Two-site Intradermal Influenza Vaccination in Elderly
1 other identifier
interventional
180
1 country
1
Brief Summary
One-site dose sparing intradermal influenza vaccination in elderly had been studied but resulted in unsatisfactory outcomes. The investigators evaluate the safety and immunogenicity of the two-site intradermal injection of influenza vaccine containing all 6 and 12 micrograms of hemagglutinin antigen per strain (with 4/10th and 8/10th of a regular 15 microgram HA/strain intramuscular vaccine respectively) in elderly over 60 years of age. An influenza vaccine administered intramuscularly at the standard dose is used as the reference vaccine.
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 2010
Longer than P75 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
September 13, 2010
CompletedFirst Posted
Study publicly available on registry
September 16, 2010
CompletedStudy Start
First participant enrolled
October 1, 2010
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 1, 2018
CompletedStudy Completion
Last participant's last visit for all outcomes
April 1, 2018
CompletedApril 6, 2018
April 1, 2018
7.5 years
September 13, 2010
April 5, 2018
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
immunogenicity
evaluate the immunogenicity of the two-site intradermal influenza vaccination containing all 6 and 12 micrograms of hemagglutinin antigen per strain (with 4/10th and 8/10th of a regular 15 microgram HA/strain intramuscular vaccine respectively) in elderly over 60 years of age , as measured by the titer of hemagglutination inhibition (HAI) antibodies, in order to determine whether it would meet the guidelines of the European Committee for Proprietary Medicinal Products (CPMP) for the annual relicensure of influenza vaccines
4 months
Secondary Outcomes (2)
comparison of the immunogenicity
4 months
safety
4 months
Study Arms (3)
group 1
EXPERIMENTALreceives a single intramuscular dose of 0.5 ml of trivalent influenza vaccine, containing at least 15 microgram of hemagglutinin antigen per strain
group 2
EXPERIMENTALreceives two-site intradermal dose of 0.1 ml each, containing at least 3 microgram of hemagglutinin antigen per strain per site
group 3
EXPERIMENTALreceives two-site intradermal dose of 0.2 ml each, containing at least 6 microgram of hemagglutinin antigen per strain per site
Interventions
receives a single intramuscular dose of 0.5 ml of trivalent influenza vaccine, containing at least 15 microgram of hemagglutinin antigen per strain
Eligibility Criteria
You may qualify if:
- healthy male or female volunteer aged at least 60 years old
- willing to participate in this study
You may not qualify if:
- previous influenza vaccination within 6 months
- systemic ypersensitivity to egg or chicken proteins or any of the vaccine components
- history of a life-threatening reaction to the study vaccine or a vaccine containing the same constituents.
- ongoing acute febrile illness (oral temperature, ≥37.5 c )
- congenital or acquired immunodeficiency
- treatment with immunosuppressive or other immune- modifying drugs or cancer therapy within previous 6 months
- long-term treatment with systemic corticosteroids
- receipt of blood or blood-derived products in the previous 3 months
- history of thrombocytopenia or a bleeding disorder contraindicating for intramuscular vaccination.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Queen Saovabha Memorial Institute
Bangkok, 10330, Thailand
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Suda Sibunruang, MD
Queen Saovabha Memorial Institute
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- INVESTIGATOR
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Principal investigator
Study Record Dates
First Submitted
September 13, 2010
First Posted
September 16, 2010
Study Start
October 1, 2010
Primary Completion
April 1, 2018
Study Completion
April 1, 2018
Last Updated
April 6, 2018
Record last verified: 2018-04