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Chinese consortium to jointly acquire U.S. biotechnology company Ambrx

By Pharmaceutical Processing | May 22, 2015

SHANGHAI, PRNewswire/ — A consortium (“the Consortium”) consisting of entities affiliated with Shanghai Fosun Pharmaceutical Group, HOPU Investments, China Everbright Limited’s healthcare fund (“CEL Healthcare Fund”), and WuXi PharmaTech announced today that the Consortium has signed a merger agreement pursuant to which the Consortium will acquire Ambrx Inc. The transaction is expected to close in the second quarter of 2015, subject to receipt of certain regulatory approvals and satisfaction of customary closing conditions.

Ambrx is a clinical-stage biotechnology company focused on discovering and developing first-in-class and best-in-class optimized protein therapeutics known as bio-conjugates. The company’s proprietary technology platforms enable attachment of pharmaceutically active molecules to specific sites within proteins more precisely than prior generations of bio-conjugates and with precision similar to that used to design small-molecule drugs. Ambrx has developed a pipeline of novel product candidates that include antibody-drug conjugates, or ADCs, bi- and multi-specific drug conjugates, and long-acting therapeutic proteins.

ADCs are expected to be one of the most important areas of monoclonal antibody development in the next decade, especially in targeted therapies for oncology, an area where Ambrx has a strong internal pipeline. The company’s most advanced internally developed product is ARX788, a site-specific ADC targeting Her2-positive breast cancer that Ambrx expects to begin clinical trials on in 2015.

In addition to its internal pipeline, Ambrx collaborates with leading pharmaceutical companies, including Bristol-Myers Squibb, Merck, Eli Lilly, and Agensys. Ambrx’s most advanced collaboration product candidate in human health is ARX618, a long-acting fibroblast growth factor 21 for type 2 diabetes, for which collaboration partner Bristol-Myers Squibb is conducting Phase 2 clinical trials in the United States. To date, collaborations have provided Ambrx with over $200 million in funding and have the potential to provide milestone payments and royalties on the sale of collaboration products.

Chairman of Fosun Pharma Mr. Chen Qiyu said, “This joint acquisition will result in great synergy with Fosun Pharma’s current R&D system and platform. Fosun Pharma has an internationalized R&D deployment in place with strong R&D capability. It has established an interactive and integrated R&D system in Shanghai, Chongqing, and San Francisco, focusing on the R&D of macromolecular biopharmaceutical drugs, especially monoclonal antibodies. Under the help of Fosun Pharma, Ambrx’s business expanding in China will enable Chinese patients to get faster access to innovative therapeutic drugs.”

“We are pleased to join the Consortium to acquire Ambrx, a top-tier innovative biologics company with a cutting-edge second-generation ADC technology platform,” said Dr. Ge Li, Chairman and CEO of WuXi PharmaTech. “This transaction will allow WuXi to broadly access Ambrx’s best-in-class ADC platform and biologics development capabilities to better serve our global customers.”

“We are excited to advance Ambrx’s development programs and technologies with members of the Consortium,” said Ambrx’s CEO and President Lawson Macartney, Ph.D., FRCPath. “I would like to thank Ambrx’s employees and partners for their dedicated efforts to bring important new therapies to patients.”

BMO Capital Markets Corp. is acting as exclusive financial advisor and Latham & Watkins is acting as legal advisor to Ambrx in connection with this transaction. Haynes and Boone is acting as legal advisor to the Consortium in connection with this transaction.

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