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Last Updated: November 15, 2024

Details for Patent: 6,884,433


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Summary for Patent: 6,884,433
Title: Sustained release formulation containing tacrolimus
Abstract:Sustained release formulation containing tacrolimus or its hydrate is provided. The time (T63.2%) required for 63.2% of the maximum amount of tacrolimus or its hydrate to be dissolved is 0.7 to 15 hours. The time is measured in accordance to the Japanes Pharmacopocia, the 13-th edition, Dissolution Test, No. 2 (Puddles method, 50 rpm) using an aqueous 0.005% hydroxypropyl cellulose solution. This aqueous test solution is adjusted to pH 4.5, accordingly. The formulation further comprises a solid base which is a water-soluble or water-insoluble polymer. The formulation is in the form of a powder, fine powder, granule, tablet or capsule. The formulation is administered to a patient once a day for preventing organ or tissue rejection by transplantation or autoimmune disease. In addition, a solid dispersion composition is provided. The solid dispersion comprises tacrolimus or its hydrate in a mixture containing water-soluble or water-insoluble polymer and an excipient.
Inventor(s): Yamashita; Kazunari (Kyoto, 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: Fujisawa Pharmaceutical Co., Ltd. (Osaka, JP)
Application Number:10/412,281
Patent Claim Types:
see list of patent claims
Composition; Formulation; Compound; Dosage form;

Drugs Protected by US Patent 6,884,433

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: 6,884,433

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Japan10-79039Mar 26, 1998
Japan10-182963Jun 29, 1998

International Family Members for US Patent 6,884,433

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina 023299 ⤷  Sign Up
Austria 269075 ⤷  Sign Up
Austria 464900 ⤷  Sign Up
Austria 514419 ⤷  Sign Up
Australia 2856399 ⤷  Sign Up
Australia 749623 ⤷  Sign Up
Brazil 9909201 ⤷  Sign Up
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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