Stanford University Neurofiber Study
Public ClinicalTrials.gov record NCT07914387. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Parkinson's disease often causes constipation and changes in gut bacteria, but it is not known how quickly a daily fiber supplement changes gut physiology in people with Parkinson's, or how long any change lasts after stopping. This study will test how a daily fiber bar affects bowel function and gut inflammation in people with Parkinson's disease and in household members who live with them. Participants will eat one fiber bar (11 grams of fiber) each day for 3 months, then stop and be followed for one more month, for about 4 months in total. At three points (before starting, after 3 months of fiber, and one month after stopping), participants will collect a stool sample at home and mail it to Stanford in a provided kit, so no clinic visits are needed. Every week, participants will also fill out a short questionnaire about how often they have bowel movements, their bowel regimen, and they will complete a questionnaire about how bowel symptoms affect their daily life. In the lab, we will measure proteins in the stool that are signs of gut inflammation. We want to learn how fast these proteins change when fiber is added, whether changes last after fiber is stopped, and whether people with Parkinson's respond differently than their household partners. We expect that fiber will change gut inflammation and bowel function during the fiber period, and that these changes will differ between people with Parkinson's and their partners after the fiber bars are stopped. Results may help guide future research on diet and gut function in Parkinson's disease.
Study identification
- NCT ID
- NCT07914387
- Recruitment status
- Not yet recruiting
- Study type
- Interventional
- Phase
- Phase 1
- Enrollment
- 50 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Dec 1, 2026 (Estimated)
- Primary completion
- Jul 1, 2027 (Estimated)
- Completion
- Dec 1, 2027 (Estimated)
- Last update posted
- Nov 3, 2026
2026 – 2027
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Stanford University Neurosciences | Stanford | California | 94305 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT07914387, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Nov 3, 2026 · Synced Nov 3, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT07914387 live on ClinicalTrials.gov.