Evaluation of a 3-dose Vaccination Regimen With One of Three Ascending Dose Levels of Clostridium Difficile Vaccine With or Without Adjuvant in Healthy Adults Aged 50 to 85 Years
Public ClinicalTrials.gov record NCT01706367. 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 A Clostridium Difficile Vaccine Administered With Or Without Adjuvant, In A 3-Dose Regimen In Healthy Adults Aged 50 To 85 Years
Study identification
- NCT ID
- NCT01706367
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 1
- Lead sponsor
- Pfizer
- Industry
- Enrollment
- 192 participants
Conditions and interventions
Conditions
Interventions
- C. difficile vaccine Biological
- C. difficile vaccine +adjuvant 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
- Aug 31, 2012
- Primary completion
- Dec 31, 2013
- Completion
- Dec 31, 2013
- Last update posted
- Mar 5, 2014
2012 – 2014
United States locations
- U.S. sites
- 4
- U.S. states
- 3
- U.S. cities
- 4
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Pfizer Investigational Site | Pembroke Pines | Florida | 33026 | — |
| Pfizer Investigational Site | South Miami | Florida | 33143 | — |
| Pfizer Investigational Site | Overland Park | Kansas | 66212 | — |
| Pfizer Investigational Site | Cary | North Carolina | 27518 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT01706367, 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 Mar 5, 2014 · Synced May 8, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT01706367 live on ClinicalTrials.gov.