CAMBRIDGE, Mass.?&?BEIJING?&?HEMEL HEMPSTEAD, England--(BUSINESS WIRE)--?BeiGene, Ltd.?(NASDAQ: BGNE; HKEX: 06160) and?EUSA Pharma (UK), Ltd.?today announced that the?China National Medical Products Administration?(NMPA) has granted QARZIBA^??(dinutuximab beta) conditional approval for the treatment of high-risk neuroblastoma in patients aged 12 months and above who have previously received induction chemotherapy and achieved at least a partial response, followed by myeloablative therapy and stem cell transplantation, as well as patients with a history of relapsed or refractory (R/R) neuroblastoma with or without residual disease. Dinutuximab beta is a targeted immunotherapy approved by the?European Medicines Agency?(EMA).ⁱ ?Dinutuximab beta represents an important biologic therapy for pediatric patients in?China, having been listed in the first batch of New Drugs in Urgent Clinical Need Marketed Overseas by the NMPA,? commented?Xiaobin Wu, Ph.D., President, Chief Operating Officer, and General Manager of?China?at?BeiGene. ?For these young patients fighting neuroblastoma in?China, we are proud to bring the first approved treatment.? ?We are delighted that the benefit of dinutuximab beta has been recognized in?China. This approval represents an important milestone in our mission and collaboration with?BeiGene?of bringing innovative cancer and rare disease therapies to patients,? said?Carsten Thiel, Ph.D., Chief Executive Officer of EUSA Pharma. The approval of dinutuximab beta in?China?for the treatment of patients with high-risk neuroblastoma was supported by clinical results available from key trials conducted by SIOPEN (The International Society of Paediatric Oncology Europe Neuroblastoma Group) in collaboration with APEIRON Biologics and EUSA Pharma. These randomized controlled trials evaluated the efficacy of dinutuximab beta by comparing the administration of dinutuximab beta with and without interleukin-2 (IL-2) in the first-line treatment of patients with high-risk neuroblastoma and in two single-arm studies in the R/R setting. In the SIOPEN trial (HR-NBL1), the five-year event-free survival (EFS) rate in patients treated with dinutuximab beta was 57% vs. 42% of historical controls (p<0.01) and the five-year overall survival (OS) rate was 64% vs. 50% (p=0.0001).ⁱⁱ?The safety of dinutuximab beta has been evaluated in 514 patients. The most common adverse reactions were pyrexia and pain that occurred despite analgesic treatment. Other frequent adverse reactions were hypersensitivity, vomiting, diarrhea, capillary leak syndrome, and hypotension. About QARZIBA^??(dinutuximab beta) QARZIBA^??is a monoclonal antibody that is specifically directed against the carbohydrate moiety of disialoganglioside 2 (GD2), which is overexpressed on neuroblastoma cells. Dinutuximab beta was approved by the?European Commission?in 2017 (See?EMA Summary?of Product Characteristics (SmPC)) and is indicated for the treatment of high-risk neuroblastoma in patients aged 12 months and above, who have previously received induction chemotherapy and achieved at least a partial response, followed by myeloablative therapy and stem cell transplantation, as well as patients with a history of relapsed or refractory neuroblastoma, with or without residual disease. Prior to the treatment of relapsed neuroblastoma, any actively progressing disease should be stabilized by other suitable measures. About EUSA Pharma Founded in?March 2015, EUSA Pharma is a world-class biopharmaceutical company focused on oncology and rare disease. The company has extensive commercial operations in?the United States?and?Europe, alongside a direct presence in select other markets across the globe. EUSA Pharma is led by an experienced management team with a strong record of building successful pharmaceutical companies and is supported by significant funding raised from leading life science investor?EW Healthcare Partners. For more information please visit?www.eusapharma.com. 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 to patients across the globe. We have a growing R&D team of approximately 2,300 colleagues dedicated to advancing more than 90 clinical trials involving more than 13,000 patients and healthy volunteers. Our expansive portfolio is directed by a predominantly internalized clinical development team supporting trials in more than 40 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. The Company currently markets three medicines discovered and developed in our labs: BTK inhibitor BRUKINSA in?the United States,?China,?Canada, 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 approximately 7,000 colleagues across five continents. To learn more about?BeiGene, please visit?www.beigene.com?and follow us on Twitter at @BeiGeneGlobal BeiGene 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 planned launch, potential benefits to patients, and opportunity of QARZIBA^??in?China, and other information that is not historical information. 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 products and drug candidates, if approved;?BeiGene's?ability to obtain and maintain protection of intellectual property for its technology and drugs;?BeiGene's?reliance on third parties to conduct drug development, manufacturing and other services; 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. QARZIBA^??is a registered trademark of?EUSA Pharma (UK), Ltd. GL-DNB-2100014.?August 2021.

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References ⁱ?European Medicines Agency, Qarziba (previously Dinutuximab beta EUSA and Dinutuximab beta APEIRON Biologics). Accessed:?August 2021?via?https://www.ema.europa.eu/en/medicines/human/EPAR/qarziba#authorisation-details-section. ⁱⁱ?Ladenstein, R et al.?Cancers?2020, 12, 309; doi:10.3390/cancers12020309.

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EUSA Media Rebecca Kerr +44 7909 703627 media@eusapharma.com BeiGene Investors Gabrielle Zhou +86 010 5895 8058 or +1 857-302-5189 ir@beigene.com BeiGene Media Liza Heapes?or?Vivian Ni +1 857-302-5663 or +1 857-302-7596 media@beigene.com Source:?BeiGene, Ltd.