Composition for sustained release of non-aggregated erythropoietin

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United States of America Patent

PATENT NO 5674534
SERIAL NO

08483318

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Abstract

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A composition, and methods of forming and using said composition, for the sustained release of non-aggregated, biologically active, erythropoietin (EPO). The sustained release composition of this invention comprises a polymeric matrix of a biocompatible polymer and particles of biologically active, aggregation-stabilized EPO, wherein said particles are dispersed within the biocompatible polymer. The method of the invention for producing a composition for the sustained release of biologically active EPO, includes dissolving a biocompatible polymer in a polymer solvent to form a polymer solution, dispersing particles of biologically active, aggregation-stabilized EPO in the polymer solution, and then solidifying the polymer to form a polymeric matrix containing a dispersion of said EPO particles. The method for using a composition of the invention is a method for providing a therapeutically effective blood level of biologically active, non-aggregated erythropoietin in a subject for a sustained period. In this method, a subject is administered an effective dose of the sustained release composition of the present invention.

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Patent Owner(s)

Patent OwnerAddress
ALKERMES CONTROLLED THERAPEUTICS INC64 SIDNEY STREET CAMBRIDGE MASSACHUSETTS 02139 UNITED STATES OF AMERICA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bernstein, Howard Cambridge, MA 141 6810
Brickner, Avram Brookline, MA 5 197
Burke, Paul A Medford, MA 20 965
Zale, Stephen E Hopkington, MA 82 4907

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