NCT04894708

Brief Summary

Colonoscopy is currently the best method of detection of intestinal tumors and polyps, particularly because polyps can also be biopsied and removed. There is a clear correlation between the adenoma detection rate and prevented carcinomas, so adenoma detection rate is the main parameter for the outcome quality of diagnostic colonoscopy. The efficiency of preventive colonoscopy needs optimisation by increase in adenoma detection rate, as it is known from many studies that approximately 15-30% of all adenomas can be overlooked. This mainly applies to smaller and flat adenomas. However, since even smaller polyps may be relevant for colorectal cancer development, the aim of colonoscopy should be to preferably be able to recognize all polyps and other changes.The latest and by far the most interesting development in this field is the use of artificial intelligence systems. They consist of a switched-on software with a small computer connected to the endoscope processor; the patient's introduced endoscope is completely unchanged. The present study therefore compares the adenoma detection rate (ADR) of the latest generation of devices with high-resolution imaging from Fujifilm with and without the connection of artificial intelligence.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
1,572

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Oct 2020

Longer than P75 for not_applicable

Geographic Reach
1 country

10 active sites

Status
unknown

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

October 28, 2020

Completed
1 month until next milestone

First Submitted

Initial submission to the registry

December 1, 2020

Completed
6 months until next milestone

First Posted

Study publicly available on registry

May 20, 2021

Completed
3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2024

Completed
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2024

Completed
Last Updated

June 28, 2023

Status Verified

June 1, 2023

Enrollment Period

3.5 years

First QC Date

December 1, 2020

Last Update Submit

June 27, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Adenoma detection rate

    Difference in adenoma detection rate (all adenomas/all patients) between the two groups

    during procedure to histological examination result, approximately 2 days

Secondary Outcomes (7)

  • Patient rate difference

    during procedure to histological examination result, approximately 2 days

  • Adenoma subgroup differences

    histological examination result, approximately 2 days

  • rate of hyperplastic polyp detection in both groups

    histological examination result, approximately 2 days

  • rate of polyp detection in preventive and diagnostic colonoscopy

    during procedure to histological examination result, approximately 2 days

  • Switching number (BLI, LCI) in both groups

    during procedure

  • +2 more secondary outcomes

Study Arms (2)

AI colonoscopy

OTHER

colonoscopy with artificial intelligence added

Procedure: colonoscopy

conventional colonoscopy

SHAM COMPARATOR

conventional colonoscopy

Procedure: colonoscopy

Interventions

colonoscopyPROCEDURE

addition of polyp detection algorithm by Fujifilm

AI colonoscopyconventional colonoscopy

Eligibility Criteria

Age35 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Persons\> 35 years of age who are capable of giving informed consent
  • Planned diagnostic colonoscopy (clarification of symptoms, polyp follow-up)
  • Screening colonoscopy for men \>50 or women \> 55 years of age

You may not qualify if:

  • Colon bleeding
  • Colon carcinoma
  • Known polyps for removal
  • Inflammatory bowel disease
  • Colonic stenosis
  • Other suspected colon disease for further clarification
  • Follow-up care after colon cancer surgery (partial colon resection)
  • Anticoagulant drugs that make a biopsy or polypectomy impossible
  • Poor general condition (ASA IV)
  • Incomplete colonoscopy planned

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (10)

Gastroenterologiepraxis Dr. Moog

Kassel, Hesse, 34127, Germany

TERMINATED

Universitätsklinikum Leipzig

Leipzig, Saxony, 04103, Germany

RECRUITING

GastroZentrum Lippe

Bad Salzuflen, 32105, Germany

TERMINATED

Gastroenterologie am Bayerischen Platz

Berlin, 10825, Germany

RECRUITING

University Hospital Bonn

Bonn, 53127, Germany

RECRUITING

St. Vinzenz-Hospital / Akademisches Lehrkrankenhaus der Universität zu Köln

Cologne, 50733, Germany

RECRUITING

University Hospital Eppendorf

Hamburg, 20246, Germany

RECRUITING

University Hospital Magdeburg

Magdeburg, 39120, Germany

RECRUITING

Marienhospital Osnabrück

Osnabrück, 49074, Germany

RECRUITING

Asklepios Paulinen Klinik Wiesbaden

Wiesbaden, 65197, Germany

RECRUITING

Related Publications (20)

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    PMID: 18799558BACKGROUND
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    PMID: 23212726BACKGROUND
  • Millan MS, Gross P, Manilich E, Church JM. Adenoma detection rate: the real indicator of quality in colonoscopy. Dis Colon Rectum. 2008 Aug;51(8):1217-20. doi: 10.1007/s10350-008-9315-3. Epub 2008 May 24.

