NCT04160104

Brief Summary

Bowel preparation is closely llined to the quality of colonoscopy, inadequate bowel preparation (IBP) could lead to higher miss rate of adenomas, patients' discomfort and higher health expense. For the patients with possible IBP before the examination, it may be better to cancel the colonoscopy and repeat bowel preparation through modified or enhanced strategies. Thus, it is important to set up a model to predict the quality of bowel preparation individually.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
1,600

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Apr 2019

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
unknown

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

April 1, 2019

Completed
7 months until next milestone

First Submitted

Initial submission to the registry

November 8, 2019

Completed
4 days until next milestone

First Posted

Study publicly available on registry

November 12, 2019

Completed
18 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 30, 2019

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2019

Completed
Last Updated

November 12, 2019

Status Verified

November 1, 2019

Enrollment Period

8 months

First QC Date

November 8, 2019

Last Update Submit

November 8, 2019

Conditions

Keywords

Bowel preparationBBPS

Outcome Measures

Primary Outcomes (1)

  • Boston bowel preparation quality scale

    A 10-point scale (0 is worst, 9 is best)

    1 hour

Study Arms (2)

Training cohort

This cohort was used to establish the bowel preparation score (BPS).

Other: Questionnaire

Validation cohort

This cohort was used to verify the bowel preparation score (BPS).

Other: Questionnair

Interventions

Patients were asked to complete a questionnaire before colonoscopy. Bowel preparation was subsequently assessed by single endoscopist in each center using Boston bowel preparation quality score (BBPS). Both univariate and multivariate logistic regression models were used to identify high-risk factors associated with IBP and a predicting model with the bowel preparation score (BPS) was developed in the training cohort.

Training cohort

Patients were asked to complete a questionnaire before colonoscopy. The predicting modle established by the training cohort will be used to assessing the preparation of validation cohort. The result will compared with endoscopists assessment of preparation.

Validation cohort

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

This is a prospective study involving two tertiary-centers in China.

You may qualify if:

  • Patients aged 18-90 years old who undergoing colonoscopy

You may not qualify if:

  • failed colonoscopy because of technical chanllenge or poor tolerance of patients
  • history of colorectal surgery
  • prior finding of severe colonic stricture or obstructing tumor
  • dysphagia
  • compromised swallowing reflex or mental status
  • significant gastroparesis or gastric outlet obstruction or ileum
  • known or suspected bowel obstruction or perforation
  • pregnancy
  • unable to give informed consent

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Endoscopic center, Xijing Hospital of Digestive Diseases

Xi'an, 710032, China

RECRUITING

MeSH Terms

Interventions

Surveys and Questionnaires

Intervention Hierarchy (Ancestors)

Data CollectionEpidemiologic MethodsInvestigative TechniquesHealth Care Evaluation MechanismsQuality of Health CareHealth Care Quality, Access, and EvaluationPublic HealthEnvironment and Public Health

Central Study Contacts

Study Design

Study Type
observational
Observational Model
OTHER
Time Perspective
PROSPECTIVE
Target Duration
7 Days
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associated professor

Study Record Dates

First Submitted

November 8, 2019

First Posted

November 12, 2019

Study Start

April 1, 2019

Primary Completion

November 30, 2019

Study Completion

December 31, 2019

Last Updated

November 12, 2019

Record last verified: 2019-11

Locations