Polyethylene GlycolNCT04290715
Development and Validation for Predicting Inadequate Bowel Preparation
An observational study of Polyethylene Glycol and Cathartics, run by Ningbo No. 1 Hospital at 1 site in China.
Trial summary
High-quality colonoscopy is considered the gold standard for the detection and prevention of colorectal cancer, and its efficacy is predicated on optimal colon cleansing.However, about 18%-35% of patients were still reported to suffer inadequate bowel preparation. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Polyethylene Glycol, Cathartics, Colonoscopy
- How many people
- 1,644 participants
- Where
- 1 siteChina
- Study dates
- 1 Jan 2020to 30 Apr 2021
- 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 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: 1. patients undergoing colonoscopy. 2. patients older than 18 years
Who may be able to join
- patients undergoing colonoscopy.
- patients older than 18 years.
Who cannot join
- Emergency colonoscopy.
- Have a serious medical condition, such as heart failure, acute liver failure, severe kidney disease (dialysis or predialysis patients) or New York heart association class iii-iv.
- Pregnant or breastfeeding.
- No bowel preparation or poor compliance (no bowel preparation as instructed or laxatives < 90% of prescribed dose).
- Refuse to sign informed consent.
- The patient was rescheduled after the previous colonoscopy due to insufficient bowel preparation.
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- Temporarily change to colonoscopy for other reasons.
- Incomplete colonoscopy due to insufficient parenteral preparation.
- Lack of complete data.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Development and Validation for Predicting Inadequate Bowel Preparation Before Colonoscopy in Patients
High-quality colonoscopy is considered the gold standard for the detection and prevention of colorectal cancer, and its efficacy is predicated on optimal colon cleansing.However, about 18%-35% of patients were still reported to suffer inadequate bowel preparation. Although several predictive models exist, the current guideline indicates that there is insufficient evidence to recommend the use of a predictive model for clinical practice.
- Conditions
- Polyethylene Glycol, Cathartics, Colonoscopy
- Being tested
- no intervention
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
no interventionOther
no intervention
| Study group | Role | What they receive |
|---|---|---|
| group A | Not described Receives: Other: no intervention | |
| group I | Not described Receives: Other: no intervention |
What is being measured
The primary outcome is the main question the study is designed to answer.
quality of bowel preparation
The OBPS is a validated scoring system with scores between 0 and 14, where 0 is the best score. The score comprises a sub score 0-4 for each colon segment: right, transverse and rectosigmoid colon. In addition, a score 0-2 is added to indicate the total amount of luminal fluid.
For all participants, OBPS score will be used when the colonscopy is inserting.
Measured: A colonoscopy procedure
quality of bowel preparation
The BBPS is another validated scoring system with scores between 0 and 9, where 9 is the best score. The score comprises a sub score 0-3 for each colon segment: right, transverse and left colon.
For all participants, BBPS score will be used when colonscopy is withdrawing.
Measured: A colonoscopy procedure
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted2 Mar 2020
- Study start1 Jan 2020
- Primary completion30 Apr 2021
- Study completion30 Apr 2021
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Polyethylene GlycolStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Case only
- Time perspective
- Prospective
- Enrolment
- 1,644 participants (actual)
Sponsor and investigators
- Lead sponsor
- Ningbo No. 1 Hospital
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04290715
- Sponsor's protocol ID
- IBPN-V1.0
- Status last verified
- Aug 2021
- First submitted
- 25 Feb 2020
- Last updated
- 30 Aug 2021
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 30 Aug 2021. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Development and Validation for Predicting Inadequate Bowel Preparation Before Colonoscopy in Patients
- ClinicalTrials.gov ID
- NCT04290715
- Acronym / sponsor ID
- IBPN-V1.0
- Conditions
- Polyethylene Glycol, Cathartics, Colonoscopy
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 1,644 participants (actual)
- Lead sponsor
- Ningbo No. 1 HospitalUniversity, hospital or other
- Study start
- 1 Jan 2020 (actual)
- Primary completion
- 30 Apr 2021 (actual)
- Study completion
- 30 Apr 2021 (actual)
- First posted
- 2 Mar 2020 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
High-quality colonoscopy is considered the gold standard for the detection and prevention of colorectal cancer, and its efficacy is predicated on optimal colon cleansing.However, about 18%-35% of patients were still reported to suffer inadequate bowel preparation. Although several predictive models exist, the current guideline indicates that there is insufficient evidence to recommend the use of a predictive model for clinical practice.
Study design
- Observational model
- Case only
- Time perspective
- Prospective
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| group A | – | Other: no intervention |
| group I | – | Other: no intervention |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- 1. patients undergoing colonoscopy. 2. patients older than 18 years
Key inclusion criteria (2 listed)
- patients undergoing colonoscopy.
- patients older than 18 years.
Key exclusion criteria (9 listed)
- Emergency colonoscopy.
- Have a serious medical condition, such as heart failure, acute liver failure, severe kidney disease (dialysis or predialysis patients) or New York heart association class iii-iv.
- Pregnant or breastfeeding.
- No bowel preparation or poor compliance (no bowel preparation as instructed or laxatives < 90% of prescribed dose).
- Refuse to sign informed consent.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| no interventionno intervention | Other | group A, group I |
Primary outcome
quality of bowel preparation
Time frame: A colonoscopy procedure
The OBPS is a validated scoring system with scores between 0 and 14, where 0 is the best score. The score comprises a sub score 0-4 for each colon segment: right, transverse and rectosigmoid colon. In addition, a score 0-2 is added to indicate the total amount of luminal fluid. For all participants, OBPS score will be used when the colonscopy is inserting.
quality of bowel preparation
Time frame: A colonoscopy procedure
The BBPS is another validated scoring system with scores between 0 and 9, where 9 is the best score. The score comprises a sub score 0-3 for each colon segment: right, transverse and left colon. For all participants, BBPS score will be used when colonscopy is withdrawing.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 30 Aug 2021.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Polyethylene Glycol and Cathartics, run by Ningbo No. 1 Hospital at 1 site in China.
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 2 inclusion and 9 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 30 Aug 2021. 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 China. 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?
quality of bowel preparation (time frame: A colonoscopy procedure). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 30 Aug 2021.