- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00119912
NORCCAP: Norwegian Colorectal Cancer Prevention Trial
Norwegian Colorectal Cancer Prevention Trial
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Although flexible sigmoidoscopy (FS) as a screening tool has a much higher test sensitivity than fecal occult blood tests (FOBT) for colorectal cancer and high-risk adenomas, randomised trials with long-term follow-up are missing. The primary aim is to evaluate the effect on CRC mortality and morbidity by screen detection of CRC and removal of precursor lesions (polypectomy of adenomatous polyps)
Secondary aims:
- Evaluation of cost/effectiveness of screening for CRC and significant, benign lesions using flex-sig only compared to flex-sig in combination with faecal tests
- To evaluate to which extent (and in which direction) the study may influence overall endoscopic activity in the general population in the screening areas and in areas where controlled screening is not established
- Determine the prevalence of known types familial CRC in a general population and try to define other groups with intermediate increased risk
- Clarify possible psychosocial effects of endoscopic screening and how it may influence lifestyle and lifestyle related morbidity and overall mortality
Population:
21,000 men and women, aged 50-64 years, living in the city of Oslo or the county of Telemark are drawn by randomisation (approx. 1:5) from the population registry and invited to have a flexible sigmoidoscopy examination. The control group constitutes 79,000 individuals. Those invited for flexible sigmoidoscopy are further randomised (1:1) to bring or not to bring 3 successive stool samples for FOBT on attendance for FS.
Method:
This is a once-only screening concept with bowel cleansing being limited to a 240 ml Sorbitol enema given on attendance. The threshold for work-up colonoscopy is low as a positive screening test is defined as any polyp >9mm, any histologically verified adenoma irrespective of size and a positive FOBT. The screening phase is limited to the period January 1999- January 2002 and the first follow-up results will not be reported until all entries have passed the 5-year mark (i.e. in early 2007).
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
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Oslo, Norway, 0310
- Institute of Population-based Cancer Research
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Men and women
- Living in Oslo or Telemark
- Age 50-64 years
Exclusion Criteria:
- Patients with previous open colorectal surgery (resections, enterostomies)
- Individuals in need of long lasting attention and nursing services (somatic or psychosocial reasons, mental retardation)
- On-going cytotoxic treatment or radiotherapy for malignant disease
- Severe chronic cardiac or lung disease (NYHA III-IV)
- Patients with heart valve replacement on life long anticoagulant therapy
- A coronary event during the last 3 months if having lead to hospitalisation
- Cerebrovascular accident during the last 3 months
- Resident abroad
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Prevention
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
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Active Comparator: A 1 Intervention arm Flex Sig
Randomised from the population registry, age 50-64 years and invited for Flexible Sigmoidoscopy (Flex Sig) screening.
Half of invitees are additionally invited to provide a stool sample for fecal occult blood testing (Intervention arm A 2).
They are drawn directly from the population registry without prior consent to be randomized - approved by Regional Ethics Committees of South-East Norway..
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Screening by flexible sigmoidoscopy
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No Intervention: B Control arm
"No screening group" randomised from population age 50-64 years.
As for the active intervention arm, the control group was not informed about being randomized to 'no screening' since 'no screening' was the current usual care (and still is in 2015) in Norway - approved by Regional Ethics Committees of South-East Norway.
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Active Comparator: A 2 Intervention arm Flex Sig + iFOBT
Randomised from the population registry, age 50-64 years and invited for Flexible Sigmoidoscopy (Flex Sig) screening plus an immunochemical test for fecal occult blood (iFOBT).
As for arms A 1 and B, they are drawn directly from the population registry without prior consent to be randomized.
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In addition to Flexible Sigmoidoscopy, half of arm A (randomised 1:1) is invited to provide stool samples for FOBT
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
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1. Evaluate the effect on CRC mortality and morbidity by screen detection of CRC and removal of precursor lesions (polypectomy of adenomatous polyps).First evaluation after 5 years.
