NCT04589078

Brief Summary

Diminutive colorectal polyps (≤ 5 mm) represent most of the polyps detected during colonoscopy, especially in the rectum-sigmoid tract. The characterization of these polyps by virtual chromoendoscopy is recognized as a key element for innovative imaging techniques. As a matter of facts diminutive colorectal polyps are very frequent and, if located in the rectosigmoid colon, they present a very low malignant risk (0.3% of evolution towards advanced adenoma and up to 0.08% of evolution towards invasive carcinoma). The real-time characterization would allow to identify the lowest risk polyps (hyperplastic subtype), to leave them in situ or, if resected, not to send them for histological examination, allowing a huge saving in healthcare associated costs. Recently, the American Society for Gastrointestinal Endoscopy (ASGE) Technology Committee established the Preservation and Incorporation of Valuable endoscopic Innovations (PIVI) document, specific for real-time histological assessment for tiny colorectal polyps, to establish reference quality thresholds. Two performance standards have been developed to guide the use of advanced imaging:

  1. 1.for diminutive polyps to be resected and discarded without pathologic assessment, endoscopic technology (when used with high confidence) used to determine histology of polyps ≤ 5mm in size, when combined with the histopathology assessment of polyps \> 5 mm in size, should provide a ≥ 90% agreement in assignment of post-polypectomy surveillance intervals when compared to decisions based on pathology assessment of all identified polyps;
  2. 2.in order for a technology to be used to guide the decision to leave suspected rectosigmoid hyperplastic polyps ≤ 5 mm in size in place (without resection), the technology should provide ≥ 90% negative predictive value (when used with high confidence) for adenomatous histology.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
200

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Sep 2020

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 8, 2020

Completed
1 month until next milestone

First Submitted

Initial submission to the registry

October 13, 2020

Completed
6 days until next milestone

First Posted

Study publicly available on registry

October 19, 2020

Completed
2 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 22, 2020

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 22, 2020

Completed
Last Updated

May 12, 2021

Status Verified

May 1, 2021

Enrollment Period

4 months

First QC Date

October 13, 2020

Last Update Submit

May 10, 2021

Conditions

Outcome Measures

Primary Outcomes (1)

  • Negative Predictive Value of histology prediction on diminutive (≤5 mm) rectosigmoid polyps

    1 day

Secondary Outcomes (1)

  • Agreement in assignment of post-polypectomy surveillance intervals

    1 day

Other Outcomes (1)

  • Sensitivity, Specificity, Accuracy, PPV and NPV of GI Genius CADx histology prediction and endoscopist assessment on all the identified lesions

    1 day

Study Arms (1)

Interficial Intelligence

Each patient will undergo standard white-light colonoscopy with the support of the latest version of the CE marked GI Genius CADe available.

Device: GI Genius CADe system

Interventions

Each patient will undergo standard white-light colonoscopy with the support of the latest version of the CE marked GI Genius CADe available.

Interficial Intelligence

Eligibility Criteria

Age40 Years - 80 Years
Sexall
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Patients aged 40-80 undergoing colonoscopy

You may qualify if:

  • Patients aged 40-80 undergoing screening colonoscopy for CRC
  • Ability to provide written, informed consent (approved by EC) and understand the responsibilities of trial participation.

You may not qualify if:

  • subjects positive to Fecal Immunochemical Test or Fecal Occult Blood Test;
  • subjects undergoing CRC surveillance colonoscopy
  • subject at high risk for CRC
  • subjects with a personal history of CRC, IBD or hereditary polyposic or non-polyposic syndromes;
  • patients with previous resection of the sigmoid rectum;
  • patients on anticoagulant therapy, which precludes resection / removal operations due to histopathological findings;
  • patients who perform an emergency colonoscopy.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Endoscopy Unit, Humanitas Research Hospital

Rozzano, Milano, 20089, Italy

Location

Study Design

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

Study Record Dates

First Submitted

October 13, 2020

First Posted

October 19, 2020

Study Start

September 8, 2020

Primary Completion

December 22, 2020

Study Completion

December 22, 2020

Last Updated

May 12, 2021

Record last verified: 2021-05

Data Sharing

IPD Sharing
Will not share

Locations