剂量密集的多西和-223在骨主导的转移性割抵抗性前列腺癌中
Brendan Connell1, Clara Hwang2, Edmund Folefac3
1Department of Hematology & Oncology, Tufts Medical Center, Boston, MA; Division of Hematology & Oncology, Lahey Hospital & Medical Center, Burlington, MA.
Clinical genitourinary cancer
|May 18, 2025
概括
剂量密集的多塞塔塞尔与-223相结合是一种安全有效的治疗骨主导性割抵抗性前列腺癌. 这种组合显示出有前途的无进展和总生存率,可控毒性.
科学领域:
- 在瘤学瘤学.
- 医学瘤学 医学瘤学
- 前列腺癌研究 研究前列腺癌
背景情况:
- 抗割前列腺癌 (CRPC) 往往会随着骨转移而进展.
- 多塞和-223是有效的治疗方法,但骨髓抑制限制了它们的组合.
- 剂量密集的多塞塔克塞尔疗法可以减轻骨髓抑制.
研究的目的:
- 在骨主导转移性CRPC患者中,评估剂量密集的多塞与-223的安全性和有效性.
- 为了确定这种组合治疗的最大耐受剂量 (MTD).
主要方法:
- 使用了一种剂量升级和扩展研究设计.
- 患者接受了为期4周的剂量密集的多塞塔塞尔 (每2周一次),然后每4周一次与-223的组合.
- 为了确定MTD,多塞塔克塞尔的剂量水平被升级,配合花细胞殖民地刺激因子 (G-CSF) 的支持,以确定MTD.
主要成果:
- 在第16天,MTD被确定为多塞塔塞尔50 mg/m2与G-CSF.
- 在35名在MTD治疗的患者中没有观察到发烧性中性质衰竭事件.
- 这种组合显示PSA50响应率为51.4%,PSA90响应率为25.7%.
结论:
- 使用G-CSF的剂量密集的多塞塔克塞尔计划允许与标准剂量-223.3的安全组合.
- 这种疗法显示出治疗骨主导转移性CRPC的潜力,其血液毒性可控.
- 这种组合可能适合在高风险,高体积割敏感转移性疾病中进行进一步研究.
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