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A Study on Gastrointestinal Transit Time at the Population Level

Study acronym: GITTPop
StatusRecruiting
PhaseNot specified
SponsorKU Leuven
Started
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Record History

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  1. Recruitment opened Show 4 more changesShow less
    • Start date changed from estimate of Dec 2025 to Dec 1, 2025
    • Eligibility criteria expanded, about 10 words
    • Secondary endpoints: details revised at 9 of 17 entries
    • Site details revised
  2. Study First Submitted
  • Stopped: an ongoing trial was terminated, suspended or withdrawn.
  • Notable: the trial’s plan changed such as a big move in its timeline or size, a new primary endpoint, sponsor or phase, or recruiting opened or resumed.
  • Minor: routine progress and housekeeping, such as sites added or enrollment closed.
KU Leuven
69 trials monitored
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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.
Trial Details
NCT Number NCT07309250
Lead Sponsor KU Leuven
Conditions
(from sponsor)		 Gastrointestinal Transit Time
Enrollment 932 participants
Start Date
Primary Completion (estimated)
Study Completion (estimated)
Updated on ClinicalTrials.gov