NCT07242820Not yet recruiting
Reducing Neoplasia Recurrence After Non-thermal Endoscopic Resection of Large Colorectal Polyps
Source: ClinicalTrials.gov · Last updated 14 Aug 2026
Brief summary (registry, in English)
The goal of this clinical trial is to clarify the role of adjuvant thermal ablation for non-thermal endoscopic mucosal resection (EMR) of large (≥20mm) flat colorectal polyps (so-called laterally spreading lesions \[LSLs\]). The hypothesis is that adding adjuvant thermal ablation to non-thermal EMR (vs no ablation) will result in lower lesion recurrence rates at 6-month follow-up, and non-inferior adverse events (AE) rates 14 days post EMR. For participants with planned EMR, endoscopists will perform non-thermal EMRs as per standard of care and: * adjuvant thermal ablation will either not be performed (control group), or will be applied to the base and outside margins of the resection site (experimental group); * then, all patients will be contacted 14-44 days after EMR, to verbally ascertain the occurrence of AEs; * then, all patients will undergo a first follow-up colonoscopy at 6 months after initial conoloscopy to assess lesion recurrence; * finally, all patients will undergo a second and final colonoscopy 18 months after EMR.
- Status (registry)
- Not yet recruiting
- Study type
- Interventional
- Enrollment
- 752 (estimated)
- First submitted
- 17 Nov 2025
- Start date
- Dec 2026
- Primary completion date
- May 2031
- Lead sponsor
- Centre hospitalier de l'Université de Montréal (CHUM)
- Diseases
- Colorectal cancer
- NCT number
- NCT07242820
What you commit to
- Study type: Interventional
- Planned participants: 752
- From Dec 2026 to the primary completion date, May 2031
- 1 site in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Other illness
- Inflammatory bowel disease
Lab values
- Coagulopathy or thrombocytopenia (international normalized ration ≥1.5 or platelets \<50\*10\^9/L)
Other
- Non-elective colonoscopy
- Poor general health (American Society of Anesthesiologists classification \>III)
- Bulky lesions (granular mixed with ≥10mm module).
Who the study is looking for
- Adult patients
- Undergoing EMR for large (≥20 mm) colorectal LSL
- Providing written and informed consent for study participation
Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers
Sites (1)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Centre Hospitalier de l'Université de Montréal Coordinator of this site? Confirm its status | Montreal | Canada | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.