Invention Application
- Patent Title: METHODS OF REDUCING IMMUNOGENICITY AGAINST FACTOR VIII IN INDIVIDUALS UNDERGOING FACTOR VIII THERAPY
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Application No.: US17681435Application Date: 2022-02-25
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Publication No.: US20230002828A1Publication Date: 2023-01-05
- Inventor: Haiyan JIANG , Tongyao LIU , Sriram KRISHNAMOORTHY , Neil JOSEPHSON , Glenn PIERCE
- Applicant: Bioverativ Therapeutics Inc. , Puget Sound Blood Center
- Applicant Address: US MA Waltham; US WA Seattle
- Assignee: Bioverativ Therapeutics Inc.,Puget Sound Blood Center
- Current Assignee: Bioverativ Therapeutics Inc.,Puget Sound Blood Center
- Current Assignee Address: US MA Waltham; US WA Seattle
- Main IPC: C12Q1/6883
- IPC: C12Q1/6883 ; A61K38/21 ; A61K39/00 ; A61K38/37 ; C07K14/755 ; A61K47/68

Abstract:
The present disclosure provides methods of administering chimeric and hybrid Factor VIII (FVIII) polypeptides comprising FVIII and Fc to subjects at risk of developing inhibitory FVIII immune responses, including anti-FVIII antibodies and/or cell-mediated immunity. The administration is sufficient to promote coagulation and to induce immune tolerance to FVIII. The chimeric polypeptide can comprise full-length FVIII or a FVIII polypeptide containing a deletion, e.g., a full or partial deletion of the B domain.
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