Botensilimab/Balstilimab Data in MSS CRC Selected for the American Society of Clinical Oncology 2024 Annual Meeting

On April 24, 2024 Agenus Inc. ("Agenus") (Nasdaq: AGEN), a leader in developing novel immunological agents to treat various cancers, reported an upcoming presentation from the Phase 1b trial of botensilimab in combination with balstilimab ("BOT/BAL") in patients with relapsed/refractory microsatellite stable colorectal cancer with no active liver metastases (r/r MSS CRC NLM) will be presented at the upcoming American Society of Clinical Oncology (ASCO) (Free ASCO Whitepaper) Meeting, to be held May 31 – June 4, 2024, in Chicago, IL (Press release, Agenus, APR 24, 2024, View Source [SID1234642322]). The poster presentation is for a sub-analysis of the r/r MSS CRC cohort of the Phase 1b study. This sub-analysis was done to determine whether treatment outcomes are correlated with specific sites of metastatic disease in patients with non-active liver mets.

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Presentation Details:

Abstract Title: Botensilimab plus balstilimab in microsatellite stable metastatic colorectal cancer: Assessing efficacy in non-liver metastatic sites.

Abstract Number: 3556

Presenting Author: Marwan Fakih, MD, Division Head, GI Medical Oncology, City of Hope Comprehensive Cancer Center

Session: Poster Session – Gastrointestinal Cancer – Colorectal and Anal

Session Date and Time: June 1, 2024, at 1:30 p.m. – 4:30 p.m. CT

Complete abstracts will be released Thursday, May 23, 2024, at 5:00 p.m. ET. Data presented at the conference will be available to view in the publications section of the Agenus website (View Source) following the ASCO (Free ASCO Whitepaper) Meeting.

About Botensilimab

Botensilimab is an investigational multifunctional anti-CTLA-4 immune activator (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.

Approximately 900 patients have been treated with botensilimab in phase 1 and phase 2 clinical trials. Botensilimab alone, or in combination with Agenus’ investigational PD-1 antibody, balstilimab, has shown clinical responses across nine metastatic, late-line cancers. For more information about botensilimab trials, visit www.clinicaltrials.gov with the identifiers NCT03860272, NCT05608044, NCT05630183, and NCT05529316.