Anti-Vβ17 / anti-CD123 bispecific antibodies

Optimized anti-Vβ17/anti-CD123 bispecific antibodies address low activity issues by improving cytotoxicity, achieving up to 77% target cell killing at optimal ratios and concentrations.

AU2020235475B2Pending Publication Date: 2026-07-16JANSSEN BIOTECH INC
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Patent Information

Application Number
AU2020235475
Authority / Receiving Office
AU · AU
Patent Type
Applications
Current Assignee / Owner
Priority Date
2019-03-11
Filing Date
2020-03-11
Publication Date
2026-07-16
Estimated Expiration
2040-03-11

AI Technical Summary

Technical Problem

Existing bispecific antibodies targeting Vβ17 and CD123 exhibit low activity and undetectable cytotoxicity against target cells, limiting their effectiveness in therapeutic applications.

Method used

Development of anti-Vβ17/anti-CD123 bispecific antibodies with optimized epitope targeting and enhanced cytotoxicity through specific antibody ratios and concentrations.

Benefits of technology

The optimized bispecific antibodies demonstrate significant cytotoxicity against target cells, achieving up to 77% cytotoxicity at optimal ratios and concentrations, enhancing their therapeutic potential.

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Abstract

The present disclosure relates to Vβ17 / CD123 bispecific antibodies. The antibodies are characterized by their CDRs sequences. Toxicity experiments are performed on Kasumi-3 cells (used to perform acute myeloblastic leukaemia pathologies)
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Citation Information

Patent Citations

  • DNA encoding conserved T-cell receptor sequences

    US6084087A