AzTrials
AzTrials

Colorectal CancerNCT00860665

Case Volume and Adenoma Rate During Screening Colonoscopy

An observational study of Colorectal Cancer, run by Charite University, Berlin, Germany at 1 site in Germany.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

Screening colonoscopy has been established as the most effective means of colorectal cancer prevention. This is based on the fact that colonoscopy detects and removes colonic polyps (adenomas) which are known to progress to cancer if left untreated. Read more about this study

Who is it for?
Ages 55 to 85 years
Conditions the study is for
Colorectal Cancer
How many people
12,134 participants
Where
1 siteGermany
Study dates
Oct 2006to Mar 2009
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 55 to 85 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: In Germany screening colonoscopy is reimbursed over the age of 55 years. All persons willing to undergo screening colonsocopy without contraindications are asked for consent to be included

Who may be able to join

  • all persons willing and able to undergo screening colonoscopy over the age of 55 years

Who cannot join

  • any condition not compatible with the definition of screening colonoscopy

Trial locations and contacts

1 site in 1 country.

Germany1 site
  • Charité Medical University Berlin Campus Virchow

    Berlin, State of Berlin, 13353

Other trials in Germany

About this study

Official title: Case Volume and Adenoma Detection Rates During Screening Colonoscopy

Screening colonoscopy has been established as the most effective means of colorectal cancer prevention. This is based on the fact that colonoscopy detects and removes colonic polyps (adenomas) which are known to progress to cancer if left untreated. The present study examines the question whether case volume (i.e., the number of colonoscopies performed per year) correlates with colonoscopy quality, i.e., adenoma detection rate.

Read the detailed description

21 private practice gastroenterologist endoscopists from Berlin performed a prospective quality assessment study including at least 10.000 screening colonoscopies. After informed consent, patients data are included (age, sex, family history, colonoscopy performance parameters and findings, therapy performed, histology of biopsies and/or polypectomies, complications (immediate and late) and patient acceptance. The latter was retrieved by patient questionnaires returned after a minimum of 2 weeks. Data were centrally collected in an anonymized way

Primary outcome parameter:

  • Correlation of adenoma detection rate with case volume and other confounding factors (e.g., withdrawal time)

Secondary outcome parameters:

  • Complications and method of assessment (immediate recording versus later questionnaire enquiry)
  • Quality of bowel preparation in relation to outcome Patient acceptance in relation to procedural factors (e.g., sedation)
  • Quality of pathology reports and histologic outcome of polypectomy

Later follow-up (after 5-10 years) of the preventive effect of colonoscopy is planned and has been part of the protocol and patient consent form.

Keywords
colorectal cancer, prevention, colonoscopy, screening, quality assessment, colorectal cancer prevention
Medical subject headings
Colorectal Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT00860665
Study groupRoleWhat they receive
1Observational study on consecutive persons over the age of 55 years presenting for screening colonoscopy

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Correlation of adenoma detection rate with case volume of endoscopists

    Measured: 18 months

Secondary outcomes (1)
  1. Patient acceptance in relation to procedural factors (e.g. sedation)

    Measured: 18 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted12 Mar 2009 (estimated)
  2. Study startOct 2006
  3. Primary completionMar 2008
  4. Study completionMar 2009

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
12,134 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00860665
Sponsor's protocol ID
BECOP-3
Status last verified
Mar 2009
First submitted
11 Mar 2009
Last updated
12 Mar 2009
Results posted
No
Data monitoring committee
No

Publications

  • Adler A, Lieberman D, Aminalai A, Aschenbeck J, Drossel R, Mayr M, Mross M, Scheel M, Schroder A, Keining C, Stange G, Wiedenmann B, Gauger U, Altenhofen L, Rosch T. Data quality of the German screening colonoscopy registry. Endoscopy. 2013 Oct;45(10):813-8. doi: 10.1055/s-0033-1344583. Epub 2013 Sep 9.

    PubMed 24019130
  • 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.

    PubMed 22442161
  • 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.

    PubMed 22056301

Questions about this trial

What is this clinical trial studying?

An observational study of Colorectal Cancer, run by Charite University, Berlin, Germany at 1 site in Germany.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 12 Mar 2009. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Germany. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Correlation of adenoma detection rate with case volume of endoscopists (time frame: 18 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00860665, which also lists 3 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 12 Mar 2009.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in