Colon Cancer, Colon Sessile Serrated Adenoma/Polyp
Conditions
Brief summary
Colorectal cancer (CRC) is a leading cause of cancer death and its' incidence is rising in most European countries. Colonoscopy has been shown to reduce CRC incidence, however its effectiveness depends on the sensitivity to detect pre-malignant lesions. Our aim is to evaluate narrow band imaging (NBI) during colonoscopy and serum miRNAs as novel tools for the early detection of colonic sessile serrated lesions (SSL). The investigators will perform a multicenter-randomized-controlled-trial to study the role of NBI in SSL detection.
Interventions
colonoscope withdrawal and mucosal inspection performed under white light imaging
colonoscope withdrawal and mucosal inspection performed under narrow band imaging
Sponsors
Study design
Eligibility
Inclusion criteria
* Patients scheduled for elective colonoscopies
Exclusion criteria
* known polyposis syndromes * primary sclerosing cholangitis * inflammatory bowel disease * personal colorectal cancer history
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| average number of serrated lesions ≥10 mm detected per colonoscopy | immediate |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Serrated lesions <10 mm detected per colonoscopy | immediate | — |
| SSL detection rate | immediate | histologically defined according to the WHO criteria |
| Adenoma detection rate | immediate | number of patients with at least 1 adenoma/total number of participants |
| Serrated class lesions detection rate | immediate | number of patients with at least 1 lesion/total number of participants |
| Advanced (malignant) adenocarcinoma detection rate | immediate | — |
| Incidence of procedure related adverse events | immediate | — |
| Adenomas detected per colonoscopy | immediate | — |
Countries
Portugal