Teneobio and Poseida Expand Their Partnership to Develop UniDabs for Advanced CAR-T Therapies

Teneobio and Poseida Therapeutics announced a new research collaboration and licensing agreement to develop novel CAR-T therapies using Teneobio’s heavy chain only domain antibodies (UniDabs). Poseida will apply UniDab binders, which demonstrate significant advantages over traditional single chain variable antibody fragment (scFv) binders, to the development of its next generation CAR-T therapies.

The new collaboration follows a commercial license agreement between the companies that was announced in May of 2017. Under the terms of the new agreement, Teneobio will generate multiple UniDab product candidates using its proprietary UniRat transgenic human antibody ‘heavy-chain only’ rodent platform and its state-of-the-art sequence-based discovery engine, TeneoSeek. Poseida will have exclusive global licensing rights for the clinical development and commercialization of specific UniDabs for CAR-T therapies.

Teneobio Inc. will receive an upfront payment and is eligible to receive future research, development and regulatory milestone payments per UniDab candidate, with total potential earnings of over $250 million for CAR-T therapies developed by Poseida. Teneobio would also receive royalties on worldwide net sales of each CAR-T therapy.

“We are delighted to partner with Poseida and to help create the next generation of cell therapies,” said Roland Buelow, CEO of Teneobio. “Domain antibodies have been clinically validated as excellent targeting moieties in CAR-T cells. They confer robust in vivo specificity and efficacy. They are smaller in size, have greater humanicity, and superior developability relative to standard scFv’s. The use of UniDabs as binders in CAR-T products is predicted to result in a lack of tonic signaling and lower immunogenicity, thus solving some of the problems of the first-generation, scFv-based CAR-T therapies.”

Eric Ostertag, CEO of Poseida, noted, “Teneobio’s UniDab binders are an ideal match for Poseida’s novel and industry-leading CAR-T platform technologies. Poseida has demonstrated that UniDabs can be engineered to serve as binding molecules for our CAR-T therapeutics and oftentimes may function better than other binders for use in CAR-T products.”

“We are pleased to expand our existing partnership with Poseida, whose cutting-edge genetic engineering tools combined with our targeting UniDab candidates will enable the development of the next generation of superior CAR-T therapies to treat cancer. We believe that UniDabs provide differentiated advantages from other targeting moieties, and that their utility and reach will extend beyond antibody therapeutics to novel transformational cell therapy treatments,” added Omid Vafa, CBO of Teneobio.