NCT05064124

Brief Summary

The purpose of the study is to assess whether the AI characterisation system of the CADDIE device improves the endoscopists accuracy in the optical diagnosis of diminutive colorectal polyps in the bowel during colonoscopy. Participants will either have a colonoscopy with the assistance of the CADDIE device characterisation AI system ("intervention group") or have a colonoscopy in line with routine clinical practice i.e., without the CADDIE device characterisation AI system ("control group"). The randomisation method of this trial will allocate enrolled participants to the "intervention" group and to the "control" group by a technique similar to flipping a coin.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
420

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jul 2024

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

September 8, 2021

Completed
23 days until next milestone

First Posted

Study publicly available on registry

October 1, 2021

Completed
2.8 years until next milestone

Study Start

First participant enrolled

July 18, 2024

Completed
10 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2025

Completed
Last Updated

December 16, 2024

Status Verified

December 1, 2024

Enrollment Period

10 months

First QC Date

September 8, 2021

Last Update Submit

December 10, 2024

Conditions

Keywords

Artificial intelligenceEndoscopyADR

Outcome Measures

Primary Outcomes (1)

  • The primary objective of this study is to evaluate whether the CADDIE system improves endoscopists accuracy in the optical diagnosis of diminutive colorectal polyps (≤5mm).

    The primary endpoint will be the proportion of diminutive colorectal polyps optically diagnosed correctly by endoscopists (correct optical diagnoses divided by total number of diminutive polyps), expressed as a percentage, in the CADDIE arm compared to the control arm, with the polyp histopathology being referenced as the ground truth.

    1 year

Secondary Outcomes (8)

  • To determine whether using the CADDIE system improves endoscopists accuracy in the optical diagnosis of diminutive polyps in the rectosigmoid area.

    1 year

  • To determine whether using the CADDIE system improves the negative predicator value (NPV) of endoscopists for optically diagnosing diminutive adenomatous polyps in the rectosigmoid area.

    1 year

  • To assess the concordance of colonoscopy surveillance intervals in the CADDIE arm determined using endoscopists optical diagnosis against histopathology derived surveillance intervals (ground truth).

    1 year

  • To assess the concordance of colonoscopy surveillance intervals in the control arm determined using endoscopists optical diagnosis against histopathology derived surveillance intervals (ground truth).

    1 year

  • To compare the accuracy of the colonoscopy surveillance intervals when the endoscopists uses the CADDIE system (CADDIE arm) compared to without the CADDIE system (control arm).

    1 year

  • +3 more secondary outcomes

Study Arms (2)

CADDIE

Participants will have a colonoscopy with the assistance of the CADDIE device characterisation AI system

Device: CADDIE - Computer Aided Detection and Diagnosis for Intelligent Endoscopy

Control group

Participants will have a colonoscopy in line with routine clinical practice i.e., without the CADDIE device characterisation AI system

Interventions

1. CADDIE assisted polyp detection 2. CADDIE assisted polyp characterisation

CADDIE

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Participants scheduled to undergo a screening, surveillance or symptomatic colonoscopy at UCLH

You may qualify if:

  • Participants scheduled to undergo a screening, surveillance or symptomatic colonoscopy with an endoscopist participating in the study phase of the trial.
  • Male and female participants aged 18 years or older at the time of informed consent.
  • Participants able to comprehend, sign and date the written informed consent document to participate in the study.

You may not qualify if:

  • Emergency and/or inpatient colonoscopies
  • Participants with inflammatory bowel disease (IBD)
  • Participants with current Colorectal Cancer (CRC)
  • Participants with a contraindication for biopsy or polypectomy. These include:
  • Participants who have not withheld medications pre-disposing to bleeding at time of colonoscopy as per local site /national guidelines.
  • Participants with a history of haemostasis disorders (haemostasis disorders will include but will not be limited to: participants with haemophilia or other congenitally acquired clotting factor deficiencies, participants with cirrhosis with coagulopathy, participants known to have thrombocytopenia (\<80,000 platelet/ul) and individuals with Von Willebrand's disease or other known platelet malfunction disorders)
  • Participant is enrolled in another research study with an investigational medicinal product (IMP) or non-IMP that pre-disposes them to bleeding

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University College London Hospitals NHS Foundation Trust

London, NW1 2PG, United Kingdom

RECRUITING

MeSH Terms

Conditions

PolypsColonic Polyps

Interventions

Diagnosis

Condition Hierarchy (Ancestors)

Pathological Conditions, AnatomicalPathological Conditions, Signs and SymptomsIntestinal Polyps

Study Officials

  • Manish Chand, MBBS FRCS PhD

    UCL

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Sharon Cheung, MSc

CONTACT

Rawen Kader, MBBS MRCP

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 8, 2021

First Posted

October 1, 2021

Study Start

July 18, 2024

Primary Completion

May 1, 2025

Study Completion

May 1, 2025

Last Updated

December 16, 2024

Record last verified: 2024-12

Data Sharing

IPD Sharing
Will share

Patients will be asked informed consent with the possibility to share the data

Time Frame
Data will be made available from 1 year after the trial findings are published. This is available for up to 5 years after study completion.
Access Criteria
We will make provision for and consider data sharing requests from bona fide researchers who must abide by the following principles: data will be collected with an high level of quality assurance, data will be held securely with appropriate documentation, data will not be put into the public domain or otherwise shared without explicit ethical review or legal obligation, and they will aim to use any data generated to the maximum public good. These datasets are governed by data usage policies specified by the data controller (UCL). If a conflict exists that severely restricts the analyses that can be undertaken, we would endeavour to support outside researchers by hosting them as visiting workers in our team so that they can access the data. We are committed to complying with the Wellcome Trust Data Sharing Policy. Applications are subject to review by Laurence Lovat and Rawen Kader and should be emailed to l.lovat@ucl.ac.uk

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