发达固体瘤患者的图萨米他姆拉夫坦辛:使用替代剂量方案对安全性,药理动力学和抗瘤活性进行I期研究
Josep Tabernero1, Philippe L Bedard2, Yung-Jue Bang3
1Vall d'Hebron Hospital Campus and Institute of Oncology (VHIO), UVic-UCC, IOB-Quirón, Barcelona, Spain.
Cancer research communications
|August 30, 2023
概括
在表达CEACAM5.5的固体瘤患者中,图萨米他马布 (tusamitamab ravtansine) 显示出有利的安全性. 替代剂量表建立了新的最大耐受剂量,为未来的临床试验提供了信息.
科学领域:
- 在瘤学瘤学.
- 药理学 药理学 是一个学科.
背景情况:
- 图萨米他马布 (Tusamitamab ravtansine) 是一种针对CEACAM5的抗体-药物结合体,具有细胞毒性有效载荷.
- 之前的一项I期研究确定了每两周一次 (Q2W) 的100mg/m2的最大耐受剂量 (MTD).
研究的目的:
- 评估在患有晚期固体瘤的患者中使用tusamitamab和ravtansine的替代剂量计划.
- 确定剂量限制性毒性 (DLT) 和新表的安全性概况.
主要方法:
- 成年患者 (N=43) 患有CEACAM5表达的固体瘤在不同的时间表中接受了tusamitamab ravtansine:加载剂量 (LD),然后是100 mg/m2 Q2W (n=28) 或固定剂量Q3W (n=15).
- 主要终点是早期周期的DLT.
主要成果:
- 在两个方案中,在较高剂量下观察到可逆的DLT.
- 与治疗相关的不良事件 (AE) 在67.9% (Q2W-LD) 和86.7% (Q3W) 的患者中发生;3名患者因AE而停止治疗.
- 最常见的副作用包括喘息,胃肠道疾病,角膜病变,角膜炎和外围神经病变. 在35.7% (Q2W-LD) 和40.0% (Q3W) 的患者中观察到稳定的疾病.
结论:
- 图萨米他马布 (Tusamitamab ravtansine) 在两种测试的替代方案中都显示出有利的安全性.
- MTDs被确定为170 mg/m2 (LD),其次是100 mg/m2 Q2W,以及170 mg/m2 Q3W (固定的剂量).
- 这些发现将指导进一步对CEACAM5表达型固体瘤 (包括非小细胞肺癌) 的tusamitamab ravtansine的研究.
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