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Last Updated: August 11, 2020

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Details for Patent: 8,551,522

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Summary for Patent: 8,551,522
Title:Sustained-release formulation
Abstract: A sustained-release formulation is provided comprising a solid dispersion composition comprising a tricyclic compound or a pharmaceutically acceptable salt thereof in a mixture comprising a water-soluble polymer and a water-insoluble polymer, and an excipient.
Inventor(s): Yamashita; Kazunari (Kyota, JP), Hashimoto; Eiji (Wakayama, JP), Nomura; Yukihiro (Osaka, JP), Shimojo; Fumio (Hyogo, JP), Tamura; Shigeki (Osaka, JP), Hirose; Takeo (Kyoto, JP), Ueda; Satoshi (Hyogo, JP), Saitoh; Takashi (Osaka, JP), Ibuki; Rinta (Kyoto, JP), Ideno; Toshio (Osaka, JP)
Assignee: Astellas Pharma Inc. (Tokyo, JP)
Application Number:12/265,108
Patent Claim Types:
see list of patent claims
Composition; Formulation; Dosage form;

Drugs Protected by US Patent 8,551,522

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

Foreign Priority and PCT Information for Patent: 8,551,522

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Japan10-079039Mar 26, 1998
Japan10-182963Jun 29, 1998

International Family Members for US Patent 8,551,522

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina 023299   Start Trial
Austria 269075   Start Trial
Austria 464900   Start Trial
Austria 514419   Start Trial
Australia 2856399   Start Trial
Australia 749623   Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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