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Bezlotoxumab (BEZLO) In Addition To Standard Of Care (SOC) Vancomycin For The Treatment of Multi-Recurrent Clostridium Difficile Infection

Phase 4
Completed
Conditions
Clostridium Difficile Infection Recurrence
Interventions
Registration Number
NCT03880539
Lead Sponsor
University of Kansas Medical Center
Brief Summary

This is a research study to collect information from people that have Clostridium difficile infection (CDI) and are treated with a standard antibiotic treatment in which the antibiotic dose is gradually reduced over 6 weeks and bezlotoxumab (BEZLO), an approved monoclonal antibody targeting C. difficile toxin, which has shown to reduce CID recurrence when used in combination with standard antibiotic treatment.

Detailed Description

Clostridium difficile (C. diff) is a type of bacteria which causes diarrhea in some people who receive antibiotics for other infections. The current antibiotics used to treat C diff infection (CDI) are usually successful in treating the initial episode of CDI, but may not prevent recurrent infection. To prevent recurrent CDI, standard oral antibiotic treatment with vancomycin is extended by gradually reducing the dose over 4-8 weeks. This is called antibiotic taper. Bezlotoxumab (BEZLO), a monoclonal antibody targeting C. difficile toxin B, is an approved medication that has also been shown to reduce CDI recurrence in patients receiving antibacterial drug treatment of CDI. In this study, approximately 12 people with multi-recurrent CDI will be treated with BEZLO in combination with standard oral tapered vancomycin. Study participation will last 16 weeks. The rate of CDI recurrence in this group will be compared to information collected from approximately 72 historical patients with multi-recurrent CDI treated with oral tapered vancomycin only.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
4
Inclusion Criteria

Not provided

Exclusion Criteria
  • i) active chronic diarrheal illness, such as (but not limited to) ulcerative colitis or Crohn's disease or with a condition such that they routinely pass loose stool
  • ii) planned surgery for CDI within 24 hours
  • iii) positive pregnancy test in the 48 hours before the infusion or unwilling to undergo pregnancy testing if a pre-menopausal female who is not sterilized and therefore has the potential to bear a child
  • iv) breastfeeding or planning to breastfeed prior to the completion of the study period
  • v) previous receipt of BEZLO
  • vi) receipt of immune globulin within 6 months prior to enrollment or planning to receive immune globulin prior to completion of the 16-week study period
  • vii) receipt of non-SOC CDI therapy within 14 days prior to enrollment
  • viii) planned treatment with SOC therapy for longer than 6 weeks
  • ix) receipt of medications to control diarrhea such as loperamide, diphenoxylate hydrochloride/atropine sulfate at any time prior to completion of the 16-week study period
  • x) medical history of decompensated congestive heart failure

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
BEZLO + SOC taperVancomycin OralSingle arm of patients treated with BEZLO + SOC oral VAN pulse/taper.
BEZLO + SOC taperbezlotoxumabSingle arm of patients treated with BEZLO + SOC oral VAN pulse/taper.
Primary Outcome Measures
NameTimeMethod
Rate of CDI reoccurrence at 12 weeks12 weeks

If diarrhea resolves (defined as \<2 loose stools per day for at least 2 consecutive days) and subsequently begins again (3 or more loose stools in 24 hours or less for at least 2 consecutive days), this will represent a new episode of diarrhea. If there is a new episode of diarrhea at any time during the 12-week study period, an unscheduled visit will be conducted. A stool sample will be provided for any new episode of diarrhea which occurs and a stool test for toxigenic C. difficile (NAAT plus EIA) will be performed. CDI reoccurrence will be defined as new episode of diarrhea and positive stool test for toxigenic C. difficile (NAAT plus EIA).

Secondary Outcome Measures
NameTimeMethod

Trial Locations

Locations (1)

University of Kansas Medical Center

🇺🇸

Kansas City, Kansas, United States

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