Colon AdenomaNCT03902561
Risk Factors of Poor Bowel Cleansing in Inpatients
An observational study of Colon Adenoma, run by Hospital Universitario de Canarias.
Trial summary
The main purpose of the study is to determine risk factors of poor bowel cleansing in inpatients after a split-dose high volume preparation with 4 liters of polyethylene glycol. The quality of colon cleansing will be measured by the Boston bowel cleansing scale (more than or equal to 2 points in each segment). Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Colon Adenoma
- What is being tested?
- one time colonoscopy in inpatients
- Type of treatment
- Medical device
- How many people
- 400 participants
- Where
- No sites listed yet
- Study dates
- Apr 2019to Feb 2020
- 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
- Healthy volunteers accepted
- Adult, Older adult
Study population: The researchers will offer to participate in the study to inpatients scheduled for colonoscopy who meet all the inclusion criteria and none of the exclusion criteria. The researchers will explain the purpose of the study and will ask to sign the informed consent. They will give verbal and written information on the diet and the bowel cleansing solution to be taken. A questionnaire will be administered about predictors of inadequate bowel cleansing. Activity will be measured by using a pedometer and a physical performance test. Patients will take a liquid diet the day before the examination and they will be prepared with 4 liters of polyethylene glycol in split-dose regimen: 2 liters the evening before the examination (at 19.00 hours) and 2 liters 5 hours before colonoscopy
Who may be able to join
- Inpatients with an indication of a colonoscopy
- Age ≥ 18 years.
Who cannot join
- Patients with previous colon surgery
- Last colonoscopy with poor bowel preparation.
- Ileus, intestinal obstruction, megacolon.
- Poorly controlled hypertension (Systolic and diastolic blood pressure > 180 and > 100, respectively).
- Terminal renal failure (pre-dialysis or dialysis).
- Congestive heart failure (NYHA III-IV).
Show all 10Show fewer
- Acute liver failure.
- Severe psychiatric illness.
- Pregnancy or breastfeeding.
- Refusal to participate in the study.
Trial locations and contacts
No sites are listed yet.
About this study
Official title: Risk Factors of Inadequate Bowel Cleansing in Inpatients: a Predictive Score
The main purpose of the study is to determine risk factors of poor bowel cleansing in inpatients after a split-dose high volume preparation with 4 liters of polyethylene glycol. The quality of colon cleansing will be measured by the Boston bowel cleansing scale (more than or equal to 2 points in each segment). The secondary aim is to design a predictive score of poor bowel cleansing.
Read the detailed description
It is well-known that inpatient status is a risk factor of inadequate bowel preparation. However this is a very mixed group, coexisting multiple factors containing several risk factors, such as elderly, comorbidities, a variety of medications, physical inactivity… Predictive factors in this population are probably different to those identified in outpatients. There is no strong evidence about the influence of these factors on inpatient bowel cleansing.
The researchers will offer to participate in the study to inpatients scheduled for colonoscopy who meet all the inclusion criteria and none of the exclusion criteria. The researchers will explain the purpose of the study and will ask to sign the informed consent. They will give verbal and written information on the diet and the bowel cleansing solution to be taken. A questionnaire will be administered about predictors of inadequate bowel cleansing. Activity will be measured by using a pedometer and a physical performance test.
Patients will take a liquid diet the day before the examination and they will be prepared with 4 liters of polyethylene glycol in split-dose regimen: 2 liters the evening before the examination (at 19.00 hours) and 2 liters 5 hours before colonoscopy The bowel cleansing quality following Boston Bowel Preparation Scale will be assessed by the endoscopist during the colonoscopy.
The aim of this study is to figure out the risk factors of bowel cleansing of inadequate bowel preparation in inpatients.
The inclusion of a maximum of 10 variables in the multivariate analysis will be considered: age, sex, short test of physical performance, Charlson index, indication (urgent or scheduled), polymedication (≥ 5 drugs), exposure to tricyclic antidepressants, calcium antagonists or opioids, constipation (<3 deposits per week and one of the following defecatory efforts), number of steps. For a predetermined percentage of 25% of patients with inadequate preparation, the inclusion of 400 inpatients who undergo a colonoscopy will be required. If we estimate an inclusion of about 10 patients per week, an inclusion period of about 10 months would be required.
