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A Study on Gastrointestinal Transit Time at the Population Level

NCT07309250 · Status: NOT_YET_RECRUITING · Type: OBSERVATIONAL · Enrollment: 932

Last updated 2025-12-30

No results posted yet for this study

Summary

The goal of this study is to investigate the baseline of gastrointestinal transit time (GITT) and explore its relationship with other health indicators in 932 healthy adult volunteers.

The main questions it aims to answer are:

What are the population-level baseline values for GITT using the blue dye method? How is GITT associated with key physiological parameters including blood metabolic markers, life style, and stool characteristics?

Participants will:

Consume a standardized blue dye muffin after overnight fasting at the research center; Offer a finger prock blood samples for metabolic profiling; Collect stool samples for moisture measurement; Complete detailed questionnaires on diet, lifestyle, and bowel habits; Record the time of first blue stool appearance to determine GITT.

Conditions

  • Gastrointestinal Transit Time

Interventions

OTHER

Diet

Participants will consume a regular muffin containing blue dye

Sponsors & Collaborators

  • KU Leuven

    lead OTHER

Eligibility

Min Age
18 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2025-12-31
Primary Completion
2026-12-30
Completion
2026-12-30

Countries

  • Belgium

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07309250 on ClinicalTrials.gov