A Study to Learn About a Clostridioides Difficile Vaccine in People 65 Years of Age and Older

Recruiting Phase 3 Interventional Study
Clostridioides Difficile Associated Disease
No Placebo Group Every participant receives an active treatment — no one gets a placebo. Pivotal Trial This treatment is in the last trial phase before FDA approval. Prior Safety Data This treatment has already been tested in at least one earlier human trial. Healthy Volunteers Welcome You do not need to have the condition being studied to take part.
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At a Glance
Age
65 and older
Sex
Any
Trial phase
Phase 3
Study type
Interventional
Purpose
Prevention
Participants needed
32,000 (estimated)
Sponsor
Pfizer · Industry
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About This Trial
The purpose of the study is to learn about how effective, safe, and tolerable the Clostridioides difficile (C. difficile) vaccine is in decreasing the number of C. difficile infections (pCDI) in adults 65 years of age or older. The participants will receive either the C. difficile vaccine or placebo (saline). A placebo does not contain any active ingredients. The vaccines will be given as a shot …
Trial Locations
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Eligibility Criteria
Who Can Join the Study (Inclusion Criteria): • People with recent or future planned contact with healthcare systems or who have recently received antibiotics. Who Cannot Join the Study (Exclusion Criteria): * Anyone who has had CDI before. * Anyone who has had surgery to remove part of their smal…
Contacts

Pfizer CT.gov Call Center

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ClinicalTrials.gov_Inquiries@pfizer.com

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