SAN FRANCISCO, Jan. 3, 2013 – Sutro Biopharma, a biopharmaceutical company developing a new generation of protein therapeutics utilizing Sutro’s cell-free protein synthesis technology, today announced a collaboration with Sanofi Pasteur — the largest company entirely dedicated to vaccines — to produce two undisclosed vaccine candidates.

“This collaboration highlights the potential value of Sutro’s biochemical synthesis technology for the production of vaccines and provides additional validation of the benefits of our technology platform,” said William Newell, chief executive officer of Sutro Biopharma. “We are looking forward to expanding our expertise in protein expression into the field of vaccines with an established leader in the area.”

Details of the partnership were not disclosed. Four Oaks Partners advised Sutro on the transaction.

About Sutro Biopharma

Sutro Biopharma, located in South San Francisco, is developing a new generation of antibody drug conjugate therapeutics and bifunctional antibody-based therapeutics for targeted cancer therapies. These therapeutics will significantly extend the clinical impact of current oncology therapeutic approaches and are beyond what can be envisioned with current, cell-based expression technologies. Sutro’s biochemical synthesis technology, which underpins these therapeutics, allows the rapid and systematic exploration of many protein drug variants to identify drug candidates. Once these product candidates are identified, production can be rapidly and predictably scaled up to commercial levels. Sutro has established a Good Manufacturing Practice (cGMP) facility for the production of clinical supplies of materials using its biochemical protein synthesis platform. Sutro is collaborating with pharmaceutical and biotech companies in the discovery and development of novel protein therapeutics.

Contact: