这是一项关于SHP2抑制剂BBP-398在患有高级固体瘤的患者身上进行的首次人体第一期研究
Gerald Falchook1, Camila Braganca Xavier2, David Van Veenhuyzen3
1Sarah Cannon Research Institute at HealthONE, Denver, CO, USA.
NPJ precision oncology
|March 1, 2026
概括
一种SHP2抑制剂BBP-398在具有MAPK路径突变的高级固体瘤中显示了初步疗效. 该药物在每天高达450毫克的剂量下,在近30%的患者中显示出疾病稳定性.
科学领域:
- 在瘤学瘤学.
- 药理学 药理学是指药理学的学科.
- 临床试验 临床试验
背景情况:
- 中原激活蛋白激酶 (MAPK) 途径突变驱动各种先进的固体瘤.
- SHP2抑制剂代表了针对这些恶性瘤的向治疗策略.
- BBP-398是一种新的,选择性的,全性SHP2抑制剂.
研究的目的:
- 为了评估BBP-398的安全性,耐受性,药理动力学和初步疗效,在首次在人身上进行第一阶段试验.
- 为了确定BBP-398.8的最大耐受剂量 (MTD) 和推的第二阶段剂量 (RP2D).
- 评估在患有MAPK路径突变的先进实体瘤的患者中对位参与和初步抗瘤活性.
主要方法:
- 一个第一阶段的剂量升级 (1a) 和剂量扩展 (1b) 研究,每天服用BBP-398一次,用于晚期固体瘤患者.
- 剂量升级范围为350-550毫克,剂量扩展为350毫克和450毫克.
- 评估了安全性,耐受性,药理动力学,目标参与和疗效终点,包括疾病控制率 (DCR),无进展生存率 (PFS) 和整体生存率 (OS).
主要成果:
- 剂量升级在550毫克时停止,原因是血小板缺血和水的发生率增加.
- 在1a期,26%的可评估患者实现了稳定疾病 (SD),PFS的中位数为1.8个月.
- 在1b阶段,大约30%的可评估患者每天服用高达450毫克的剂量达到SD,PFS的中位数为1.9-2.2个月.
- BBP-398表现出每天高达450毫克的可接受安全性,近30%的重度预治疗患者的疾病稳定.
结论:
- 每天高达450毫克的BBP-398表现出可接受的安全性和初步疗效,包括疾病稳定,在患有晚期固体瘤和MAPK路径突变的患者中.
- 该研究在550毫克时发现了剂量限制性毒性 (血小板缺血,),为进一步开发提供了剂量选择的信息.
- BBP-398需要进一步研究作为针对MAPK驱动瘤的向疗法.
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