Time Frame: Evaluations in 2007 (published),2012,2017
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CRC incidence and mortality is followed
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Evaluations in 2007 (published),2012,2017
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
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1. Determine the prevalence of known types familial CRC in a general population and try to define other groups with intermediate increased risk. Results "in press" 2005.
Time Frame: Evaluated in 2005 (published)
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Determine the prevalence of familial CRC in a general population sample
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Evaluated in 2005 (published)
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2. Clarify possible psychosocial effects of endoscopic screening and how it may influence lifestyle and lifestyle related morbidity and overall mortality. Evaluation in 2005.
Time Frame: Evaluated in 2005 (published)
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Determine psychosocial effects of invitation to screening and of screening findings
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Evaluated in 2005 (published)
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Collaborators and Investigators
Collaborators
Investigators
- Study Chair: Giske Ursin, M.D., Institute of Population-based Cancer Research
Publications and helpful links
General Publications
- Holme O, Loberg M, Kalager M, Bretthauer M, Hernan MA, Aas E, Eide TJ, Skovlund E, Schneede J, Tveit KM, Hoff G. Effect of flexible sigmoidoscopy screening on colorectal cancer incidence and mortality: a randomized clinical trial. JAMA. 2014 Aug 13;312(6):606-15. doi: 10.1001/jama.2014.8266. Erratum In: JAMA. 2014 Sep 3;312(9):964.
- Hoff G, Grotmol T, Skovlund E, Bretthauer M; Norwegian Colorectal Cancer Prevention Study Group. Risk of colorectal cancer seven years after flexible sigmoidoscopy screening: randomised controlled trial. BMJ. 2009 May 29;338:b1846. doi: 10.1136/bmj.b1846.
- Holme O, Bretthauer M, Eide TJ, Loberg EM, Grzyb K, Loberg M, Kalager M, Adami HO, Kjellevold O, Hoff G. Long-term risk of colorectal cancer in individuals with serrated polyps. Gut. 2015 Jun;64(6):929-36. doi: 10.1136/gutjnl-2014-307793. Epub 2014 Nov 16.
- Berstad P, Loberg M, Larsen IK, Kalager M, Holme O, Botteri E, Bretthauer M, Hoff G. Long-term lifestyle changes after colorectal cancer screening: randomised controlled trial. Gut. 2015 Aug;64(8):1268-76. doi: 10.1136/gutjnl-2014-307376. Epub 2014 Sep 2.
- Larsen IK, Grotmol T, Almendingen K, Hoff G. Impact of colorectal cancer screening on future lifestyle choices: a three-year randomized controlled trial. Clin Gastroenterol Hepatol. 2007 Apr;5(4):477-83. doi: 10.1016/j.cgh.2006.12.011. Epub 2007 Mar 23.
- Larsen IK, Grotmol T, Almendingen K, Hoff G. Lifestyle as a predictor for colonic neoplasia in asymptomatic individuals. BMC Gastroenterol. 2006 Jan 13;6:5. doi: 10.1186/1471-230X-6-5.
- Larsen IK, Grotmol T, Almendingen K, Hoff G. Lifestyle characteristics among participants in a Norwegian colorectal cancer screening trial. Eur J Cancer Prev. 2006 Feb;15(1):10-9. doi: 10.1097/01.cej.0000186636.27496.bb.
- Stormorken AT, Hoff G, Norstein J, Bowitz-Lothe IM, Hanslien E, Grindedal E, Moller P. Estimated prevalence of hereditary cancers and the need for surveillance in a Norwegian county, Telemark. Scand J Gastroenterol. 2006 Jan;41(1):71-9. doi: 10.1080/00365520510023891.
- Gondal G, Grotmol T, Hofstad B, Bretthauer M, Eide TJ, Hoff G. Biopsy of colorectal polyps is not adequate for grading of neoplasia. Endoscopy. 2005 Dec;37(12):1193-7. doi: 10.1055/s-2005-921031.
