NCT03902899

Brief Summary

In this non-randomized controlled trial, a semi-random group of Dutch endoscopist receive an oral training about the significance of serrated polyps. The primary aim of this training is to improve the endoscopist's awareness of the significance of serrated polyps, ultimately leading to increased detection. In addition, a random group of endoscopists that will not receive this training will be used as a reference group. Data will be collected as part of routine care within the Nationwide Dutch Bowel cancer screening program. The serrated polyp detectionrate of each endoscopist will be extracted from anonymized data that will be prospectively collected as part of routine care within the Dutch Nationwide bowel cancer screening program. Data will be anonymized and provided by Rijksinstituut voor Volksgezondheid en Milieu (RIVM) and ScreenIT.

Trial Health

100
On Track

Trial Health Score

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

Enrollment
138

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Jan 2014

Longer than P75 for not_applicable

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

January 1, 2014

Completed
4.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 26, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 26, 2018

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

January 4, 2019

Completed
3 months until next milestone

First Posted

Study publicly available on registry

April 4, 2019

Completed
Last Updated

April 4, 2019

Status Verified

April 1, 2019

Enrollment Period

4.8 years

First QC Date

January 4, 2019

Last Update Submit

April 2, 2019

Conditions

Outcome Measures

Primary Outcomes (1)

  • Proximal serrated polyp detection rate (PSPDR)

    Rate/proportion of an endoscopist's colonoscopies with one or more serrated polyps proximal to or in splenic flexure.

    Up to five years (between 2014 and 2018)

Secondary Outcomes (1)

  • Adenoma detection rate (ADR)

    Up to five years (between 2014 and 2018)

Study Arms (2)

Intervention-arm

EXPERIMENTAL

All endoscopists employed by 9 semi-randomly chosen hospitals in the Netherlands will be exposed to an educational intervention (oral presentation): an oral awareness training which will be delivered twice, first in 2014 and then in 2016/2017. In total 38 endoscopists are included from these 9 hospitals.

Other: Educational intervention (oral presentation)

Control arm

NO INTERVENTION

A random set of 100 endoscopists will be selected ass a reference group. These 100 endoscopists were unaware of the present study, and were thus blinded for their allocation.

Interventions

A brief oral presentation (30-45 minutes) which focused on making endoscopists aware of the significance and characteristics of serrated polyps.

Intervention-arm

Eligibility Criteria

Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • \- Endoscopists accredited to perform colonoscopies within the Dutch Nationwide colorectal cancer screening program

You may not qualify if:

  • \- Absent during both training sessions while employed in one of the trained hospitals

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (1)

  • Bleijenberg AGC, van Leerdam ME, Bargeman M, Koornstra JJ, van Herwaarden YJ, Spaander MC, Sanduleanu S, Bastiaansen BAJ, Schoon EJ, van Lelyveld N, Dekker E, IJspeert JEG. Substantial and sustained improvement of serrated polyp detection after a simple educational intervention: results from a prospective controlled trial. Gut. 2020 Dec;69(12):2150-2158. doi: 10.1136/gutjnl-2019-319804. Epub 2020 Mar 5.

MeSH Terms

Conditions

Colorectal Neoplasms

Condition Hierarchy (Ancestors)

Intestinal NeoplasmsGastrointestinal NeoplasmsDigestive System NeoplasmsNeoplasms by SiteNeoplasmsDigestive System DiseasesGastrointestinal DiseasesColonic DiseasesIntestinal DiseasesRectal Diseases

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Masking Details
The investigator personally delivers the training and can thus not be blinded for the endoscopists allocated to the intervention-arm.
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
PARALLEL
Model Details: This is a non-randomized controlled trial with two arms. The intervention-arm consists of all endoscopists employed by 9 semi-randomly chosen Dutch hospitals hospitals who receive an educational training. The control-arm consists of a specific number of randomly chosen endoscopists.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal investigator

Study Record Dates

First Submitted

January 4, 2019

First Posted

April 4, 2019

Study Start

January 1, 2014

Primary Completion

October 26, 2018

Study Completion

October 26, 2018

Last Updated

April 4, 2019

Record last verified: 2019-04

Data Sharing

IPD Sharing
Will not share