# Impact of Dietary Fiber Supplementation on Colonic Microbiome

> **NCT05643859** · NA · RECRUITING · sponsor: **OHSU Knight Cancer Institute** · enrollment: 120 (estimated)

## Conditions studied

- Benign Colorectal Neoplasm
- Non-Neoplastic Anal Disorder

## Interventions

- **DIETARY_SUPPLEMENT:** Dietary Fiber
- **PROCEDURE:** Proctoscopy or anoscopy with Biopsy
- **PROCEDURE:** Colonoscopy
- **OTHER:** Questionnaire Administration

## Key facts

- **NCT ID:** NCT05643859
- **Lead sponsor:** OHSU Knight Cancer Institute
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** RECRUITING
- **Start date:** 2023-04-01
- **Primary completion:** 2026-12-31
- **Final completion:** 2026-12-31
- **Target enrollment:** 120 (ESTIMATED)
- **Last updated:** 2026-01-15


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05643859

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05643859, "Impact of Dietary Fiber Supplementation on Colonic Microbiome". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT05643859. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*