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Dietary Optimization of Microbiome Recovery Following Fecal Microbiota Transplantation

Dietary Optimization of Microbiome Recovery Following Fecal Microbiota Transplantation

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05826418
Enrollment
12
Registered
2023-04-24
Start date
2023-05-01
Completion date
2024-03-12
Last updated
2025-08-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Fecal Microbiota Transplant, Recurrent Clostridium Difficile Infection

Brief summary

Recurrent Clostridioides difficle infection (rCDI) is a very significant problem in its own right and current fecal microbiota transplant (FMT) -based therapeutics will benefit from their optimization for this indication. It is likely that appropriate nutritional support coupled with microbiota-based drugs will yield superior clinical outcomes. However, both diet and gut microbiome are very complex. This project, which is based on a wealth of FMT experience, both clinical and investigational, over the past decade along with the novel techniques developed to identify dietary patterns and food groups that explain the most variation in gut microbiome, offers an ideal platform for performing systematic research in nutritional support that promotes gut microbiota health. The purpose is to Generate preliminary data with regards to tolerability of the Microbiota enhancing and nourishing diet (MEND) and its effects on the fecal microbiota in rCDI patients following FMT with the goal of developing larger clinical trials aimed to optimize post-FMT dietary management.

Interventions

DIETARY_SUPPLEMENTMEND diet

Participants will be asked to adhere to their randomized MEND diet for 4 weeks and FMT. The FMT being offered is part of standard clinical care, as recommended by current practice guidelines. They will complete bi-weekly IBS symptom score questionnaires and stool samples collection from consent to week 4. Following the 4-week intervention period patients will not be asked to adhere to a study diet.

DIETARY_SUPPLEMENTmNICE diet

Participants will be asked to adhere to their randomized mNICEdiet for 4 weeks and FMT. The FMT being offered is part of standard clinical care, as recommended by current practice guidelines. They will complete bi-weekly IBS symptom score questionnaires and stool samples collection from consent to week 4. Following the 4-week intervention period patients will not be asked to adhere to a study diet.

Sponsors

University of Minnesota
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Informed consent * Clinical plans to undergo FMT therapy for treatment of rCDI (≥ 2 CDI recurrences following the initial episode within 1 year without contraindications to the treatment) * Ability to comply with study requirements * Age at least 18 years old

Exclusion criteria

* Underlying IBD * History of stomach surgery or bowel resection * Anticipated antibiotic exposure during the study period * Advanced liver disease * Ongoing alcohol or drug abuse * Pregnancy * Any reason felt by the investigator to complicate the feasibility of participation

Design outcomes

Primary

MeasureTime frameDescription
Participant compliance with study proceduresintervention to 4 weeks24-hr dietary recalls will be used to assure adherence with the study diet
Participant acceptance of the diet4 weeksDiet acceptability questionnaire: Includes 7 questions each with minimum and maximum values (1 and 7) and higher scores mean better outcomes.

Secondary

MeasureTime frameDescription
Bacterial diversity1 weekShannon diversity index
Similarity to donor bacterial composition1 weekUsing SourceTracker: which uses modeling based on 16S rDNA sequencing, is the measurement tool used to assess the measure
Bacterial composition1 weekRelative abundance of specific bacteria previously documented to be predictive of successful FMT outcomes with respect to CDI recurrence

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026