- Conditions
- Colon Adenoma
- Being tested
- one time colonoscopy in inpatients
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
one time colonoscopy in inpatientsDevice
Also called 4 liters of Polyethylene glycol bowel preparation
All the inpatients with indication of colonoscopy will be prepared with 4 liters polyethylene glycol bowel cleansing prior to colonoscopy. Colonoscopy will be performed as regular practice under conscious sedation.
What is being measured
The primary outcome is the main question the study is designed to answer.
The validated Boston Bowel Preparation Scale will be used to measure colon cleansing quality
The Boston Bowel Preparation Scale scores cleansing quality from 0 to 3 points per segment (distal colon, transverse colon and right colon). The maximum score is 9 and the lowest 0. A score equal or more than 2 points per segment is considered an adequate preparation for this segment.
Measured: 8 months
Secondary outcomes (1)
To design a predictive score of inadequate bowel preparation [Time Frame: 1 years][Designated as safety issue: No]
Variables independently associated with Bowel cleansing with be used to build a predictive score
Measured: 8 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted4 Apr 2019
- Study startApr 2019 (estimated)
- Primary completionDec 2019 (estimated)
- Study completionFeb 2020 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (4)Papers the sponsor has linked to this study.
- Other trials for Colon AdenomaStudies 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
- Cohort
- Time perspective
- Cross-sectional
- Enrolment
- 400 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Hospital Universitario de Canarias
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Antonio Z Gimeno Garcia, MD, PhD, Principal investigator, Hospital Universitario de Canarias
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03902561
- Sponsor's protocol ID
- ANT-POL-2017-01
- Status last verified
- Apr 2019
- First submitted
- 2 Apr 2019
- Last updated
- 12 Apr 2019
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Gimeno-Garcia AZ, Hernandez G, Aldea A, Nicolas-Perez D, Jimenez A, Carrillo M, Felipe V, Alarcon-Fernandez O, Hernandez-Guerra M, Romero R, Alonso I, Gonzalez Y, Adrian Z, Moreno M, Ramos L, Quintero E. Comparison of Two Intensive Bowel Cleansing Regimens in Patients With Previous Poor Bowel Preparation: A Randomized Controlled Study. Am J Gastroenterol. 2017 Jun;112(6):951-958. doi: 10.1038/ajg.2017.53. Epub 2017 Mar 14.
PubMed 28291237Gimeno-Garcia AZ, Baute JL, Hernandez G, Morales D, Gonzalez-Perez CD, Nicolas-Perez D, Alarcon-Fernandez O, Jimenez A, Hernandez-Guerra M, Romero R, Alonso I, Gonzalez Y, Adrian Z, Carrillo M, Ramos L, Quintero E. Risk factors for inadequate bowel preparation: a validated predictive score. Endoscopy. 2017 Jun;49(6):536-543. doi: 10.1055/s-0043-101683. Epub 2017 Mar 10.
PubMed 28282690Rotondano G, Rispo A, Bottiglieri ME, De Luca L, Lamanda R, Orsini L, Bruzzese D, Galloro G; SIED Campania PISCoPO study group investigators; Romano M, Miranda A, Loguercio C, Esposito P, Nardone G, Compare D, Magno L, Ruggiero S, Imperatore N, De Palma GD, Gennarelli N, Cuomo R, Passananti V, Cirillo M, Cattaneo D, Bozzi RM, D'Angelo V, Marone P, Riccio E, De Nucci C, Monastra S, Caravelli G, Verde C, Di Giorgio P, Giannattasio F, Capece G, Taranto D, De Seta M, Spinosa G, De Stefano S, Familiari V, Cipolletta L, Bianco MA, Sansone S, Galasso G, De Colibus P, Romano M, Borgheresi P, Ricco G, Martorano M, Gravina AG, Marmo R, Rea M, Maurano A, Labianca O, Colantuoni E, Iuliano D, Trovato C, Fontana A, Pasquale L, Morante A, Perugini B, Scaglione G, Mauro B. Quality of bowel cleansing in hospitalized patients undergoing colonoscopy: A multicentre prospective regional study. Dig Liver Dis. 2015 Aug;47(8):669-74. doi: 10.1016/j.dld.2015.04.013. Epub 2015 Apr 25.
PubMed 26028360Yadlapati R, Johnston ER, Gregory DL, Ciolino JD, Cooper A, Keswani RN. Predictors of Inadequate Inpatient Colonoscopy Preparation and Its Association with Hospital Length of Stay and Costs. Dig Dis Sci. 2015 Nov;60(11):3482-90. doi: 10.1007/s10620-015-3761-2. Epub 2015 Jun 21.
