Magnetic Resonance Guided High Intensity Focused Ultrasound (MRgHIFU) for Pain Palliation of Bone Metastases
试验速览
- 阶段
- 不适用
- 状态
- 撤回
- 发起方
- 试验地点
- 2
- 主要终点
- Measure the ablated tissue volume indicated by immediate post-treatment Gd-T1W imaging in responders and non-responders.
研究概览
简要总结
The primary objective of this study is to determine whether intra- and post-procedural MR changes are indicative of reduction in pain symptom scores. The trial will recruit a cohort of patients with painful bone metastases, who wish to consider MRgHIFU treatment. These patients will be identified in conjunction with the pain and palliative care teams, as well as clinical and medical oncologists. Patients will undergo MRgHIFU treatment using scanning and treatment planning methods that have been established in the patients treated within the multi-centre study. The treatment response rate for the cohort will be recorded. Intra- and post-procedural imaging metrics will be evaluated for their ability to detect tissue changes, which may be indicative of response. Patients will be followed-up for up to 90 days after treatment, and will attend for repeat imaging and pain review at days 30, 60 and 90 after treatment. Any changes in imaging metrics will be compared between responders and non-responders.
详细描述
The primary aim of this study is to investigate whether the ablated tissue volume indicated by immediate post-treatment Gd-T1W imaging is indicative of reduction in pain scores (response) 30 days after treatment.
The secondary aims of this study are:
- To record the proportion of patients responding to MRgHIFU treatment at Days 7, 14, 30, 60 and 90 after treatment
- To investigate whether intra-procedural PRFS metrics (thermal dose volume, temperature) are indicative of subsequent treatment response
- To investigate whether intra- or post-procedural changes in ADC or T2 are indicative of subsequent treatment response
- To record adverse events arising as a result of MRgHIFU treatment
- To evaluate the effect of MRgHIFU treatment on patients' quality of life
- To record the time to pain progression and the duration of pain response for patients in this cohort
- To estimate the costs of MRgHIFU treatment
This is an exploratory study, which will recruit n=15 patients into one single cohort. Enrolment of the target population for the study is expected to take approximately 2 years. Patients will be eligible for the study if they wish to consider MRgHIFU treatment for pain palliation of a region of bony metastatic disease that is accessible to the MRgHIFU device. After providing their written informed consent to participate in the study, patients' suitability for treatment will be determined by a combined assessment of clinical review by a pain specialist, and an MR screening investigation to establish lesion targetability. Baseline clinical and imaging metrics will be recorded. Patients who fulfill all inclusion criteria, have none of the exclusion criteria, and who give informed consent, will be scheduled for MRgHIFU treatment to the target lesion. Treatment will be delivered under sedation on a day-case basis, according to protocols already established in our prior study. During treatment delivery, the investigators will assess imaging metrics of tissue change, which may be indicative of subsequent treatment response. Treatment would be expected to take approximately 1-2 hours, and after an observation period of approximately 2-4 hours, the patient will be discharged. Before discharge, follow-up instructions will be given to the patient. Patients' clinical and imaging responses to treatment will then be assessed at follow-up appointments up to 3 months after treatment.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 80 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Patients with painful bony metastatic disease
- •Target bony metastatic lesion is painful (NRS≥4)
- •Intended target region accessible for MRgHIFU treatment (usually not skull or spinal metastases above the sacrum)
- •Intended target region visible on non-contrast MR imaging
排除标准
- •MRI contra-indicated (e.g. by incompatible metal implants, claustrophobia, or because BMI precludes accommodation in the MR scanner)
- •Pregnancy
- •Sedation contra-indicated
- •Critical anatomical structure cannot be avoided along the beam path or the at the target (can be assessed at screening)
- •Internal or external fixation device along the beam path or at the target
结局指标
主要结局
Measure the ablated tissue volume indicated by immediate post-treatment Gd-T1W imaging in responders and non-responders.
时间窗: Day 30
次要结局
- To investigate whether ablated tissue volume indicated by Gd-T1W imaging at Day 30 remains stable at Days 60 and 90.(up to 90 days)
- .To investigate whether intra-procedural PRFS metrics are different in responders and non-responders at Day 30(30 days post treatment)
- To investigate whether intra- or post-procedural changes in ADC are different in responders and non-responders.(Day 30)
- The rate of treatment-related adverse events(up to 3 months after treatment.)
- To report the treatment response rate.(up to 90 days)
- To investigate whether intra- or post-procedural changes in T2 are different in responders and non-responders.(Day 30)
- The effect of MRgHIFU treatment on patients' quality of life, recorded using Quality of Life Questionnaires (QLQ's).(up to 3 months after treatment.)
- The costs of MRgHIFU treatment.(up to 3 months after treatment.)
研究者
Nandita deSouza
Professor Nandita Da Souza
Institute of Cancer Research, United Kingdom