NCT03830489

Brief Summary

This is a single center randomized controlled trial to compare the colon cleansing quality determined by the Boston Bowel Preparation Scale achieved by two strategies in patients with high risk of poor colon cleansing defined as those patients with a score\> 1.225 following a predictive score previously published: one group will receive an intensified split-dose 4 L polyethylene glycol solution (PEG) plus bisacodyl and 3 days of fiber-free diet and the other group a split-dose 2 L PEG solution with ascorbic plus bisacodyl and 1 day of fiber-free diet. Patients with a score ≤ 1.225 will receive a split-dose 2 L PEG solution with ascorbic plus bisacodyl and 1 day of fiber-free diet.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
260

participants targeted

Target at P75+ for phase_4

Timeline
Completed

Started Feb 2019

Shorter than P25 for phase_4

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

February 2, 2019

Completed
2 days until next milestone

Study Start

First participant enrolled

February 4, 2019

Completed
1 day until next milestone

First Posted

Study publicly available on registry

February 5, 2019

Completed
9 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 21, 2019

Completed
9 days until next milestone

Study Completion

Last participant's last visit for all outcomes

October 30, 2019

Completed
Last Updated

March 13, 2020

Status Verified

March 1, 2020

Enrollment Period

9 months

First QC Date

February 2, 2019

Last Update Submit

March 11, 2020

Conditions

Keywords

Cleansing quality scoreColonoscopy

Outcome Measures

Primary Outcomes (1)

  • 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

    8 months

Secondary Outcomes (2)

  • Proportion of polyps detected in each arm

    8 months

  • Tolerance to bowel preparation

    8 months

Study Arms (2)

Large volume based preparation

EXPERIMENTAL

This strategy will consist of split dose 4 L polyethylene glycol plus 10 mg bisacodyl plus 3 days of fiber-free diet.

Drug: polyethylene glycol

Low volume based preparation

ACTIVE COMPARATOR

This strategy will consist of split dose 2 L polyethylene glycol plus Ascorbic acid plus 1 day of fiber-free diet

Drug: polyethylene glycol plus ascorbic acid

Interventions

The experimental arm will take 4 L polyethylene glycol solution (PEG) in split dose plus bisacodyl and 3 days of fiber-free diet

Large volume based preparation

The control arm will take 2 L polyethylene glycol solution (PEG) plus ascorbic acid in split dose plus 1 day of fiber-free diet

Low volume based preparation

Eligibility Criteria

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

You may qualify if:

  • Age ≥ 18 years
  • Outpatient colonoscopy
  • Willing to participate (informed consent signed).

You may not qualify if:

  • Intestinal perforation
  • Poorly controlled arterial hypertension (HTAS\> 180 HTAD\> 100)
  • Congestive heart failure
  • NYHA III-IV
  • Acute hepatic failure
  • End-stage renal disease (creatinine \<15 ml / min dialysis or pre-dialysis)
  • Pregnancy or breastfeeding
  • Known hypersensitivity reaction to drug components
  • Phenylketonuria or Glucose-6-phosphate dehydrogenase deficiency
  • Dementia with difficulty in intake of Preparation
  • Past history of poor bowel preparation colonic cleanliness
  • Inability to follow the instructions

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)

  • 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.

  • Gimeno-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.

  • Dik VK, Moons LM, Huyuk M, van der Schaar P, de Vos Tot Nederveen Cappel WH, Ter Borg PC, Meijssen MA, Ouwendijk RJ, Le Fevre DM, Stouten M, van der Galien O, Hiemstra TJ, Monkelbaan JF, van Oijen MG, Siersema PD; Colonoscopy Quality Initiative. Predicting inadequate bowel preparation for colonoscopy in participants receiving split-dose bowel preparation: development and validation of a prediction score. Gastrointest Endosc. 2015 Mar;81(3):665-72. doi: 10.1016/j.gie.2014.09.066. Epub 2015 Jan 17.

  • 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.

  • Gimeno-Garcia AZ, Benitez-Zafra F, Hernandez A, Hernandez-Negrin D, Nicolas-Perez D, Hernandez G, Baute-Dorta JL, Cedres Y, Del-Castillo R, Mon J, Jimenez A, Navarro-Davila MA, Rodriguez-Hernandez E, Alarcon O, Romero R, Felipe V, Segura N, Hernandez-Guerra M. Agreement between the perception of colon cleansing reported by patients and colon cleansing assessed by a validated colon cleansing scale. Gastroenterol Hepatol. 2024 Feb;47(2):130-139. doi: 10.1016/j.gastrohep.2023.02.009. Epub 2023 Mar 2. English, Spanish.

  • Gimeno-Garcia AZ, Hernandez G, Baute Dorta JL, Reygosa C, de la Barreda R, Hernandez-Bustabad A, Amaral C, Cedres Y, Del Castillo R, Nicolas-Perez D, Jimenez A, Alarcon-Fernandez O, Hernandez-Guerra M, Romero R, Alonso I, Gonzalez Y, Adrian Z, Hernandez D, Ramos L, Carrillo M, Felipe V, Hernandez A, Rodriguez-Jimenez C, Quintero E. An Enhanced High-Volume Preparation for Colonoscopy Is Not Better Than a Conventional Low-Volume One in Patients at Risk of Poor Bowel Cleansing: A Randomized Controlled Trial. Front Med (Lausanne). 2021 Mar 22;8:654847. doi: 10.3389/fmed.2021.654847. eCollection 2021.

MeSH Terms

Interventions

Polyethylene GlycolsAscorbic Acid

Intervention Hierarchy (Ancestors)

Ethylene GlycolsGlycolsAlcoholsOrganic ChemicalsPolymersMacromolecular SubstancesBiomedical and Dental MaterialsManufactured MaterialsTechnology, Industry, and AgricultureSugar AcidsAcids, AcyclicCarboxylic AcidsHydroxy AcidsCarbohydrates

Study Officials

  • Goretti Hernandez, MD

    Hospital Universitario de Canarias

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
INVESTIGATOR
Masking Details
Only the endoscopists in charge of rating the bowel cleansing during the colonoscopy will be masked
Purpose
OTHER
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 2, 2019

First Posted

February 5, 2019

Study Start

February 4, 2019

Primary Completion

October 21, 2019

Study Completion

October 30, 2019

Last Updated

March 13, 2020

Record last verified: 2020-03

Locations