Cell-Mediated Immune Responses to Influenza A/H5N1 Vaccine
1 other identifier
interventional
339
1 country
3
Brief Summary
This study may determine whether laboratory studies of people's blood cells, who have received vaccines against H5 influenza, or "bird flu," will help to decide if the vaccines are going to be prevent disease effectively. About 232 people, 18 years and older, enrolled in the studies "A Randomized, Double-Blinded, Placebo-Controlled, Phase I/II, Dose-Ranging Study of the Safety, Reactogenicity, and Immunogenicity of Intramuscular Inactivated Influenza A/H5N1 Vaccine in Healthy Adults" and "in Healthy Elderly Adults" will participate. Participants may be involved in this study for about 14 months. Procedures may include blood draws, physical exams, and medical history reviews.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Oct 2005
Shorter than P25 for not_applicable
3 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
October 1, 2005
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 1, 2006
CompletedStudy Completion
Last participant's last visit for all outcomes
March 1, 2006
CompletedFirst Submitted
Initial submission to the registry
April 5, 2006
CompletedFirst Posted
Study publicly available on registry
April 6, 2006
CompletedAugust 16, 2013
May 1, 2007
5 months
April 5, 2006
August 15, 2013
Conditions
Keywords
Study Arms (1)
Influenza A/H5N1
EXPERIMENTAL232 subjects receiving Influenza A/H5N1 vaccine.
Interventions
232 subjects receive Influenza A/H5N1 vaccine as part of DMID protocols 04-063 and 04-076.
Eligibility Criteria
You may qualify if:
- All subjects who are eligible and enrolled in the main monovalent subvirion H5 vaccine trials \[Division of Microbiology and Infectious Diseases (DMID) studies 04-063 and 04-076\] and have agreed to the extra blood draws for the cell-mediated immunity (CMI) sub-study will be enrolled.
- Subjects will not be recruited outside the main vaccine trials or future DMID sponsored influenza A/H5N1 studies.
- Subjects who understand and sign the consent form for this study.
- Subjects who meet pre-screening qualifications for the DMID study will be eligible for the initial pre-vaccination blood draw.
You may not qualify if:
- \. All subjects who are ineligible for the main monovalent subvirion H5 vaccine trials will not be eligible for the cell-mediated immunity (CMI) sub-study.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (3)
University of Maryland Baltimore
Baltimore, Maryland, 21201, United States
University of Rochester
Rochester, New York, 14642, United States
Vanderbilt University
Nashville, Tennessee, 37232-2581, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NON RANDOMIZED
- Purpose
- PREVENTION
- Sponsor Type
- NIH
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
April 5, 2006
First Posted
April 6, 2006
Study Start
October 1, 2005
Primary Completion
March 1, 2006
Study Completion
March 1, 2006
Last Updated
August 16, 2013
Record last verified: 2007-05