CHENGDU, China, May 23, 2025 /PRNewswire/ — The 2025 American Society of Clinical Oncology (ASCO) Annual Meeting is scheduled to take place in Chicago, Illinois, USA from May 30 to June 3. Sichuan Kelun-Biotech Biopharmaceutical Co., Ltd. (6990.HK, the “Company”) will present results from six clinical studies, including data on its TROP2 ADC sac-TMT, anti-PD-L1 mAb tagitanlimab, and RET inhibitor KL590586 (A400/EP0031) during the meeting.
The study abstracts were published on the ASCO website on May 22, 2025 (CDT), with key highlights summarized below:
1. Sac-TMT in patients with previously treated advanced epidermal growth factor receptor (EGFR)-mutated non-small-cell lung cancer (NSCLC): Results from the randomized OptiTROP-Lung03 study
Oral Presentation: June 1, 10:12-10:24 CDT (Abstract #8507: Lung Cancer – Non-Small Cell Metastatic)
A total of 137 patients with advanced EGFR-mutant NSCLC who had progressed after EGFR-tyrosine kinase inhibitor (TKI) and platinum-based chemotherapy were randomized (2:1) to receive sac-TMT (5 mg/kg once every 2 weeks (Q2W)) or docetaxel (75 mg/m2 once every 3 weeks (Q3W)). The median follow-up of 12.2 months (data cutoff: December 31, 2024).
Sac-TMT achieved statistically significant and clinically meaningful outcomes compare d to docetaxel: confirmed objective response rate (ORR) (blinded independent review committee (BIRC): 45.1% vs 15.6%, one-sided p=0.0004), progression-free survival (PFS) (BIRC: median 6.9 vs 2.8 months, hazard ratio (HR)= 0.30, one-sided p