At a glance

ClinicalIndex Comparison Record

N/AActive· 100,000 enrolled

Drug / intervention

A 1 Intervention arm Flex Sig +1 moreprocedure

Likely dose

Not stated in record

Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT00119912

NCT00119912N/AActive

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Norwegian Colorectal Cancer Prevention Trial

Norwegian Institute of Public Health·interventional·Posted Jul 14, 2005·Updated Apr 14, 2026

In Brief

A clinical study evaluating A 1 Intervention arm Flex Sig and A 2 Intervention arm Flex Sig + iFOBT for Colorectal Cancer and Adenoma. Active but no longer recruiting, targeting 100,000 participants across 1 site.

Detailed Summary

The purpose of this study is to see if screening with flexible sigmoidoscopy (a flexible viewing tube) may reduce large bowel cancer and cancer deaths. The researchers also want to see if the addition of screening for occult blood in stools may contribute further to this aim. Additionally, the researchers also want to see to which extent (and in which direction) the study may influence overall endoscopic activity in the general population in the screening area and in areas where controlled screening is not established.

Study Details

Study Typeinterventional

Allocation--

Masking--

Primary Purpose--

ConditionsColorectal Cancer, Adenoma

CountriesNorway

CollaboratorsNorwegian Cancer Society

Timeline

N/AActive

1998199920002001200220032004200520062007200820092010201120122013201420152016201720182019202020212022202320242025202620272028202920302031203220332034203520362037

Enrollment StartJan 1999

First PostedJul 2005

TodayJul 2026

Primary CompletionDec 2036

First PostedJul 14, 2005

Enrollment StartJan 1, 1999

Primary CompletionDec 1, 2036

TodayJul 2, 2026

Enrollment to primary: 37.9 yearsPosted 21.0 years agoPrimary completion in 10.4 years

Interventions

A 1 Intervention arm Flex Sigprocedure

Screening by flexible sigmoidoscopy

A 2 Intervention arm Flex Sig + iFOBTprocedure

In addition to Flexible Sigmoidoscopy, half of arm A (randomised 1:1) is invited to provide stool samples for FOBT