Th1 Response to Influenza: Aging and Vaccine Efficacy
Public ClinicalTrials.gov record NCT00396305. 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.
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This research study is being done because influenza (flu) affects many people each year throughout the world. The elderly and those with chronic health problems are at greater risk for complications from the flu. The purpose of this research study is to evaluate vaccination strategies in the elderly and others receiving the influenza vaccination in order to increase protection. All subjects will receive the flu vaccine as an injection in the muscle of the upper arm. Participants may receive a booster \[an extra dose of vaccine or placebo (inactive substance)\] shot. Study participants will include healthy adult volunteers, ages 21-40, 60-89, or 90 years and older. Subjects will be involved in study related procedures for 6 months.
Study identification
- NCT ID
- NCT00396305
- Recruitment status
- Terminated
- Study type
- Interventional
- Phase
- Phase 4
- Enrollment
- 41 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 21 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 31, 2006
- Primary completion
- Aug 31, 2007
- Completion
- Dec 31, 2007
- Last update posted
- Aug 26, 2010
2006 – 2008
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Eastern Virginia Medical School | 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 NCT00396305, 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 Aug 26, 2010 · Synced Sep 5, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00396305 live on ClinicalTrials.gov.