    PMID: 18500502BACKGROUND
  • Bretagne JF, Ponchon T. Do we need to embrace adenoma detection rate as the main quality control parameter during colonoscopy? Endoscopy. 2008 Jun;40(6):523-8. doi: 10.1055/s-2007-995786. Epub 2008 May 8. No abstract available.

    PMID: 18464196BACKGROUND
  • Corley DA, Jensen CD, Marks AR, Zhao WK, Lee JK, Doubeni CA, Zauber AG, de Boer J, Fireman BH, Schottinger JE, Quinn VP, Ghai NR, Levin TR, Quesenberry CP. Adenoma detection rate and risk of colorectal cancer and death. N Engl J Med. 2014 Apr 3;370(14):1298-306. doi: 10.1056/NEJMoa1309086.

    PMID: 24693890BACKGROUND
  • Kaminski MF, Regula J, Kraszewska E, Polkowski M, Wojciechowska U, Didkowska J, Zwierko M, Rupinski M, Nowacki MP, Butruk E. Quality indicators for colonoscopy and the risk of interval cancer. N Engl J Med. 2010 May 13;362(19):1795-803. doi: 10.1056/NEJMoa0907667.

    PMID: 20463339BACKGROUND
  • Barclay RL, Vicari JJ, Doughty AS, Johanson JF, Greenlaw RL. Colonoscopic withdrawal times and adenoma detection during screening colonoscopy. N Engl J Med. 2006 Dec 14;355(24):2533-41. doi: 10.1056/NEJMoa055498.

    PMID: 17167136BACKGROUND
  • Adler A, Wegscheider K, Lieberman D, Aminalai A, Aschenbeck J, Drossel R, Mayr M, Mross M, Scheel M, Schroder A, Gerber K, Stange G, Roll S, Gauger U, Wiedenmann B, Altenhofen L, Rosch T. Factors determining the quality of screening colonoscopy: a prospective study on adenoma detection rates, from 12,134 examinations (Berlin colonoscopy project 3, BECOP-3). Gut. 2013 Feb;62(2):236-41. doi: 10.1136/gutjnl-2011-300167. Epub 2012 Mar 22.

    PMID: 22442161BACKGROUND
  • Adler A, Aminalai A, Aschenbeck J, Drossel R, Mayr M, Scheel M, Schroder A, Yenerim T, Wiedenmann B, Gauger U, Roll S, Rosch T. Latest generation, wide-angle, high-definition colonoscopes increase adenoma detection rate. Clin Gastroenterol Hepatol. 2012 Feb;10(2):155-9. doi: 10.1016/j.cgh.2011.10.026. Epub 2011 Nov 2.

    PMID: 22056301BACKGROUND
  • Adler A, Aschenbeck J, Yenerim T, Mayr M, Aminalai A, Drossel R, Schroder A, Scheel M, Wiedenmann B, Rosch T. Narrow-band versus white-light high definition television endoscopic imaging for screening colonoscopy: a prospective randomized trial. Gastroenterology. 2009 Feb;136(2):410-6.e1; quiz 715. doi: 10.1053/j.gastro.2008.10.022. Epub 2008 Oct 15.

    PMID: 19014944BACKGROUND
  • Adler A, Pohl H, Papanikolaou IS, Abou-Rebyeh H, Schachschal G, Veltzke-Schlieker W, Khalifa AC, Setka E, Koch M, Wiedenmann B, Rosch T. A prospective randomised study on narrow-band imaging versus conventional colonoscopy for adenoma detection: does narrow-band imaging induce a learning effect? Gut. 2008 Jan;57(1):59-64. doi: 10.1136/gut.2007.123539. Epub 2007 Aug 6.

    PMID: 17681999BACKGROUND
  • Adler A, Roll S, Marowski B, Drossel R, Rehs HU, Willich SN, Riese J, Wiedenmann B, Rosch T; Berlin Private-Practice Gastroenterology Working Group. Appropriateness of colonoscopy in the era of colorectal cancer screening: a prospective, multicenter study in a private-practice setting (Berlin Colonoscopy Project 1, BECOP 1). Dis Colon Rectum. 2007 Oct;50(10):1628-38. doi: 10.1007/s10350-007-9029-y.

    PMID: 17694415BACKGROUND
  • Schachschal G, Mayr M, Treszl A, Balzer K, Wegscheider K, Aschenbeck J, Aminalai A, Drossel R, Schroder A, Scheel M, Bothe CH, Bruhn JP, Burmeister W, Stange G, Bahr C, Kiesslich R, Rosch T. Endoscopic versus histological characterisation of polyps during screening colonoscopy. Gut. 2014 Mar;63(3):458-65. doi: 10.1136/gutjnl-2013-304562. Epub 2013 Jun 28.

