Multi-center, randomized, placebo controlled, partially blinded trial comparing the safety and efficacy of fecal microbiota transplantation versus placebo both delivered by rectal enema in subjects 18 years of age or older with recurrent Clostridium difficile Associated Disease (CDAD). 162 male or female subjects will be enrolled in the study. Enrolled subjects will be randomized at each site to receive either FMT by enema or placebo by enema in a 2:1 ratio. Study duration is 3 years, subject participation duration is approximately 1 year. The primary study objectives are: 1) to evaluate the safety of FMT(s) delivered by enema vs. placebo delivered by enema and 2) to determine efficacy of FMT delivered by enema vs. placebo delivered by enema.
This is a multi-center, randomized, placebo controlled, partially blinded trial comparing the safety and efficacy of fecal microbiota transplantation versus placebo both delivered by rectal enema in subjects 18 years of age or older with recurrent Clostridium difficile Associated Disease (CDAD). 162 (108 in the FMT group, 54 in the placebo group) male or female subjects will be enrolled in the study. Subjects must have had treatment for most recent CDAD with at least 10 days of either metronidazole po/IV (500 mg tid), oral vancomycin (at least 125 mg qid), or oral fidaxomicin (200 mg bid) and have no diarrheal symptoms (\<3 unformed stools per 24 hour period) off antibiotics during the washout period. Enrolled subjects will be randomized at each site to receive either FMT by enema or placebo by enema in a 2:1 ratio. The study is described as partially blinded because by design subjects are to be blinded only to a certain point. Subjects will be followed for clinical response (efficacy) and safety. The study duration is 3 years, subject participation duration is approximately 1 year. The primary study objectives are: 1) to evaluate the safety of FMT(s) delivered by enema vs. placebo delivered by enema and 2) to determine efficacy of FMT delivered by enema vs. placebo delivered by enema. Secondary objectives: 1) to evaluate the sustained clinical response rate of FMTs delivered by enema vs. placebo delivered by enema, 2) to evaluate the rate of recurrent CDAD, and 3) to evaluate the time to recurrent CDAD.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
10
100 grams of thawed processed stool diluted into 250 ml of saline and delivered by retention enema
250 ml of saline delivered by retention enema
Emory Vaccine Center - The Hope Clinic
Decatur, Georgia, United States
Duke Human Vaccine Institute - Duke Vaccine and Trials Unit
Durham, North Carolina, United States
Vanderbilt University Medical Center - Infectious Diseases
Nashville, Tennessee, United States
Number of Participants With a New Onset of Related Chronic Medical Condition After Completing Treatment for Recurrent Clostridium Difficile-Associated Diarrhea (CDAD)
New onset of related chronic medical conditions (NOCMCs) through 365 days after completing treatment for recurrent CDAD were reported. NOCMCs were defined as any new ICD-10 diagnosis that is applied to the participant during the duration of the study, after receipt of the study agent, that is expected to continue for at least 3 months and requires continued health care intervention.
Time frame: Day 1 through Day 365
Number of Participants With a Serious Adverse Event (SAE) After Completing Treatment for Recurrent Clostridium Difficile-Associated Diarrhea (CDAD)
SAEs included any adverse event or suspected adverse reaction which, in the view of the investigator or sponsor, resulted in any of the following: death, life threatening adverse event, inpatient hospitalization or prolongation of existing hospitalization, a congenital anomaly/birth defect, persistent or significant disability or incapacity or substantial disruption of the ability to conduct normal life function.
Time frame: Day 1 through Day 365
Number of Participants With an Adverse Event (AE) After Completing Treatment for Recurrent Clostridium Difficile-Associated Diarrhea (CDAD)
Adverse events were defined as any noxious, pathologic, or unintended change in anatomic, physiologic, or metabolic functions, as indicated by physical signs, symptoms, and/or laboratory changes occurring in any phase of the clinical trial, regardless of their relationship to investigational product.
Time frame: Day 1 through Day 30
Number of Participants With Newly Acquired Transmissible Infectious Diseases Which Are Considered Adverse Events of Special Interest (AESI), After Completing Treatment for Recurrent Clostridium Difficile-Associated Diarrhea (CDAD)
Adverse Events of Special Interest were defined as newly acquired transmissible infectious agents or infectious diseases related to study product and the following agents: HIV type 1 and 2, Hepatitis A, B, C, Treponema pallidum, HTLV-1, -2, Cyclospora, Salmonella, Shigella, Campylobacter, E. coli 0157:H7, Shiga-toxin producing E. coli, Ova and enteric parasites including Isospora, Vancomycin-resistant Enterococcus (VRE), extended spectrum beta-lactamase (ESBL), carbapenemase producing gram-negative rods, methicillinresistant Staphylococcus aureus (MRSA), Helicobacter pylori, Rotavirus, Adenovirus, Norovirus, Vibrio, Giardia lamblia, Cryptosporidium, and Microsporidia.
Time frame: Day 1 through Day 365
Proportion of Participants With Clinical Response (Defined as no Recurrence of Clostridium Difficile-Associated Diarrhea (CDAD))
Clinical response was defined as those subjects who have no recurrence of CDAD through Day 30 after completing treatment for recurrent CDAD. CDAD was defined as bowel movements as determined by \>=3 unformed stools (soft or watery) within 24 consecutive hours and a positive PCR test for Clostridium difficile.
Time frame: Day 1 through Day 30
Number of Recurrences of Clostridium Difficile-Associated Diarrhea (CDAD) After Completing Treatment for Recurrent CDAD
Recurrence was defined as the re-establishment of diarrhea (frequency of passed unformed stools, \>=3 unformed stools within 24 consecutive hours) with a positive PCR test for C. difficile.
Time frame: Day 1 through Day 30
Number of Recurrences of Clostridium Difficile-Associated Diarrhea (CDAD) After Completing Treatment for Recurrent CDAD
Recurrence was defined as the re-establishment of diarrhea (frequency of passed unformed stools, \>=3 unformed stools within 24 consecutive hours) with a positive PCR test for C. difficile.
Time frame: Day 1 through Day 60
Proportion of Participants With Sustained Clinical Response
Sustained clinical response is defined as those subjects who responded by Day 30 with no recurrence of CDAD through Day 60 after randomization.
Time frame: Day 1 through Day 60
Time to First Clostridium Difficile-Associated Diarrhea (CDAD) Reoccurrence (Using the Date of First Positive PCR Post-enema)
The time (in weeks) until first CDAD recurrence was calculated as time from randomization to the end of the interval of ascertainment. Participants without a recurrence were censored at their last known contact date or their Day 60 visit, whichever occurred first.
Time frame: Day 1 through Day 60 visit windows reported as Weeks 1 through 8, respectively
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