BeiGene, Ltd. (NASDAQ: BGNE; HKEX: 06160), a commercial-stage biopharmaceutical company focused on developing and commercializing innovative molecularly-targeted and immuno-oncology drugs for the treatment of cancer, today announced that the China National Medical Products Administration (NMPA, formerly known as CFDA) has accepted a supplemental new drug application (sNDA) for tislelizumab, an investigational anti-PD-1 antibody, for the treatment of patients with previously treated locally advanced or metastatic urothelial carcinoma (UC).
“The development program for tislelizumab is achieving its milestones swiftly with our first solid-tumor filing for patients with previously treated urothelial carcinoma following our initial filing last year for patients with relapsed/refractory classical Hodgkin’s lymphoma. We sincerely hope that this submission, if approved, can bring a meaningful treatment option for patients with UC in China,” said Dr. Xiaobin Wu, General Manager of China and President of BeiGene. “We believe that the broad development program for this anti-PD1 inhibitor, along with manufacturing capabilities that are nearing completion, and non-clinical data presented earlier this year, reinforce tislelizumab as a potentially differentiated immuno-oncology compound. We are excited by its prospects to improve the way people with cancer are treated around the world.”
The sNDA is supported by a clinical, non-clinical, and CMC data package, including the results from a pivotal Phase 2 study of tislelizumab in 113 Chinese and South Korean patients with previously treated PD-L1+ locally advanced or metastatic urothelial carcinoma (chinadrugtrials.org registration number: CTR20170071). A recent independent review of data showed that, with a median follow-up time of 8 months at the data cutoff, overall response rate (ORR) in 104 efficacy-evaluable patients was 23.1 percent, including eight (7.7 percent) confirmed complete responses (CRs) and 16 (15.4 percent) confirmed partial responses (PRs). Frequency and severity of adverse events were generally consistent with the previously reported Phase 1/2 safety and tolerability data for tislelizumab, or, in the case of certain immune-related adverse events, consistent with previous reports of other PD-1 antibodies. Full results of the study are planned to be presented at an upcoming medical conference.
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