BeiGene to Present New Clinical Data on Tislelizumab at ESMO IO Congress 2021

Results from RATIONALE 309 trial of tislelizumab in combination with chemotherapy in nasopharyngeal cancer will be presented in a proffered paper

Accepted abstracts also include new findings from clinical studies of tislelizumab and sitravatinib

BeiGene (NASDAQ: BGNE; HKEX: 06160), a global, science-driven biotechnology company focused on developing innovative and affordable medicines to improve treatment outcomes and access for patients worldwide, today announced that clinical results and updates from its diverse immuno-oncology portfolio will be presented at the European Society for Medical Oncology Immuno-Oncology (ESMO IO) Congress 2021 being held December 8-11, 2021.

“Despite recent advances in immuno-oncology, chemotherapy remains the standard of care for many patients living with cancer around the world. We look forward to presenting findings on the potential of our anti-PD-1 antibody tislelizumab to treat nasopharyngeal cancer, a rare cancer that is more common in underserved areas of the world, as well as in melanoma and ovarian cancer,” commented Yong (Ben) Ben, M.D., Chief Medical Officer, Immuno-Oncology at BeiGene. “Our R&D team, one of the largest oncology R&D teams in the world, is exploring novel combinations and mechanisms of action around the PD-1 axis to identify potential synergies and overcome PD-1 resistance, as we work to increase access to innovative medicines for patients with limited treatment options.”

To learn more about BeiGene’s research and development and activities at ESMO IO, please visit https://beigenemedical.eu/.

Broad Clinical Program to Address Unmet Needs

To bring forth potential new treatment options and uncover further insights into checkpoint inhibition in solid tumors and hematological malignancies, BeiGene is evaluating tislelizumab, a potentially differentiated anti-PD-1 antibody, in a broad clinical program, including 13 Phase 3 trials and four pivotal Phase 2 trials, and in collaboration with Novartis.

At ESMO IO, results from an interim analysis of the randomized, double-blind, Phase 3 RATIONALE 309 trial (NCT03924986) evaluating tislelizumab in combination with chemotherapy in recurrent or metastatic nasopharyngeal cancer (RM-NPC) will be presented in a Proffered Paper. These results supported the regulatory submission in China for NPC.

Novel Combination Therapies to Expand Clinical Benefit of Anti-PD-1 Antibodies

Combination strategy is considered key to overcoming primary and acquired resistance to anti-PD-1 therapy and expanding clinical benefit of immunotherapy to more patients. BeiGene is investigating the potential of novel tislelizumab combinations to drive stronger and more sustained tumor responses and impede tumor immune escape. At ESMO IO, results from two cohorts of a Phase 1b trial (NCT03666143) evaluating tislelizumab in combination with the oral, spectrum-selective kinase inhibitor sitravatinib in metastatic melanoma and platinum-resistant ovarian cancer will be presented. BeiGene is developing sitravatinib in collaboration with Mirati Therapeutics, Inc.

Additionally, BeiGene will share details on the design of the Phase 3 AdvanTIG-301 trial (NCT04866017) evaluating its investigational Fc-competent anti-TIGIT-antibody ociperlimab in combination with tislelizumab and concurrent chemoradiotherapy (eCRT) as a first-line treatment for patients with locally advanced, unresectable non-small cell lung cancer.

BeiGene’s Presentations at ESMO IO Congress 2021

BeiGene Oncology

BeiGene is committed to advancing best and first-in-class clinical candidates internally or with like-minded partners to develop impactful and affordable medicines for patients across the globe. We have a growing R&D team of approximately 2,750 colleagues dedicated to advancing more than 70 clinical trials involving more than 14,000 patients and healthy volunteers. Our expansive portfolio is directed by a predominantly internalized clinical development team supporting trials in more than 45 countries. Hematology-oncology and solid tumor targeted therapies and immuno-oncology are key focus areas for the Company, with both mono- and combination therapies prioritized in our research and development. We currently market three medicines discovered and developed in our labs: BTK inhibitor BRUKINSA in the United States, China, Canada, Australia and additional international markets; and non-FC-gamma receptor binding anti-PD-1 antibody tislelizumab and PARP inhibitor pamiparib in China.

BeiGene also partners with innovative companies who share our goal of developing therapies to address global health needs. We commercialize a range of oncology medicines in China licensed from Amgen and Bristol Myers Squibb. We also plan to address greater areas of unmet need globally through our collaborations including with Amgen, Bio-Thera, EUSA Pharma, Mirati Therapeutics, Seagen, and Zymeworks. BeiGene has also entered into a collaboration with Novartis granting Novartis rights to develop, manufacture, and commercialize tislelizumab in North America, Europe, and Japan.

About BeiGene

BeiGene is a global, science-driven biotechnology company focused on developing innovative and affordable medicines to improve treatment outcomes and access for patients worldwide. With a broad portfolio of more than 40 clinical candidates, we are expediting development of our diverse pipeline of novel therapeutics through our own capabilities and collaborations. We are committed to radically improving access to medicines for two billion more people by 2030. BeiGene has a growing global team of over 7,700 colleagues across five continents. To learn more about BeiGene, please visit www.beigene.com and follow us on Twitter at @BeiGeneGlobal.

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 plans for development and commercialization of tislelizumab in nasopharyngeal carcinoma, ovarian cancer, melanoma and other solid tumors, plans for making tislelizumab accessible to patients, the potential for tislelizumab to be a differentiated anti-PD-1 antibody and to provide improved clinical benefits to patients, and BeiGene’s plans, commitments, aspirations and goals under the headings “BeiGene Oncology” and “About BeiGene”. 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 or marketing approval; actions of regulatory agencies, which may affect the initiation, timing and progress of clinical trials and marketing approval; BeiGene's ability to achieve commercial success for its marketed medicines and drug candidates, if approved; BeiGene's ability to obtain and maintain protection of intellectual property for its medicines and technology; BeiGene's reliance on third parties to conduct drug development, manufacturing and other services; BeiGene’s limited experience in obtaining regulatory approvals and commercializing pharmaceutical products and its ability to obtain additional funding for operations and to complete the development and commercialization of its drug candidates and achieve and maintain profitability; the impact of the COVID-19 pandemic on BeiGene’s clinical development, regulatory, commercial, and other operations, 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.

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