NCT04702646

Brief Summary

The main purpose of the study is to determine the agreement between colon cleansing quality assessed by a validated scale (Boston Bowel Preparation Scale, BBPS) and the perception of the patient. Patients will be prepared with polyethylene glycol (PEG), PEG plus ascorbic acid (PEG-Asc) or sodium picosulfate-oxide magnesium solution (PS). The secondary aim is to assess predictors of poor bowel cleansing.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
1,011

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Feb 2021

Shorter than P25 for all trials

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

First Submitted

Initial submission to the registry

January 7, 2021

Completed
4 days until next milestone

First Posted

Study publicly available on registry

January 11, 2021

Completed
1 month until next milestone

Study Start

First participant enrolled

February 17, 2021

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 31, 2021

Completed
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

September 30, 2021

Completed
Last Updated

September 21, 2022

Status Verified

September 1, 2022

Enrollment Period

3 months

First QC Date

January 7, 2021

Last Update Submit

September 19, 2022

Conditions

Outcome Measures

Primary Outcomes (1)

  • Quality of bowel cleansing

    Quality of bowel cleansing assessed by the Boston Bowel Preparation Scale. This scale goes from 0 (no preparation) to 3 points (excellent preparation) in the three segments of the colon (proximal, transverse and distal). The maximum score is 9 points

    [Time frame: 1 years][Designated as safety issue: No]

Secondary Outcomes (2)

  • Predictive factors associated to an adequate bowel cleansing

    [Time Frame: 1 years][Designated as safety issue: No]

  • Test the correlation between 3 sets of pictures and the cleansing quality following the Boston Bowel Preparation Scale

    [Time Frame: 6 months][Designated as safety issue: No]

Study Arms (1)

Consecutive patients for outpatient colonoscopy

The researchers will offer to participate in the study to patients scheduled for a colonoscopy who meet all the inclusion criteria and none of the exclusion criteria

Drug: Bowel preparation before colonoscopyProcedure: Colonoscopy

Interventions

one day liquid diet will be administered to every patient included in the study and: split-dose bowel preparation with 4 Liters of Polyethylene glycol solution, 2 Liters of PEG-Ascorbic acid or 2 Liters Picosulfate.

Consecutive patients for outpatient colonoscopy
ColonoscopyPROCEDURE

colonoscopy will be performed to every patient included in the study

Consecutive patients for outpatient colonoscopy

Eligibility Criteria

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

The researchers will offer to participate in the study to patients scheduled for a 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.

You may qualify if:

  • Age \>18,
  • to sign the informed consent
  • patients with indication of outpatient colonoscopy
  • patient ingesting preparation

You may not qualify if:

  • Last colonoscopy with poor bowel preparation.
  • Ileus, intestinal obstruction, megacolon.
  • Poorly controlled hypertension (systolic hypertension\> 180mmHg, dyastolic hypertension\> 100mmHg).
  • Terminal renal failure (pre-dialysis or dialysis).
  • Congestive heart failure (NYHA III-IV).
  • Acute liver failure.
  • Severe psychiatric illness.
  • Dementia with difficulty in the intake of the preparation.
  • Pregnancy or breastfeeding.
  • Refusal to participate in the study.
  • Allergies.
  • Not looking at the characteristics of the last stool.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Gastroenterology

San Cristóbal de La Laguna, S/C de Tenerife, 38320, Spain

Location

Related Publications (6)

  • Fatima H, Johnson CS, Rex DK. Patients' description of rectal effluent and quality of bowel preparation at colonoscopy. Gastrointest Endosc. 2010 Jun;71(7):1244-1252.e2. doi: 10.1016/j.gie.2009.11.053. Epub 2010 Apr 1.

    PMID: 20362286BACKGROUND
  • Harewood GC, Wright CA, Baron TH. Assessment of patients' perceptions of bowel preparation quality at colonoscopy. Am J Gastroenterol. 2004 May;99(5):839-43. doi: 10.1111/j.1572-0241.2004.04176.x.

    PMID: 15128347BACKGROUND
  • ASGE Technology Committee; Mamula P, Adler DG, Conway JD, Diehl DL, Farraye FA, Kantsevoy SV, Kaul V, Kethu SR, Kwon RS, Rodriguez SA, Tierney WM. Colonoscopy preparation. Gastrointest Endosc. 2009 Jun;69(7):1201-9. doi: 10.1016/j.gie.2009.01.035. No abstract available.

    PMID: 19481646BACKGROUND
  • Hassan C, East J, Radaelli F, Spada C, Benamouzig R, Bisschops R, Bretthauer M, Dekker E, Dinis-Ribeiro M, Ferlitsch M, Fuccio L, Awadie H, Gralnek I, Jover R, Kaminski MF, Pellise M, Triantafyllou K, Vanella G, Mangas-Sanjuan C, Frazzoni L, Van Hooft JE, Dumonceau JM. Bowel preparation for colonoscopy: European Society of Gastrointestinal Endoscopy (ESGE) Guideline - Update 2019. Endoscopy. 2019 Aug;51(8):775-794. doi: 10.1055/a-0959-0505. Epub 2019 Jul 11.

    PMID: 31295746BACKGROUND
  • Hassan C, Fuccio L, Bruno M, Pagano N, Spada C, Carrara S, Giordanino C, Rondonotti E, Curcio G, Dulbecco P, Fabbri C, Della Casa D, Maiero S, Simone A, Iacopini F, Feliciangeli G, Manes G, Rinaldi A, Zullo A, Rogai F, Repici A. A predictive model identifies patients most likely to have inadequate bowel preparation for colonoscopy. Clin Gastroenterol Hepatol. 2012 May;10(5):501-6. doi: 10.1016/j.cgh.2011.12.037. Epub 2012 Jan 10.

    PMID: 22239959BACKGROUND
  • Hernandez G, Gimeno-Garcia AZ, Quintero E. Strategies to Improve Inadequate Bowel Preparation for Colonoscopy. Front Med (Lausanne). 2019 Nov 8;6:245. doi: 10.3389/fmed.2019.00245. eCollection 2019.

    PMID: 31781565BACKGROUND

MeSH Terms

Interventions

Colonoscopy

Intervention Hierarchy (Ancestors)

Endoscopy, GastrointestinalEndoscopy, Digestive SystemDiagnostic Techniques, Digestive SystemDiagnostic Techniques and ProceduresDiagnosisEndoscopyDiagnostic Techniques, SurgicalDigestive System Surgical ProceduresSurgical Procedures, OperativeMinimally Invasive Surgical Procedures

Study Officials

  • Antonio Z Gimeno Garcia, MD, PhD

    Hospital Universitario de Canarias

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 7, 2021

First Posted

January 11, 2021

Study Start

February 17, 2021

Primary Completion

May 31, 2021

Study Completion

September 30, 2021

Last Updated

September 21, 2022

Record last verified: 2022-09

Locations