HONG KONG, Oct. 19, 2025 /PRNewswire/ -- On October 19, 2025, Akeso (9926.HK) announced the final analysis results from the COMPASSION-15/AK104-302 study at the 2025 European Society of Medical Oncology Congress (ESMO 2025) .  COMPASSION-15 is a Phase III clinical trial evaluating cadonilimab, Akeso's first-in-class PD-1/CTLA-4 bispecific antibody, in combination with oxaliplatin and capecitabine as first-line treatment for unresectable, locally advanced, recurrent, or metastatic gastric or gastroesophageal junction (G/GEJ) adenocarcinoma.  Professor Shen Lin, principal investigator from Peking University Cancer Hospital, presented the findings in an oral session at ESMO 2025.

In this final analysis presented at ESMO 2025 (median follow-up: 33.9 months), the cadonilimab regimen demonstrated enhanced long-term survival benefits in first-line advanced G/GEJ adenocarcinoma. With the extended follow-up period and more mature data, the cadonilimab treatment regimen showed a further reduction in the risk of death compared to the control group. This consistent benefit was observed across all PD-L1 expression subgroups.

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