EP Patent

EP2701687A1 — Risperidone sustained release microsphere composition

Assigned to Shandong Luye Pharmaceutical Co Ltd · Expires 2014-03-05 · 12y expired

What this patent protects

A risperidone sustained release microsphere formulation is provided. The microsphere formulation comprise risperidone or 9-hydroxy risperidone or salts thereof, and a polymer blend having a first uncapped lactide-glycolide copolymer and a second uncapped lactide-glycolide copolym…

USPTO Abstract

A risperidone sustained release microsphere formulation is provided. The microsphere formulation comprise risperidone or 9-hydroxy risperidone or salts thereof, and a polymer blend having a first uncapped lactide-glycolide copolymer and a second uncapped lactide-glycolide copolymer, in which the first uncapped lactide-glycolide copolymer is a copolymer with a high intrinsic viscosity and the second uncapped lactide-glycolide copolymer is a copolymer with a low intrinsic viscosity. The sustained release microsphere formulation according to an embodiment of the present disclosure is suitable for large-scale industrialized production with improved stability, tthe in vivo release behavior of which will not change after long-term storage.

Drugs covered by this patent

Patent Metadata

Patent number
EP2701687A1
Jurisdiction
EP
Classification
—
Expires
2014-03-05
Drug substance claim
No
Drug product claim
No
Assignee
Shandong Luye Pharmaceutical Co Ltd
Source
FDA Orange Book + USPTO grounding via Google Patents

Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.

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