NCT07375329

Brief Summary

This study is designed to examine if mobile phone-based breath hydrogen and methane monitors can be used as a biomarker of dietary fiber intake.

Trial Health

75
On Track

Trial Health Score

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

Enrollment
20

participants targeted

Target at below P25 for not_applicable

Timeline
8mo left

Started Jan 2026

Geographic Reach
1 country

1 active site

Status
enrolling by invitation

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

Study Progress30%
Jan 2026Dec 2026

First Submitted

Initial submission to the registry

January 21, 2026

Completed
7 days until next milestone

Study Start

First participant enrolled

January 28, 2026

Completed
1 day until next milestone

First Posted

Study publicly available on registry

January 29, 2026

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2026

Last Updated

March 16, 2026

Status Verified

March 1, 2026

Enrollment Period

11 months

First QC Date

January 21, 2026

Last Update Submit

March 12, 2026

Conditions

Healthy Eating

Outcome Measures

Primary Outcomes (2)

  • Breath methane

    Measured daily for three months, represented in parts per million (ppm)

    Measured daily for three months

  • Breath hydrogen

    Measured daily for three months, represented in parts per million (ppm)

    Daily for three months

Study Arms (1)

Breath Tester

OTHER

All participants will receive a breath tester

Other: Breath Tester

Interventions

Breath TesterOTHER

Participants enrolled in a fiber-focused study will be offered a Food Marble to see if the data provided correlates with self-reported fiber intake

Breath Tester

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Must be enrolled in parent trial (NCT07219706)

You may not qualify if:

  • Not enrolled in parent trial (NCT07219706)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Oklahoma Health Sciences

Oklahoma City, Oklahoma, 73104, United States

Location

Study Officials

  • Ashlea Braun, PhD

    University of Oklahoma

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
PREVENTION
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 21, 2026

First Posted

January 29, 2026

Study Start

January 28, 2026

Primary Completion (Estimated)

December 31, 2026

Study Completion (Estimated)

December 31, 2026

Last Updated

March 16, 2026

Record last verified: 2026-03

Data Sharing

IPD Sharing
Will not share

Locations

US(1)