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XMT-1660 also known as Emiltatug Ledadotin is an investigational antibody-drug conjugate (ADC) that targets B7-H4 an immune checkpoint ligand frequently overexpressed in various cancers including breast ovarian and endometrial tumors. Developed using Mersana's Dolasynthen platform XMT-1660 employs a site-specific drug-to-antibody ratio (DAR 6) optimized for antitumor efficacy. The ADC incorporates a DolaLock microtubule inhibitor payload with a controlled bystander effect specifically designed to enhance localized cytotoxicity while minimizing off-target effects. XMT-1660 has demonstrated promising antitumor activity in xenograft models of breast and ovarian cancers and is currently undergoing Phase 1 clinical trials to assess its safety tolerability and pharmacokinetic profile in patients with advanced solid tumors. These trials aim to validate XMT-1660's therapeutic potential as a targeted therapy reinforcing its strategy to leverage tumor antigen expression for targeted drug delivery in oncology.
仅用于科研。不用于诊断过程。未经明确授权不得转售。