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Title:
SUSTAINED RELEASE DRUG DELIVERY SYSTEM CONTAINING CODRUG
Document Type and Number:
Japanese Patent JP2011052015
Kind Code:
A
Abstract:

To provide an improved drug delivery system which has a release speed sustained for a long time at a portion adjacent to an object portion in a body without requiring a complicated manufacturing process.

A sustained release compound contains a polymer matrix and a prodrug having formula A-L-B dispersed in the polymer (A represents a pharmacological active ingredient, L represents a linker to form the prodrug by being bound to A and B, the linker forms A shape showing a therapeutic effect by being cleaved under a physiological condition, and B is bound to A to represent an ingredient to form the prodrug having a lower solubility than the A shape showing the therapeutic effect). The compound has the solubility in water of the A shape showing the therapeutic effect which exceeds 1 mg/ml, and, on the other hand, has the solubility in water of the prodrug which is less than 1 mg/ml.


Inventors:
CHEN JIANBING
ASHTON PAUL
SMITH THOMAS J
Application Number:
JP2010270741A
Publication Date:
March 17, 2011
Filing Date:
December 03, 2010
Export Citation:
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Assignee:
PSIVIDA INC
International Classes:
A61K47/48; A61F2/84; A61K9/00; A61K9/10; A61K9/22; A61K9/52; A61K31/192; A61K31/196; A61K31/496; A61K31/513; A61K45/00; A61K47/30; A61K47/32; A61K47/34; A61L17/00; A61L29/00; A61L29/16; A61L31/00; A61L31/10; A61L31/16; A61P27/06; A61P29/00; A61P31/00; A61P31/04; A61P31/12; A61P33/10; A61P35/00; A61P37/00; A61P43/00; C08K5/00; C08L101/00; A61K9/70
Domestic Patent References:
JPH09509151A1997-09-16
JPH11500047A1999-01-06
Foreign References:
WO2001001957A12001-01-11
WO2000062830A22000-10-26
Other References:
JPN5003017248; INGRAMS, D.R. et al.: THE ANNALS OF OTOLOGY, RHINOLOGY, AND LARYNGOLOGY Vol. 109, No. 4, 200004, p. 422-424
Attorney, Agent or Firm:
Motohiro Kurauchi
Axis International Patent Business Corporation