SUZHOU, China, Dec. 21, 2021 /PRNewswire/ -- CStone Pharmaceuticals (the "Company" or "CStone") is pleased to announce that the National Medical Products Administration ("NMPA") of China has approved the new drug application ("NDA") of anti-PD-L1 monoclonal antibody Cejemly® (sugemalimab) in combination with chemotherapy for treatment-naïve metastatic (stage IV) non-small cell lung cancer ("non-small cell lung caner" or "NSCLC") patients. Key Highlights Globally, the incidence of lung cancer continues to rise, and it is still the leading cause of cancer death worldwide, with huge unmet medical needs. According to statistics, there were 2.21 million new lung cancer cases worldwide in 2020. NSCLC accounts for about 85% of all lung cancer cases, and about 66% of patients are diagnosed with stage III/IV NSCLC.