Radioactive Stents for Brachytherapy of Esophageal Cancers

用于食管癌近距离治疗的放射性支架

基本信息

批准号：
8834929
负责人：
YONGREN Benjamin PENG
金额：
$ 80.23万
依托单位：
XL SCI-TECH, INC.
依托单位国家：
美国
项目类别：
财政年份：
2015
资助国家：
美国
起止时间：
2015-05-05 至 2017-04-30
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/8834929
关键词：
Algorithms Aorta Biomechanics Brachytherapy Brachytherapy Seeds Calibration Cancer Patient China Clinical Clinical assessments Collaborations Country Deglutition Disorders Detection Development Device Safety Devices Dimensions Dose Drug or chemical Tissue Distribution Early Diagnosis Encapsulated Esophageal Esophageal Neoplasms Evaluation Extravasation FDA approved Far East Feasibility Studies Fostering Gel Glass Goals Health Heating Investigation Korea Laboratories Malignant neoplasm of esophagus Manufacturer Name Measurement Measures Medical Imaging Metals Methods Microspheres Operative Surgical Procedures Organ PET/CT scan Palladium 103 Palliative Care Patients Phase Pilot Projects Polymers Printing Process Production Progression-Free Survivals Prostate Radiation Radioactive Radioactivity Radioisotopes Reporting Research Research Personnel Risk Assessment Safety Seeds Silicones Solid Source Specialist Spottings Staging Stents Surface Time Tissues Travel Treatment Efficacy Tumor Tissue Work base biomaterial compatibility cancer therapy dosimetry experience improved in vivo innovation member palliative screening seal simulation soft tissue tumor

项目摘要

DESCRIPTION (provided by applicant): Current practice in the USA for inoperable esophageal cancer is a palliative treatment using metal stent for end-stage cancer patients. Outside the USA (especially in far east countries including China and Korea), there have been reported clinical benefits of attaching sealed sources such as prostate seeds to the outside of an esophageal stent. Although simple and preliminary, such radioisotope sources had doubled the mean survival period with high statistical confidence. The investigators have demonstrated the feasibility of an advanced radioactive esophageal stents that will maximize dose to the tumors and significantly shorten the dose delivery time to more quickly achieve maximized clinical benefits. A broader collaboration has been established among stent manufacturer, surgical experts, leading dosimetrist, and regulatory professionals for the development of radioactive esophageal stents. The ultimate goal is to improve treatment efficacy by matching radiation dose distribution to tumor distribution. The specific aims include (1) device safety demonstration of radioactive esophageal stents; (2) obtaining 510(k) FDA clearance. The Phase II research will begin with in vivo biocompatibility assessment and end with preliminary clinical assessment using the proposed advanced radioactive esophageal stents.

描述（由申请人提供）：美国目前对于无法手术的食管癌的做法是使用金属支架对终末期癌症患者进行姑息治疗。在美国以外（特别是在包括中国和韩国在内的远东国家），已有报道称将前列腺种子等密封源附着在食管支架外部具有临床益处。虽然简单且初步，但这种放射性同位素源使平均生存期延长了一倍，具有很高的统计可信度。研究人员已经证明了先进放射性食管支架的可行性，该支架将最大限度地增加肿瘤剂量并显着缩短剂量输送时间，从而更快地实现最大的临床效益。支架制造商、外科专家、领先的剂量师和监管专业人员之间已经建立了更广泛的合作，以开发放射性食管支架。最终目标是通过将放射剂量分布与肿瘤分布相匹配来提高治疗效果。具体目标包括（1）放射性食管支架的装置安全性演示； (2) 获得 FDA 510(k) 许可。二期研究将从体内生物相容性评估开始，并以使用拟议的先进放射性食管支架进行初步临床评估结束。