The objective of this trial is to investigate whether a treatment strategy offering bezlotoxumab before FMT in patients suffering from multiple recurrent CDI results in equal efficacy compared with a treatment strategy with initial FMT. Strategy A includes bezlotoxumab as ancillary treatment as first option, and FMT in case of failure. Option B includes FMT as ancillary treatment as first option, and antibiotic treatment with fidaxomicin in case of failure. A secondary objective is to provide a point estimate of recurrence after bezlotoxumab for the treatment of multiple recurrent CDI.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
single intravenous infusion of bezlotoxumab 10 mg/kg
single infusion of 198 cc fecal suspension (derived from 60g donor feces) via duodenal tube or coloscopy
14 days vancomycin oral 125mg QID (250mg QID when 125mg not available)
Amsterdam University Medical Centers, AMC
Amsterdam, Netherlands
Leiden University Medical Center
Leiden, Netherlands
Erasmus Medical Center
Rotterdam, Netherlands
Haaglanden Medical Center
The Hague, Netherlands
Global cure of the treatment strategy
Defined as cure without relapse of CDI within 12 weeks after completion of the treatment strategy in the study arm, i.e. after completion of secondary treatment in case of failure on initial treatment.
Time frame: 12 weeks (after rescue therapy if applicable)
Initial cure after treatment with bezlotoxumab or FMT
Defined as cure after completion of the primary CDI treatment in the study arm. Initial cure is assessed at day 2 after end of treatment (EOT).
Time frame: 2 days after end of treatment
Recurrence after initial treatment with bezlotoxumab or FMT
Defined as CDI relapse within 12 weeks after initial cure
Time frame: 12 weeks
Sustained cure after initial treatment with bezlotoxumab or FMT
Sustained cure is defined as cure without relapse of CDI within 12 weeks after completion of the initial treatment.
Time frame: 12 weeks
Adverse events
Throughout the entire study all adverse events will be noted. After the final study procedure of the last patient, all adverse events will be categorized: 1. Most likely related to ancillary CDI treatment (bezlotoxumab or FMT) 2. May be related to ancillary CDI treatment 3. Not related to ancillary CDI treatment
Time frame: 12 weeks
Post-treatment IBS-like symptoms
Development of post-treatment irritable bowel syndrome like symptoms associated with bezlotoxumab treatment or FMT treatment
Time frame: 12 weeks
Duration of hospitalization
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Time frame: 12 weeks
Rate of antibiotic use
Time frame: 12 weeks
Eradication of toxigenic C. difficile
As assessed by PCR
Time frame: 3 and 12 weeks
Fecal microbiota (16S) alfa- and beta-diversity
As assessed by 16S rRNA amplicon sequencing
Time frame: Pre-treatment and 3 and 12 weeks
Cost-effectiveness
Costs per cured patient (global and sustained cure) and costs per QALY gained, using the EQ-5D-5L health questionaire that assesses five domains by 5 point scale, e.g. no/slight/moderate/severe/extreme impairment and a visual analogue 0-100 scale of health rating, higher is better)
Time frame: 12 weeks