PubMed 26093612
Study at a glance
From the registry record, last updated by the sponsor on 12 Apr 2019. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Risk Factors of Inadequate Bowel Cleansing in Inpatients: a Predictive Score
- ClinicalTrials.gov ID
- NCT03902561
- Acronym / sponsor ID
- ANT-POL-2017-01
- Conditions
- Colon Adenoma
- Study type
- Observational
- Recruitment status
- Unknown status
- Enrolment
- 400 participants (estimated)
- Lead sponsor
- Hospital Universitario de CanariasUniversity, hospital or other
- Study start
- Apr 2019 (estimated)
- Primary completion
- Dec 2019 (estimated)
- Study completion
- Feb 2020 (estimated)
- First posted
- 4 Apr 2019 (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.
The main purpose of the study is to determine risk factors of poor bowel cleansing in inpatients after a split-dose high volume preparation with 4 liters of polyethylene glycol. The quality of colon cleansing will be measured by the Boston bowel cleansing scale (more than or equal to 2 points in each segment). The secondary aim is to design a predictive score of poor bowel cleansing.
Detailed description
It is well-known that inpatient status is a risk factor of inadequate bowel preparation. However this is a very mixed group, coexisting multiple factors containing several risk factors, such as elderly, comorbidities, a variety of medications, physical inactivity… Predictive factors in this population are probably different to those identified in outpatients. There is no strong evidence about the influence of these factors on inpatient bowel cleansing.
The researchers will offer to participate in the study to inpatients scheduled for colonoscopy who meet all the inclusion criteria and none of the exclusion criteria. The researchers will explain the purpose of the study and will ask to sign the informed consent. They will give verbal and written information on the diet and the bowel cleansing solution to be taken. A questionnaire will be administered about predictors of inadequate bowel cleansing. Activity will be measured by using a pedometer and a physical performance test.
Patients will take a liquid diet the day before the examination and they will be prepared with 4 liters of polyethylene glycol in split-dose regimen: 2 liters the evening before the examination (at 19.00 hours) and 2 liters 5 hours before colonoscopy The bowel cleansing quality following Boston Bowel Preparation Scale will be assessed by the endoscopist during the colonoscopy.
The aim of this study is to figure out the risk factors of bowel cleansing of inadequate bowel preparation in inpatients.
The inclusion of a maximum of 10 variables in the multivariate analysis will be considered: age, sex, short test of physical performance, Charlson index, indication (urgent or scheduled), polymedication (≥ 5 drugs), exposure to tricyclic antidepressants, calcium antagonists or opioids, constipation (<3 deposits per week and one of the following defecatory efforts), number of steps. For a predetermined percentage of 25% of patients with inadequate preparation, the inclusion of 400 inpatients who undergo a colonoscopy will be required. If we estimate an inclusion of about 10 patients per week, an inclusion period of about 10 months would be required.
Study design
- Observational model
- Cohort
- Time perspective
- Cross-sectional
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
- Study population
- The researchers will offer to participate in the study to inpatients scheduled for colonoscopy who meet all the inclusion criteria and none of the exclusion criteria. The researchers will explain the purpose of the study and will ask to sign the informed consent. They will give verbal and written information on the diet and the bowel cleansing solution to be taken. A questionnaire will be administered about predictors of inadequate bowel cleansing. Activity will be measured by using a pedometer and a physical performance test. Patients will take a liquid diet the day before the examination and they will be prepared with 4 liters of polyethylene glycol in split-dose regimen: 2 liters the evening before the examination (at 19.00 hours) and 2 liters 5 hours before colonoscopy
Key inclusion criteria (2 listed)
- Inpatients with an indication of a colonoscopy
- Age ≥ 18 years.
Key exclusion criteria (10 listed)
- Patients with previous colon surgery
- Last colonoscopy with poor bowel preparation.
- Ileus, intestinal obstruction, megacolon.
- Poorly controlled hypertension (Systolic and diastolic blood pressure > 180 and > 100, respectively).
- Terminal renal failure (pre-dialysis or dialysis).
