Details for Patent: 8,815,801
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Summary for Patent: 8,815,801
Title: | Controlled release composition and method of producing the same |
Abstract: | A controlled release composition containing a physiologically active substance in high content, suppressing the initial excess release, and achieving a stable release speed over a long period of time is provided. A controlled release composition comprising (1) a physiologically active substance or salt thereof in an amount of about 14% (w/w) to about 24% (w/w) based on the total composition weight, (2) hydroxynaphthoic acid selected from the group consisting of 3-hydroxy-2-naphthoic acid and 1-hydroxy-2-naphthoic acid or salt thereof, and (3) a lactic acid polymer or salt thereof having a weight-average molecular weight of 15000 to 50000 in which the content of polymers having molecular weights of 5000 or less is about 5% by weight or less, wherein the molar ratio of said hydroxynaphthoic acid or salt thereof to said physiologically active substance or salt thereof is from 3:4 to 4:3. |
Inventor(s): | Yamamoto; Kazumichi (Kyoto, JP), Yamada; Akiko (Kyoto, JP), Hata; Yoshio (Hokkaido, JP) |
Assignee: | Takeda Pharmaceutical Company Limited (Osaka, JP) |
Application Number: | 13/548,463 |
Patent Claim Types: see list of patent claims | Composition; Compound; |
Drugs Protected by US Patent 8,815,801
Applicant | Tradename | Generic Name | Dosage | NDA | Approval Date | TE | Type | RLD | RS | Patent No. | Patent Expiration | Product | Substance | Delist Req. | Patented / Exclusive Use | Submissiondate |
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>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: 8,815,801
Foriegn Application Priority Data | ||
Foreign Country | Foreign Patent Number | Foreign Patent Date |
Japan | 2001-199484 | Jun 29, 2001 |
Japan | 2001-340993 | Nov 6, 2001 |
International Family Members for US Patent 8,815,801
Country | Patent Number | Estimated Expiration | Supplementary Protection Certificate | SPC Country | SPC Expiration |
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Argentina | 034641 | ⤷ Try a Trial | |||
Argentina | 098261 | ⤷ Try a Trial | |||
Austria | 326264 | ⤷ Try a Trial | |||
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Austria | 509668 | ⤷ Try a Trial | |||
Australia | 2002311631 | ⤷ Try a Trial | |||
Australia | 2006246508 | ⤷ Try a Trial | |||
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