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Last Updated: April 26, 2024

Patent: 8,748,577


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Summary for Patent: 8,748,577
Title:Conjugates of biologically active polypeptides having an increased in vivo half-life
Abstract: Disclosed are biologically active protein conjugates that comprise a biologically active polypeptide coupled via a peptide bond to a polypeptide comprising from 2 to about 500 units of a repeating peptide motif, wherein the biologically active protein conjugate exhibits a modified plasma half-life compared to the intrinsic half-life of the unconjugated biologically active polypeptide or protein. Also disclosed are methods of making and using the conjugated proteins, as well as methods for determining whether a given conjugate exhibits a modified half life relative to the intrinsic half life of the unconjugated polypeptide.
Inventor(s): Besman; Marc (Seattle, WA), Chipman; Stewart (Bainbridge Island, WA), Leung; David (Mercer Island, WA), Singer; Jack (Seattle, WA)
Assignee: Cell Therapeutics, Inc. (Seattle, WA)
Application Number:13/363,278
Patent Claims:see list of patent claims

Details for Patent 8,748,577

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Genzyme Corporation CEREZYME imiglucerase For Injection 020367 05/23/1994 ⤷  Try a Trial 2025-01-25
Genzyme Corporation CEREZYME imiglucerase For Injection 020367 09/22/1999 ⤷  Try a Trial 2025-01-25
Recordati Rare Diseases, Inc. ELSPAR asparaginase For Injection 101063 01/10/1978 ⤷  Try a Trial 2025-01-25
Smith & Nephew, Inc. SANTYL collagenase Ointment 101995 06/04/1965 ⤷  Try a Trial 2025-01-25
Genentech, Inc. ACTIVASE alteplase For Injection 103172 11/13/1987 ⤷  Try a Trial 2025-01-25
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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