- ICH GCP
- 미국 임상 시험 레지스트리
- 임상시험 NCT02112240
Feasibility Study to Develop Sentinel Lymph Node Mapping in Rectal Cancer Patients
Novel Sentinel Lymph Node Mapping Technique in Early Stage Rectal Cancer
The purpose of this study is to see if investigators can develop a technique to identify sentinel lymph nodes in the rectum for rectal cancer patients with the use of a radiotracer (Tc-sulfur colloid), a dye (Spot), and imaging, both pre- and intraoperatively. Eligible patients are those with stage I-III rectal cancer undergoing standard low anterior resection or abdominoperineal resection.
Investigators hypothesize that use of a unique intraoperative lymphatic mapping technique using a mobile gamma camera will identify the sentinel lymph node in patients with rectal cancer with greater than 80% sensitivity.
Subjects will receive injections of the tracer and dye prior to surgery, have preoperative SPECT/CT imaging to be used as a guide to the rectal lymphatic system and then proceed to their scheduled surgery. During surgery, images of the rectum will be taken with a unique mobile gamma camera prior to removal and upon resection.
If surgeons are able to identify the sentinel lymph nodes surrounding the rectal tumor, the hope is to combine this technique with a less invasive surgery called transanal endoscopic microsurgery (TEM) for early stage rectal cancer patients.
연구 개요
상태
정황
연구 유형
단계
- 해당 없음
연락처 및 위치
연구 장소
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Virginia
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Charlottesville, Virginia, 미국, 22908
- University of Virginia
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참여기준
자격 기준
공부할 수 있는 나이
건강한 자원 봉사자를 받아들입니다
연구 대상 성별
설명
Inclusion Criteria:
- Adult patients with stage I,II, or III rectal cancer undergoing standard trans- abdominal low anterior resection or abdominoperineal resection surgery at the University of Virginia
- Willing and able to give written informed consent
Exclusion Criteria:
- Patients less than 18 years of age
- Women who are pregnant and/or breastfeeding
- Prisoners
- Unable to give written informed consent
- Participants with medical contradictions or have potential problems complying with the requirements of the protocol, in the opinion of the investigator
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
- 주 목적: 특수 증상
- 할당: 해당 없음
- 중재 모델: 단일 그룹 할당
- 마스킹: 없음(오픈 라벨)
무기와 개입
참가자 그룹 / 팔 |
개입 / 치료 |
|---|---|
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실험적: Surgery with pre- and intra-op imaging
Subjects will have a preoperative flexible sigmoidoscopy where they will receive an endoscopic injection of 99mTc-sulfur colloid (up to 0.5 mCi) and 3 to 5 cc of circumferential endoscopic injections of Spot.
A SPECT/CT will be performed prior to surgery to identify lymph nodes in the rectum.
Subjects will proceed to their standard surgery.
Intraoperative mobile gamma camera imaging of the rectum will occur before and after resection in attempt to identify sentinel lymph nodes.
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Intraoperative images will be taken with a unique mobile gamma camera to identify sentinel lymph nodes in the rectum.
Radiotracer injection around the rectal tumor for pre- and intra-operative imaging.
다른 이름들:
Dye injection for tattooing rectal tumor prior to surgical resection.
Flexible sigmoidoscopy prior to surgery to facilitate endoscopic injections of radiotracer and dye.
Preoperative imaging to identify lymph nodes in rectum.
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연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Evaluating the sensitivity of identifying the sentinel lymph node using a unique mobile gamma camera intraoperatively.
기간: At the time of surgery and the time of pathological review, an expected average of 7 days.
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The primary endpoint is the sensitivity of sentinel lymph node (SLN) detection by the technique which will be estimated by the number of SLNs detected by the technique divided by the number noted at surgery or on final pathology review.
90% confidences interval around the estimate will help guide interpretation of the results.
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At the time of surgery and the time of pathological review, an expected average of 7 days.
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2차 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Feasibility
기간: From the time of tracer and dye injections to 30 day postoperative visit
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Descriptive summaries will be used to list any complications that may have occurred pre-, intra- or post-operatively.
Frequency and location of the sentinel lymph node (SLN) with respect to the tumor prior to surgery will be noted.
In addition the location of the SLN in relation to the tumor will be documented during pathologic examination with the pathologist and surgeon to assess the feasibility of excision with transanal endoscopic microsurgery.
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From the time of tracer and dye injections to 30 day postoperative visit
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공동 작업자 및 조사자
수사관
- 수석 연구원: Traci L Hedrick, MD, University of Virginia
연구 기록 날짜
연구 주요 날짜
연구 시작
기본 완료 (예상)
연구 등록 날짜
최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (추정)
연구 기록 업데이트
마지막 업데이트 게시됨 (추정)
QC 기준을 충족하는 마지막 업데이트 제출
마지막으로 확인됨
추가 정보
이 정보는 변경 없이 clinicaltrials.gov 웹사이트에서 직접 가져온 것입니다. 귀하의 연구 세부 정보를 변경, 제거 또는 업데이트하도록 요청하는 경우 register@clinicaltrials.gov. 문의하십시오. 변경 사항이 clinicaltrials.gov에 구현되는 즉시 저희 웹사이트에도 자동으로 업데이트됩니다. .
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