The Colonic Transit Time: a Modifiable Determinant of Intestinal Production and Uptake of Microbial Metabolites?

Chronic kidney disease is associated with the accumulation of various metabolites, i.e., uremic retention solutes. Evidence is mounting that the colonic microbiome contributes substantially to these uremic retention solutes. Indoxyl sulfate and p-cresyl sulfate are among the most extensively studied gut microbial metabolites, and are associated with cardiovascular disease, chronic kidney disease progression and overall mortality. Colonic transit time is an important determinant of intestinal generation and uptake of bacterial metabolites. However, it is unknown if accelerating the colonic transit time reduces the intestinal generation and uptake of indoxyl sulfate and p-cresyl sulfate. Prucalopride is a selective, high-affinity 5-HT4 receptor agonist with a stimulating effect on colonic motility and transit. It is currently used in treating chronic slow-transit constipation. An observational study will be initiated in non-chronic kidney disease patients with chronic slow-transit constipation necessitating treatment with prucalopride to observe its effect on serum concentrations and intestinal generation of indoxyl sulfate and p-cresyl sulfate.

Study Overview

• Status: Withdrawn
• Conditions: Constipation
• Intervention / Treatment: Drug: Prucalopride

• Study Type: Observational

Contacts and Locations

Study Locations

• Belgium
  • Vlaams-Brabant
    • Leuven, Vlaams-Brabant, Belgium, 3000
      • University Hospitals Leuven

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 16 years to 83 years (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

• Sampling Method: Non-Probability Sample

Study Population

Patients with known or newly diagnosed chronic slow-transit constipation necessitating treatment with prucalopride (Resolor®, Shire) according to current treatment guidelines

Description

Inclusion Criteria:

• Age ≥ 18 and ≤ 85 years

• Chronic slow-transit constipation as defined be 4 criteria:

  1. having two or fewer spontaneous complete bowel movements week for a minimum of 6 months
  2. having one or more of the following symptoms for at least one-quarter of the time: lumpy/hard stools, a sensation of incomplete evacuation, or straining during defecation.
  3. slow transit time as determined by Rx colon transit study ("pellet")
  4. without evidence of secondary constipation or primary defecation disorder
• Need of therapy with prucalopride (i.e., inefficacy of dietary changes and laxatives)
• Follow-up visit possible after 4 weeks of treatment
• Written informed consent

Exclusion Criteria:

• History or new diagnosis of organic intestinal disease (e.g., inflammatory bowel disease, malignancy)
• Secondary constipation (drug-induced, endocrine, metabolic or neurological disorders, surgery, known or suspected organic disorders of the large intestine, or megacolon) or primary defecation disorder
• Use of laxatives two days before start of treatment and during treatment period. If there is no spontaneous bowel movement during 3 consecutive days, rescue treatment with bisacodyl and/or enema is allowed if necessary
• Presence of significant co-morbidity (uncontrolled heart, liver and lung disease)
• Pregnancy
• Chronic kidney disease, i.e., estimated glomerular filtration rate (MDRD) < 60 ml/min/m² or need of dialysis therapy

Study Plan

How is the study designed?

Design Details

• Observational Models: Case-Only
• Time Perspectives: Prospective

Number of groups / cohorts

1

Cohorts and Interventions

Group / Cohort	Intervention / Treatment
Prucalopride; Slow-transit constipation with treatment with prucalopride	Drug: Prucalopride; Treatment with prucalopride for slow-transit constipation

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
change in serum concentration of bacterial metabolites	change in serum concentration of bacterial metabolites before and after (4 weeks) treatment of prucalopride	4 weeks

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
change in 24h urinary excretion rate of bacterial metabolites	change in 24h urinary excretion rate of bacterial metabolites before and after (4 weeks) treatment of prucalopride	4 weeks

Collaborators and Investigators

• Sponsor: Universitaire Ziekenhuizen KU Leuven
• Investigators: Principal Investigator: Jan Tack, MD, PhD, Universitaire Ziekenhuizen KU Leuven

Study record dates

Study Major Dates

• Study Start: May 1, 2013
• Primary Completion (Actual): December 1, 2018
• Study Completion (Actual): December 1, 2018

Study Registration Dates

• First Submitted: May 31, 2013
• First Submitted That Met QC Criteria: May 31, 2013
• First Posted (Estimate): June 5, 2013

Study Record Updates

• Last Update Posted (Actual): April 24, 2020
• Last Update Submitted That Met QC Criteria: April 23, 2020
• Last Verified: April 1, 2020

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Signs and Symptoms, Digestive; Constipation; Physiological Effects of Drugs; Neurotransmitter Agents; Molecular Mechanisms of Pharmacological Action; Gastrointestinal Agents; Serotonin Agents; Serotonin Receptor Agonists; Laxatives; Serotonin 5-HT4 Receptor Agonists; Prucalopride
• Other Study ID Numbers: S55296