
XMT-1660 is a novel DAR-6 Dolasynthen-based antibody drug conjugate carrying a DolaLock payload with controlled bystander effect and targeting B7-H4, a tumor antigen that is broadly expressed on the cell surface in breast, ovarian and endometrial cancers.
Emi-Le - Mersana Therapeutics
Emi-Le (emiltatug ledadotin; XMT-1660) is a B7-H4-directed Dolasynthen ADC with a precise, target-optimized drug-to-antibody ratio (DAR 6) and a proprietary payload with controlled bystander effect. B7-H4 is overexpressed in a range of …
Discovery and Preclinical Characterization of XMT-1660, an
2023年9月5日 · XMT-1660 is a site-specific DS DAR 6 ADC that induced complete tumor regressions in xenograft models of breast and ovarian cancer as well as in a syngeneic breast cancer model that is refractory to PD-1 immune checkpoint inhibition. In a panel of 28 breast cancer PDXs, XMT-1660 demonstrated activity that correlated with B7-H4 expression.
后起之秀!Mersana下一代ADC技术平台_DolaLock_药物_旁观者
2022年8月20日 · 代表性adc“xmt-1660” 1)靶向B7-H4,一种广泛表达于乳腺癌、卵巢癌和子宫内膜癌细胞表面的肿瘤抗原。 在肿瘤细胞和免疫抑制性肿瘤相关巨噬细胞 (TAM) 上也有表达。
XMT-1660: A phase 1b trial of a B7-H4 targeted antibody drug …
2023年5月31日 · XMT-1660 is a B7-H4-directed Dolasynthen antibody drug conjugate designed with a precise, optimized drug-to-antibody ratio and a DolaLock microtubule inhibitor payload with controlled bystander effect.
XMT-1660: A phase I, first-in-human trial of a B7-H4-directed ...
XMT-1660 is a B7-H4-directed dolasynthen antibody-drug conjugate (ADC) designed with a precise, optimized drug-to-antibody ratio (DAR 6) and a proprietary microtubule inhibitor payload with controlled bystander effect. In the pre-clinical setting, XMT-1660 has demonstrated antitumor activity in OC, EC, and BC PDX models.
• XMT‑1660 is a novel, investigational ADC targeting B7‑H4, an immune co‑inhibitory molecule • DES and EXP phases of this first‑in‑human, Phase 1 study will evaluate the preliminary safety and efficacy of XMT‑1660 monotherapy in TNBC, HR+/HER2‑ BC, EC, and OC – Primary endpoint of DES is to establish the MTD and assess safety
XMT-1660 的发现和临床前表征,一种用于治疗癌症的优化 B7-H4 …
XMT-1660 是一种位点特异性 DS DAR 6 ADC,可在乳腺癌和卵巢癌的异种移植模型以及对 PD-1 免疫检查点抑制无效的同基因乳腺癌模型中诱导肿瘤完全消退。 在一组 28 个乳腺癌 PDX 中,XMT-1660 表现出与 B7-H4 表达相关的活性。 XMT-1660 最近已进入针对癌症患者的 I 期研究 (NCT05377996) 的临床开发。 抗体药物偶联物 (ADC) 可实现对肿瘤的靶向药物递送,并在许多肿瘤类型中取得了临床成功。 ADC 的活性和安全性取决于其结构:抗体、有效负载、接头和缀 …
妇科肿瘤ADC新药动态:XMT-1660临床试验启动 - 知乎
2022年9月5日 · 美国FDA已授予XMT-1660快速通道指定,用于治疗晚期或转移性三阴性乳腺癌的成年患者。 1b期、首次进入人体、剂量升级和扩大、多中心研究 (NCT05377996)将有一个剂量升级和剂量扩大部分。 剂量递增阶段要评估的共同主要终点是剂量限制性 不良事件 (AEs)的频率,以确定推荐的第二阶段剂量,以及AEs的发生率,以确定该药物的安全性和耐受性。 剂量扩展阶段要评估的次要终点包括安全性/耐受性、客观反应率 (ORR)和反应持续时间 (DOR)2。 研究期间 …
Mersana靶向B7-H4 ADC获FDA快速通道认定 - 网易
2022年9月13日 · XMT-1660是一款利用Dolasynthen技术平台开发的B7-H4靶向抗体偶联药物(ADC),其药物与抗体比率为6(DAR=6),目前正在开展I期临床试验。 NCT05377996是一项多中心剂量递增和扩展Ib期研究,计划纳入166例患者,包括乳腺癌、子宫内膜癌、卵巢癌、输卵管癌和原发性腹腔癌,旨在研究XMT-1660 在实体瘤患者中的安全性、耐受性和抗肿瘤活性。 Dolasynthen技术平台以Mersana专有的DolaLock技术设计的微管蛋白抑制剂为有效载荷来生 …