Pilot Trial of Xylitol for C. Difficile De-Colonization in Patients With Inflammatory Bowel Disease
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Xylitol.
- Who it may be relevant to
- Registry conditions: Inflammatory Bowel Disease (IBD), Clostridioides Difficile Infection. Basic parameters: from 18 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- United States
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Overview
This 3+3 dose escalation pilot trial will assess the safety and efficacy of xylitol as an oral therapeutic for decolonization of C. difficile in the Inflammatory Bowel Disease (IBD) patient population.
Detailed description
Participants with confirmed IBD diagnosis who are scheduled for an outpatient colonoscopy for any reason at Brigham and Women's Hospital will be eligible for enrollment. Participants will be screened for C. difficile colonization via colonic wash sampling during colonoscopy. Participants may only have inactive or mild IBD at the time of the colonoscopy to be eligible.
Eligible participants will be initially enrolled in the observational cohort until there are 39 subjects enrolled. Participants in the observational cohort will be assessed at Week 1, 4 and 8, following confirmation of colonization. Participants will only be assessed for stool sample testing, IBD scoring and occurrence of CDI.
The subsequent participants who meet eligibility criteria will be enrolled into one of five consecutively increasing dosing groups of xylitol. The dose A treatment arm will receive a daily dose of 1 gram of xylitol for 7 days. The dose B treatment arm will receive a daily dose of 2 grams of xylitol for 7 days. The dose C treatment group will receive a daily dose of 5 grams of xylitol for 7 days. The dose D treatment group will receive a daily dose of 7 grams of xylitol for 7 days. The dose E treatment group will receive a daily dose of 9 grams of xylitol for 7 days. Participants will end dosing at day 7 but monitoring will continue through to week 8.
Participants in the will be assessed through week 8 for the primary outcome, determining the maximum tolerated dosage of xylitol. C. difficile decolonization will be assessed through week 8. Participants will also receive weekly phone call for assessment of symptoms and tolerability through week 8. In addition, secondary efficacy outcomes including IBD disease activity and development of CDI will be evaluated at week 8, and week 26. Participants will also be followed through week 26 for long-term safety, efficacy, and clinical outcomes. Disease activity and symptoms will be recorded from informed consent through the week 26 trial visit.
The primary outcome, determining the maximum tolerated dose of xylitol at week 8 will be confirmed via adverse event reporting. Additional C. difficile testing will be done at week 26.
The study will prospectively enroll between 15 and 30 adult participants at a single center. Participants that experience intolerable adverse events will be withdrawn from the study and will be considered treatment failures.
Interventions
- Drug Xylitol
Xylitol is a sugar alcohol and considered a GRAS substance by the FDA. Patients will be consecutively enrolled into one of five dosing including 1g, 2g, 5g, 7g and 9g.
Primary outcome measures
- Safety and Efficacy of Xylitol [Time frame: 8 weeks]
- C. Diff Decolonization [Time frame: 8 weeks]
Secondary outcome measures (3)
- Biomass of C. Difficile [Time frame: 8 weeks]
- Effect of C. difficile decolonization on Inflammatory Bowel Disease (IBD) clinical outcomes [Time frame: 26 weeks]
- C. Difficile infection surveillance [Time frame: 26 weeks]
Eligibility criteria
Inclusion criteria
- Signed informed consent.
- Male or female ≥ 18 years of age
- IBD diagnosis (CD, UC or indeterminant Colitis will be permitted)
- Inactive or mild IBD (HBI score ≤ 4; Partial Mayo score ≤ 4)
- Presenting for outpatient colonoscopy or clinic appointment
Exclusion criteria
- Unable to provide consent.
- Patients with previous colectomy, ostomy, J-pouch, or previous colon surgery (excluding appendectomy)
- Unable to complete study procedures.
- Chronic use of antibiotics.
- Inability or unwillingness to swallow capsules.
- Allergy to xylitol.
- Currently pregnant or breastfeeding
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Allocation
- Non-randomized
- Model
- Parallel assignment
- Masking
- Open label
- Primary purpose
- Treatment
Study locations
United States · 1 center
- Brigham and Women's Hospital — Boston
Identifiers
NCT: NCT06799039 · 2025P000210