A Single Center Pilot Study of CryoSpray Ablation(TM) to Determine Safety and Feasibility in Radiation Induced Proctitis (CSA LGI-2)
试验速览
- 阶段
- 4 期
- 状态
- 撤回
- 主要终点
- The primary endpoints for this study are patient safety, treatment efficacy, and feasibility of cryospray therapy in subjects with radiation proctitis.
研究概览
简要总结
The purpose of this study is to evaluate the safety, feasibility, tissue response, and subject side effects of liquid nitrogen sprayed through a catheter (CryoSpray AblationTM, "CSA" or "cryospray therapy") via endoscope in subjects with radiation induced proctitis.
详细描述
The proposed study is a single center, ten patient pilot study to evaluate the safety and feasibility of sprayed liquid nitrogen through a catheter via endoscope in subjects with radiation proctitis. There will be two groups. Subjects in Group 1 will receive a cryospray applied to healthy tissue for 10 seconds. The cryospray will be repeated four (4) times in sequential fashion for a total of 40 seconds of cryospray therapy. Subjects in Group 2 will receive a cryospray applied to healthy tissue for 20 seconds. The cryospray will be repeated two (2) times in sequential fashion for a total of 40 seconds of cryospray therapy.
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
- All
- 接受健康志愿者
- 否
入选标准
- •Age 18 years of age
- •Have radiation induced proctitis
排除标准
- •Pregnant or nursing
- •Planning to become pregnant during the course of the study
- •Planning to sire a child while enrolled in the study
- •Known history of unresolved drug or alcohol dependency that would limit ability to comprehend or follow instructions related to informed consent, post-treatment instructions, or follow-up guidelines.
- •Subject has prior or concurrent ablation therapy including, but not limited to, photodynamic therapy, multipolar electro coagulation, argon plasma coagulation, laser treatment, radio frequency, etc
- •Refusal or inability to give consent.
- •Concurrent chemotherapy.
- •Medical contraindication or potential problem that would preclude study participation
- •Concurrent participation in other experimental studies
- •Uncontrolled coagulopathy or bleeding diathesis
- •Portal hypertension due to cirrhosis manifest by esophageal, gastric or rectal varices
结局指标
主要结局
The primary endpoints for this study are patient safety, treatment efficacy, and feasibility of cryospray therapy in subjects with radiation proctitis.
时间窗: End of Study
次要结局
- The secondary endpoints for the study are the cataloging of side effects, and tissue response as determined by endoscopic visual evaluation.(End of Study)