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Last Updated: November 22, 2019

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Details for Patent: 5,656,297

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Summary for Patent: 5,656,297
Title: Modulated release from biocompatible polymers
Abstract:The present invention relates to a composition for the modulated release of a biologically active agent. The composition comprises a biocompatible polymeric matrix, a biologically active agent which is dispersed within the polymeric matrix, and a metal cation component which is separately dispersed within the polymeric matrix, whereby the metal cation component modulates the release of the biologically active agent from the polymeric matrix. The present invention also relates to a method for modulating the release of a biologically active agent from a biocompatible polymeric matrix, comprising the steps of dissolving a biocompatible polymer in a solvent to form a polymer solution and also separately dispersing a metal cation component and a biologically active agent within the polymer solution. The polymer solution is then solidified to form a polymeric matrix, wherein at least a significant portion of the metal cation component is dispersed in the polymeric matrix separately from the biologically active protein, and whereby the metal cation component modulates the release of the biologically active agent from the polymeric matrix.
Inventor(s): Bernstein; Howard (Cambridge, MA), Zhang; Yan (Cambridge, MA), Khan; M. Amin (Downingtown, PA), Tracy; Mark A. (Arlington, MA)
Assignee: Alkermes Controlled Therapeutics, Incorporated (Cambridge, MA)
Application Number:08/237,057
Patent Claim Types:
see list of patent claims
Composition; Use; Formulation;

Drugs Protected by US Patent 5,656,297

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

International Family Members for US Patent 5,656,297

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria 154240   Start Trial
Austria 257696   Start Trial
Australia 2467495   Start Trial
Australia 3807693   Start Trial
Australia 668384   Start Trial
Australia 688506   Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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