COMPOSITION OF BIODEGRADABLE MICROSPHERES SUITABLE FOR CONTROLLED RELEASE OF GLYCOSE LEVEL-CONTROLLING PEPTIDE AND ITS COMPOSITION Russian patent published in 2011 - IPC A61K9/52 A61K38/26 A61K31/765 A61P3/10 

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention relates to pharmacology and deals with method of obtaining microspheres from biodegradable polymer, including: addition of organic solvent to polymer, obtaining polymer solution (stage 1); dispersion of glucose level-regulating peptide in stage 1 polymer solution, obtaining medication dispersion and mixing alcohol or mixture of alcohol and organic acid with medication dispersion, obtaining solution with dispersed in it medication (stage 2); and obtaining microsphere from solution with dispersed in it stage 2 medication (stage 3), where glucose level-regulating peptide represents exedin-4 and where biodegradable polymer is selected from group, consisting of poly-L-lactic acid, D-lactic acid and glycolic acid copolymer, L-lactic acid and glycolic acid copolymer and D,L-lactic acid and glycolic acid copolymer.

EFFECT: invention ensures obtaining microsheres which demonstrate neither initial burst effect nor incomplete release, ensure release of medications of zero order and high efficiency of incapsulation and high stability.

13 cl, 15 ex, 7 tbl, 5 dwg