Pharmaceutical active derivative delivery systems

Details Pharmaceutical active derivative delivery systems Pharmaceutical active derivative delivery systems

A - Human Necessities

61

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167/159, 167/163

A61K 9/10 (2006.01) A61K 9/66 (2006.01) A61K 9/70 (2006.01) A61K 31/52 (2006.01) A61K 47/48 (2006.01) A61L 27/00 (2006.01)

Patent

CA 2020964

- 25 - PHARMACEUTICALLY ACTIVE DERIVATIVE DELIVERY SYSTEMS ABSTRACT OF THE DISCLOSURE A biocompatible, film-forming delivery system for the delivery of pharmaceutical or therapeutic actives to a desired topical site of a subject, the system including: an active derivatized compound, wherein the active derivatized compound is a reaction product of (1) a cyclic anhydride moiety-containing, biocompatible, film-forming polymer with (2) at least one active selected from the group con- sitting of pharmaceutical actives, therapeutic actives and a combina- tion thereof, wherein the at least one active has a moiety selected from the group consisting of (a) a hydroxyl moiety capable Or forming a half-ester reaction product with a cyclic anhydride moiety o the polymer, (b) an amine moiety capable of forming a half-amide reac- tion product with a cyclic anhydride moiety of the polymer, and (c) a combination thereof, and wherein the active derivatized compound forms an active derivatized compound film on the site and the active is released from the active derivatized compound while the delivery system is in contact with the site such that the polymer remains thereon as a polymer film and the at least one active is delivered to the site in an absorbable form. D-16249

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