Xencor, Inc.

Abzyme Therapeutics LLC

Fouad Moussa

John R Desjarlais

Gregory L Moore

Michael Hedvat

Juan Diaz

Adam Zwolak

Fei Shen

Matthew Adam Dragovich

Veronica Gusti Zeng

Joseph Erhardt

Theresa McDevitt

Pankaj Seth

Andrew F Phillips

Byung Dae Lee

Hiep Tran

Laura DeCristofano

Carla Campbell

Rajesh Singh

Provided herein are novel anti-CD28×anti-PSMA antibodies and methods of using such antibodies for the treatment of PSMA-associated cancers. Subject anti-CD28×anti-PSMA antibodies are capable of agonistically binding to CD28 costimulatory molecules on T cells and PSMA on tumor cells. Thus, such antibodies selectively enhance anti-tumor activity at tumor sites while minimizing peripheral toxicity. The subject antibodies provided herein are particularly useful in combination with other anti-cancer therapies (e.g., anti-CD3×anti-PSMA antibodies) for the treatment of prostate cancers.

Anti-CD28 x anti-PSMA antibodies

Provided herein are novel anti-CD28× anti-PSMA antibodies and methods of using such antibodies for the treatment of PSMA-associated cancers. Subject anti-CD28× anti-PSMA antibodies are capable of agonistically binding to CD28 costimulatory molecules on T cells and PSMA on tumor cells. Thus, such antibodies selectively enhance anti-tumor activity at tumor sites while minimizing peripheral toxicity. The subject antibodies provided herein are particularly useful in combination with other anti-cancer therapies (e.g., anti-CD3× anti-PSMA antibodies) for the treatment of prostate cancers.

The invention relates to new anti-hCD3 antibodies that, in contrast to prior art anti-CD3 antibodies, bind specifically to human CD3 at acidic pH, but do not significantly bind to human CD3 at neutral or physiological pH, methods to produce these antibodies and therapeutic uses of these antibodies. These antibodies are able to activate T cells at acidic pH while having significantly reduced activity at neutral or physiological pH.

Antibodies binding to human CD3 at acidic pH

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Allentown, PA, United States of America

Fouad Moussa