NCT03309683

Brief Summary

Study design: A national, multi-center, patient-blinded, randomized clinical trial. Study population: Patients undergoing EMR with a moderate to severe risk (right sided colon, ≥2cm) of developing Delayed Bleeding (DB). Intervention: PC will be compared to standard care (no PC). Main study endpoints: Primary endpoint is the incidence of DB. Secondary endpoints are cost-effectiveness, quality of life and (severe) adverse events related to PC, adenoma recurrence and risk factors for DB.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
356

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Mar 2018

Longer than P75 for not_applicable

Geographic Reach
1 country

2 active sites

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

October 9, 2017

Completed
4 days until next milestone

First Posted

Study publicly available on registry

October 13, 2017

Completed
5 months until next milestone

Study Start

First participant enrolled

March 5, 2018

Completed
4.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 19, 2022

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2023

Completed
Last Updated

March 30, 2023

Status Verified

December 1, 2021

Enrollment Period

4.5 years

First QC Date

October 9, 2017

Last Update Submit

March 29, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Delayed bleeding

    Clinical relevant delayed bleeding defined according to the ASGE working party document for adverse events in coloscopy.

    30 days

Secondary Outcomes (3)

  • Adenoma recurrence

    180 days

  • Cost-effectiveness

    180 days

  • EMR scar evaluation

    180 days

Study Arms (2)

Clip group

EXPERIMENTAL

Olympus Quick Clip Pro - Single Use Repositionable Clips will be used for Prophylactic clipping after EMR

Device: Olympus Quick Clip Pro - Single Use Repositionable Clips

Control group

NO INTERVENTION

Standard treatment after EMR (as described in the detailed study description above)

Interventions

A hemoclip will be placed after every 0,5-1,0 cm of the resected area to proximate wound edges.

Also known as: prophylactic clipping, hemoclip
Clip group

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • laterally spreading or sessile polyp morphology (Paris classification 0-IIa/b/c) proximal to the splenic flexure, measuring 2-6 cm
  • All patients aged \>18 years undergoing an EMR
  • Written informed consent

You may not qualify if:

  • Previous resection or attempted resection of a lesion less than 30 days ago or in the same session,
  • Clip deployed prior to the completion of the EMR for a perforation or a major intra-procedural bleeding not treatable by coagulation,
  • Endoscopic appearance of invasive malignancy (non-lifting Kato D, Kudo V pit pattern),
  • Pregnancy,
  • Active inflammatory colonic conditions (e.g. inflammatory bowel disease),
  • Insufficiently corrected anticoagulants AND/OR a clotting disorder (platelet count \<50x109/l, INR \> 1,5),
  • American Society of Anesthesiology (ASA) Grade IV-V,
  • Macroscopic non-radical resection,
  • \>1 lesion in 1 session,
  • Involvement of valvula Bauhin or appendiceal orificium

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Ziekenhuis St Jansdal

Harderwijk, Gelderland, 3844DG, Netherlands

Location

Radboudumc

Nijmegen, Gelderland, 6525GA, Netherlands

Location

Related Publications (2)

  • Kemper G, Turan AS, Schreuder RM, Schrauwen RWM, Hadithi M, Didden P, Bastiaansen BAJ, van der Spek BW, Droste JSTS, Schwartz MP, Hazen WL, Straathof JWA, Boonstra JJ, Alkhalaf A, Voogd FJ, Allajar D, de Graaf W, Koehestanie P, Roomer R, de Ridder RJJ, Moons LMG, Siersema PD, van Geenen EJM; Dutch EMR Study Group. The effect of prophylactic clipping on delayed bleeding after proximal colonic endoscopic mucosal resection: a multicenter, randomized controlled trial (CLIPPER). Endoscopy. 2025 Nov;57(11):1243-1250. doi: 10.1055/a-2637-3180. Epub 2025 Jul 22.

  • Turan AS, Moons LMG, Schreuder RM, Schoon EJ, Terhaar Sive Droste JS, Schrauwen RWM, Straathof JW, Bastiaansen BAJ, Schwartz MP, Hazen WL, Alkhalaf A, Allajar D, Hadithi M, van der Spek BW, Heine DGDN, Tan ACITL, de Graaf W, Boonstra JJ, Voogd FJ, Roomer R, de Ridder RJJ, Kievit W, Siersema PD, Didden P, van Geenen EJM; Dutch EMR Study Group. Clip placement to prevent delayed bleeding after colonic endoscopic mucosal resection (CLIPPER): study protocol for a randomized controlled trial. Trials. 2021 Jan 18;22(1):63. doi: 10.1186/s13063-020-04996-7.

MeSH Terms

Conditions

Colonic PolypsHemorrhage

Condition Hierarchy (Ancestors)

Intestinal PolypsPolypsPathological Conditions, AnatomicalPathological Conditions, Signs and SymptomsPathologic Processes

Study Officials

  • Erwin JM Van Geenen, dr

    Radboud University Medical Center

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 9, 2017

First Posted

October 13, 2017

Study Start

March 5, 2018

Primary Completion

August 19, 2022

Study Completion

March 1, 2023

Last Updated

March 30, 2023

Record last verified: 2021-12

Data Sharing

IPD Sharing
Will not share

Open for sharing IPD after study completion and publication. Currently not yet applicable as the study is still recruiting.

Locations