Caribou Biosciences

Caribou Biosciences specializes in gene editing to develop novel therapeutics for hematologic oncology indications using the Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) technology. It develops allogeneic off-the-shelf gene edited therapies based on Chimeric Antigen Receptors T (CAR-T) cells and CAR Natural Killer (CAR-NK) cells.

The company leverages its proprietary platform CRISPR hybrid RNA-DNA (chRDNA), which uses hybrid guides—both ribonucleic acid (RNA) and DNA nucleotides—to edit DNA. As of March 2024, Caribou had four candidates in its clinical pipeline, of which its lead candidate CB-010, a CAR-T therapy to treat relapsed/refractory B cell non-Hodgkin lymphoma, was in the Phase I clinical trial stage (March 2024). Its other CAR-T candidates, CB-011 for the treatment of relapsed/refractory Multiple Myeloma and CB-012, for the treatment of relapsed/refractory Acute Myeloid Leukemia, were also in Phase I of clinical trials. Its alternate application for CB-010 to treat autoimmune diseases was still in the discovery stage.

The company intended to extend ex vivo (gene editing done in a specialized laboratory and returned to the body) therapies toward other indications outside oncology and implement its Cas12a chRDNA platform in in vivo (gene editing done inside the body) applications.

Key customers and partnerships

The company entered into a partnership with big pharma company Abbvie in February 2021 for licensing and co-development of two CAR-T therapies. Caribou also entered into licensing agreements with Memorial Sloan Kettering Cancer Center (MSKCC) (November 2020), Corteva Agriscience, and Intellia Therapeutics. It also has a sales and assignment agreement with ProMab Biotechnologies Inc. (February 2020).

Funding and financials

Caribou Biosciences went public on the Nasdaq Global Select Market in July 2021 and raised USD 304 million. The IPO proceeds were earmarked to fuel the company’s clinical development. For 2021, it recorded revenue of USD 9.6 million earned through licensing and collaborations.

The company last raised funding in July 2023, when it raised USD 125 million in an upsized underwritten public offering. Caribou did not disclose what the funds would be used for.