Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.

NCT00395174 · ClinicalTrials.gov registry record · Phase 3

Comparison of the Immunogenicity, Safety and Reactogenicity of FluBlok, To a Licensed Vaccine In Elderly Adults

A Phase 3 study, sponsored by Protein Sciences Corporation.

Completed
Registry status
Phase 3
Development phase
870
Enrollment target

NCT00395174: Completed Phase 3 study, sponsored by Protein Sciences Corporation.

NCT00395174 is a Phase 3 study that has completed, run by Protein Sciences Corporation. The registered enrollment target is 870 participants, above the 772-participant average among 15,282 other Phase 3 trials with a reported enrollment target (13% higher). According to ClinicalTrials.gov, the official US trial registry.

View on ClinicalTrials.gov ↗

View your shortlist →

The verdict

NCT00395174, a Phase 3 study, has completed, sponsored by Protein Sciences Corporation.

COMPLETED
Registry status
Phase 3
Development phase
870 participants
Enrollment target

Study Summary

The purpose of this study were to obtain additional evidence in support of the safety and immunogenicity of a recombinant hemagglutinin (rHA) vaccine in an elderly population, and to establish non-inferiority of the immunogenicity of the rHA vaccine when compared with a licensed trivalent influenza vaccine (TIV). Another purpose was to provide a preliminary estimate of the relative efficacy of the two vaccines against culture-positive influenza-like illness during the subsequent epidemic.

Interventions

  • BIOLOGICAL Influenza Vaccination

Trial Details

FieldValue
Enrollment Target 870 participants
Start Date 2006-10
Est. Completion 2007-05
Phase Phase 3
Protein Sciences Corporation

12 total trials

What the finished NCT00395174 record still lists

NCT00395174 is an interventional study that assigns participants to a tested intervention. The registered 870 participants enrollment target is mid-sized for trials with a published cap, above the 772-participant average among 15,282 other Phase 3 trials with a reported enrollment target (13% higher).

The record links to 0 conditions, and to 1 intervention - of which Influenza Vaccination is the first listed.

NCT00395174 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT00395174 about?

NCT00395174 is a clinical study titled "Comparison of the Immunogenicity, Safety and Reactogenicity of FluBlok, To a Licensed Vaccine In Elderly Adults". The purpose of this study were to obtain additional evidence in support of the safety and immunogenicity of a recombinant hemagglutinin (rHA) vaccine in an elderly population, and to establish non-inferiority of the immunogenicity of the rHA vaccine when compared with a licensed trivalent influenza ...

What is the current status of trial NCT00395174?

This trial is currently completed. It is a Phase 3 study. The enrollment target is 870 participants. The study started on 2006-10. Estimated completion is 2007-05.

What interventions are being tested in trial NCT00395174?

The interventions under investigation include: Influenza Vaccination (BIOLOGICAL).

Who is sponsoring clinical trial NCT00395174?

This trial is sponsored by Protein Sciences Corporation, which has 12 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT00395174's enrollment target sits among peer trials

870 373rd of 2000 higher than 1,627 of 2,000 other Phase 3 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 3 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

Nationwide trials with similar profiles

Cross-condition peers matched on enrollment target and registry start date, not the same-condition list above.

Similar enrollment target

  • NCT04097145 · 870 participants · NA

    Edwards PASCAL Transcatheter Valve Repair System Pivotal Clinical Trial

  • NCT06822790 · 869 participants · Phase 3

    Long-Term Safety and Efficacy of Plozasiran in Adults With Hypertriglyceridemia

  • NCT06077760 · 868 participants · Phase 3

    A Study of Intismeran Autogene (V940) Plus Pembrolizumab (MK-3475) Versus Placebo Plus Pembrolizumab in Participants With Non-small Cell Lung Cancer (V940-002)

  • NCT04933552 · 867 participants

    Post-Authorization Safety Study for Assessment of Pregnancy Outcomes in Patients Treated With Mayzent

Similar registry start date

  • NCT05988463 · started 2027-01-01 · Phase 1

    Dose-Escalation Study of Artesunate Patients With IPF

  • NCT07219706 · started 2026-12-10 · NA

    Dietary Fiber and Time Restricted Eating

  • NCT02831335 · started 2026-12-01

    Technical Development of Multi-Parametric Renocerebral MRI

  • NCT05962346 · started 2026-12 · NA

    Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia

Source: ClinicalTrials.gov NCT00395174, the US trial registry maintained by the National Library of Medicine. NCT00395174 (mid enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.