脑转移瘤的立体定向放射外科剂量递增
脑转移瘤立体定向放射外科剂量递增的 I 期研究
研究概览
研究类型
注册 (估计的)
阶段
- 阶段1
联系人和位置
学习联系方式
- 姓名:David Ostler
- 电话号码:801-585-0550
- 邮箱:David.Ostler@hci.utah.edu
研究联系人备份
- 姓名:Clinical Trials Office
- 电话号码:801-646-9922
- 邮箱:HCI-Clinicaltrials@hci.utah.edu
学习地点
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Utah
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Salt Lake City、Utah、美国、84112
- 招聘中
- Huntsman Cancer Institute
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接触:
- David Ostler
- 电话号码:801-587-4429
- 邮箱:David.Ostler@hci.utah.edu
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首席研究员:
- Lindsay Burt, MD
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参与标准
资格标准
适合学习的年龄
接受健康志愿者
描述
纳入标准:
- 通过 CT 或 MRI 标准临床证实的脑转移。 如果有颅外转移性疾病的证据,最好对病灶进行病理学确认(排除的组织学见第 4.2.5 节)并由犹他大学或亨斯迈癌症医院的病理学家进行复查,前提是初始复查是在外面的设施。
- 允许事先进行脑部手术,但不会选择位于手术床上的病灶接受实验剂量的 SRS 治疗。 如果患者进行了开颅手术以切除病灶,则应在术后 4-6 周进行 SRS。 PI 可酌情决定在 4-6 天开颅手术后窗口之外执行 SRS 的患者入组。
- 患者必须总共有 1-5 个未经治疗的脑转移瘤。
- 对于计划加入队列 1a(包括扩展)或队列 1a 的患者:在咨询/筛查试验中的转移性病灶时,通过 CT 或 MRI 测量的等效肿瘤直径≤ 20 毫米。 通过 CT 或 MRI 测量标准治疗 SRS 剂量治疗的所有病变的等效肿瘤直径 </= 20 mm。
- 对于计划加入队列 2 或队列 3 的患者:在咨询/筛查试验中的转移性病灶时,通过 CT 或 MRI 测量的等效肿瘤直径≤ 40 mm。 通过 CT 或 MRI 测量标准治疗 SRS 剂量治疗的所有病变的等效肿瘤直径 </=40 mm。 从第 9 版协议开始,队列 2 和队列 3 永久关闭以进行应计。
- 所有转移病灶必须从彼此最接近的病灶外围边缘测量至少 3 厘米。 如果存在多个病灶且彼此之间的距离并非均≥ 3 cm,则患者将被视为不合格。
- 允许先前的全身治疗,尽管已经使用 BRAF 抑制剂(至少 7 天)的患者需要适当的洗脱。
- 对于目前正在接受积极的全身性癌症治疗的受试者,应咨询治疗肿瘤内科医师以确保在 SRS 之前有适当的清除期(如果适用)。
- 患者必须年满 18 岁。
- 卡诺夫斯基绩效状态 (KPS) ≥ 60。
- 能够提供知情同意并签署了符合联邦和机构指南的批准同意书。
- 有生育能力的妇女必须在研究登记后 10 天内进行阴性妊娠试验,并且必须同意在接受放射治疗时和放射治疗后 3 个月内使用可接受的避孕方法。 如果无生育能力的女性手术绝育或绝经超过 1 年,则可以包括在内。
- 能够生育孩子的男性必须同意在接受放射治疗时以及放射治疗后 3 个月内使用可接受的节育方法。
排除标准:
- 先前的全脑/部分脑照射。
- 在咨询/筛选协议资格时,MRI 成像中等效直径 > 40 毫米的脑部病变。
- 位于不能修正 SRS 的解剖区域的病变(例如,视神经)
- 位于脑干的脑部病变。
- 软脑膜病的放射学或细胞学证据
- 具有放射敏感性组织学的原发性病变包括:小细胞癌、生殖细胞瘤、淋巴瘤、白血病或多发性骨髓瘤
- 怀孕或哺乳的育龄妇女
- 具有多处病变的患者,根据大小标准将被纳入一个队列,该队列在入组时已满,并且尚未达到 12 周的 DLT 期。
学习计划
研究是如何设计的?
