$1bn Amunix Buy Brings Sanofi Next-Generation TCE Platform

Masking Technology Could Address Safety Limitations Of Solid Tumor Candidates

The deal bolsters Sanofi’s immuno-oncology pipeline and marks its sixth acquisition this year.

Handshake of businessmen

Sanofi is to pay $1bn up front to acquire privately held biotech Amunix Pharmaceuticals, Inc., which is developing products designed to overcome safety issues that have hampered the development of T-cell engager therapeutics in solid tumors. Amunix could also receive up to $225m upon reaching certain development milestones. The deal rides the wave of several bolt-on acquisitions made by the French big pharma group in 2021.

Mountain View, CA-headquartered Amunix specializes in developing T-cell engagers (TCEs) and cytokine therapies for cancer, having decided to build its own pipeline after initially focusing on licensing out its technology to extend the half-life of and mask different types of therapeutic molecules until they reach their target. Sanofi and Swedish Orphan Biovitrum AB use the technology in their hemophilia A asset BIVV 001 that the former gained through its acquisition of Biogen, Inc

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