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Multi-omics Dissection of Gut Microbiome Engraftment During FMT

NCT06992453 · Status: NOT_YET_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 90

Last updated 2026-04-28

No results posted yet for this study

Summary

The gut microbiota plays a key role in immunity and metabolism and contributes to diseases such as recurrent C. difficile infection (rCDI), ulcerative colitis (UC), and metabolic syndrome (MetS). Microbiota therapeutics, particularly fecal microbiota transplantation (FMT), show promise-achieving \~90% cure rates in rCDI-but demonstrate variable efficacy in chronic conditions. Microbiome engraftment appears critical for FMT success, yet consistent predictors remain lacking. A meta-analysis of 20 FMT studies by our group and the Segata Lab linked engraftment to clinical response across diseases, with taxon-specific patterns and ML-based predictability. While viral, fungal, host immune, genetic, and metabolic factors may affect engraftment, their roles are not well-defined. Key unresolved questions include the interplay among host factors, microbial strains, and metabolites, their influence on engraftment, and impact on clinical outcomes. This study aims to unravel microbiome engraftment dynamics and link them to therapeutic response.

Conditions

  • Recurrent C. Difficile (rCDI)
  • Ulcerative Colitis (UC)
  • Metabolic Syndrome (MetS)

Interventions

OTHER

Fecal microbiota transplantation (FMT)

Patients will receive a first donor FMT by colonoscopy, after a pre-conditioning with vancomycin and neomycin + bacitracin for 3 days, because data from our group show that pre-FMT antibiotics are associated with higher rates of microbial engraftment. Then they will receive two cycles, respectively after 3 and 7 days after colonoscopy - FMT, of frozen donor FMT capsules (15 capsules b.i.d. per 3 days). Patients will always receive feces from the same donor.

Sponsors & Collaborators

  • Catholic University of the Sacred Heart

    lead OTHER

Study Design

Allocation
NON_RANDOMIZED
Purpose
OTHER
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-04-23
Primary Completion
2029-01-19
Completion
2029-02-19

Countries

  • Italy

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06992453 on ClinicalTrials.gov