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. 2025 Nov 5;14:130. doi: 10.1186/s40164-025-00720-w

Table 3.

Ongoing clinical trials targeting novel therapeutic pathways in SCLC

Study Population Drug Function Phase Line Sample size State Primary end point
DLL3
 NCT04429087 SCLC; progressed 1 line of platinum-based treatment(including anti-PD-1/PD-L1) Obrixtamig (BI 764532) T-cell connectors targeting DLL3 phase I ≥ 2 / Recruiting MTD
 DAREON-9 (NCT05990738) SCLC; progressed 1 line of platinum-based treatment(including anti-PD-1/PD-L1) Obrixtamig (BI 764532) + topotecan/single agent chemotherapy T-cell connectors targeting DLL3 phase 1b ≥ 2 25 Recruiting DLTs, MTD
 NCT05978284 SCLC; progressed 1 line of platinum-based treatment(including anti-PD-1/PD-L1) ZG006 DLL3/DLL3/CD3 trispecific T-cell engager phase II ≥ 2 48 Recruiting DLTs, MTD
 NCT06592638 SCLC; progressed 1 line of platinum-based treatment(including anti-PD-1/PD-L1) ZG006 DLL3/DLL3/CD3 trispecific T-cell engager phase I ≥ 2 / Recruiting DLTs, MTD
 IDE849-001 (NCT07174583) SCLC; progressed 1 line of platinum-based treatment(including anti-PD-1/PD-L1) IDE849 DLL3 ADC phase I/II ≥ 2 / Recruiting Safety and Tolerability
DNA damage response modulator
 NCT05815160 SCLC; progressed 1 line of platinum-based treatment(including anti-PD-1/PD-L1) Debio0123 + etoposide + carboplatin WEE1 kinase inhibitors phase I ≥ 2 16 Recruiting DLTs
B7-H3
 NCT06954246 SCLC; progressed 1 line of platinum-based treatment(including anti-PD-1/PD-L1) MHB088C B7-H3 ADC phase I/II ≥ 2 91 Recruiting ORR, OS
 IDEate-Lung01 (NCT05280470) SCLC; progressed 1 line of platinum-based treatment(including anti-PD-1/PD-L1) Ifinatamab Deruxtecan (I-DXd) B7-H3 ADC phase II ≥ 2 137 Active, not recruiting ORR

Abbreviations: DLTs, dose limiting toxicities; MTD, maximum tolerated dose; ADC, antibody drug conjugate