Drug intelligence / Profile preview

zocilurtatug pelitecan + obrixtamig

Development stage
Phase 2
Lead developer
Boehringer Ingelheim
Modality
Cytotoxic ADCs → Antibody-Drug Conjugates (ADCs) → Antibody Conjugates → Antibody-Based Therapeutics, T-cell Engagers → Multispecific Antibodies → Engineered Antibody Formats → Antibody-Based Therapeutics, Bispecific Antibodies → Multispecific Antibodies → Engineered Antibody Formats → Antibody-Based Therapeutics, Monoclonal Antibodies → Antibody-Based Therapeutics
Administration
Intravenous
01

Overview

The combination of zocilurtatug pelitecan (formerly ZL-1310) and obrixtamig (BI 764532) is an investigational dual-targeting therapeutic regimen designed to treat delta-like ligand 3 (DLL3)-expressing malignancies. Zocilurtatug pelitecan is a next-generation antibody-drug conjugate (ADC) consisting of a humanized anti-DLL3 monoclonal antibody conjugated to a novel camptothecin derivative (a topoisomerase 1 inhibitor) payload via a protease-cleavable linker using the TMALIN platform. Obrixtamig is an IgG-like bispecific T-cell engager (TCE) that simultaneously binds to DLL3 on tumor cells and CD3 on T-cells, redirecting the patient's immune system to selectively lyse DLL3-expressing cancer cells. This combination is being co-developed by Boehringer Ingelheim and Zai Lab under a clinical collaboration. It is currently being evaluated in the Phase Ib/II DAREON-36 clinical trial (NCT07707895) for the treatment of patients with advanced small cell lung cancer (SCLC) and other poorly differentiated neuroendocrine carcinomas (NECs), both as a doublet and as a triplet regimen in combination with the PD-L1 inhibitor atezolizumab.

Other names
BI 764532 + ZL-1310BI 764532 + zocilurtatug pelitecanBI-764532 + ZL-1310BI-764532 + zocilurtatug pelitecanobrixtamig + ZL-1310obrixtamig + zocilurtatug pelitecanzocilurtatug pelitecan + obrixtamigZL-1310 + obrixtamig
02

Targets

CD3 (T-cell surface glycoprotein CD3)DLL3 (Delta-like ligand 3)

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