Cancer Research Technology Limited

Tusk Therapeutics Ltd.

Sergio Quezada

Anne Goubier

Beatriz Goyenechea Corzo

Josephine Salimu

Kevin Moulder

Pascal Merchiers

Bianka Prinz

Mark Brown

James Geoghegan

Karl Peggs

Nicholas McGranahan

Rachel Rosenthal

Charles Swanton

Frederick Arce Vargas

Isabelle Solomon

Joseph Mabbitt

Stephanie Hopley

The present disclosure provides antibody sequences found in antibodies that bind to human CD25. In particular, the present disclosure provides sequences of anti-human CD25 antibodies, which do not block the binding of CD25 to IL-2 or IL-2 signalling. Antibodies and antigen-binding portions thereof including such sequences can be used in 5 pharmaceutical compositions and methods of treatment, in particular for treating cancer.

Anti-CD25 antibody agents

The present disclosure relates to use of an anti-CD25 antibody, not inhibiting IL-2-CD25 interaction, with enhanced binding to activating Fc gamma Rs that lead to effective depletion of tumor-infiltrating Treg cells and improved control of established tumors. Combination with anti-programmed cell death protein-1 antibodies further improves tumor rejection.

Method of treating cancer or depleting regulatory T cells in a subject by administering a human IGG1 anti-CD25 antibody

The present disclosure provides antibody sequences found in antibodies that bind to human CD25, in particular an anti CD25-a-674 antibody which do not block the binding of CD25 to IL-2 or IL-2 signalling. The claimed antibody binds to the epitopes: YQCVQGYRALHRGP (150 to 163) or SVCKMTHGKTRWTQP (166 to 180) on CD25 Antibodies and antigen-binding portions thereof including such sequences can be used in pharmaceutical compositions and methods of treatment, in particular for treating cancer.

Anti-CD25 for tumour specific cell depletion

The present disclosure provides antibody sequences found in antibodies that bind to human CD25. In particular, the present disclosure provides sequences of anti-human CD25 antibodies, which do not block the binding of CD25 to IL-2 or IL-2 signalling. Antibodies and antigen-binding portions thereof including such sequences can be used in pharmaceutical compositions and methods of treatment, in particular for treating cancer.

The present disclosure provides antibody sequences found in antibodies that bind to human CD25, in particular an anti CD25-a-672 antibody which do not block the binding of CD25 to IL-2 or IL-2 signalling. The claimed antibody binds to the epitopes: PHATFKAMA YKEGTM (42-56) and YQCVQGYRALH (150-160) on CD25. Antibodies and antigen-binding portions thereof including such sequences can be used in pharmaceutical compositions and methods of treatment, in particular for treating cancer.

The present disclosure provides antibody sequences found in antibodies that bind to human CD25. In particular, the present disclosure provides sequences of anti-human CD25 antibodies, which do not block the binding of CD25 to IL-2 or IL-2 signalling. Antibodies and antigen-binding portions thereof including such sequences can be used in pharmaceutical composition and methods of treatment, in particular for treating cancer.

The present disclosure provides antibody sequences found in antibodies that bind to human CD25, in particular an anti CD25-a-634 antibody which do not block the binding of CD25 to IL-2 or IL-2 signalling. Antibodies and antigen-binding portions thereof including such sequences can be used in pharmaceutical compositions and methods of treatment, in particular for treating cancer.

The present disclosure provides antibody sequences found in antibodies that bind to human CD25, in particular an anti CD25-a-674 antibody which do not block the binding of CD25 to IL-2 or IL-2 signalling. The claimed antibody binds to the epitopes: QCVQGYRA and RWTQPQLICTG on CD25 Antibodies and antigen-binding portions thereof including such sequences can be used in pharmaceutical compositions and methods of treatment, in particular for treating cancer.

The present invention relates to methods for identifying a subject with cancer who is suitable for treatment with an immune checkpoint intervention, and to methods of treatment of such subjects. The invention further relates to a method for predicting or determining the prognosis of a subject with cancer.

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London, United Kingdom

Sergio Quezada