A Randomized Trial Evaluating Rapid Delivery of Dose Escalated Hypofractionated Radiotherapy for Patients Diagnosed With Bone Metastases for Effective Palliation of Symptoms
试验速览
- 阶段
- 2 期
- 状态
- 已完成
- 入组人数
- 167
- 试验地点
- 6
- 主要终点
- Number of Intent- to- Treat Patients With Pain Response by Treatment
研究概览
简要总结
The goal of this clinical research study is to learn if 1 large dose of radiation therapy is better at controlling pain from cancer that has spread to the bones than 10 smaller doses of radiation. Researchers also want to learn if 1 large dose of radiation therapy can help decrease the use of drugs to control the pain, and if it can help to control the disease.
详细描述
Study Groups:
If you are found to be eligible to take part in this study, you will be randomly assigned (as in the flip of a coin) to 1 of 2 study groups. This is done because no one knows if one study group is better, the same, or worse than the other group. You will have an equal chance of being assigned to either group.
If you are in Group 1, you will receive 1 radiation treatment a day for 10 days in a row (not counting weekends or holidays). You will receive a higher total dose of radiation than Group 2.
If you are in Group 2, you will receive 1 radiation treatment given on 1 day.
Radiation Therapy:
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Patients with a pathologic diagnosis of malignancy
- •Patients with any radiographic evidence of bone metastases, including plain x-ray, bone scan, computed tomography (CT) scan, magnetic resonance imaging (MRI), or positron emission tomography (PET) scan
- •Patients with pain or dysaesthesia
- •Patients with a life expectancy of more than 3 months
- •Patients able to complete pain assessment and quality of life surveys
- •Patients with multiple osseous sites are eligible; however should not treat more than 3 separate radiation treatment fields concurrently.
- •Patients with surgery for osseous metastases are allowed.
排除标准
- •Patients with prior radiation therapy to the treatment site
- •Patients with a current, untreated spinal cord compression
- •Patients with a radiographic or pathologic fracture to the treatment site
- •Patients with painful metastases to hands and feet that need to be radiated on protocol
- •Patients previously treated with radioactive isotope (e.g. Sr89) within 30 days of randomization
结局指标
主要结局
Number of Intent- to- Treat Patients With Pain Response by Treatment
时间窗: From date of registration until the date of first documented Pain failure or death from any cause, or lost to follow up, whichever came first, assessed up to 9 months
Evaluate single fraction stereotactic regimen for pain response in terms of time to failure. Pain response was defined by international consensus criteria as a combination of pain score and analgesic use (daily morphine-equivalent dose). Pain failure (ie, lack of response) was defined as worsening pain score (2 points on a 0-to-10 scale), an increase in morphine-equivalent opioid dose of 50% or more, reirradiation, or pathologic fracture. Time to failure was defined as the first occurrence of any of the following events: worsening in pain score by at least 2 categories by MDASI survey. Statistical tests in treatment group were based on the Wilcoxon rank sum test to compare changes in pain scores and analgesic use at each assessment point relative to baseline. Increases or decreases of 2 or more points on a scale of 0 to 10 indicated improving or worsening pain. Fisher exact tests were used to compare the distribution of pain responders (CR + PR) and nonresponders (PP + IR).
Number of Evaluable Participants With Pain Response by Treatment
时间窗: From date of registration until the date of first documented Pain failure or death from any cause, or lost to follow up, whichever came first, assessed up to 9 months
Evaluate single fraction stereotactic regimen for pain response in terms of time to failure. Pain response was defined by international consensus criteria as a combination of pain score and analgesic use (daily morphine-equivalent dose). Pain failure (ie, lack of response) was defined as worsening pain score (2 points on a 0-to-10 scale), an increase in morphine-equivalent opioid dose of 50% or more, reirradiation, or pathologic fracture. Time to failure was defined as the first occurrence of any of the following events: worsening in pain score by at least 2 categories by MDASI survey. Complete response (CR) is a pain score of 0 at the treated site and no increase in analgesic. Partial response (PR): reduction in pain score of 2 or more points above baseline with no increase in analgesic. Pain progression (PP): Increases of 2 or more points on a scale of 0 to 10 or worsening pain. indeterminate response (IR): were all other responses.
次要结局
- Number of Participants With Toxicity Associated With Treatment(From date of registration until the date of documented death from any cause, or lost to follow up, whichever came first, assessed up to 2 years.)