CSPC Innovation Pharmaceutical Co Ltd Class ASYS6010 combined with enlonstobart showed strong Phase I/II efficacy (ORR up to 82.4% in high PD-L1 patients) and has advanced to Phase III trials.

CSPC Innovation Pharmaceutical Co., Ltd. announced on September 14, 2026 that its controlling subsidiary CSPC Megalith Biopharmaceutical Co., Ltd. presented Phase I/II clinical study data for SYS6010 combined with enlonstobart injection in an oral presentation at the 2026 World Conference on Lung Cancer. The study was led by Professor Zhou Caicun of Shanghai East Hospital, evaluating the safety, tolerability, and preliminary efficacy of SYS6010, an EGFR-targeting ADC, combined with enlonstobart, a PD-1 inhibitor, with or without chemotherapy in patients with EGFR and ALK wild-type advanced non-small cell lung cancer and other conditions. As of July 13, 2026, a total of 123 patients with untreated driver-gene-negative advanced non-small cell lung cancer were enrolled across two dosing regimens, with a median follow-up of 10.8 months. In terms of safety, the incidence of grade 3 or higher treatment-related adverse events was 51.6% and 52.5% for the two regimens, respectively, and the incidence of adverse events leading to discontinuation was 9.7% and 8.2%, respectively. In terms of efficacy, the confirmed objective response rates in the overall population were 58.9% and 49.2%, respectively, and the ORRs in patients with high PD-L1 expression were 77.8% and 82.4%, respectively. Among patients with high PD-L1 expression and non-squamous histology, the ORRs reached 81.8% and 91.7%, respectively. The combination therapy has now entered Phase III clinical trials, and the company cautioned that innovative drug development involves high investment, high risk, and long cycles, and will not have a significant impact on performance in the short term.
CSPC Innovation Pharmaceutical Co Ltd Class ASYS6010 combined with enlonstobart showed strong Phase I/II efficacy (ORR up to 82.4% in high PD-L1 patients) and has advanced to Phase III trials.