Stool Transplant to Control Treatment-related Diarrhea

Study Overview
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Brief Summary
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This study will test the safety, effectiveness, and feasibility of a treatment called fecal microbiota transplantation (FMT) to reduce the symptoms of ICI-related diarrhea. FMT uses a liquid preparation of stool collected from a healthy donor with normal (healthy) bacteria; this liquid is infused into the small or large intestine of a recipient during a colonoscopy procedure. The study researchers think that the healthy bacteria in the transplanted stool will grow and replace the unhealthy bacteria and return the intestines and colon of the recipient to a healthy state.

Official Title
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Fecal Microbiota Transplantation (FMT) for Immune Checkpoint Inhibitor (ICI)-Related Diarrhea: A Pilot Study

Conditions
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Fecal Microbiota Transplantation (FMT)

Intervention / Treatment
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* Biological: Fecal Microbiota Transplantation (FMT)


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: ≥ 18 years old Patient has been treated with immune checkpoint inhibitors (ICI), including anti-CTLA-4, anti-PD-1 and anti-PDL-1 therapy for any malignant indication Patient has developed diarrhea ≥ Grade 2 attributed to ICI Patient has diarrhea ≥ Grade 2 attributed to ICI, that persists despite treatment with corticosteroids for at least 72 hours and/or at least one dose of a biologic medication, such as infliximab or vedolizumab, with symptoms that persist or recur at least 72 hours post-infusion ° If no to the above, patient has a contraindictation to immunosuppressive treatment Exclusion Criteria: Active GI infection, including untreated viral, bacterial or fungal or alternative identified cause(s) of diarrhea. Antibiotic exposure within 48 hours prior to FMT Expected prolonged compromised immunity indicated by at least one of the below: Known HIV infection with CD4 count <240 ANC <1000/mm3 (use of growth factors to raise ANC is acceptable) Seronegative for EBV or CMV (i.e. EBV IgG negative or CMV IgG negative) Contraindications to anesthesia for procedure indicated by at least one of the below: Serious cardiopulmonary comorbidities Inability to tolerate anesthesia Pregnancy Patient is pregnant Women of childbearing potential should not have plans to became pregnant or breastfeed an infant and must agree to use a highly effective method of birth control until 2 months after treatment with FMT (e.g. barrier method, oral or parenteral contraceptives, a vasectomized partner, or abstinence from sexual intercourse) Severe food allergies

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Intervention Model: Single Group Assignment
Interventional Model Description: This is an open-label, non-randomized pilot trial.
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Fecal Microbiota Transplantation (FMT)<br>Study subjects will undergo standard bowel preparation and diagnostic colonoscopy with routine biopsies for pathologic assessment. FMT will be performed at the proximal extent of the colon reached, according to the same protocol used in prior randomized studies. FMT will use healthy donor stool provided by OpenBiome, a nonprofit 501(c)(3) organization that provides clinicians and hospitals with screened, filtered and frozen stool to be used for FMT. Routine clinical and research biopsies will be collected during the FMT colonoscopy procedure. | Biological: Fecal Microbiota Transplantation (FMT)<br>* Undergo FMT via colonoscopy.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Incidence of fecal microbiota transplantation (FMT)-related adverse events | will be grading according to CTCAE 5.0.1 | for 7 days after each FMT | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Immune Checkpoint Inhibitor (ICI)-Related Diarrhea, 20-242