Evaluation Of Clostridium Difficile Vaccine Lot Consistency In Healthy Adults 65 To 85 Years Of Age
Public ClinicalTrials.gov record NCT03579459. 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 3, PLACEBO-CONTROLLED, RANDOMIZED, OBSERVER-BLINDED STUDY TO EVALUATE THE LOT CONSISTENCY, SAFETY, TOLERABILITY, AND IMMUNOGENICITY OF A CLOSTRIDIUM DIFFICILE VACCINE IN HEALTHY ADULTS 65 TO 85 YEARS OF AGE
Study identification
- NCT ID
- NCT03579459
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Lead sponsor
- Pfizer
- Industry
- Enrollment
- 1,317 participants
Conditions and interventions
Conditions
Interventions
- Clostridium difficile vaccine Biological
- placebo Biological
Biological
Eligibility (public fields only)
- Age range
- 65 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
- Jul 30, 2018
- Primary completion
- Aug 5, 2019
- Completion
- Aug 5, 2019
- Last update posted
- Jan 18, 2023
2018 – 2019
United States locations
- U.S. sites
- 24
- U.S. states
- 15
- U.S. cities
- 23
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Coastal Clinical Research, Inc. | Mobile | Alabama | 36608 | — |
| Paradigm Clinical Research Centers, Inc. | Redding | California | 96001 | — |
| Clinical Research of South Florida | Coral Gables | Florida | 33134 | — |
| Avail Clinical Research, LLC | DeLand | Florida | 32720 | — |
| Research Centers of America, LLC | Hollywood | Florida | 33024 | — |
| Atlanta Center for Medical Research | Atlanta | Georgia | 30331 | — |
| Clinical Research Atlanta | Stockbridge | Georgia | 30281 | — |
| East-West Medical Research Institute | Honolulu | Hawaii | 96814 | — |
| Advanced Clinical Research | Meridian | Idaho | 83642 | — |
| Heartland Research Associates, LLC | Wichita | Kansas | 67207 | — |
| Ochsner Clinic Foundation | New Orleans | Louisiana | 70121 | — |
| Meridian Clinical Research, LLC | Norfolk | Nebraska | 68701 | — |
| Meridian Clinical Research, LLC | Omaha | Nebraska | 68134 | — |
| Amici Clinical Research | Raritan | New Jersey | 08869 | — |
| PMG Research of Charlotte, LLC | Charlotte | North Carolina | 28209 | — |
| PMG Research of Wilmington, LLC | Wilmington | North Carolina | 28401 | — |
| Lynn Health Science Institute | Oklahoma City | Oklahoma | 73112 | — |
| Medical Research South, LLC | Goose Creek | South Carolina | 29445 | — |
| Benchmark Research | Austin | Texas | 78705 | — |
| Diagnostics Research Group | San Antonio | Texas | 78229 | — |
| J. Lewis Research Inc. / Foothill Family Clinic Draper | Draper | Utah | 84020 | — |
| J. Lewis Research, Inc./ Foothill Family Clinic South | Salt Lake City | Utah | 84109 | — |
| J. Lewis Research, Incorporated/Foothill Family Clinic South | Salt Lake City | Utah | 84121 | — |
| J. Lewis Research, Inc. / Jordan River Family Medicine | South Jordan | Utah | 84095 | — |
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 NCT03579459, 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 Jan 18, 2023 · Synced May 20, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03579459 live on ClinicalTrials.gov.