delay the dissolution/release of the agent from the particle reservoirs for 5- 60 minutes after the particle is released in the intestinal lumen. Alternatively, the pore is plugged with an erodable material. The face of the particle is grafted with a layer of muco-adhesive ligands designed to quickly bind the particle to the intestinal mucosa for several minutes to several hours after release of the particles from the enteric-coated carrier.

L'invention porte sur des particules microfabriquées, asymétriques, contenant un réservoir, et servant à l'administration orale de biopolymères à usage thérapeutique tels que des peptides, des protéines et des oligonucléotides. Lesdites particules sont placées dans des capsules ou comprimés à enrobage entérique leur permettant de traverser l'estomac et de libérer une suspension de particules dans les intestins. Les particules ont une forme choisie, et des dimensions uniformes allant de préférence de 100 µm à 1 mm. Les réservoirs, ouverts sur une face de la particule, sont remplis de l'agent thérapeutique, et d'excipients sélectionnés pour retarder la dissolution et la libération de l'agent du réservoir de 5 à 60 minutes après la libération des particules dans les intestins. En variante le pore peut être fermé par un matériau érodable. La surface de la particule est greffée par une couche de liants adhérant à la muqueuse et fixant rapidement les particules à la muqueuse intestinale pendant quelques minutes à quelques heures après leur libération du support à enrobage entérique.

LandOfFree

Say what you really think

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

Rating

Particles for oral delivery of peptides and proteins does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Particles for oral delivery of peptides and proteins, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Particles for oral delivery of peptides and proteins will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-2083947

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