Efficacy Study of an Investigational Influenza Vaccine (Vero Cell Derived) to Prevent Culture Confirmed Influenza Infection (CCII)
Public ClinicalTrials.gov record NCT00566345. 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
Double Blind, Placebo Controlled Phase 3 Study of the Efficacy of an Investigational Vero Cell-Derived Influenza Vaccine (VCIV) to Prevent Culture Confirmed Influenza Infection (CCII)
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The primary purpose of this study is to demonstrate the efficacy of an investigational Vero-cell derived influenza vaccine to prevent infection in an adult population with an influenza virus that is antigenically similar to one of the three strains in the vaccine. All subjects will be randomized to receive a single 0.5 ml intramuscular injection from one of three lots of seasonal Vero-cell derived influenza vaccine or saline placebo. Subjects will be monitored for 180 days following vaccination for occurrence of adverse events. For determining antibody response, subjects will have one blood draw before and one blood draw 21 days after vaccination.
Study identification
- NCT ID
- NCT00566345
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Enrollment
- 3,670 participants
Conditions and interventions
Conditions
Interventions
- Inactivated seasonal influenza vaccine (split virus, Vero cell-derived) Biological
- Phosphate buffered saline Other
Biological · Other
Eligibility (public fields only)
- Age range
- 18 Years to 49 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
- Nov 2007 (Type not available)
- Primary completion
- Jun 2008 (Actual)
- Completion
- Jun 2008 (Actual)
- Last update posted
- Oct 17, 2023
2007 – 2008
United States locations
- U.S. sites
- 34
- U.S. states
- 18
- U.S. cities
- 34
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Not listed | Tucson | Arizona | — | — |
| Not listed | Anaheim | California | — | — |
| Not listed | Sacramento | California | — | — |
| Not listed | San Diego | California | — | — |
| Not listed | San Francisco | California | — | — |
| Not listed | Clearwater | Florida | — | — |
| Not listed | Jacksonville | Florida | — | — |
| Not listed | Pembroke Pines | Florida | — | — |
| Not listed | South Miami | Florida | — | — |
| Not listed | Chicago | Illinois | — | — |
| Not listed | Lenexa | Kansas | — | — |
| Not listed | Overland Park | Kansas | — | — |
| Not listed | Lexington | Kentucky | — | — |
| Not listed | Metairie | Louisiana | — | — |
| Not listed | Columbia | Maryland | — | — |
| Not listed | Kansas City | Missouri | — | — |
| Not listed | St Louis | Missouri | — | — |
| Not listed | Omaha | Nebraska | — | — |
| Not listed | Las Vegas | Nevada | — | — |
| Not listed | Rochester | New York | — | — |
| Not listed | Charlotte | North Carolina | — | — |
| Not listed | Raleigh | North Carolina | — | — |
| Not listed | Winston-Salem | North Carolina | — | — |
| Not listed | Goose Creek | South Carolina | — | — |
| Not listed | Spartanburg | South Carolina | — | — |
| Not listed | Nashville | Tennessee | — | — |
| Not listed | Austin | Texas | — | — |
| Not listed | Dallas | Texas | — | — |
| Not listed | Fort Worth | Texas | — | — |
| Not listed | Plano | Texas | — | — |
| Not listed | San Angelo | Texas | — | — |
| Not listed | San Antonio | Texas | — | — |
| Not listed | Salt Lake City | Utah | — | — |
| Not listed | Norfolk | Virginia | — | — |
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 NCT00566345, 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 Oct 17, 2023 · Synced Oct 17, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT00566345 live on ClinicalTrials.gov.