• HS-20093, a B7-H3-targeted antibody-drug conjugate, demonstrated encouraging antitumor activity in patients with previously treated extensive-stage small cell lung cancer (ES-SCLC).
• In the ARTEMIS-001 trial, HS-20093 achieved an overall response rate (ORR) of 61.3% at 8 mg/kg and 50.0% at 10 mg/kg in ES-SCLC patients.
• The disease control rate (DCR) was high in both cohorts, with 80.6% for the 8.0-mg/kg group and 95.5% for the 10.0-mg/kg group, indicating effective disease stabilization.
• The safety profile of HS-20093 was manageable, with hematologic adverse events being the most common, and the 8.0-mg/kg dose showing a better safety profile.