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A Phase IIb Study of the Efficacy and Safety of AZD5148 to Prevent Recurrence of Clostridioides difficile Infection

A Phase IIb, Randomized, Double-blind, Placebo-controlled Study to Evaluate the Efficacy and Safety of AZD5148 for Prevention of Recurrence of Clostridioides difficile Infection in Individuals 18 Years of Age and Above - PRISM

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT2031250579
Enrollment
10
Registered
2025-12-18
Start date
2026-01-16
Completion date
Unknown
Last updated
2026-05-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Clostridioides difficile infection

Interventions

AZD5148, 400 mg, single dose, IM or IV push / Placebo (0.9% (w/v) sodium chloride)

Sponsors

Ageishi Yuji
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

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: - Positive local C. difficile toxin test (eg, immune assay or CCNA) on an unformed stool sample collected during this episode, and - Receipt of standard of care antibacterial drug therapy for C. difficile infection (fidaxomicin, vancomycin or metronidazole) for this episode, with planned duration of at least 10 and at most 25 days at time of IMP administration. Note: Diarrhea is not required to be present on the day of investigational medicinal product (IMP) administration. Body weight >_ 40 kg

Exclusion criteria

Exclusion criteria: History of inflammatory bowel disease (eg, ulcerative colitis, Crohn's disease, microscopic colitis). Participant with a non - CDI (C. difficile infection) condition such that the participant routinely passes loose stool (eg, patients with an ostomy) Planned surgery for C. difficile infection within 24 hours of enrollment Current toxic megacolon and/or small bowel ileus Any history of total colectomy or bariatric surgery (bariatric surgery which does not disrupt the gastrointestinal lumen, ie, restrictive procedures such as banding, are permitted). Major gastrointestinal surgery as assessed by the Investigator (eg, significant bowel resection or diversion) within 90 days before enrollment (this does not include appendectomy or cholecystectomy) Due to receive more than 25 days of antibacterial drug therapy for C. difficile infection for the qualifying C. difficile infection episode Treatment with a fecal donor transplant or fecal microbiota product in the 180 days before IMP administration, are receiving or planned administration for the qualifying episode of C. difficile infection, or planned administration during the 180 days after IMP administration Treatment with bezlotoxumab in the 180 days before IMP administration, are receiving or planned administration for the qualifying episode of CDI, or planned administration during the 180 days after IMP administration.

Design outcomes

Primary

MeasureTime frame
First occurrence of recurrence of C difficile infection [ Time Frame: Day 1 through day 91 ]

Countries

Australia, Canada, Denmark, France, Germany, Greece, Hungary, Italy, Japan, Spain, Sweden, UK, USA

Contacts

Public ContactYuji Ageishi

Astrazeneka K.K

RD-clinical-information-Japan@astrazeneca.com+81-6-4802-3600

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: May 30, 2026