Double-blinded, randomised controlled trial to evaluate the clinical efficacy of a single dose of oral capsule-administered faecal microbiota transplantation (FMT) for carbapenemase-producing Enterobacteriaceae (CPE) intestinal decolonisation compared with placebo. Primary outcome is the proportion of patients successfully decolonised of CPE intestinal carriage at 12 weeks after FMT treatment compared with placebo.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
108
Single dose of 30 oral capsules containing healthy donor stool from a stool bank
Single dose of 30 oral placebo capsules
Proportion of patients successfully decolonised of CPE intestinal carriage at 12 weeks.
Decolonisation is determined by the following test outcomes: i. Negative PCR result (CP genes undetected) for rectal swab sample subjected to direct PCR (Xpert Carba-R) ii. Negative PCR result (CP genes undetected) for rectal swab sample subjected to culture on ChromID CARBA SMART media followed by PCR for suspected CPE colonies (Xpert Carba-R) iii. Negative PCR result (CP genes undetected) for stool sample subjected to direct PCR (Xpert Carba-R) iv. Negative PCR result (CP genes undetected) for stool sample subjected to culture on ChromID CARBA SMART media followed by PCR for suspected CPE colonies (Xpert Carba-R) At least two of the four tests must be evaluable (clear positive or negative result obtained). Subject not meeting these criteria will be considered not-decolonised. If any one of the PCR results are positive, the subject is considered not-decolonised.
Time frame: 12 weeks
Proportion of patients successfully decolonised of CPE intestinal carriage at 1, 2, 6, 24, 36 and 48 weeks.
Decolonisation is determined by the following test outcomes: i. Negative PCR result (CP genes undetected) for stool sample subjected to direct PCR (Xpert Carba-R) ii. Negative PCR result (CP genes undetected) for stool sample subjected to culture on ChromID CARBA SMART media followed by PCR for suspected CPE colonies (Xpert Carba-R) At least one of the two tests have to be evaluable (clear positive or negative result obtained). Subject not meeting these criteria will be considered not-decolonised. If any one of the PCR results are positive, the subject is considered not-decolonised.
Time frame: 1, 2, 6, 24, 36 and 48 weeks
Progression to CPE infection
Proportion of patients who progressed to CPE infection within 48 weeks, defined by isolation of CPE in a clinical isolate, compatible with an infective syndrome, as assessed by the study investigators.
Time frame: Up to 48 weeks
Changes in stool microbiome
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Projected output from metagenomics analysis (i and ii) and culture-based assays (iii): i. Comparison of gut microbial composition at 1, 2, 6, 12, 24, 36, and 48 weeks after treatment with FMT or placebo with composition at pre-randomisation (including Shannon Diversity Index) ii. Comparison of relative abundance of CP producing and non-CP producing species at 1, 2, 6, 12, 24, 36, and 48 weeks after treatment with FMT versus placebo iii. CPE load in stool at 1, 2, 6, 12, 24, 36, and 48 weeks post-treatment
Time frame: 1, 2, 6, 12, 24, 36, and 48 weeks
Frequency and severity of adverse events
Comparison of the incidence and severity of all adverse events reported post-randomisation up to 48 weeks between the intervention and placebo groups.
Time frame: Up to 48 weeks