- Gondal G, Grotmol T, Hofstad B, Bretthauer M, Eide TJ, Hoff G. Lifestyle-related risk factors and chemoprevention for colorectal neoplasia: experience from the large-scale NORCCAP screening trial. Eur J Cancer Prev. 2005 Aug;14(4):373-9. doi: 10.1097/00008469-200508000-00010.
- Skovlund E, Bretthauer M, Grotmol T, Larsen IK, Hoff G. Sensitivity of pain rating scales in an endoscopy trial. Clin J Pain. 2005 Jul-Aug;21(4):292-6. doi: 10.1097/01.ajp.0000110636.14355.3e.
- Hoff G, Grotmol T, Thiis-Evensen E, Bretthauer M, Gondal G, Vatn MH. Testing for faecal calprotectin (PhiCal) in the Norwegian Colorectal Cancer Prevention trial on flexible sigmoidoscopy screening: comparison with an immunochemical test for occult blood (FlexSure OBT). Gut. 2004 Sep;53(9):1329-33. doi: 10.1136/gut.2004.039032.
- Bretthauer M, Skovlund E, Grotmol T, Thiis-Evensen E, Gondal G, Huppertz-Hauss G, Efskind P, Hofstad B, Thorp Holmsen S, Eide TJ, Hoff G. Inter-endoscopist variation in polyp and neoplasia pick-up rates in flexible sigmoidoscopy screening for colorectal cancer. Scand J Gastroenterol. 2003 Dec;38(12):1268-74. doi: 10.1080/00365520310006513.
- Bretthauer M, Hoff GS, Thiis-Evensen E, Huppertz-Hauss G, Skovlund E. Air and carbon dioxide volumes insufflated during colonoscopy. Gastrointest Endosc. 2003 Aug;58(2):203-6. doi: 10.1067/mge.2003.340.
- Gondal G, Grotmol T, Hofstad B, Bretthauer M, Eide TJ, Hoff G. The Norwegian Colorectal Cancer Prevention (NORCCAP) screening study: baseline findings and implementations for clinical work-up in age groups 50-64 years. Scand J Gastroenterol. 2003 Jun;38(6):635-42. doi: 10.1080/00365520310003002.
- Bretthauer M, Jorgensen A, Kristiansen BE, Hofstad B, Hoff G. Quality control in colorectal cancer screening: systematic microbiological investigation of endoscopes used in the NORCCAP (Norwegian Colorectal Cancer Prevention) trial. BMC Gastroenterol. 2003 Jun 13;3:15. doi: 10.1186/1471-230X-3-15.
- Bretthauer M, Hoff G. The use of CO2 in colonoscopy. Gastrointest Endosc. 2003 Mar;57(3):436-7; author reply 437-8. doi: 10.1067/mge.2003.108. No abstract available.
- Gondal G, Grotmol T, Hofstad B, Bretthauer M, Eide TJ, Hoff G. Grading of distal colorectal adenomas as predictors for proximal colonic neoplasia and choice of endoscope in population screening: experience from the Norwegian Colorectal Cancer Prevention study (NORCCAP). Gut. 2003 Mar;52(3):398-403. doi: 10.1136/gut.52.3.398.
- Bretthauer M, Hoff G, Thiis-Evensen E, Grotmol T, Holmsen ST, Moritz V, Skovlund E. Carbon dioxide insufflation reduces discomfort due to flexible sigmoidoscopy in colorectal cancer screening. Scand J Gastroenterol. 2002 Sep;37(9):1103-7. doi: 10.1080/003655202320378329.
- Bretthauer M, Hoff G, Thiis-Evensen E, Grotmol T, Larsen IK, Kjellevold O, Skovlund E. Use of a disposable sheath system for flexible sigmoidoscopy in decentralized colorectal cancer screening. Endoscopy. 2002 Oct;34(10):814-8. doi: 10.1055/s-2002-34273.
- Larsen IK, Grotmol T, Bretthauer M, Gondal G, Huppertz-Hauss G, Hofstad B, Efskind P, Jorgensen A, Hoff G. Continuous evaluation of patient satisfaction in endoscopy centres. Scand J Gastroenterol. 2002 Jul;37(7):850-5.
