在寡进性割抗性前列腺癌的进展导向疗法:从前性,单臂,第2阶段MEDCARE试验的最终结果
Kato Rans1, Steven Joniau2, Charlien Berghen1
1Department of Radiation Oncology, University Hospitals Leuven, Leuven, Belgium.
European urology oncology
|April 25, 2024
概括
进展导向疗法 (PDT) 可以延迟下一线全身治疗 (NEST) 的需要,在患有寡进性转移性割抵抗性前列腺癌 (mCRPC) 的患者中. 这种方法显示了17个月的中位数无NEST生存期,毒性最小.
科学领域:
- 在瘤学瘤学.
- 辐射瘤学 辐射瘤学
- 医学物理 医学物理
背景情况:
- 转移性割抵抗性前列腺癌 (mCRPC) 尽管采用标准治疗,但往往会进展.
- 以有限的病变为特征的寡进性mCRPC,对治疗顺序提出了独特的挑战.
- 下一线全身治疗 (NEST) 是渐进式mCRPC的当前标准.
研究的目的:
- 评估推迟NEST启动在患有寡进性mCRPC的患者中的可行性.
- 评估进展导向治疗 (PDT) 在延迟NEST的必要性方面的有效性.
主要方法:
- 进行了一项前性,单臂的第二阶段试验 (MEDCARE).
- 符合条件的患有寡进性mCRPC的患者接受PDT,同时继续他们现有的全身治疗.
- 主要终点是无NEST生存率 (NEST-FS);次要终点包括生存率和毒性.
主要成果:
- 20名38名患有寡进性病变的患者接受了PDT治疗.
- 中位数无NEST生存期为17个月,两年NEST-FS的比率为35%.
- 观察到高的前列腺癌特异性存活率 (80%在2年) 和整体存活率 (70%在2年),95%的局部控制和没有等级≥3毒性.
结论:
- PDT是一种可行的策略,可以在寡头渐进的mCRPC中推迟NEST.
- 这种治疗显示了17个月的中位数无NEST生存期.
- PDT显示出良好的安全性,没有显著的早期或晚期毒性.
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