Impact of Dietary Fiber Supplementation on Colonic Microbiome
Public ClinicalTrials.gov record NCT05643859. 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.
Official title
Changes in Colonic Microbiome With Fiber Supplementation
Study identification
- NCT ID
- NCT05643859
- Recruitment status
- Recruiting
- Study type
- Interventional
- Phase
- Not applicable
- Lead sponsor
- OHSU Knight Cancer Institute
- Other
- Enrollment
- 120 participants
Conditions and interventions
Interventions
- Colonoscopy Procedure
- Dietary Fiber Dietary Supplement
- Proctoscopy or anoscopy with Biopsy Procedure
- Questionnaire Administration Other
Procedure · Dietary Supplement · Other
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Mar 31, 2023
- Primary completion
- Dec 30, 2026
- Completion
- Dec 30, 2026
- Last update posted
- Jan 14, 2026
2023 – 2026
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| OHSU Knight Cancer Institute | Portland | Oregon | 97239 | Recruiting |
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 NCT05643859, 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 Jan 14, 2026 · Synced May 14, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT05643859 live on ClinicalTrials.gov.