NCT03961893

Brief Summary

Colonoscopy is the gold standard for colorectal cancer prevention by allowing the resection of superficial colorectal adenomas or adenocarcinomas. This protection, more effective in the left colon than in the right colon, is imperfect and there are some adenomas and cancers omitted during colonoscopy. The G-EYE colonoscope equipped with an integrated distal balloon would better unfold the haustrations and stabilize the endoscope. Thus, the detection rate of adenomas would be improved by this better vision. The main objective of this study is to confirm that the use of the G-EYE colonoscope allows better detection of adenomatous polyps, decrease the rate of omitted adenomes and then is more effective.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
164

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Jan 2020

Longer than P75 for not_applicable

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

First Submitted

Initial submission to the registry

May 21, 2019

Completed
2 days until next milestone

First Posted

Study publicly available on registry

May 23, 2019

Completed
8 months until next milestone

Study Start

First participant enrolled

January 21, 2020

Completed
3.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 19, 2023

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

June 19, 2023

Completed
Last Updated

June 23, 2023

Status Verified

May 1, 2023

Enrollment Period

3.3 years

First QC Date

May 21, 2019

Last Update Submit

June 22, 2023

Conditions

Keywords

colonoscopyg-eyeadenomas

Outcome Measures

Primary Outcomes (1)

  • Rate of missed adenomas during standard colonoscopy and balloon-assisted colonoscopy (G-EYE device)

    Rate between the number of adenomas detected by the second examination and the number of adenomas detected by the two inspections

    Colonoscopy time

Secondary Outcomes (6)

  • Rate of missed advanced adenomas during standard colonoscopy and balloon-assisted colonoscopy (G-EYE device)

    Colonoscopy time

  • Adenoma detected rate during standard colonoscopy and balloon-assisted colonoscopy (G-EYE device) in male and female

    Colonoscopy time

  • Rate of complications

    Colonoscopy time and 1 month after

  • Rate of missed adenomas during standard colonoscopy and balloon-assisted colonoscopy (G-EYE device) in positive fetal immunochemical test (FIT+) subgroup

    Colonoscopy time

  • Adenoma detected rate during standard colonoscopy and balloon-assisted colonoscopy (G-EYE device) in FIT+ subgroup

    Colonoscopy time

  • +1 more secondary outcomes

Study Arms (2)

Arm A: Standard colonoscopy then colonoscopy with G-EYE

EXPERIMENTAL

Arm A: Standard colonoscopy then colonoscopy with G-EYE

Device: standard colonoscope first and G-EYE

Arm B: G-EYE colonoscopy then standard colonoscopy

EXPERIMENTAL

Arm B: G-EYE colonoscopy then standard colonoscopy

Device: G-EYE first and standard colonoscope

Interventions

Patients undergo two successive colonoscopies, first balloon-assisted colonoscopy (G-EYE device) and then standard colonoscopy

Arm B: G-EYE colonoscopy then standard colonoscopy

Patients undergo two successive colonoscopies, first standard colonoscopy and then balloon-assisted colonoscopy (G-EYE device)

Arm A: Standard colonoscopy then colonoscopy with G-EYE

Eligibility Criteria

Age50 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Indication of complete colonoscopy for classic indications (bleeding, abdominal pain, transit disorders) or for family and personal antecedents of adenomas or colorectal cancers with the need for endoscopic control,
  • FIT + test (current blood test for stool used for mass screening in France), PET-CT fixation,
  • Consent of participation signed,
  • Affiliation to a social security scheme, or beneficiary of such a scheme.

You may not qualify if:

  • Non-optimal preparation (boston score \<7 or segment \<2),
  • Adenomatous polyposis, familial or assimilated (juvenile, etc.),
  • Pregnant or likely to be pregnant (without effective contraception) or breastfeeding,
  • Patient in emergency or deprived of liberty or placed under the authority of a tutor,
  • Patient considered geographically socially or psychologically unable to comply with the study procedure and the medical follow-up.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Institut Paoli Calmettes

Marseille, Bouches Du Rhone, 13009, France

Location

MeSH Terms

Conditions

Adenoma

Condition Hierarchy (Ancestors)

Neoplasms, Glandular and EpithelialNeoplasms by Histologic TypeNeoplasms

Study Officials

  • Jean-Philippe RATONE, MD

    Institut Paoli-Calmettes

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Prospective, single-phase, two-stage, randomized phase II study
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 21, 2019

First Posted

May 23, 2019

Study Start

January 21, 2020

Primary Completion

May 19, 2023

Study Completion

June 19, 2023

Last Updated

June 23, 2023

Record last verified: 2023-05

Data Sharing

IPD Sharing
Will not share

Locations