A Study To Investigate A Clostridium Difficile Vaccine In Healthy Adults Aged 50 To 85 Years, Who Will Each Receive 3 Doses Of Vaccine.
Public ClinicalTrials.gov record NCT02052726. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A Phase 1, Placebo-controlled, Randomized, Observer-blinded Trial To Evaluate The Safety, Tolerability, And Immunogenicity Of An Adjuvanted Clostridium Difficile Vaccine Administered As A 3-dose Regimen In Healthy Adults Aged 50 To 85 Years
Study identification
- NCT ID
- NCT02052726
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 1
- Lead sponsor
- Pfizer
- Industry
- Enrollment
- 184 participants
Conditions and interventions
Conditions
Interventions
- C. difficile vaccine with adjuvant Biological
- placebo Biological
Biological
Eligibility (public fields only)
- Age range
- 50 Years to 85 Years
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jan 21, 2014
- Primary completion
- May 1, 2015
- Completion
- May 4, 2015
- Last update posted
- Dec 3, 2018
2014 – 2015
United States locations
- U.S. sites
- 6
- U.S. states
- 4
- U.S. cities
- 5
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Vince & Associates Clinical Research, Inc. | Overland Park | Kansas | 66212 | — |
| Vince & Associates Clinical Research | Overland Park | Kansas | 66212 | — |
| PMG Research of Raleigh, LLC d/b/a PMG Research of Cary | Cary | North Carolina | 27518 | — |
| Carolina Phase I Research, LLC | Raleigh | North Carolina | 27612 | — |
| Texas Center for Drug Development, Inc. | Houston | Texas | 77081 | — |
| Clinical Alliance for Research and Education - Infectious Diseases, LLC (CARE-ID) | Annandale | Virginia | 22003 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
Non-U.S. locations
This page focuses on the U.S. directory. The official record also lists 4 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT02052726, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Dec 3, 2018 · Synced Jul 23, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT02052726 live on ClinicalTrials.gov.