Measuring normal gas (flatulence) patterns with smart underwear and fiber intake
Official title: Using the Smart Underwear Device to Determine a Baseline of Flatus Activity Normalized to Fiber Intake
Run by University of Maryland, College Park · NCT07134543 · Data updated 2026-11-12
This project will try to measure how often adults pass gas over three days using smart underwear and see how fiber intake affects it.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 500 (estimated) |
| Sponsor | University of Maryland, College Park Academic / other |
| Locations | 2 sites (College Park, Maryland and 1 other locations) |
| Status | Recruiting |
| Started | December 1, 2025 |
| Main results expected | September 5, 2026 |
| Study ends | December 1, 2026 |
| Registry record updated | December 23, 2025 |
| Trial ID | NCT07134543 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults 18 or older who live in the United States, are not pregnant or lactating, and are willing to wear the Smart Underwear device and log meals are ideal candidates.
✕Probably not a fit
People seeking direct medical treatment for active gastrointestinal disease or expecting a therapeutic intervention should not expect personal clinical benefit from this observational project.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This observational project will enroll up to 500 adults across the United States who will wear a Smart Underwear device for at least 12 hours per day for three consecutive days while continuing their usual activities. Participants will complete an online eligibility survey, consent, and background questionnaire, and will log all meals with photos in a custom smartphone app. Researchers will collect continuous gas sensor data from the garment and pair those measurements with dietary intake to normalize flatus frequency to fiber consumption and probe microbiome activity. No experimental treatments are given; the effort is designed to define baseline patterns of gas events in a general adult population.
Why it matters
Potential benefit: If successful, this work could define normal ranges of flatus frequency and clarify how fiber influences gut gas production, helping researchers and clinicians interpret symptoms and design dietary guidance.
How similar studies have gone: Small laboratory studies and prototype sensor projects have measured gut gases before, but large-scale at-home monitoring with smart underwear is relatively novel and not yet widely validated.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * 18 years old or older * Lives in the US * Is not pregnant or lactating * Is willing to wear the Smart Underwear device as instructed in the study procedures Exclusion Criteria: * Younger than 18 years old * Lives outside the US * Is pregnant or lactating * Is not willing to wear the Smart Underwear device as instructed in the study procedures
Where it's running
-
University of Maryland Bioscience Research Building
College Park, Maryland, United States Recruiting -
Bioscience Research Building
College Park, Maryland, United States Not yet recruiting
Study contacts
- Study coordinator: Brantley Hall, PhD
- Email: brantley@umd.edu
- Phone: 5407978040
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.