设计细节
- 主要用途:治疗
- 分配:不适用
- 介入模型:单组作业
- 屏蔽:无(打开标签)
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
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实验性的:立体定向放射外科
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有 1 至 5 个脑转移的患者将接受治疗。 根据脑部病变的大小,患者将被分配到四个队列之一。 对于每位患者,将以实验剂量水平治疗单个病灶,其他转移(如果存在)将接受标准 SRS 剂量。 剂量水平 1 剂量水平 2 剂量水平 3 剂量水平 4 队列 1a 和 1a 扩展(从剂量水平 3 开始) 直径:≤ 10 mm 体积:≤ 0.5236 cm3 26 Gy 28 Gy 30 Gy n/a 队列 1b 直径:11-20毫米体积:0.5237-4.1888 cm3 26 Gy 28 Gy 30 Gy n/a *队列 2 直径:21-30 mm 体积:4.1889-14.1372 立方厘米 20 戈瑞 22 戈瑞 24 戈瑞 不适用 **队列 3 直径:31-40 毫米体积:14.1373-33.5103 立方厘米 17 戈瑞 19 戈瑞 21 戈瑞 23 戈瑞 剂量递增 非标准的 5+4 设计将用于剂量递增。 对于每个队列,初始组的 5 名患者将在剂量水平 1 下累积,并接受针对其中一个病变的实验性治疗。
其他名称:
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研究衡量的是什么?
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
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Maximum Tolerated Dose of stereotactic radiosurgery
大体时间:Maximum Tolerated Dose of stereotactic radiosurgery will be evaluated throughout the treatment period which is expected to last 12-16 weeks per patient
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To determine the maximum tolerated dose (MTD) of stereotactic radiosurgery (SRS) treatment for patients in the Escalation Cohort (with 1 to 5 brain metastases, who have not received prior whole brain radiotherapy) and patients in the Expansion Cohort (with up to 5 metastases per patient). Maximum Tolerated Dose of stereotactic radiosurgery will be evaluated throughout the treatment period which is expected to last 12-16 weeks per patient Patients will be evaluated for any grade 3 or greater toxicities attributed to the lesion treated with the escalated dose. |
Maximum Tolerated Dose of stereotactic radiosurgery will be evaluated throughout the treatment period which is expected to last 12-16 weeks per patient
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Frequency of Adverse Events (AEs)
大体时间:up to 16 weeks
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up to 16 weeks
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up to 16 weeks
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次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
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Frequency of immediate, acute, and chronic central nervous system (CNS) toxicities
大体时间:up to18 months following SRS
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To assess the immediate, acute, and chronic central nervous system (CNS) toxicities of single fraction external beam irradiation at increased doses to brain metastases.
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up to18 months following SRS
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Response of the treated lesion(s)
大体时间:up to 16 weeks
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To evaluate the response of the treated lesion(s) by volume assessment.
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up to 16 weeks
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Distant brain failures outside of the treated site
大体时间:up to 16 weeks
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To evaluate distant brain failures outside of the treated site.
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up to 16 weeks
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Overall Survival
大体时间:up to18 months following SRS
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To evaluate overall survival of patients for 18 months following SRS.
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up to18 months following SRS
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合作者和调查者
调查人员
- 首席研究员:Lindsay Burt, MD、Huntsman Cancer Institute/ University of Utah
出版物和有用的链接
一般刊物
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- Patchell RA, Tibbs PA, Walsh JW, Dempsey RJ, Maruyama Y, Kryscio RJ, Markesbery WR, Macdonald JS, Young B. A randomized trial of surgery in the treatment of single metastases to the brain. N Engl J Med. 1990 Feb 22;322(8):494-500. doi: 10.1056/NEJM199002223220802.
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- CDC.gov, 2013
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研究记录日期
研究主要日期
学习开始 (实际的)
初级完成 (估计的)
研究完成 (估计的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (估计的)
研究记录更新
最后更新发布 (实际的)
上次提交的符合 QC 标准的更新
最后验证
更多信息
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