Details for Patent: 7,429,559
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Summary for Patent: 7,429,559
| 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): | Kazumichi Yamamoto, Akiko Yamada, Yoshio Hata |
| Assignee: | Takeda Pharmaceutical Co Ltd |
| Application Number: | US10/182,731 |
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Patent Claim Types: see list of patent claims | Composition; |
| Patent landscape, scope, and claims: |
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Drugs Protected by US Patent 7,429,559
| 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: 7,429,559
| Foriegn Application Priority Data | ||
| Foreign Country | Foreign Patent Number | Foreign Patent Date |
| Japan | 2001-199484 | Jun 29, 2001 |
| Japan | 2001-340993 | Nov 06, 2001 |
| PCT Information | |||
| PCT Filed | June 28, 2002 | PCT Application Number: | PCT/JP02/06527 |
| PCT Publication Date: | January 09, 2003 | PCT Publication Number: | WO03/002092 |
International Family Members for US Patent 7,429,559
| Country | Patent Number | Estimated Expiration | Supplementary Protection Certificate | SPC Country | SPC Expiration |
|---|---|---|---|---|---|
| Argentina | 034641 | ⤷ Start Trial | |||
| Argentina | 098261 | ⤷ Start Trial | |||
| Austria | 326264 | ⤷ Start Trial | |||
| Austria | 387937 | ⤷ Start Trial | |||
| Austria | 509668 | ⤷ Start Trial | |||
| Australia | 2002311631 | ⤷ Start Trial | |||
| >Country | >Patent Number | >Estimated Expiration | >Supplementary Protection Certificate | >SPC Country | >SPC Expiration |
