Endoscopic Resection for Small Rectal Neuroendocrine Tumors
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: mEMR-C procedure, mEMR-L procedure.
- Who it may be relevant to
- Registry conditions: Rectal Neuroendocrine Tumor. Basic parameters: 18 years — 80 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Center list to be confirmed — check the primary protocol.
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
Unsure about the terms? Read our patient guide →
Official title
Modified Cap-assisted Endoscopic Mucosal Resection and Modified Endoscopic Mucosal Resection with a Ligation Device for Small Rectal Neuroendocrine Tumors Less Than 1 Cm: a Muticenter Randomized Noninferiority Trial
Overview
According to clinical practice and relevant retrospective research data, both modified cap-assisted endoscopic mucosal resection (mEMR-C) and endoscopic mucosal resection with a ligation device(ESMR-L) were reported to be effective for the treatment of small rectal neuroendocrine tumors (NETs) . However, there is a lack of multicenter prospective studies to evaluate the advantages and disadvantages of mEMR-C and mEMR-L. mEMR-C is the modified ESMR-L without submucosal injection.
Detailed description
We aimed to conduct a muticenter randomized controlled trial to compare mEMR-C with mEMR-L for the treatment of small rectal neuroendocrine tumors (NETs) in ten tertiary hospitals in China.
Interventions
- Procedure mEMR-C procedure
A transparent cap with an inner groove (MH-593; Olympus, Tokyo, Japan) was attached to the forward-viewing colonoscope. After the endoscope was inserted into the rectum, a crescent-shaped electrosurgical snare was passed through the sheath and looped along the inner groove of the cap. Submucosal injections were not required in this method. The tumor was suctioned into the cap and grasped by tightening the snare. After confirming the appropriate snare placement, both the tumor and overlying mucos - Procedure mEMR-L procedure
First, install the ligation device (provided by Jiangsu Gerrit) at the front end of the endoscope. After inserting the endoscope into the rectum, suck the lesion into the ligation device, release the ligator to ligate the lesion. Then, use a snare to resect the lesion below the ligator. Finally, uniformly suture the wound surface with metal clips.
Primary outcome measures
- histological complete resection [Time frame: within 14 days after procedure]
Secondary outcome measures (8)
- success rate of operation [Time frame: intraoperative]
- en bloc resection [Time frame: intraoperative]
- operation time [Time frame: intraoperative]
- complications [Time frame: within 14 days after procedure]
- length of stay [Time frame: within 14 days after procedure]
- hospitalization cost [Time frame: within 14 days after procedure]
- operation cost [Time frame: within 14 days after procedure]
- histopathologic grade [Time frame: within 14 days after procedure]
Eligibility criteria
Inclusion criteria
- Age from 18 to 80 years;
- With a high suspicion or evidence of rectal NET assessed using EUS or colonoscopy;
- With tumor size ≤10 mm assessed by colonoscopy;
- Plan to receive mEMR-C or mEMR-L treatment and provide written informed consent;
Exclusion criteria
- Unable to tolerate mEMR-L or mEMR-C as assessed by the research team of each center;
- Complicated with serious diseases such as malignant tumor, which may lead to shorter life expectancy, the research team considers that it is not suitable for inclusion in the study after comprehensive evaluation;
- Rectal NET with lymph node metastasis or distant metastasis;
- Received resection of rectal neuroendocrine tumor by other surgical procedures;
- Multiple rectal neuroendocrine tumors;
- Vulnerable groups such as pregnant women or patients with mental disorders;
- Poor compliance, unable to cooperate with treatment.
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Allocation
- Randomized
- Model
- Parallel assignment
- Masking
- Open label
- Primary purpose
- Treatment
Study locations
Center list to be confirmed — check the primary protocol.
Identifiers
NCT: NCT06901856 · KY2025-063-02