CStone Pharmaceuticals, a biopharmaceutical company, researches and develops anti-cancer therapies to address the unmet medical needs of cancer patients in Mainland China and internationally. The company offers CEJEMLY (sugemalimab), a monoclonal antibody against programmed death (PD) ligand 1 for the treatment of non-small cell lung cancer (NSCLC), gastric adenocarcinoma/gastroesophageal junction adenocarcinoma, esophageal