Laser Measurement of Polyps and Crohn's Lesions During Colonoscopy
Tests a laser tool for measuring lesion size during colonoscopy in adults.
Key facts
- Who runs it
- Centre hospitalier de l'Université de Montréal (CHUM)
- Where
- Montreal, CanadaSee the site
- Trial code
- Registry title
- Lesion Size Measurement During Gastrointestinal Endoscopies
- Status
- Recruiting
- People taking part
- 3,000 people, planned
- Started
- 9 May 2025
- Expected to end
- Nov 2027
- Type of study
- Observational
- Record updated
- 18 August 2026
Who can take part
AI summary
From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.
The trial is looking for adults having a gastrointestinal endoscopy. It tests a laser tool, AccuMeasure, for measuring polyps and lesions.
- Age
- 18 years and older
- Sex
- All sexes can join.
Main reasons for not taking part
- Under 18 years of age
- Does not give informed consent
- Endoscopy done as an emergency
- American Society of Anesthesiologists (ASA) physical status greater than 3
The registry criteria, word for word
Show all 6 criteriaShow less
Who can take part
- Adult patients (18 years and older)
- Patients undergoing gastrointestinal endoscopy procedures
Who cannot take part
- Patients undergoing endoscopy on an emergency basis (defined as urgent diagnostic or therapeutic endoscopy performed on the gastrointestinal (GI) tract to address potentially life-threatening conditions or severe symptoms that require immediate medical attention)
- Minors: Patients under 18 years of age
- Patients who do not provide informed consent
- An American Society of Anesthesiologists (ASA) physical status classification greater than 3
Where in Canada
- Centre Hospitalier de l'Université de MontréalMontreal, CanadaContact: Samira HaninTaking people
About the trial
What the trial wants to find out
The goal of this prospective observational study is to assess the accuracy and reliability of laser readings obtained through AccuMeasure, in comparison to other measurements performed by gastroenterologists. AccuMeasure is a novel technology, that has emerged as a promising tool for measuring polyps and lesions during colonoscopies. The system employs laser-based measurements, enabling precise determination of lesion size, depth, and extent. The main hypotheses this study aims to evaluate are:
Read full original descriptionShow less
* AccuMeasure technology, with its precise laser measurements, will demonstrate superior accuracy and reliability in assessing lesion size of pathologies encountered during endoscopies, when compared to other endoscopic scoring methods. * AccuMeasure measurements will show strong construct validity by correlating significantly with endoscopic subscores, symptomatic remission (CD PRO2 <8, partial mayo score), and fecal calprotectin values.
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Contact the study team: see the registry record → Contacts and Locations
Print a page for my doctorData and sources
- Registry record
- Listed on ClinicalTrials.gov.
- Official title
- Lesion Size Measurement During Gastrointestinal Endoscopies
- Plain-language title
- Laser Measurement of Polyps and Crohn's Lesions During ColonoscopyGenerated from the registry record. The registry title is the official one.
- AI summary
- From the trial's eligibility criteria. Read by machine on 12 November 2026.
- Record updated
- 18 August 2026