Impact of Dietary Fiber Supplementation on Colonic Microbiome (NCT05643859)
🩺 Plain-English Summary (8th-Grade Level)
This clinical trial tests whether daily fiber supplementation will change the mucosal microbiome of the colon. The microbiome are microorganisms that live in the human gut. They serve a vital role in maintaining health. Certain microbial strains are associated with the growth of colon polyps, which eventually could go on to form colon cancer. Giving dietary fiber supplements may help prevent precancerous polyps from ever developing.
Who can join: To join this study, participants generally need to meet the listed inclusion criteria (3 items) and avoid the listed exclusions (5 items).
Location: OHSU Knight Cancer Institute — Portland, Oregon
📋 "Do I Qualify?" — 1-Minute Self Screener
Instant ChecklistCheck every box below. If you can check all of them, you may meet the study's basic screening requirements (final eligibility is confirmed by the site team).
Usually NOT eligible if any of the following apply:
- Exclusion Criteria:
- Patients with an active malignancy, Crohn's disease, ulcerative colitis, and immunosuppressed patients
- Patients with hereditary colon cancer syndrome including Lynch syndrome or Familial Adenomatous Polyposis (FAP)
- Patients with a prior history of total or partial colon resection
- Colorectal pathology, such cancer or proctitis, after initial study scope
🔍 Extracted verbatim from the official NIH eligibility criteria. Always confirm with the study coordinator.
📍 All Participating Trial Locations (1 Sites)
- OHSU Knight Cancer Institute — Portland, Oregon
💰 Cost, Insurance & Patient Rights
- 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
- Routine Patient Care: Under federal law (ACA § 2709) and many state statutes, routine care costs are covered during participation.
- Voluntary Participation: You may withdraw at any time without affecting your standard medical care.