sacituzumab tirumotecan   Click here for help

GtoPdb Ligand ID: 13791

Synonyms: Jiataile® | MK-2870 | sac-TMT | SKB264
Approved drug
sacituzumab tirumotecan is an approved drug
Compound class: Antibody
Comment: Sacituzumab tirumotecan (SKB264/MK-2870) is an antibody-drug conjugate (ADC) [1]. It is the same humanized anti-TROP-2 monoclonal antibody as the previously approved ADC sacituzumab govitecan, but carrying a different topoisomerase inhibitor payload (tirumotecan/KL610023) that is a belotecan-derivative. TROP-2 is a transmembrane glycoprotein, cell surface antigen which has oncogenic activity in cancers of epithelial origin [2], but expression is restricted in normal tissue. Directing the topoisomerase inhibitor selectively to cancer cells via TROP-2 binding is predicted to limit toxicity towards healthy tissue/cells.
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References
1. Cheng Y, Yuan X, Tian Q, Huang X, Chen Y, Pu Y, Long H, Xu M, Ji Y, Xie J et al.. (2022)
Preclinical profiles of SKB264, a novel anti-TROP2 antibody conjugated to topoisomerase inhibitor, demonstrated promising antitumor efficacy compared to IMMU-132.
Front Oncol, 12: 951589. [PMID:36620535]
2. Stoyanova T, Goldstein AS, Cai H, Drake JM, Huang J, Witte ON. (2012)
Regulated proteolysis of Trop2 drives epithelial hyperplasia and stem cell self-renewal via β-catenin signaling.
Genes Dev, 26 (20): 2271-85. [PMID:23070813]