Half-Dose Flu Vaccine Study in Healthy Adults
Public ClinicalTrials.gov record NCT00006146. 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
Evaluation of the Immunogenicity of Low Dose Trivalent Inactivated Influenza Vaccine in Healthy Adults
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
It appears likely that there will be a delay and possibly a reduction in the amount of influenza vaccine available for the 2000-2001 influenza season. One possible way of increasing the availability of influenza vaccine for this year is to use a half-dose in healthy adults. The objective of this study is to determine if the immune system responds to a half-dose the same way it responds to a whole dose. This study will use the currently approved inactivated influenza vaccine in healthy adults ages 18 to 49 years old. If the immune response to the half-dose is not significantly different than the immune response generated to the whole dose, this could be a strategy to extend the amount of vaccine that could be available in this age group.
Study identification
- NCT ID
- NCT00006146
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 2
- Enrollment
- 840 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
- Jul 31, 2000
- Primary completion
- Not listed
- Completion
- Aug 31, 2000
- Last update posted
- Aug 26, 2010
2000
United States locations
- U.S. sites
- 6
- U.S. states
- 6
- U.S. cities
- 6
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| UCLA Center for Vaccine Research | Torrance | California | 90502 | — |
| Maryland CARES | College Park | Maryland | — | — |
| Center for Vaccine Development | St Louis | Missouri | 63110 | — |
| Univ of Rochester Medical Center | Rochester | New York | 14642 | — |
| Inf Dis Clinic at Gamble Research Clinic and Bethesda Hosp | Cincinnati | Ohio | 45206 | — |
| Baylor College of Medicine | Houston | Texas | 77030 | — |
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 NCT00006146, 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 NCT00006146 live on ClinicalTrials.gov.