Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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ACTIVE_NOT_RECRUITING
PHASE3
95000 participants
INTERVENTIONAL
2009-05-31
2036-07-31
Brief Summary
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NordICC is a multicentre, randomised trial in Nordic countries, the Netherlands and Poland. A minimum of 66 000 individuals, age 55-64 years, are drawn randomly from the population registries in the participating countries. 22 000 are invited for once-only colonoscopy (2:1 randomisation). Expected work-load with 50% compliance will be 11,000 colonoscopies. At the screening examination, all detected lesions are biopsied and removed whenever possible. The remaining 44 000 individuals (control group) are not offered any screening examination (care as usual).The primary study aims are CRC incidence and CRC mortality after 15 years of follow-up, with an interim analysis after 10 years of follow-up. In an intention-to-treat approach, a risk reduction of CRC mortality of 25% in the colonoscopy screening group compared to the control group is expected after 10 years follow-up, estimating 50% compliance in the screening group.
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Detailed Description
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Conditions
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Study Design
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RANDOMIZED
PARALLEL
PREVENTION
NONE
Study Groups
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Colonoscopy screening
One-time colonoscopy is the screening tool used in this trial. All individuals in the screening group will be offered a full colonoscopy. At colonoscopy, all detected CRC precursor lesions will be removed, whenever possible.
Colonoscopy
Once-only colonoscopy screening
Control
The control group will not be offered any screening or intervention within the trial, but follow usual care in the participating countries. Individuals assigned to the control group will not be informed about their status as controls in the trial. This approach facilitates a truly population-based study, which will be used to estimate the effect of the screening intervention in the general population, mimicking national CRC screening programs.
All ethics committees at the participating centres have approved the study protocol before recruiting individuals to the trial. In Sweden, the national ethics committee particularly reviewed the non-information of the control group and found it ethically acceptable.
No interventions assigned to this group
Interventions
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Colonoscopy
Once-only colonoscopy screening
Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
* Individuals in need of long-lasting attention and nursing services (somatic or psychosocial, mental retardation).
* On-going cytotoxic treatment or radiotherapy for malignant disease
* Severe chronic (longer than trial duration) cardiac (NYHA III-IV)or lung disease
* Lifelong anticoagulant therapy with Warfarin
* A coronary event requiring hospitalization during the last 3 months
* A cerebrovascular event during the last 3 months
* Resident abroad
* Return of unopened letter of invitation and/or reminder (address unknown)
* Message from neighbour/family/post office on death of screenee (not updated in Population Registry)
55 Years
64 Years
ALL
Yes
Sponsors
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Maria Sklodowska-Curie National Research Institute of Oncology
OTHER
Erasmus Medical Center
OTHER
Landspitali University Hospital
OTHER
Uppsala University Hospital
OTHER
Karolinska Institutet
OTHER
Memorial Sloan Kettering Cancer Center
OTHER
Harvard School of Public Health (HSPH)
OTHER
Oslo University Hospital
OTHER
Responsible Party
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Michael Bretthauer
Professor
Principal Investigators
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Hans-Olov Adami, MD PhD
Role: STUDY_DIRECTOR
Harvard School of Public Health, Boston, USA
Michael Bretthauer, MD PhD
Role: PRINCIPAL_INVESTIGATOR
Oslo University Hospital
Michal Filip Kaminski, MD PhD
Role: PRINCIPAL_INVESTIGATOR
Marie Cure Sklodowska Cancer Center
Locations
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Harvard School of Public Health
Boston, Massachusetts, United States
Memorial Sloan-Kettering Cancer Center
New York, New York, United States
Landspitali University Hospital
Reykjavik, , Iceland
Erasmus University Medical Center
Rotterdam, , Netherlands
Oslo University Hospital
Oslo, , Norway
Maria Sklodowska-Curie Memorial Cancer Centre
Warsaw, , Poland
Karolinska Institute
Stockholm, , Sweden
Countries
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References
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Bretthauer M, Loberg M, Wieszczy P, Kalager M, Emilsson L, Garborg K, Rupinski M, Dekker E, Spaander M, Bugajski M, Holme O, Zauber AG, Pilonis ND, Mroz A, Kuipers EJ, Shi J, Hernan MA, Adami HO, Regula J, Hoff G, Kaminski MF; NordICC Study Group. Effect of Colonoscopy Screening on Risks of Colorectal Cancer and Related Death. N Engl J Med. 2022 Oct 27;387(17):1547-1556. doi: 10.1056/NEJMoa2208375. Epub 2022 Oct 9.
Shaukat A, Kahi CJ, Burke CA, Rabeneck L, Sauer BG, Rex DK. ACG Clinical Guidelines: Colorectal Cancer Screening 2021. Am J Gastroenterol. 2021 Mar 1;116(3):458-479. doi: 10.14309/ajg.0000000000001122.
Bretthauer M, Kaminski MF, Loberg M, Zauber AG, Regula J, Kuipers EJ, Hernan MA, McFadden E, Sunde A, Kalager M, Dekker E, Lansdorp-Vogelaar I, Garborg K, Rupinski M, Spaander MC, Bugajski M, Hoie O, Stefansson T, Hoff G, Adami HO; Nordic-European Initiative on Colorectal Cancer (NordICC) Study Group. Population-Based Colonoscopy Screening for Colorectal Cancer: A Randomized Clinical Trial. JAMA Intern Med. 2016 Jul 1;176(7):894-902. doi: 10.1001/jamainternmed.2016.0960.
Pisera M, Kaminski MF, Kraszewska E, Rupinski M, Regula J. Reinvitation to screening colonoscopy: a randomized-controlled trial of reminding letter and invitation to educational meeting on attendance in nonresponders to initial invitation to screening colonoscopy (REINVITE). Eur J Gastroenterol Hepatol. 2016 May;28(5):538-42. doi: 10.1097/MEG.0000000000000578.
Kaminski MF, Bretthauer M, Zauber AG, Kuipers EJ, Adami HO, van Ballegooijen M, Regula J, van Leerdam M, Stefansson T, Pahlman L, Dekker E, Hernan MA, Garborg K, Hoff G. The NordICC Study: rationale and design of a randomized trial on colonoscopy screening for colorectal cancer. Endoscopy. 2012 Jul;44(7):695-702. doi: 10.1055/s-0032-1306895. Epub 2012 Jun 21.
Other Identifiers
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NordICC
Identifier Type: -
Identifier Source: org_study_id
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