第二阶段单相对低分离辐射,以便及时获得部分乳腺放射治疗 (SHIFT-PB)
Robert Olson1,2,3,4, Marjorie Cua5, Quinn Matthews5
1University of British Columbia, Vancouver, Canada. rolson2@bccancer.bc.ca.
BMC cancer
|August 9, 2025
概括
这项研究测试是否随机将早期乳腺癌患者随机分为单片部分乳腺照射 (PBI) 是可行的. 如果成功,单分量PBI可以减少等待时间并改善对放射治疗的准入.
科学领域:
- 在瘤学瘤学.
- 辐射瘤学 辐射瘤学
- 临床试验 临床试验
背景情况:
- 乳腺癌是全球领先的癌症发病率.
- 全乳房照射 (WBI) 是乳房保护手术后早期疾病的标准.
- 部分乳房照射 (PBI) 显示了与WBI相比的疗效和毒性,建议使用各种分成方案.
研究的目的:
- 测试将患者随机分配到单片段 (13 Gy) 与5片段 (26 Gy) 部分乳腺照射 (PBI) 进行早期,节点阴性乳腺癌的可行性.
- 在定义的时间框架内,评估跨多个癌症中心的累积率.
- 评估二次终点,包括治疗时间,局部控制,生活质量和毒性.
主要方法:
- 第二期随机对照试验.随机对照试验.
- 主要目标:将患者随机分配到PBI的1对5分数的可行性.
- 累计目标: 60名参与者在6个BC癌症中心中的4个中超过2年.
主要成果:
- 主要结果是60名参与者的成功积累和随机化.
- 二次结果包括从CT模拟到放射治疗的时间,局部控制率,生活质量 (POSI-乳房) 和毒性率 (CTCAE,PRO-CTCAE).
- 总生存率和无进展生存率也是次要终点.
结论:
- 单分数PBI随机化可行性测试的成功可行性测试可能会导致III期非劣势性试验.
- 如果非劣质,单分数PBI在减少等待时间和改善对辐射的访问方面提供了潜在的好处.
- 这种方法可能特别有利于需要前往治疗的农村和偏远地区的患者.
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