Details for Patent: 5,480,656

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Summary for Patent: 5,480,656

Scope and claims summary:

Title:	Prolonged release microcapsules
Abstract:	This invention provides a microcapsule designed for zero order release of a physiologically active polypeptide over a period of at least two months, which is produced by preparing a water-in-oil emulsion comprising an inner aqueous layer containing about 20 to 70% (w/w) of said polypeptide and an oil layer containing a copolymer or homopolymer having a weight-average molecular weight of 7,000 to 30,000, wherein the composition ratio of lactic acid/glycolic acid in the copolymer or homopolymer is 80/10 to 100/0, and then subjecting said water-in oil emulsion to microencapsulation.
Inventor(s):	Okada; Hiroaki (Suita, JP), Inoue; Yayoi (Kyoto, JP), Ogawa; Yasuaki (Otokuni, JP)
Assignee:	Takeda Chemical Industries, Ltd. (Osaka, JP)
Application Number:	08/188,918
Patent Claim Types: see list of patent claims	Compound; Dosage form;

Drugs Protected by US Patent 5,480,656

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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
>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: 5,480,656

Foriegn Application Priority Data
Foreign Country	Foreign Patent Number	Foreign Patent Date
Japan	2-033133	Feb 13, 1990

International Family Members for US Patent 5,480,656

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Australia	645108	⤷ Subscribe
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Brazil	9103553	⤷ Subscribe
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