    PMID: 23812324BACKGROUND
  • Schachschal G, Sehner S, Choschzick M, Aust D, Brandl L, Vieth M, Wegscheider K, Baretton GB, Kirchner T, Sauter G, Rosch T. Impact of reassessment of colonic hyperplastic polyps by expert GI pathologists. Int J Colorectal Dis. 2016 Mar;31(3):675-83. doi: 10.1007/s00384-016-2523-8. Epub 2016 Feb 4.

    PMID: 26847619BACKGROUND
  • Zimmermann-Fraedrich K, Groth S, Sehner S, Schubert S, Aschenbeck J, Mayr M, Aminalai A, Schroder A, Bruhn JP, Blaker M, Rosch T, Schachschal G. Effects of two instrument-generation changes on adenoma detection rate during screening colonoscopy: results from a prospective randomized comparative study. Endoscopy. 2018 Sep;50(9):878-885. doi: 10.1055/a-0607-2636. Epub 2018 Jul 23.

    PMID: 30036893BACKGROUND
  • Rosch T, Altenhofen L, Kretschmann J, Hagen B, Brenner H, Pox C, Schmiegel W, Theilmeier A, Aschenbeck J, Tannapfel A, von Stillfried D, Zimmermann-Fraedrich K, Wegscheider K. Risk of Malignancy in Adenomas Detected During Screening Colonoscopy. Clin Gastroenterol Hepatol. 2018 Nov;16(11):1754-1761. doi: 10.1016/j.cgh.2018.05.043. Epub 2018 Jun 11.

    PMID: 29902640BACKGROUND
  • Pioche M, Denis A, Allescher HD, Andrisani G, Costamagna G, Dekker E, Fockens P, Gerges C, Groth S, Kandler J, Lienhart I, Neuhaus H, Petruzziello L, Schachschal G, Tytgat K, Wallner J, Weingart V, Touzet S, Ponchon T, Rosch T. Impact of 2 generational improvements in colonoscopes on adenoma miss rates: results of a prospective randomized multicenter tandem study. Gastrointest Endosc. 2018 Jul;88(1):107-116. doi: 10.1016/j.gie.2018.01.025. Epub 2018 Feb 4.

    PMID: 29410020BACKGROUND
  • Bronzwaer MES, Dekker E, Weingart V, Groth S, Pioche M, Rivory J, Beyna T, Neuhaus H, Ponchon T, Allescher H, Fockens P, Rosch T. Feasibility, safety, and diagnostic yield of the Extra Wide Angle View (EWAVE) colonoscope for the detection of colorectal lesions. Endoscopy. 2018 Jan;50(1):63-68. doi: 10.1055/s-0043-120666. Epub 2017 Nov 13.

    PMID: 29132174BACKGROUND
  • Zimmermann-Fraedrich K, Sehner S, Rosch T, Aschenbeck J, Schubert S, Liceni T, Moog G, Neumann H, Berndt R, Weigt J, Kaczmarek DJ, May A, Hoffmeister A, Moschler O, Wiessner C, Schachschal G. No Effect of Computer-Aided Diagnosis on Colonoscopic Adenoma Detection in a Large Pragmatic Multicenter Randomized Study. Am J Gastroenterol. 2025 Apr 28. doi: 10.14309/ajg.0000000000003500. Online ahead of print.

MeSH Terms

Interventions

Colonoscopy

Intervention Hierarchy (Ancestors)

Endoscopy, GastrointestinalEndoscopy, Digestive SystemDiagnostic Techniques, Digestive SystemDiagnostic Techniques and ProceduresDiagnosisEndoscopyDiagnostic Techniques, SurgicalDigestive System Surgical ProceduresSurgical Procedures, OperativeMinimally Invasive Surgical Procedures

Study Officials

  • Thomas Rösch, Prof. dr.

    Universitätsklinikum Hamburg-Eppendorf

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Thomas Rösch, Prof. Dr.

CONTACT

Guido Schachschal, PD Dr.

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Director of Department of Interdisciplinary Endoscopy of University Hospital Hamburg Eppendorf

Study Record Dates

First Submitted

December 1, 2020

First Posted

May 20, 2021

Study Start

October 28, 2020

Primary Completion

May 1, 2024

Study Completion

September 1, 2024

Last Updated

June 28, 2023

Record last verified: 2023-06

Data Sharing

IPD Sharing
Will not share

Locations