Randomized Feasibility Study of Stereotactic Body Radiotherapy (SBRT) for Localized Prostate Cancer: Cyberknife vs. Volume Modulated Arc Therapy
试验速览
- 阶段
- 2 期
- 发起方
- 入组人数
- 40
- 主要终点
- Patient acceptability of a randomized trial comparing Cyberknife and Volume Modulated Arc Therapy (VMAT) based SBRT techniques for the treatment of localized prostate cancer as measured by number of patients willing to participate in randomized trial.
研究概览
简要总结
Recent studies support the use of Stereotactic Body Radiation Therapy (SBRT) for the treatment of localized prostate cancer (PrCa). SBRT is a way to deliver radiation very precisely allowing higher doses to be delivered with fewer treatments, potentially improving patient outcomes. Cyberknife and Volume Modulated Arc Therapy (VMAT) are accepted SBRT techniques. However, the effects of the specific SBRT treatment technique on patient outcomes have not been evaluated in randomized trials.
Although such a trial would be of great interest, patients' willingness to participate is unclear. Multiple patient and clinician factors contribute to the decision to enter a randomized trial. This feasibility study will evaluate patients' willingness to participate in a trial comparing Cyberknife and VMAT SBRT for the treatment of early stage PrCa. Patients accepting enrolment will be randomized to one of the two types of SBRT delivery. Up to 66 patients will be approached, and up to 40 randomized. A questionnaire will help to identify the factors influencing the patient's decision to participate or not. This study will gather information on feasibility, PSA control, patient outcomes and side effects, and will inform the design of a future randomized phase II/III study.
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
- Male
- 接受健康志愿者
- 是
入选标准
- •Histologically confirmed diagnosis of adenocarcinoma of the prostate
- •Histological evaluation of prostate biopsy with assignment of a Gleason score to the biopsy material; Gleason scores ≤ 7
- •Clinical stage T1-2b (AJCC 7th edition)
- •PSA ≤ 10 ng/mL. PSA should not be obtained within 10 days after prostate biopsy.
- •ECOG Performance Status 0-1
排除标准
- •Prior or concurrent invasive malignancy (except non-melanomatous skin cancer) or lymphomatous/hematogenous malignancy unless continually disease free for a minimum of 5 years.
- •Evidence of distant metastases
- •Regional lymph node involvement
- •Previous radical surgery (prostatectomy), cryosurgery, or HIFU for prostate cancer. Previous pelvic irradiation, prostate brachytherapy, or bilateral orchiectomy
- •Previous hormonal therapy, such as LHRH agonists or LHRH antagonists, anti-androgens, estrogens, or surgical castration
- •Use of finasteride or dutasteride within 30 days prior to registration. PSA should not be obtained prior to 30 days after stopping finasteride or dutasteride.
- •Previous or concurrent cytotoxic chemotherapy for prostate cancer
- •Age < 18
- •Patient unable to provide study-specific informed consent
- •Inability to complete the Expanded Prostate Cancer Index Composite (EPIC) questionnaire
结局指标
主要结局
Patient acceptability of a randomized trial comparing Cyberknife and Volume Modulated Arc Therapy (VMAT) based SBRT techniques for the treatment of localized prostate cancer as measured by number of patients willing to participate in randomized trial.
时间窗: 15 months
次要结局
未报告次要终点
研究者
Dr. Himu Lukka
Professor
Juravinski Cancer Center