CATB-101
/ CatenaBio
- LARVOL DELTA
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October 31, 2025
Dual-payload TROP2 targeted antibody drug conjugate: Multi-Payload Conjugates™ deliver orthogonal mechanisms of cell killing
(SABCS 2025)
- "Sacituzumab govitecan (SG), a TROP2 targeted ADC, is approved as a 3rd line therapy in locally advanced or metastatic HER2 negative breast cancer, and in combination with pembrolizumab, is likely to see approval in 1st line therapy for PD-L1 positive tumors...Our selective conjugation platform allows the attachment of distinct payloads targeting different mechanisms of action at three unique sites on antibody scaffolds. Catena's lead TROP2 targeting MPC, CATB-101, features an optimized combination and ratio of tubulin and Topo1 inhibitors...In head-to-head comparisons with T-DXd, SG and Dato-DXd, MPCs out-perform the current approved ADCs in breast cancer and demonstrate full tumor elimination at low mg/kg doses... While advances have been made in the design of ADCs to expand to previously unaddressed populations, high patient relapse and the failure of recent mono-payload ADCs in late-stage trials indicate a need for novel multi-payload conjugates. Catena's..."
IO biomarker • Breast Cancer • HER2 Breast Cancer • HER2 Negative Breast Cancer • HER2 Positive Breast Cancer • Hormone Receptor Positive Breast Cancer • Triple Negative Breast Cancer • HER-2 • TACSTD2
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