Cancer Med:二氯化镭-223联合激素治疗激素受体阳性骨转移性乳腺癌的II期研究

2020-04-23 MedSci原创 MedSci原创

二氯化镭223(Ra-223)是一种靶向性α疗法,可诱导骨转移灶局部细胞毒性。我们评估了Ra‐223联合激素疗法在激素受体阳性(HR +)骨转移性乳腺癌中的疗效和安全性。

二氯化镭223(Ra-223)是一种靶向性α疗法,可诱导骨转移灶局部细胞毒性。我们评估了Ra‐223联合激素疗法在激素受体阳性(HR +)骨转移性乳腺癌中的疗效和安全性。

 

在这项单中心II期研究中,有36例患者接受了Ra-223(每4周静脉滴注55 kBq/kg),最多接受6个周期的内分泌治疗。主要目标是确定9个月时的临床疾病控制率。次要目标是确定(a)6个月时的肿瘤缓解率,(b)无进展生存期(PFS)持续时间和(c)安全性。

 

结果显示,先前对转移性疾病进行全身治疗的中位数为1(范围为0–4)。9个月时的疾病控制率为49%。6个月时的肿瘤缓解率为54%(完全缓解21%;部分缓解32%)。中位PFS为7.4个月(95%CI,4.8未达到[NR])。中位骨PFS为16个月(95%CI,7.3-NR)。没有3/4级不良事件的发生。

 

综上所述,该研究结果表明,Ra-223激素治疗显示出在HR +骨为主的乳腺癌转移中可能的疗效,不良事件可耐受。我们计划进一步研究Ra‐223在这些患者中的临床应用。

 

原始出处:

 

Naoto T. UenoRie K. Tahara, et al., Phase II study of Radium‐223 dichloride combined with hormonal therapy for hormone receptor‐positive, bone‐dominant metastatic breast cancer. Cancer Med. 2020 Feb; 9(3): 1025–1032. doi: 10.1002/cam4.2780

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    2021-03-03 songbq
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    2020-04-25 智慧医人

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