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Massive norwegian study aims to slash colon cancer deaths with simple screening

NCT ID NCT00119912

Prevention Sponsor: Norwegian Institute of Public Health Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing This study
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This large study is testing whether a screening procedure called flexible sigmoidoscopy can lower the number of colorectal cancer cases and deaths. About 100,000 men and women aged 50-64 in Norway are taking part. The study also looks at adding a stool blood test and how screening affects overall colonoscopy use in the community.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

100,000 people

The number who actually took part.

Started

Jan 1999

Expected to finish

Dec 2036

An estimate. End dates often move.

Lead sponsor

A government agency

The lead sponsor is a government body.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

50 to 64 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

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

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Conditions

The condition(s) this trial relates to.

adenoma colorectal adenoma colorectal neoplasm neoplasm colorectal cancer prevention target

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Adenoma Colorectal cancer

Contacts and locations

Locations

  • Institute of Population-based Cancer Research

    Oslo, 0310, Norway

More trials for these conditions

Other studies related to the condition(s) this trial covers.