Combination therapy of a PARP inhibitor and a multifunctional molecule binding to tcr

Combining a TCRβV-binding agent with a PARP inhibitor enhances anti-tumor immune response by activating/co-inhibiting receptors, addressing the limitations of monotherapies and improving therapeutic outcomes.

WO2026112599A2PCT designated stage Publication Date: 2026-05-28MARENGO THERAPEUTICS INC
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
MARENGO THERAPEUTICS INC
Filing Date
2025-11-24
Publication Date
2026-05-28

AI Technical Summary

Technical Problem

Monotherapies using current cancer therapeutics, such as multifunctional molecules binding to TCR or PARP inhibitors, have limited therapeutic effects.

Method used

A combination therapy involving a first agent that binds to the TCR β variable (TCRβV) region and activates/co-inhibits a co-stimulatory/co-inhibitory receptor, and a second agent comprising a Poly-ADP ribose polymerase (PARP) inhibitor, to enhance anti-tumor immune response.

Benefits of technology

The combination therapy induces more activated and expanded T cells, reduces exhausted T cells, and increases cytotoxicity against tumor cells, resulting in improved therapeutic efficacy.

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Abstract

Provided herein are methods of treating conditions or diseases in a subject using a combination of a PARP inhibitor and a molecule comprising an antigen binding domain that binds to a T cell receptor beta variable region (TCRβV) and a molecule that activates a co-stimulatory receptor or a molecule that inhibits a co-inhibitory receptor. Kits for use in practicing the methods are also provided.
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