Prospective Evaluation of CyberKnife® as Monotherapy or Boost Stereotactic Body Radiotherapy for Intermediate or High Risk Localized Prostate Cancer
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 83
- 试验地点
- 1
- 主要终点
- Biochemical Disease-Free Survival (bDFS), Using Phoenix and ASTRO Definitions
研究概览
简要总结
The primary objective of this study is to document the effectiveness of Cyberknife stereotactic body radiotherapy (SBRT) in the treatment of intermediate and high-risk localized prostate cancer defined by biochemical Disease-Free Survival (bDFS), using Phoenix and American Society of Therapeutic Radiation and Oncology (ASTRO) definitions, at 5 years.
During the prostate-specific antigen era, an ever-increasing percentage of men with prostate cancer have presented with clinically localized, potentially curable disease. Although conventional treatment options are potentially curative in selected patients, these treatments also have drawbacks, including the risk of negative long-term quality of life consequences and serious complications.
The CyberKnife® system is a type of radiation machine that uses a special system to precisely focus large doses of x-rays on the tumor. The device is designed to concentrate large doses of radiation onto the tumor so that injury from radiation to the nearby normal tissue will be minimal.
Intermediate risk patients will be treated with either CyberKnife® Stereotactic Body Radiation Therapy (SBRT) monotherapy or CyberKnife® SBRT boost followed by Intensity Modulated Radiation Therapy (IMRT). High risk patients will be treated with CyberKnife® SBRT boost followed by IMRT. Treatment will last 4-7 days. Patients will complete the QOL questionnaires before treatment. Questionnaires will also be completed during follow-up visits at 1, 3 , 6, 12, 18, 24, 30 and 36 months then every 12 months until year 5.
详细描述
The purpose of this project is to evaluate the efficacy and Health-Related Quality of Life (HRQOL) in intermediate and high-risk prostate cancer patients treated with SBRT as monotherapy or as a boost in combination with IMRT.
研究设计
- 研究类型
- Interventional
- 分配方式
- Non 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
- Male
- 接受健康志愿者
- 否
入选标准
- •Patient must be ≥ 18 years of age.
- •Histologically proven prostate adenocarcinoma
- •Gleason score 2-10 (reviewed by reference lab)
- •Biopsy within one year of date of registration
- •Clinical stage T1b-T4, N0-Nx, M0-Mx (AJCC 7th Edition)
- •T-stage and N-stage determined by physical exam and available imaging studies (ultrasound, CT, and/or MRI; see section 4.5)
- •M-stage determined by physical exam, CT or MRI. Bone scan not required unless clinical findings suggest possible osseous metastases.
- •PSA ≤ 50 ng/ml, CBC, platelets, BUN, creatinine prior to treatment
- •Patients belonging in one of the following risk groups:
- •Intermediate: CS T2b-c and Gleason <6 and PSA ≤ 10, or CS T1b-T2b, and Gleason 7 and PSA ≤ 10 ng/ml, or Gleason <6 and PSA 11-20 ng/ml
- •High: CS T3-4, Gleason score >7and PSA<50
- •Prostate volume: ≤ 100 cc
- •Determined using: volume = π/6 x length x height x width
- •Measurement from MRI, CT or ultrasound prior to registration.
- •ECOG performance status 0-1
- •No prior prostatectomy or cryotherapy of the prostate
- •No prior radiotherapy to the prostate or lower pelvis
- •No implanted hardware or other material that would prohibit appropriate treatment planning or treatment delivery, in the investigator's opinion.
- •No chemotherapy for a malignancy in the last 5 years.
- •No history of an invasive malignancy (other than this prostate cancer, or basal or squamous skin cancers) in the last 5 years.
排除标准
- 未提供
研究组 & 干预措施
Intermediate Risk
Short term (4-6 months) androgen deprivation therapy (ADT) per current standard of care + CyberKnife 21 Gy (7 Gy x 3) and Prostate/SV Intensity Modulated radiation therapy (IMRT) 45-50.4 Gy
OR
Short term (4-6 months)androgen deprivation therapy + CyberKnife 36.35 Gray (7.27 Gray x 5)
干预措施: CyberKnife (Radiation)
Intermediate Risk
Short term (4-6 months) androgen deprivation therapy (ADT) per current standard of care + CyberKnife 21 Gy (7 Gy x 3) and Prostate/SV Intensity Modulated radiation therapy (IMRT) 45-50.4 Gy
OR
Short term (4-6 months)androgen deprivation therapy + CyberKnife 36.35 Gray (7.27 Gray x 5)
干预措施: Androgen Deprivation Therapy (ADT) (Other)
Intermediate Risk
Short term (4-6 months) androgen deprivation therapy (ADT) per current standard of care + CyberKnife 21 Gy (7 Gy x 3) and Prostate/SV Intensity Modulated radiation therapy (IMRT) 45-50.4 Gy
OR
Short term (4-6 months)androgen deprivation therapy + CyberKnife 36.35 Gray (7.27 Gray x 5)
干预措施: Intensity Modulated radiation therapy (IMRT) (Radiation)
High Risk
Short or Long term (6 months - 3 years) androgen deprivation therapy (ADT) + 45-50.4 Gy and Pelvis Intensity Modulated radiation therapy (IMRT) per current standard of care + 21 Gy (7 Gy x 3) CyberKnife boost
干预措施: CyberKnife (Radiation)
High Risk
Short or Long term (6 months - 3 years) androgen deprivation therapy (ADT) + 45-50.4 Gy and Pelvis Intensity Modulated radiation therapy (IMRT) per current standard of care + 21 Gy (7 Gy x 3) CyberKnife boost
干预措施: Androgen Deprivation Therapy (ADT) (Other)
High Risk
Short or Long term (6 months - 3 years) androgen deprivation therapy (ADT) + 45-50.4 Gy and Pelvis Intensity Modulated radiation therapy (IMRT) per current standard of care + 21 Gy (7 Gy x 3) CyberKnife boost
干预措施: Intensity Modulated radiation therapy (IMRT) (Radiation)
结局指标
主要结局
Biochemical Disease-Free Survival (bDFS), Using Phoenix and ASTRO Definitions
时间窗: 3 years
Phoenix definition: Biochemical recurrence of prostate cancer (PCa) after curative radiotherapy defined as a prostate-specific antigen (PSA) rise of ≥2 ng/ml above the nadir. Astro definition: Biochemical failure in prostate cancer defined as three consecutive rises in prostate-specific antigen (PSA) after a nadir.
次要结局
- Measure the Rates of Acute and Late Grade 3-5 Gastrointestinal and Genitourinary Toxicity(3 years)
- Expanded Prostate Cancer Index Composite Epic-26(3 years)