Factor IX polypeptide preparations

A pharmaceutical composition with a factor IX polypeptide fused to an FcRn binding partner, combined with specific additives, addresses the short half-life issue in hemophilia B treatment, enabling less frequent dosing and improved bleeding management.

JP7741145B2Active Publication Date: 2025-09-17BIOVERATIV THERAPEUTICS INC
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Patent Information

Application Number
JP2023147524
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2013-03-15
Filing Date
2023-09-12
Publication Date
2025-09-17
Estimated Expiration
2034-03-14

AI Technical Summary

Technical Problem

Current treatments for hemophilia B, caused by factor IX deficiency, suffer from short half-life and require frequent administration, leading to suboptimal patient compliance and effectiveness.

Method used

A pharmaceutical composition comprising a factor IX polypeptide fused to an FcRn binding partner (rFIXFBP) combined with sucrose, mannitol, sodium chloride, L-histidine, and polysorbate, designed to provide long-acting factor IX activity, is administered intravenously at specific doses for prophylaxis and treatment of bleeding episodes.

Benefits of technology

The composition extends the half-life of factor IX, allowing for less frequent administration and improved management of bleeding episodes in hemophilia B patients, enhancing treatment efficacy and patient quality of life.

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Abstract

To provide factor IX polypeptide formulations.SOLUTION: The present invention provides formulations comprising a Factor IX-FcRn Binding Partner (FIXFBP) polypeptide, and methods of administering FIXFBP.SELECTED DRAWING: None
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