$BGNE Announces First #BGBA317 Patient Dosing in #China

BEIJING, Dec. 30, 2016  — BeiGene, Ltd. (NASDAQ:BGNE), a clinical-stage biopharmaceutical company developing molecularly-targeted and immuno-oncology drugs for the treatment of cancer, today announced the dosing of the first patient in a Phase I clinical trial of BGB-A317, an anti-PD-1 monoclonal antibody, in mainland Chinese patients with advanced solid tumors.

“We are pleased to report that BGB-A317 is now in Phase I clinical evaluation in mainland China. To date, all four of our clinical-stage molecules are active in the clinic in China. We are enthusiastic about the agent’s therapeutic potential, with promising data from an ongoing Phase I study of BGB-A317 in Australia, New Zealand, the United States, and Taiwan recently reported at the 2016 Society for Immunotherapy of Cancer Annual Meeting. We are committed to developing BGB-A317 for patients in China, where this exciting class of immuno-oncology agents is still not approved,” commented John V. Oyler, Founder, Chief Executive Officer, and Chairman.

The Phase I open-label, multi-center study of BGB-A317 is designed to investigate the safety, tolerability, pharmacokinetics, and preliminary antitumor activity of BGB-A317 in Chinese patients with advanced solid tumors. Professor Yilong Wu from Guangdong General Hospital is the lead principal investigator of the study. The co-lead investigators are Professor Lin Shen and Professor Jun Guo, both of Beijing Cancer Hospital.

About BGB-A317

BGB-A317 is an investigational humanized monoclonal antibody that belongs to a class of immuno-oncology agents known as immune checkpoint inhibitors. It is designed to bind to PD-1, a cell surface receptor that plays an important role in downregulating the immune system by preventing the activation of T-cells. BGB-A317 has high affinity and specificity for PD-1, and we believe it is differentiated from the currently approved PD-1 antibodies with the ability to bind Fc gamma receptor I specifically engineered out. BGB-A317 is being developed as a monotherapy and in combination with other therapies for the treatment of various cancers.

About BeiGene

BeiGene is a global, clinical-stage, research-based biotechnology company focused on molecularly targeted and immuno-oncology cancer therapeutics. With a team of over 300 scientists, clinicians and staff in mainland China, the United States, Australia and Taiwan, BeiGene is advancing a pipeline consisting of novel oral small molecules and monoclonal antibodies for cancer. BeiGene is working to create combination solutions aimed to have both a meaningful and lasting impact on cancer patients.

Forward-Looking Statements

This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 and other federal securities laws, including statements regarding the encouraging clinical data of BGB-A317, the potential implications of these data for the future development of BGB-A317, and BeiGene’s advancement of, and anticipated clinical development and regulatory milestones and plans related to BGB-A317. Actual results may differ materially from those indicated in the forward-looking statements as a result of various important factors, including BeiGene’s ability to demonstrate the efficacy and safety of its drug candidates; the clinical results for its drug candidates, which may not support further development; actions of regulatory agencies, which may affect the initiation, timing and progress of clinical trials; BeiGene’s ability to achieve market acceptance in the medical community necessary for commercial success; BeiGene’s ability to obtain and maintain protection of intellectual property for its technology and drugs; BeiGene’s reliance on third parties to conduct preclinical studies and clinical trials; BeiGene’s limited operating history and BeiGene’s ability to obtain additional funding for operations and to complete the development and commercialization of its drug candidates, as well as those risks more fully discussed in the section entitled “Risk Factors” in BeiGene’s most recent quarterly report on Form 10-Q, as well as discussions of potential risks, uncertainties, and other important factors in BeiGene’s subsequent filings with the U.S. Securities and Exchange Commission.  All information in this press release is as of the date of this press release, and BeiGene undertakes no duty to update such information unless required by law.

Investor/Media Contact

Lucy Li, Ph.D.
+1 781-801-1800
ir@beigene.com 
media@beigene.com