Protective Efficacy of Flublok® Quadrivalent Versus Licensed Inactivated Influenza Vaccine in Adults ≥50 Years of Age
Public ClinicalTrials.gov record NCT02285998. 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
Comparison of the Protective Efficacy of Flublok® Quadrivalent Versus Licensed Inactivated Influenza Vaccine (IIV4) in Healthy, Medically Stable Adults ≥50 Years of Age
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The goal of this study is to establish that Flublok Quadrivalent is non-inferior to fully licensed (traditional approval status) quadrivalent inactivated influenza vaccine (IIV4) in protecting against laboratory-confirmed clinical influenza disease in the ≥50 year age population.
Study identification
- NCT ID
- NCT02285998
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Enrollment
- 9,003 participants
Conditions and interventions
Conditions
Interventions
- Flublok Quadrivalent Influenza Vaccine Biological
- Inactivated Influenza Vaccine Biological
Biological
Eligibility (public fields only)
- Age range
- 50 Years and older
- 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
- Oct 2014 (Type not available)
- Primary completion
- May 2015 (Actual)
- Completion
- May 2015 (Actual)
- Last update posted
- Oct 27, 2017
2014 – 2015
United States locations
- U.S. sites
- 38
- U.S. states
- 26
- U.S. cities
- 37
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Coastal Clinical Research | Mobile | Alabama | 36608 | — |
| Clinical Research Consortium Arizona | Tempe | Arizona | 85283 | — |
| Baptist Health Center for Clinical Research | Little Rock | Arkansas | 72205 | — |
| Northern California Clinical Research Center | Redding | California | 96001 | — |
| Benchmark Research - Sacramento | Sacramento | California | 95816 | — |
| Benchmark Research - San Francisco | San Francisco | California | 94102 | — |
| Lynn Institute of the Rockies | Colorado Springs | Colorado | 80907 | — |
| Clinical Research Consulting | Milford | Connecticut | 06460 | — |
| Clinical Research of South Florida | Coral Gables | Florida | 33134 | — |
| Avail Clinical Research | DeLand | Florida | 32720 | — |
| Westside Center for Clinical Research | Jacksonville | Florida | 32205 | — |
| Jacksonville Center for Clinical Research | Jacksonville | Florida | 32216 | — |
| Progressive Medical Research | Port Orange | Florida | 32127 | — |
| Meridian Research | Savannah | Georgia | 31406 | — |
| ACR - Boise | Meridian | Idaho | 83642 | — |
| Heartland Research Associates, LLC | Wichita | Kansas | 67207 | — |
| Central Kentucky Research Associates | Lexington | Kentucky | 40509 | — |
| Benchmarch Research - New Orleans | Metairie | Louisiana | 70006 | — |
| ActivMed Practices & Research | Methuen | Massachusetts | 01844 | — |
| Center for Pharmaceutical Research | Kansas City | Missouri | 64114 | — |
| Meridian Research | Bellevue | Nebraska | 68005 | — |
| Meridian Research | Norfolk | Nebraska | 68701 | — |
| Meridian Clinical Research | Omaha | Nebraska | 68164 | — |
| Clinical Research Consortium-Nevada | Las Vegas | Nevada | 89119 | — |
| ActivMed Practices & Research | Newington | New Hampshire | 03801 | — |
| Regional Clinical Research, Inc. | Endwell | New York | 13760 | — |
| Rochester Clinical Research | Rochester | New York | 14609 | — |
| Wake Research | Raleigh | North Carolina | 27612 | — |
| Rapid Medical Research, Inc. | Cleveland | Ohio | 44122 | — |
| Lynn Institute of Norman | Norman | Oklahoma | 73069 | — |
| Lynn Health Science Institute | Oklahoma City | Oklahoma | 73112 | — |
| Meridian Research | Dakota Dunes | South Dakota | 57049 | — |
| Clinical Research Associates | Nashville | Tennessee | 37203 | — |
| Benchmark Reseach | Austin | Texas | 78705 | — |
| Benchmark Research - Fort Worth | Fort Worth | Texas | 76135 | — |
| Benchmark Research - San Angelo | San Angelo | Texas | 76904 | — |
| Jean Brown Research | Salt Lake City | Utah | 84124 | — |
| Clinical Research Associates of Tidewater | Norfolk | Virginia | 23507 | — |
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 NCT02285998, 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 27, 2017 · 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 NCT02285998 live on ClinicalTrials.gov.