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Updated: May 21, 2025
Fecal Microbiota Transplantation via Colonoscopy for Recurrent C. difficile Infection
Published on: December 8, 2014
Risk Factors for Antibiotic Exposure Post-Fecal Microbiota Transplantation for Recurrent Clostridioides difficile
William Hirsch1, Monika Fischer2, Alexander Khoruts3,4,5
1Department of Medicine, University of Minnesota, Minneapolis, Minnesota, USA.
Background:
Recurrent Clostridioides difficile infection (CDI) is primarily driven by antibiotic-induced disruption of the indigenous intestinal microbiota. Restoration of microbiota through fecal microbiota transplantation (FMT) is effective in preventing subsequent CDI, although this effect is attenuated with additional antibiotic exposure. The aim of this study was to identify the risk factors for recurrent antibiotic administration after FMT.
Methods:
This is a prospective cohort of patients who were administered FMT for recurrent CDI from 1 July 2019 through 23 November 2023 across 6 institutions in the United States. Providers collected de-identified data at the time of FMT administration and in the months post-FMT administration.
Results:
The analysis included 448 patients. Risk factors for non-CDI antibiotic administration within 2 months of FMT included immunocompromised status (odds ratio [OR], 2.2 [95% confidence interval {CI}, 1.1-4.4]; P = .02), >3 non-CDI antibiotic courses pre-FMT (OR, 3.1 [95% CI, 1.4-6.8]; P = .006), and prior hospitalization for CDI (OR, 2.0 [95% CI, 1.1-3.8]; P = .02). The most common indications for non-CDI antibiotic administration post-FMT were urinary tract infections, respiratory infections, and procedure prophylaxis.
Conclusions:
Non-CDI antibiotic exposure significantly increases the risk of CDI recurrence post-FMT. Risk factors for non-CDI antibiotic administration within 2 months of FMT include immunocompromised status, multiple prior non-CDI antibiotics, and prior hospitalization for CDI. These individuals may benefit from additional or modified recurrent CDI prevention strategies.
Insights
Antibiotic use after fecal microbiota transplantation (FMT) increases recurrent Clostridioides difficile infection (CDI) risk. Immunocompromised status, prior antibiotics, and CDI hospitalization predict post-FMT antibiotic use, requiring targeted prevention strategies.
Area of Science:
- Microbiology
- Gastroenterology
- Infectious Diseases
Background:
- Recurrent Clostridioides difficile infection (CDI) stems from antibiotic-induced gut microbiota disruption.
- Fecal microbiota transplantation (FMT) effectively restores microbiota to prevent CDI, but antibiotic exposure can reduce its efficacy.
- Identifying risk factors for antibiotic use post-FMT is crucial for managing recurrent CDI.
Purpose of the Study:
- To identify risk factors associated with non-CDI antibiotic administration following FMT in patients with recurrent CDI.
Main Methods:
- A prospective cohort study involving 448 patients receiving FMT for recurrent CDI across 6 US institutions.
- Data collected included patient status at FMT administration and in the months following.
- Statistical analysis identified risk factors for non-CDI antibiotic use within 2 months post-FMT.
Main Results:
- Immunocompromised status (OR, 2.2), more than three prior non-CDI antibiotic courses (OR, 3.1), and prior CDI hospitalization (OR, 2.0) were significant risk factors for non-CDI antibiotic administration post-FMT.
- Urinary tract infections, respiratory infections, and procedure prophylaxis were the most common reasons for post-FMT antibiotic use.
- These factors were statistically significant (P < .05).
Conclusions:
- Non-CDI antibiotic exposure post-FMT significantly elevates the risk of CDI recurrence.
- Key risk factors for post-FMT antibiotic use include immunocompromised status, multiple prior antibiotic courses, and prior CDI hospitalization.
- Patients with these risk factors may require enhanced or modified strategies for recurrent CDI prevention.
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