CStone Announces Publication of GEMSTONE-303 Study Results
Sugemalimab is the world’s first anti-PD-L1 monoclonal antibody approved for the treatment of gastric or gastroesophageal junction (G/GEJ) adenocarcinoma. The GEMSTONE-303 study results support sugemalimab in combination with chemotherapy as a new standard first-line treatment for patients with PD-L1 combined positive score (CPS) ?5. Sugemalimab is the first anti-PD-L1 monoclonal antibody demonstrating superior overall survival (OS) and progression free survival (PFS) with a manageable safety profile in combination with chemotherapy compared to placebo plus chemotherapy in patients with locally advanced or metastatic G/GEJ adenocarcinoma who have not received prior systemic treatment for advanced disease and have PD-L1 CPS ?5. Sugemalimab has received approvals for five indications in China, and for first-line treatment of Stage IV non-small cell lung cancer (NSCLC) in China, Europe and the UK. CStone will continue to engage with health authorities in Europe and other regions for…
