BeiGene, Ltd. announced that the China National Medical Products Administration (NMPA) has approved BeiGenes anti-PD-1 antibody tislelizumab as a second- or third-line treatment for patients with locally advanced or metastatic non-small cell lung cancer (NSCLC). A supplemental biologics license application for tislelizumab in this indication was previously accepted for review by the China NMPA in March 2021. The approval of tislelizumab was supported by clinical results from a randomized, open-label, global Phase 3 trial RATIONALE 303 (NCT03358875) comparing tislelizumab to docetaxel in the second- or third-line setting in patients with locally advanced or metastatic NSCLC who have progressed on prior platinum-based chemotherapy. A total of 805 patients in 10 countries across Asia, Europe, the Americas, and Oceania were enrolled in the trial, randomized 2:1 to either the tislelizumab arm or the docetaxel arm. As announced in November 2020, the trial met the primary endpoint of overall survival (OS) at the planned interim analysis, as recommended by the independent Data Monitoring Committee (IDMC). Tislelizumab was generally well-tolerated, consistent with known safety risks from previously reported results across different tumor types, with no new safety signals identified. The results of the interim analysis of the trial were presented at the American Association for Cancer Research (AACR) Annual Meeting and announced by BeiGene in April 2021.