NCT07127237

Brief Summary

The objective of this randomized clinical trial is to compare prucalopride versus bisacodyl as a stimulant agent for bowel cleansing preparation prior to colonoscopy in patients undergoing the procedure at the Endoscopy Unit of the Hospital de Clínicas. The main research questions this study aims to answer are: Is prucalopride superior or equivalent to bisacodyl as a stimulant agent for bowel cleansing preparation before colonoscopy? Is the tolerability of prucalopride better, equivalent, or worse compared to bisacodyl? The investigators will compare the standard bowel cleansing preparation using polyethylene glycol (PEG) in combination with either bisacodyl or prucalopride as the stimulant agent. Participants will be randomized into two groups, both receiving the same base preparation with different stimulant agents.

Trial Health

35
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
124

participants targeted

Target at P75+ for early_phase_1

Timeline
Completed

Started Sep 2025

Shorter than P25 for early_phase_1

Status
not yet recruiting

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

June 23, 2025

Completed
2 months until next milestone

First Posted

Study publicly available on registry

August 17, 2025

Completed
15 days until next milestone

Study Start

First participant enrolled

September 1, 2025

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2026

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 1, 2026

Completed
Last Updated

August 17, 2025

Status Verified

June 1, 2025

Enrollment Period

5 months

First QC Date

June 23, 2025

Last Update Submit

August 11, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Boston scale

    Scale used to evaluate the quality of bowel preparation during video colonoscopy. Score 0-9; adequate preparation (Boston ≥ 2 points in each colonic segment), inadequate preparation (Boston \< 2 points in any of the segments).

    Periprocedural

Secondary Outcomes (3)

  • Tolerability of bowel preparation. Presence or absence of the following symptoms during bowel preparation: nausea, vomiting, abdominal pain or distension, headache, dizziness, fatigue, palpitations, and rectal bleeding.

    Periprocedural

  • Overall adenoma detection rate

    Until the completion of the studies. Average 1 year

  • Overall cecal intubation rate

    Until the completion of the studies. Average 1 year.

Study Arms (2)

Bisacodyl

EXPERIMENTAL

On the day prior to the procedure, the group receiving bisacodyl will take 4 tablets (5 mg each) at 4:00 PM. Subsequently, at 6:00 PM, they will dissolve 3 sachets of PEG in 3 liters of water (1 sachet per liter) and ingest half of the preparation, that is, 1.5 liters over a period of 2 hours. At 10:00 PM, they will ingest the remaining 1.5 liters over another 2-hour period.

Drug: Bisacodyl 5 MG

Prucaloprida

EXPERIMENTAL

On the day prior to the procedure, the group receiving prucalopride will take one 2 mg tablet at 4:00 PM. Subsequently, at 6:00 PM, they will dissolve 3 sachets of PEG in 3 liters of water (1 sachet per liter) and ingest half of the preparation-that is, 1.5 liters over a period of 2 hours. At 10:00 PM, they will ingest the remaining 1.5 liters over another 2-hour period.

Drug: Prucalopride 2mg

Interventions

On the day prior to the procedure, the group receiving bisacodyl will take 4 tablets (5 mg each) at 4:00 PM. Subsequently, at 6:00 PM, they will dissolve 3 sachets of PEG in 3 liters of water (1 sachet per liter) and ingest half of the preparation, that is, 1.5 liters over a period of 2 hours. At 10:00 PM, they will ingest the remaining 1.5 liters over another 2-hour period.

Bisacodyl

On the day prior to the procedure, the group receiving prucaloprida will take 1 tablet (2 mg) at 4:00 PM. Subsequently, at 6:00 PM, they will dissolve 3 sachets of PEG in 3 liters of water (1 sachet per liter) and ingest half of the preparation, that is, 1.5 liters over a period of 2 hours. At 10:00 PM, they will ingest the remaining 1.5 liters over another 2-hour period.

Prucaloprida

Eligibility Criteria

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

You may qualify if:

  • All patients over 18 years of age.
  • Without prior colonic surgical interventions.
  • Who attend the Digestive Endoscopy service to undergo a colonoscopy.

You may not qualify if:

  • Patients who voluntarily choose not to participate in the study.
  • Pregnant women.
  • Patients with rectocolonic resections and/or ileostomies.
  • Inflammatory bowel disease.
  • Inadequate bowel preparation in a previous colonoscopy.
  • Suspected intestinal obstruction or perforation.
  • Intestinal intussusception.
  • Melena.
  • Oral iron intake within the last 10 days.
  • Emergency colonoscopies.
  • Hypersensitivity to any component of the bowel preparation solutions.
  • Chronic kidney disease on dialysis.
  • Uncorrected severe electrolyte imbalances.
  • Major psychiatric disorders.
  • Low intellectual quotient.
  • +4 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Interventions

Bisacodylprucalopride

Intervention Hierarchy (Ancestors)

CresolsPhenolsBenzene DerivativesHydrocarbons, AromaticHydrocarbons, CyclicHydrocarbonsOrganic Chemicals

Central Study Contacts

Study Design

Study Type
interventional
Phase
early phase 1
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal investigator

Study Record Dates

First Submitted

June 23, 2025

First Posted

August 17, 2025

Study Start

September 1, 2025

Primary Completion

February 1, 2026

Study Completion

February 1, 2026

Last Updated

August 17, 2025

Record last verified: 2025-06

Data Sharing

IPD Sharing
Will share

All collected data