Pimo Study: Extracellular Vesicle-based Liquid Biopsy to Detect Hypoxia in Tumours
研究概览
详细说明
Aim: To analyse tiny cancer cell fragments called extracellular vesicles isolated from blood samples for their ability to identify patients with tumours that are relatively oxygen-starved and expected to be resistant to ionising radiation and many chemotherapy drugs.
Participants: 16 patients with proven cancer plus 4 healthy volunteers who give written informed consent to participate will be included in the study.
Recruitment: Eligible patients will be identified in the Outpatient Department at The Royal Marsden in Sutton or London and given a copy of the Information Sheet describing the study in detail. Dr Somaiah's team will call these potential volunteers at least 24 hours after they have received written information about the study to answer any questions. The same consent process will be followed for staff members who agree to participate as healthy volunteers. Research subjects who offer verbal agreement to participate will be asked for written consent and will be allocated a study ID. This will be used on all trial documentation and blood samples together with their initials and date of data/sample collection.
Pimonidazole administration: This well-established drug has the valuable property of binding exclusively to oxygen- starved tissues in a form that can be detected as a colour change in cell fragments released into the blood stream. A single oral dose of pimonidazole 500 mg/m2 will be prescribed and administered in a Royal Marsden outpatient clinic after confirmation of eligibility and completion of written informed consent. A member of the research team will monitor subjects to ensure that the prescribed drug is successfully taken (swallowed with water) before leaving the hospital (or going back to work/home in the case of healthy volunteers).
Blood sample: A peripheral venous blood sample of 20 ml will be collected from each participant the day after administration of pimonidazole, since it takes several hours for the drug to be absorbed and to bind to proteins and other molecules in oxygen-starved cells. A second sample will be collected 14 ±5 days later in order to confirm that all coloured cell fragments have disappeared from the circulation.
研究类型
注册 (实际的)
阶段
- 不适用
联系人和位置
学习地点
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Surrey
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Sutton、Surrey、英国、SM2 5PT
- The Royal Marsden NHS Foundation Trust
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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
有资格学习的性别
描述
Inclusion Criteria:
Patients i) Age ≥18 years ii) Biopsy-proven invasive carcinomas of head and neck, lung, bladder, uterine cervix or breast iii) Bulky (≥4 cm or ≥ 30 cc) primary/locally recurrent tumour or regional node masses iv) No clinical evidence of distant metastases unless oligometastases (ie distant relapse in only a limited number of regions for which local ablative therapy could be curative) v) Patient due for surgery, radiotherapy, systemic therapy or no anti-cancer treatment vi) Written informed consent
Healthy volunteers i) Age ≥18 years ii) Written informed consent
Exclusion Criteria:
Patients i) Inadequate cognitive ability to undertake the appropriate informed consent procedure
Healthy volunteers i) Past history of cancer, apart from non-melanomatous skin cancer or in situ carcinoma uterine cervix
学习计划
研究是如何设计的?
设计细节
- 主要用途:基础科学
- 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:Hypoxia marker
Administration of a single dose of the hypoxia marker Pimonidazole
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Single oral dose of pimonidazole 500 mg/m2
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 |
---|---|---|
Detectable pimonidazole staining
大体时间:24 hours and 2 weeks (+/- 5 days)
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Number of cancer patients with detectable pimonidazole staining in extracellular vesicles isolated from blood samples after a single dose of pimonidazole
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24 hours and 2 weeks (+/- 5 days)
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合作者和调查者
调查人员
- 首席研究员:Navita Somaiah、Institute of Cancer Research, United Kingdom
研究记录日期
研究主要日期
学习开始 (实际的)
初级完成 (实际的)
研究完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (实际的)
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
此信息直接从 clinicaltrials.gov 网站检索,没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求,请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改,我们的网站上也会自动更新.
Hypoxia marker的临床试验
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Million Marker Wellness, Inc.完全的