IDEAYA Biosciences and Hengrui Pharma Present Positive Phase 1 Data for IDE849 (SHR-4849), a Potential First-in-Class DLL3 TOP1 ADC, in Small Cell Lung Cancer at the IASLC 2025 World Conference on Lung Cancer

80.0% (8/10) ORR and 70.0% (7/10) confirmed ORR in 2L SCLC; a 73.7% (14/19) ORR and 57.9% (11/19) confirmed ORR (1 pending confirmation) were observed across all lines of SCLC at the 2.4 mg/kg expansion dose of IDE849 77.1% (27/35) ORR and 60.0% (21/35) confirmed ORR (4 pending…