- Conditions
- Clostridoides Difficile Associated Disease
- Interventions
- C.difficile vaccine, Saline Placebo
- Biological · Other
- Lead sponsor
- Pfizer
- Industry
- Eligibility
- 65 Years and older
- Enrollment
- 32,500 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2025 – 2029
- U.S. locations
- 141
- States / cities
- Athens, Alabama • Guntersville, Alabama • Huntsville, Alabama + 89 more
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