Sanofi SA is paying about $1 billion up front and pledging as much as $225 million in development milestone payments to acquire Amunix Pharmaceuticals Inc. in an arrangement that brings aboard several immuno-oncology platforms. South San Francisco-based Amunix’s lead candidate is the clinic-bound, masked T-cell engager (TCE) AMX-818, which targets HER2-expressing solid tumors. The candidate emerged from the company’s XPAT technology, designed with the longstanding XTEN and centered on a protein polymer in a strategy similar to pegylation, except with a polypeptide. XPAT stands for XTENylated, protease-activated TCEs.
Amunix Pharmaceuticals Inc. CEO Angie You told BioWorld that her firm has already done most of the optimization with its unique T-cell engager platform, so that the effort now is mostly “about cranking out more INDs.”
California's Amunix Pharmaceuticals Inc. said Roche Holding AG has agreed to license its therapeutic half-life extension technology, XTEN, for an effort to discover and develop new non-oncology therapies. The deal, which includes $40 million up front, plus up to $1.5 billion in development and sales milestones, builds on a previous technology evaluation agreement the companies first inked in 2013.
