NCT00518349

Brief Summary

A prototype colonoscope with an extra passively bending distal section has been developed by Olympus Japan (ref. publications). The present study (2006-2007) is testing refinements of this function.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
120

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Aug 2003

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

August 1, 2003

Completed
4 years until next milestone

First Submitted

Initial submission to the registry

August 17, 2007

Completed
3 days until next milestone

First Posted

Study publicly available on registry

August 20, 2007

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2007

Completed
2 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2009

Completed
8.5 years until next milestone

Results Posted

Study results publicly available

May 29, 2018

Completed
Last Updated

May 29, 2018

Status Verified

September 1, 2017

Enrollment Period

4.3 years

First QC Date

August 17, 2007

Results QC Date

January 7, 2013

Last Update Submit

September 15, 2017

Conditions

Outcome Measures

Primary Outcomes (1)

  • Patient Assessment of Pain Experienced During Colonoscopy

    The proportion of patients reporting "no pain" when examined with prototype or standard colonoscope, respectively. Pain experienced was assessed by the patient in a questionnaire to be filled in at home on the day after the examination and mailed in a pre-paid envelope to a national quality register (Gastronet).

    Pain experienced during colonoscopy

Study Arms (2)

Prototype colonoscope

ACTIVE COMPARATOR

Colonoscopy using prototype colonoscope with passive bending function

Device: Passive bending function

Standard colonoscope

PLACEBO COMPARATOR

Colonoscopy using standard colonoscope with no passive bending function

Device: No passive bending function

Interventions

Colonoscope with a passive bending function

Also known as: passive bending colonoscope
Prototype colonoscope

Examination using standard colonoscope without passive bending function

Also known as: standard colonoscope
Standard colonoscope

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients referred for routine outpatients colonoscopy

You may not qualify if:

  • Pregnant women
  • Age below 18 years

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Gastroenterology section, Dept. of Medicine, Telemark Hospital

Skien, 3710, Norway

Location

Related Publications (2)

  • Hoff G, Moritz V, Bretthauer M, Ludolph T, Huppertz-Hauss G, Paulsen J, Seip B, Sauar J, Kjellevold O, Chengarov L. Colonoscope with a sub-distal hyper-flaccid segment for improved insertion at colonoscopy: a randomized study. Scand J Gastroenterol. 2011 Jan;46(1):104-8. doi: 10.3109/00365521.2010.521891. Epub 2010 Oct 6.

    PMID: 20923378BACKGROUND
  • Hoff G, Bretthauer M, Huppertz-Hauss G, Sauar J, Paulsen J, Dahler S, Kjellevold O. Evaluation of a novel colonoscope designed for easier passage through flexures: a randomized study. Endoscopy. 2005 Nov;37(11):1123-6. doi: 10.1055/s-2005-870444.

MeSH Terms

Conditions

ColitisAdenomaCarcinomaColonic Diseases, Functional

Condition Hierarchy (Ancestors)

GastroenteritisGastrointestinal DiseasesDigestive System DiseasesColonic DiseasesIntestinal DiseasesNeoplasms, Glandular and EpithelialNeoplasms by Histologic TypeNeoplasms

Results Point of Contact

Title
Dr. Geir Hoff
Organization
NorwegianDohsa

Study Officials

  • Geir Hoff, MD, PhD

    Head of Research, Telemark Hospital

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
DIAGNOSTIC
Intervention Model
PARALLEL
Sponsor Type
OTHER GOV
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Head of Research, Telemark Hospital

Study Record Dates

First Submitted

August 17, 2007

First Posted

August 20, 2007

Study Start

August 1, 2003

Primary Completion

December 1, 2007

Study Completion

December 1, 2009

Last Updated

May 29, 2018

Results First Posted

May 29, 2018

Record last verified: 2017-09

Locations