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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT04894708
Other study ID # PV7284
Secondary ID
Status Recruiting
Phase N/A
First received
Last updated
Start date October 28, 2020
Est. completion date September 2024

Study information

Verified date June 2023
Source Universitätsklinikum Hamburg-Eppendorf
Contact Thomas Rösch, Prof. Dr.
Phone +49 40 7410
Email t.roesch@uke.de
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial 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.


Description:

Methods of Computer Vision (CV) and Artificial Intelligence (AI) provide completely new opportunities, e.g. in the automatic polyp detection and differentiation of a lesion based on its endoscopic image. Computer vision using artificial intelligence methods means the application of "trained" so-called deep neural net (DNN) with a set of defined images (e.g. everyday scenes) and well-known solutions ( e.g. name of the pictured item; c.f. e.g. the "ImageNet Challenge"). The technical feasibility of using AI algorithms in endoscopy has already been proven in many cases. In the present study, it is an AI system from Fujifilm, which is already clinically usable. By using Fujifilm high-resolution imaging devices in colonoscopies, AI will be added randomly.


Recruitment information / eligibility

Status Recruiting
Enrollment 1572
Est. completion date September 2024
Est. primary completion date May 2024
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 35 Years and older
Eligibility Inclusion Criteria: - 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 Exclusion Criteria: - 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

Study Design


Related Conditions & MeSH terms


Intervention

Procedure:
colonoscopy
addition of polyp detection algorithm by Fujifilm

Locations

Country Name City State
Germany GastroZentrum Lippe Bad Salzuflen
Germany Gastroenterologie am Bayerischen Platz Berlin
Germany University Hospital Bonn Bonn
Germany University Hospital Eppendorf Hamburg
Germany Gastroenterologiepraxis Dr. Moog Kassel Hessen
Germany St. Vinzenz-Hospital / Akademisches Lehrkrankenhaus der Universität zu Köln Köln
Germany Universitätsklinikum Leipzig Leipzig Sachsen
Germany University Hospital Magdeburg Magdeburg
Germany Marienhospital Osnabrück Osnabrück
Germany Asklepios Paulinen Klinik Wiesbaden Wiesbaden

Sponsors (2)

Lead Sponsor Collaborator
Universitätsklinikum Hamburg-Eppendorf FUJIFILM Deutschland, Branch office of FUJIFILM Europe GmbH

Country where clinical trial is conducted

Germany, 

References & Publications (19)

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. — View Citation

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. — View Citation

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. — View Citation

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. — View Citation

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. — View Citation

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. — View Citation

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. — View Citation

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. — View Citation

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. — View Citation

European Colorectal Cancer Screening Guidelines Working Group; von Karsa L, Patnick J, Segnan N, Atkin W, Halloran S, Lansdorp-Vogelaar I, Malila N, Minozzi S, Moss S, Quirke P, Steele RJ, Vieth M, Aabakken L, Altenhofen L, Ancelle-Park R, Antoljak N, Anttila A, Armaroli P, Arrossi S, Austoker J, Banzi R, Bellisario C, Blom J, Brenner H, Bretthauer M, Camargo Cancela M, Costamagna G, Cuzick J, Dai M, Daniel J, Dekker E, Delicata N, Ducarroz S, Erfkamp H, Espinas JA, Faivre J, Faulds Wood L, Flugelman A, Frkovic-Grazio S, Geller B, Giordano L, Grazzini G, Green J, Hamashima C, Herrmann C, Hewitson P, Hoff G, Holten I, Jover R, Kaminski MF, Kuipers EJ, Kurtinaitis J, Lambert R, Launoy G, Lee W, Leicester R, Leja M, Lieberman D, Lignini T, Lucas E, Lynge E, Madai S, Marinho J, Maucec Zakotnik J, Minoli G, Monk C, Morais A, Muwonge R, Nadel M, Neamtiu L, Peris Tuser M, Pignone M, Pox C, Primic-Zakelj M, Psaila J, Rabeneck L, Ransohoff D, Rasmussen M, Regula J, Ren J, Rennert G, Rey J, Riddell RH, Risio M, Rodrigues V, Saito H, Sauvaget C, Scharpantgen A, Schmiegel W, Senore C, Siddiqi M, Sighoko D, Smith R, Smith S, Suchanek S, Suonio E, Tong W, Tornberg S, Van Cutsem E, Vignatelli L, Villain P, Voti L, Watanabe H, Watson J, Winawer S, Young G, Zaksas V, Zappa M, Valori R. European guidelines for quality assurance in colorectal cancer screening and diagnosis: overview and introduction to the full supplement publication. Endoscopy. 2013;45(1):51-9. doi: 10.1055/s-0032-1325997. Epub 2012 Dec 4. — View Citation

Imperiale TF, Glowinski EA, Lin-Cooper C, Larkin GN, Rogge JD, Ransohoff DF. Five-year risk of colorectal neoplasia after negative screening colonoscopy. N Engl J Med. 2008 Sep 18;359(12):1218-24. doi: 10.1056/NEJMoa0803597. Erratum In: N Engl J Med. 2009 Nov 12;361(20):2004. — View Citation

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. — View Citation

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. — View Citation

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. — View Citation

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. — View Citation

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. — View Citation

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. — View Citation

Winawer SJ, Zauber AG, Gerdes H, O'Brien MJ, Gottlieb LS, Sternberg SS, Bond JH, Waye JD, Schapiro M, Panish JF, et al. Risk of colorectal cancer in the families of patients with adenomatous polyps. National Polyp Study Workgroup. N Engl J Med. 1996 Jan 11;334(2):82-7. doi: 10.1056/NEJM199601113340204. — View Citation

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. — View Citation

* Note: There are 19 references in allClick here to view all references

Outcome

Type Measure Description Time frame Safety issue
Primary 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 Patient rate difference Differences in the patient rate with adenomas (adenoma detection rate, i.e. rate of patients with at least one adenoma) during procedure to histological examination result, approximately 2 days
Secondary Adenoma subgroup differences Differences subgroups of adenomas (flat, small, high-grade dysplasia) histological examination result, approximately 2 days
Secondary rate of hyperplastic polyp detection in both groups Differences in the detection of hyperplastic polyps histological examination result, approximately 2 days
Secondary rate of polyp detection in preventive and diagnostic colonoscopy Differences in preventive vs. diagnostic colonoscopy during procedure to histological examination result, approximately 2 days
Secondary Switching number (BLI, LCI) in both groups number of switches to visual support by colour filters during procedure
Secondary incidence of reasons for switching to BLI/LCI reasons for switching to visual support by colour filters during procedure
Secondary quality of polyp detection rate by image evaluation differential diagnosis of colon polyps in both groups with/without CADEYE) until 2 months after recruitment stop
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