Independent directory Public ClinicalTrials.gov records United States
ClinicalTrials.gov record
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Safety and Reactogenicity of FluBlok and Comparison of Immunogenicity, Efficacy and Effectiveness Against TIV

ClinicalTrials.gov ID: NCT00539864

Public ClinicalTrials.gov record NCT00539864. 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.

ClinicalTrials.gov public records Last synced Oct 17, 2026, 10:43 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Evaluation of Safety and Reactogenicity of FluBlok, Trivalent Recombinant Influenza Vaccine, and Comparison of the Immunogenicity, Efficacy and Effectiveness of FluBlok to a Licensed Egg-Grown Influenza Vaccine in Adults Aged 50 to 64

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The purpose of this study was to evaluate and compare the safety, reactogenicity, immunogenicity, relative efficacy and effectiveness of FluBlok to a licensed trivalent influenza vaccine (TIV)in healthy adults age 50-64 years.

Study identification

NCT ID
NCT00539864
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Lead sponsor
Protein Sciences Corporation
Industry
Enrollment
602 participants

Conditions and interventions

Conditions

Interventions

Biological

Eligibility (public fields only)

Age range
50 Years to 64 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
Sep 2007 (Type not available)
Primary completion
Apr 2008 (Actual)
Completion
Apr 2008 (Actual)
Last update posted
Jul 27, 2011

2007 – 2008

United States locations

U.S. sites
5
U.S. states
2
U.S. cities
5
Facility City State ZIP Site status
Kaiser Permanente Pediatric Clinic - Fresno Fresno California 93726 —
Kaiser Permanente Pediatric Clinic - Hayward Hayward California 94545 —
Kaiser Permanente Pediatric Clinic - Roseville Roseville California 95661 —
Kaiser Permanente Pediatric Clinic - Sacramento Sacramento California 95823 —
Kaiser Permanente Honolulu Hawaii 96814 —

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 NCT00539864, 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 Jul 27, 2011 · Synced Oct 17, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT00539864 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →