Rapid Evaluation of Seasonal Influenza Vaccine
This is an invitation to consider taking part in a research study occurring just before the upcoming influenza vaccination program across Canada. The purpose of the study is to closely assess influenza vaccine safety and immune responses, as part of a nationwide, annual surveillance project sponsored by the Public Health Agency of Canada. Such scrutiny is important given the changing nature of flu vaccines from year to year.
|Study Design:||Allocation: Non-Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Prevention
|Official Title:||Post-marketing Surveillance of Annual Influenza Vaccines: Extended Vaccine Safety and Immunogenicity Evaluation|
- Assess the safety and immunogenicity of the licensed Influenza vaccine Fluviral 2009/10 measured at 7 and 21 days for safety and 21 days for immunogenicity [ Time Frame: 21 days ] [ Designated as safety issue: Yes ]
|Study Start Date:||August 2009|
|Estimated Study Completion Date:||November 2009|
|Estimated Primary Completion Date:||October 2009 (Final data collection date for primary outcome measure)|
Everyone gets licensed Influenza vaccine
Drug: Fluviral 2009/10
single dose given IM .05 mL
Trivalent inactivated vaccines (TIVs) are the principal tools for minimizing seasonal influenza morbidity and mortality in populations at increased risk of adverse outcomes. To keep pace with the evolution of circulating viruses the composition of TIVs is annually updated. Depending upon circumstances, the seasonal formulation may contain 1-3 new variant strains representing Canada's supply of H1N1, H3N2 and B 2009 vaccine. Standardized manufacturing processes favour consistent vaccine safety and immunogenicity profiles from year to year but unanticipated differences can and do occur. As a consequence of the unusual occurrence of "oculorespiratory syndrome" in recipients of a Canadian-made TIV for 2000-2001, the Canadian regulatory agency has required pre-approval clinical testing of seasonal vaccines in adults. This small scale testing (120 subjects) cannot exclude the occurrence of infrequent, troublesome adverse effects. Expanded testing is desirable and would best be done soon after vaccines are approved for distribution so that results could inform the public vaccination programs that follow. Having an established capacity for rapid evaluation of a new influenza vaccine will be invaluable in the event of a pandemic, when vaccines will be less thoroughly tested before being made available to protect the public.
The objectives of this study are two-fold:
- To assess the safety and immunogenicity of a seasonal TIV influenza vaccine quickly enough to inform subsequent public delivery programs.
- To use the opportunity to refine preparedness for rapid evaluation of a pandemic influenza vaccine.
|KFLA Public Health Department|
|Kingston, Ontario, Canada|
|Mt Sinai Hospital|
|Toronto, Ontario, Canada|
|CHUQ de recherché|
|Quebec City, Quebec, Canada|
|Principal Investigator:||David Scheifele, Dr.||University of British Columbia|