Clinical trial · Interventional
Study of Narrow Band Imaging in the Characterization of Residual Neoplasia After Endoscopic Piecemeal Mucosal Resection
Randomised Tandem Colonoscopy of Narrow Band Imaging (NBI) and White Light Endoscopy in Patients With Endoscopic Piecemeal Mucosal Resection
NCT02448693CI-TRIAL-00022003CROMOPIEcompletedN/AClinicalTrials.gov clinicaltrialsProvenance
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
This study is designed to evaluate the diagnostic accuracy of Narrow Band Imaging (NBI) compared with High Definition White Light colonoscopy (WLE) for detection of residual neoplasia in subjects with piecemeal polypectomy scars.
Conditions
Conditions (1)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Colorectal Neoplasms | Colorectal Neoplasm | ONTOLOGY_EXACT | 0.98 |
Interventions
Interventions (2)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| NBI | Device | — | UNRESOLVED |
| WLE | Device | — | UNRESOLVED |
Design
Arms and outcomes
Arms (2)
- type
- EXPERIMENTAL
- label
- WLE-NBI
- description
- Participants will be evaluated by same endoscopist, tandem colonoscopy. It consists of two revisions of the polypectomy scar using firstly High Definition White Light Endoscopy (WLE) and secondly Narrow Band Imaging. All suspected neoplasia will be classified macroscopically and resected and differentiated from both techniques. The rest of the gut will be inspected following conventional standards.
- interventionNames
- Device: WLE
- Device: NBI
- type
- EXPERIMENTAL
- label
- NBI-WLE
- description
- Participants will be evaluated by same endoscopist, tandem colonoscopy. It consists of two revisions of the polypectomy scar using firstly Narrow Band Imaging and secondly High Definition White Light Endoscopy (WLE). All suspected neoplasia will be classified macroscopically and resected and differentiated from both techniques. The rest of the gut will be inspected following conventional standards.
- interventionNames
- Device: WLE
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
Show eligibility criteria text
Inclusion Criteria: * Patients over 18 years old who underwent a colonoscopy for any reason in the last 12 month * Patients with a basal colonoscopy findings: ≥1 polyp removed in a piecemeal fashion regardless of the size Exclusion Criteria: * Diagnosis of a CRC in the basal colonoscopy * Subjects who neglect to follow-up * Subjects who do not accept informed consent * Subjects with high risk of perforation or complications due to sedation, including patients with comorbidities (ASA IV-V) * Inadequate bowel preparation for colonoscopy (defined by Boston Bowel Preparation Score (BBPS): ≤ 5 total points; or 0-1 points in any of the 3 segments of the colon)
References
Publications (8)
- BACKGROUNDBrooker JC, Saunders BP, Shah SG, Thapar CJ, Thomas HJ, Atkin WS, Cardwell CR, Williams CB. Total colonic dye-spray increases the detection of diminutive adenomas during routine colonoscopy: a randomized controlled trial. Gastrointest Endosc. 2002 Sep;56(3):333-8. doi: 10.1016/s0016-5107(02)70034-5. PMID 12196768
- BACKGROUNDKiesslich R, von Bergh M, Hahn M, Hermann G, Jung M. Chromoendoscopy with indigocarmine improves the detection of adenomatous and nonadenomatous lesions in the colon. Endoscopy. 2001 Dec;33(12):1001-6. doi: 10.1055/s-2001-18932. PMID 11740641
- BACKGROUNDKaminski MF, Hassan C, Bisschops R, Pohl J, Pellise M, Dekker E, Ignjatovic-Wilson A, Hoffman A, Longcroft-Wheaton G, Heresbach D, Dumonceau JM, East JE. Advanced imaging for detection and differentiation of colorectal neoplasia: European Society of Gastrointestinal Endoscopy (ESGE) Guideline. Endoscopy. 2014 May;46(5):435-49. doi: 10.1055/s-0034-1365348. Epub 2014 Mar 17. PMID 24639382
- BACKGROUNDKhashab M, Eid E, Rusche M, Rex DK. Incidence and predictors of "late" recurrences after endoscopic piecemeal resection of large sessile adenomas. Gastrointest Endosc. 2009 Aug;70(2):344-9. doi: 10.1016/j.gie.2008.10.037. Epub 2009 Feb 27. PMID 19249767
- BACKGROUNDAtkin WS, Valori R, Kuipers EJ, Hoff G, Senore C, Segnan N, Jover R, Schmiegel W, Lambert R, Pox C; International Agency for Research on Cancer. European guidelines for quality assurance in colorectal cancer screening and diagnosis. First Edition--Colonoscopic surveillance following adenoma removal. Endoscopy. 2012 Sep;44 Suppl 3:SE151-63. doi: 10.1055/s-0032-1309821. Epub 2012 Sep 25. PMID 23012119
- BACKGROUNDLieberman DA, Rex DK, Winawer SJ, Giardiello FM, Johnson DA, Levin TR. Guidelines for colonoscopy surveillance after screening and polypectomy: a consensus update by the US Multi-Society Task Force on Colorectal Cancer. Gastroenterology. 2012 Sep;143(3):844-857. doi: 10.1053/j.gastro.2012.06.001. Epub 2012 Jul 3. No abstract available.