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 |
|---|---|---|
| one time colonoscopy in inpatientsAlso: 4 liters of Polyethylene glycol bowel preparationAll the inpatients with indication of colonoscopy will be prepared with 4 liters polyethylene glycol bowel cleansing prior to colonoscopy. Colonoscopy will be performed as regular practice under conscious sedation. | Device | – |
Primary outcome
The validated Boston Bowel Preparation Scale will be used to measure colon cleansing quality
Time frame: 8 months
The Boston Bowel Preparation Scale scores cleansing quality from 0 to 3 points per segment (distal colon, transverse colon and right colon). The maximum score is 9 and the lowest 0. A score equal or more than 2 points per segment is considered an adequate preparation for this segment.
1 secondary outcome
To design a predictive score of inadequate bowel preparation [Time Frame: 1 years][Designated as safety issue: No]
Time frame: 8 months
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 12 Apr 2019.
- Results publication: PubMed 28291237Gimeno-Garcia AZ, Hernandez G, Aldea A, Nicolas-Perez D, Jimenez A, Carrillo M, Felipe V, Alarcon-Fernandez O, Hernandez-Guerra M, Romero R, Alonso I, Gonzalez Y, Adrian Z, Moreno M, Ramos L, Quintero E. Comparison of Two Intensive Bowel Cleansing Regimens in Patients With Previous Poor Bowel Preparation: A Randomized Controlled Study. Am J Gastroenterol. 2017 Jun;112(6):951-958. doi: 10.1038/ajg.2017.53. Epub 2017 Mar 14.
- Results publication: PubMed 28282690Gimeno-Garcia AZ, Baute JL, Hernandez G, Morales D, Gonzalez-Perez CD, Nicolas-Perez D, Alarcon-Fernandez O, Jimenez A, Hernandez-Guerra M, Romero R, Alonso I, Gonzalez Y, Adrian Z, Carrillo M, Ramos L, Quintero E. Risk factors for inadequate bowel preparation: a validated predictive score. Endoscopy. 2017 Jun;49(6):536-543. doi: 10.1055/s-0043-101683. Epub 2017 Mar 10.
- Results publication: PubMed 26028360Rotondano G, Rispo A, Bottiglieri ME, De Luca L, Lamanda R, Orsini L, Bruzzese D, Galloro G; SIED Campania PISCoPO study group investigators; Romano M, Miranda A, Loguercio C, Esposito P, Nardone G, Compare D, Magno L, Ruggiero S, Imperatore N, De Palma GD, Gennarelli N, Cuomo R, Passananti V, Cirillo M, Cattaneo D, Bozzi RM, D'Angelo V, Marone P, Riccio E, De Nucci C, Monastra S, Caravelli G, Verde C, Di Giorgio P, Giannattasio F, Capece G, Taranto D, De Seta M, Spinosa G, De Stefano S, Familiari V, Cipolletta L, Bianco MA, Sansone S, Galasso G, De Colibus P, Romano M, Borgheresi P, Ricco G, Martorano M, Gravina AG, Marmo R, Rea M, Maurano A, Labianca O, Colantuoni E, Iuliano D, Trovato C, Fontana A, Pasquale L, Morante A, Perugini B, Scaglione G, Mauro B. Quality of bowel cleansing in hospitalized patients undergoing colonoscopy: A multicentre prospective regional study. Dig Liver Dis. 2015 Aug;47(8):669-74. doi: 10.1016/j.dld.2015.04.013. Epub 2015 Apr 25.
- Results publication: PubMed 26093612Yadlapati R, Johnston ER, Gregory DL, Ciolino JD, Cooper A, Keswani RN. Predictors of Inadequate Inpatient Colonoscopy Preparation and Its Association with Hospital Length of Stay and Costs. Dig Dis Sci. 2015 Nov;60(11):3482-90. doi: 10.1007/s10620-015-3761-2. Epub 2015 Jun 21.
- Individual participant dataSharing planned: No
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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.
Antonio Z Gimeno Garcia, MD, PhD principal investigator
Hospital Universitario de Canarias
Questions about this trial
What is this clinical trial studying?
An observational study of Colon Adenoma, run by Hospital Universitario de Canarias.
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 10 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: status not confirmed, as of the sponsor's last update on 12 Apr 2019. Status can change between updates, so confirm with the study contact before making plans.
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?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact Antonio Z Gimeno García, MD, PhD (922678000 ext. 8039, antozeben@gmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
The validated Boston Bowel Preparation Scale will be used to measure colon cleansing quality (time frame: 8 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 NCT03902561, which also lists 4 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 Apr 2019.