Botensilimab/Balstilimab Clinical Activity in Refractory Sarcomas to be Presented in Oral Session at ESMO 2024

Agenus Inc. (“Agenus”) (Nasdaq: AGEN), a leader in developing novel immunological agents to treat various cancers, today announced that updated data from the clinical trial of botensilimab and balstilimab in refractory sarcomas will be featured in a mini oral presentation at the European Society for Medical Oncology (ESMO) Congress, taking place September 13-17, 2024, in Barcelona, Spain.

The presentation will feature updated efficacy and safety data from the large, ongoing Phase 1 trial, highlighting the potential of this combination therapy in treating patients with refractory sarcomas, including visceral angiosarcoma and leiomyosarcoma, populations with limited therapeutic options. Botensilimab, a novel investigational Fc-enhanced CTLA-4 inhibitor, and balstilimab, an investigational PD-1 antibody, have shown promising clinical responses in multiple tumor types, including "cold" tumors that are typically unresponsive to standard therapies.

Presentation Details:

Abstract Title: Updated efficacy and safety of botensilimab plus balstilimab in patients with refractory metastatic sarcoma from an expanded phase 1 study

Abstract Number: 1726MO

Presenting Author: Breelyn A. Wilky, MD, University of Colorado Cancer Center

Session: Mini Oral Session, Sarcoma

Session Date and Time: Friday, September 13^th, 2024, at 4:00 p.m. – 5:30 p.m. CEST (10:00 a.m. – 11:30 a.m. ET)

Complete abstracts are available through the ESMO Congress program. The presentation will also be available in the publications section of the Agenus website following the ESMO Congress on Friday, September 13th.

About Botensilimab

Botensilimab is an investigational human Fc enhanced CTLA-4 blocking antibody designed to boost both innate and adaptive anti-tumor immune responses. Its novel design leverages mechanisms of action to extend immunotherapy benefits to “cold” tumors which generally respond poorly to standard of care or are refractory to conventional PD-1/CTLA-4 therapies and investigational therapies. Botensilimab augments immune responses across a wide range of tumor types by priming and activating T cells, downregulating intratumoral regulatory T cells, activating myeloid cells and inducing long-term memory responses.