Antibodies against CD24

Anti-CD24 antibodies with O-glycosylation-dependent binding to TF antigen on cancer cells address the issue of non-specific binding, improving safety in cancer therapy by targeting tumor-specific CD24 and reducing normal tissue interaction.

WO2026130747A1 Publication Date: 2026-06-25PENTIXAPHARM AG
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Patent Information

Application Number
PCT/EP2025/057633
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-12-19
Filing Date
2025-03-20
Publication Date
2026-06-25

AI Technical Summary

Technical Problem

Existing anti-CD24 antibodies lack the ability to distinguish between CD24 on cancer cells and normal tissue, leading to potential adverse effects due to non-specific binding.

Method used

Development of anti-CD24 antibodies that specifically bind to tumor-associated CD24 in an O-glycosylation-dependent manner, targeting the Thomsen-Friedenreich antigen (TF; Gaipi-3GalNAca1-) present on cancer cells, while avoiding sialylated Thomsen-Friedenreich antigen (sTF) on normal cells.

Benefits of technology

The antibodies exhibit enhanced tumor specificity, reducing adverse effects by preferentially binding to CD24 on cancer cells and minimizing interaction with normal tissues, thus enhancing safety in cancer immunotherapy.

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Abstract

The present invention pertains to anti-CD24 antibodies which bind CD24 in an O-glycosylation-dependent manner. Thereby, the antibodies are specific for tumor-associated CD24. The invention further provides pharmaceutical compositions containing said anti-CD24 antibodies and their use in cancer treatment.
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