Immunogenicity and Safety of Different Doses of Fluzone® Influenza
Public ClinicalTrials.gov record NCT00253734. 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
Immunogenicity and Safety of a Split, Inactivated, Trivalent Influenza Vaccine Administered by Intradermal Route Compared to an Intramuscular Vaccination With Fluzone® in Healthy Adults
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The purpose of this research study is to find out if giving the smaller dose of flu vaccine under the skin generates antibodies against flu compared to giving the vaccine the usual way, as a shot in the arm. If using smaller doses in this manner is effective, the current supply of vaccine could be used to make more doses to give to more people. About 217 healthy adults, 18 to 49 years of age, will participate. The study will be conducted at one site in the United States and subjects are expected to participate for about 6 months. Blood samples will be taken to assess the immune system response. Local and systemic safety will be evaluated in the 28 days following vaccination.
Study identification
- NCT ID
- NCT00253734
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 2
- Enrollment
- 217 participants
Conditions and interventions
Conditions
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
- Oct 31, 2005
- Primary completion
- Sep 30, 2006
- Completion
- Oct 31, 2006
- Last update posted
- Jun 2, 2013
2005 – 2006
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Saint Louis University | St Louis | Missouri | 63110 | — |
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 NCT00253734, 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 Jun 2, 2013 · Synced Sep 9, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00253734 live on ClinicalTrials.gov.