Proton Radiation Therapy in Treating Patients With Prostate Cancer
A Phase II Trial of Proton Radiation Therapy of Using Standard Fractionation for Low-and Low-Intermediate Risk Adenocarcinoma of the Prostate
RATIONALE: Specialized radiation therapy that delivers a high dose of radiation directly to the tumor may kill more tumor cells and cause less damage to normal tissue.
PURPOSE: This clinical trial is studying how well proton radiation therapy works in treating patients with prostate cancer.
研究概览
地位
条件
详细说明
Detailed Description
PRIMARY OBJECTIVES:
I. Feasibility of proton radiation therapy (RT) using standard fractionation.
SECONDARY OBJECTIVES:
I. To determine freedom from failure (FFF) (vs. biochemical/clinical progression-free survival) with standard fractionation.
II. To determine the incidence of grade 2 or greater GU and GI toxicity with this regimen at 6 months, 2 years and 3 years.
III. To assess quality of life issues following completion of radiation therapy at 6 months and at 2 years.
IV. To assess incidence of impotence after the use of proton therapy at 3 years.
V. To determine freedom from biochemical failure (BF) at 5 years.
VI. To determine clinical failure: local and/or distant at 5 years. VII. To determine salvage androgen deprivation (SAD) use at 5 years. VIII. To determine progression free survival: using clinical, biochemical and SAD as events at 5 years.
IX. To determine overall survival at 5 years. X. To determine disease-specific survival at 5 years.
XI. Estimate prostate and normal structures movement during RT with the use of scans.
XII. Correlate pathologic and radiologic findings with outcomes at 5 years. XIII. Correlate PSA and free PSA levels with outcomes at 5 years. XIV. Correlate testosterone levels and variation with proton therapy and outcomes at 5 years.
XV. Develop a quality assurance process for proton prostate therapy.
OUTLINE:
Patients undergo proton radiotherapy once daily 5 days a week for approximately 9 weeks in the absence of disease progression or unacceptable toxicity.
After completion of study treatment, patients are followed at 3 months, every 6 months for 5 years, and then annually thereafter.
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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Pennsylvania
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Philadelphia、Pennsylvania、美国、19104
- Abramson Cancer Center of the University of Pennsylvania
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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:
- Histologically confirmed prostate adenocarcinoma within 365 days of registration
- Clinical stages T1a-T2a N0 M0
- For any pelvic lymph node >= 1.5cm, biopsy of the lymph node is mandatory
- Histological evaluation of prostate biopsy with assignment of a Gleason score to the biopsy material; Gleason score must be in the range 2-6; > 6 cores is strongly recommended; the highest Gleason score in any core reported on the pathology report will be used for determining inclusion
- PSA values < 10 ng/ml within 90 days prior to registration, done either prior to prostate biopsy or at least 21 days after prostate biopsy.
- Alkaline phosphatase within 60 days prior to registration. If alkaline phosphatase is elevated > 2 x the upper limit of institutional normal (UNL), patient must have radiological correlation to assess for metastases
- Zubrod status 0-1 documented within 60 days of registration
- Prior androgen deprivation is allowed; however, androgen deprivation will not be continued concurrently or as an adjuvant therapy
- Patients must give IRB-approved study-specific informed consent
- Patients must complete all required tests listed within the specified time frames
- Patients must be able to start treatment within 56 days of registration
- Members of all races and ethnic groups are eligible for this trial
Exclusion Criteria:
- Clinical stages T2c or greater
- PSA of 10 ng/ml or greater
- Gleason score 7 or higher
- Evidence of distant metastasis
- Evidence of lymph node involvement
- Previous prostate cancer surgery to include: prostatectomy, hyperthermia and cryosurgery
- Previous pelvic radiation for prostate cancer
- Androgen deprivation therapy prior to radiation is allowed; however, it is not acceptable if continued during radiation or as adjuvant therapy
- Active rectal diverticulitis, Crohn's disease, or ulcerative colitis are not allowed
- Prior systemic chemotherapy for prostate cancer
- History of proximal urethral stricture requiring dilatation
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：Arm I
Patients undergo proton radiotherapy once daily 5 days a week for approximately 9 weeks in the absence of disease progression or unacceptable toxicity.
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Proton Beam Radiation Therapy
Quality of Life Assessment
Questionnaire Administration
|
研究衡量的是什么？
主要结果指标
结果测量 |
大体时间 |
|---|---|
|
As a feasibility precaution patients will be treated and followed for a minimum of 60 days after completion of radiotherapy to determine feasibility
大体时间：5 years
|
5 years
|
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Acute toxicity as assessed by NCI CTC Version 3.0
大体时间：90 days
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90 days
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次要结果测量
结果测量 |
大体时间 |
|---|---|
|
Late toxicity as assessed by RTOG/EORTC late morbidity scoring system
大体时间：90 days
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90 days
|
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Biochemical/clinical progression-free survival
大体时间：Time from start of radiotherapy to either documented increase in PSA or clinical progression of disease, death due to any cause or last patient contact alive
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Time from start of radiotherapy to either documented increase in PSA or clinical progression of disease, death due to any cause or last patient contact alive
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合作者和调查者
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 (预期的)
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)
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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