Agenus Announces Updated Phase 1 Data and Progress on BOT/BAL Development in Metastatic MSS Colorectal Cancer

13 April 2024 | Saturday | News


Agenus Inc. (NASDAQ: AGEN), a leader in discovering and developing novel immunological agents to treat various cancers, announced updated results from its Phase 1 clinical trial of BOT/BAL combination therapy in patients with metastatic CRC that is not microsatellite instability-high (MSS) or deficient mismatch repair (dMMR).
Image Source : Public Domain

Image Source : Public Domain

 

These findings build upon the compelling clinical activity demonstrated by BOT/BAL across nine different cancer types in Agenus' broad clinical development program.

In the Phase 1 trial involving 77 patients with refractory MSS-CRC without active liver metastases, a 23% overall response rate (ORR) was observed after a median follow up of 13.6 months at the data cutoff of March 1, 2024. The median duration of response in 18 responders has not yet been reached. The estimated 12-month and 18-month overall survival (OS) rates were 71% and 62%, respectively. The median OS was 21.2 months.

"These results underscore the potential of BOT/BAL in metastatic CRC, the second leading cause of cancer mortality in the U.S.," said Steven O’Day, M.D., Chief Medical Officer at Agenus. "We continue to work expeditiously to bring this promising combination to patients in need."

The Phase 2 trial has completed enrollment, and the company plans to discuss the encouraging interim results with the U.S. Food and Drug Administration (FDA).

Pending planned meetings with the FDA, Agenus plans to submit a Biologics License Application (BLA) for BOT/BAL in refractory MSS CRC later this year and plans to present detailed Phase 2 efficacy results, including response durability and updated Phase 1 survival data, at a major medical conference in the second half of 2024. This growing body of clinical evidence underscores the significant potential of BOT/BAL to transform the treatment landscape for difficult-to-treat solid tumors.

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