AstraZeneca
The purpose of this study is to evaluate the efficacy and safety of AZD5148 for prevention of recurrence of Clostridioides difficile infection in Individuals 18 years of age and above.
Approximately 230 participants will be enrolled and randomized 1:1 to receive a single dose of either AZD5148 or placebo (normal saline). Route of administration (intramuscular or intravenous push) will be according to the Investigator's choice. Stratification will be based on geographical region. Study details include: * Up to 2 site visits for confirmation of eligibility and dose administration, including stool sample collection; * Up to 7 planned visits; * Contacts initiated by site staff -weekly, later monthly follow up; * Electronic diary completion.
Inclusion Criteria: Participant must be ≥ 18 years of age at the time of signing the informed consent, capable of giving signed informed consent. Participants with a qualifying C. difficile infection episode at the time of providing informed consent defined by: * History of 3 or more unformed stools (Bristol stool scale 6 or 7) in ≤ 24 hours for 2 consecutive calendar days, (Note: Diarrhea is not required to be present on the day of IMP administration) and * Positive local C. difficile toxin test (eg, immune assay or CCNA) on a stool sample collected during this episode, as part of routine…
Participants will receive a single dose A of AZD5148 administered via either intramuscular injection or intravenous push.
Participants will receive a single dose of placebo (0.9% (w/v) sodium chloride for injection) administered via either intramuscular injection or intravenous push.