- Bretthauer M, Gondal G, Larsen K, Carlsen E, Eide TJ, Grotmol T, Skovlund E, Tveit KM, Vatn MH, Hoff G. Design, organization and management of a controlled population screening study for detection of colorectal neoplasia: attendance rates in the NORCCAP study (Norwegian Colorectal Cancer Prevention). Scand J Gastroenterol. 2002 May;37(5):568-73. doi: 10.1080/00365520252903125.
- Bretthauer M, Thiis-Evensen E, Huppertz-Hauss G, Gisselsson L, Grotmol T, Skovlund E, Hoff G. NORCCAP (Norwegian colorectal cancer prevention): a randomised trial to assess the safety and efficacy of carbon dioxide versus air insufflation in colonoscopy. Gut. 2002 May;50(5):604-7. doi: 10.1136/gut.50.5.604.
- Jodal HC, Loberg M, Holme O, Adami HO, Bretthauer M, Emilsson L, Ransohoff DF, Hoff G, Kalager M. Mortality From Postscreening (Interval) Colorectal Cancers Is Comparable to That From Cancer in Unscreened Patients-A Randomized Sigmoidoscopy Trial. Gastroenterology. 2018 Dec;155(6):1787-1794.e3. doi: 10.1053/j.gastro.2018.08.035. Epub 2018 Aug 27.
- Holme O, Loberg M, Kalager M, Bretthauer M, Hernan MA, Aas E, Eide TJ, Skovlund E, Lekven J, Schneede J, Tveit KM, Vatn M, Ursin G, Hoff G; NORCCAP Study Groupdagger. Long-Term Effectiveness of Sigmoidoscopy Screening on Colorectal Cancer Incidence and Mortality in Women and Men: A Randomized Trial. Ann Intern Med. 2018 Jun 5;168(11):775-782. doi: 10.7326/M17-1441. Epub 2018 Apr 24.
- Berstad P, Botteri E, Larsen IK, Loberg M, Kalager M, Holme O, Bretthauer M, Hoff G. Lifestyle changes at middle age and mortality: a population-based prospective cohort study. J Epidemiol Community Health. 2017 Jan;71(1):59-66. doi: 10.1136/jech-2015-206760. Epub 2016 Jun 16.
- Swanson SA, Holme O, Loberg M, Kalager M, Bretthauer M, Hoff G, Aas E, Hernan MA. Bounding the per-protocol effect in randomized trials: an application to colorectal cancer screening. Trials. 2015 Nov 30;16:541. doi: 10.1186/s13063-015-1056-8.
- Riedel BM, Molloy AM, Meyer K, Fredriksen A, Ulvik A, Schneede J, Nexo E, Hoff G, Ueland PM. Transcobalamin polymorphism 67A->G, but not 776C->G, affects serum holotranscobalamin in a cohort of healthy middle-aged men and women. J Nutr. 2011 Oct;141(10):1784-90. doi: 10.3945/jn.111.141960. Epub 2011 Aug 24.
- Hoff G, Bretthauer M. Appointments timed in proximity to annual milestones and compliance with screening: randomised controlled trial. BMJ. 2008 Dec 17;337:a2794. doi: 10.1136/bmj.a2794.
Helpful Links
Study record dates
Study Major Dates
Study Start
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Digestive System Diseases
- Neoplasms by Histologic Type
- Neoplasms
- Neoplasms by Site
- Neoplasms, Glandular and Epithelial
- Gastrointestinal Neoplasms
- Digestive System Neoplasms
- Gastrointestinal Diseases
- Colonic Diseases
- Intestinal Diseases
- Intestinal Neoplasms
- Rectal Diseases
- Colorectal Neoplasms
- Adenoma
Other Study ID Numbers
- NORCCAP-1
- Shdir 97/08614 (Other Identifier: Norwegian Department of Health)
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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