Ivonescimab in Combination with Chemotherapy Approved in China by NMPA for First-Line Treatment of Patients with Squamous Non-Small Cell Lung Cancer

Marks Third NMPA Approval in China for an Ivonescimab-Containing Regimen

NMPA Approval Based on HARMONi-6 Clinical Trial Conducted by Akeso in China

Ivonescimab in Combination with Chemotherapy Is the First Known Regimen to Achieve a Statistically Significant Overall Survival Benefit over an Anti-PD-(L)1 Antibody Combined with Chemotherapy in a Phase III Clinical Trial in NSCLC or Any Tumor Type

Summit Therapeutics Inc. (NASDAQ: SMMT) today noted that, on August 12, 2026, its partner Akeso Inc. (Akeso, HKEX Code: 9926.HK) announced receipt of marketing authorization in China from the National Medical Products Administration (NMPA) for the use of ivonescimab, a novel, potential first-in-class investigational bispecific antibody, in combination with chemotherapy for the first-line treatment of patients with advanced squamous non-small cell lung cancer (NSCLC).