Influenza Clinical Trial
Official title:
Post-marketing Surveillance of Annual Influenza Vaccines: Extended Vaccine Safety and Immunogenicity Evaluation
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.
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:
1. To assess the safety and immunogenicity of a seasonal TIV influenza vaccine quickly
enough to inform subsequent public delivery programs.
2. To use the opportunity to refine preparedness for rapid evaluation of a pandemic
influenza vaccine.
;
Allocation: Non-Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Prevention
| Status | Clinical Trial | Phase | |
|---|---|---|---|
| Completed |
NCT05523089 -
The Effectiveness of CD388 to Prevent Flu in an Influenza Challenge Model in Healthy Adults
|
Phase 2 | |
| Completed |
NCT05009251 -
Using Explainable AI Risk Predictions to Nudge Influenza Vaccine Uptake
|
N/A | |
| Completed |
NCT03282240 -
Safety and Immunogenicity of High-Dose Quadrivalent Influenza Vaccine in Participants ≥65 Years in the US
|
Phase 3 | |
| Completed |
NCT00968526 -
Study to Evaluate Immunogenicity and Safety of an Investigational Influenza Vaccine (H1N1) in Adults
|
Phase 3 | |
| Completed |
NCT00971425 -
Evaluation of the Immune Response and the Safety of a Pandemic Influenza Candidate Vaccine (H1N1)
|
Phase 3 | |
| Completed |
NCT00968539 -
Study to Evaluate the Immunogenicity & Safety of an Investigational Influenza Vaccine (H1N1) in Adults
|
Phase 3 | |
| Completed |
NCT05525494 -
Patient Portal Flu Vaccine Reminders (5)
|
N/A | |
| Completed |
NCT04074928 -
Safety and Immunogenicity Study of QIVc in Healthy Pediatric Subjects
|
Phase 3 | |
| Completed |
NCT04695717 -
This Study Was Conducted to Evaluate the Safety and Immunogenicity of IVACFLU-S Produced in Children From 6 Months to Under 18 Years Old and the Elderly Over 60 Years Old in Vietnam
|
Phase 3 | |
| Completed |
NCT05012163 -
Lottery Incentive Nudges to Increase Influenza Vaccinations
|
N/A | |
| Completed |
NCT03888989 -
Response to Influenza Vaccine During Pregnancy
|
Phase 1 | |
| Completed |
NCT04109222 -
Collection of Serum Samples From Children and Older Adults Receiving the 2019-2020 Formulations of Fluzone® Quadrivalent and Fluzone® High-Dose Influenza Vaccines, Respectively
|
Phase 4 | |
| Completed |
NCT02587221 -
Clinical Study to Evaluate the Efficacy, Safety and Immunogenicity of an MF59-Adjuvanted Quadrivalent Influenza Vaccine Compared to Non-influenza Vaccine Comparator in Adults ≥ 65 Years of Age
|
Phase 3 | |
| Completed |
NCT03453801 -
The Role of CD4+ Memory Phenotype, Memory, and Effector T Cells in Vaccination and Infection
|
Phase 1 | |
| Completed |
NCT01440387 -
A Study of Immunogenicity and Safety of GSK Biologicals' Influenza Vaccine FLU-Q-QIV in Adults Aged 18 Years and Older
|
Phase 3 | |
| Terminated |
NCT01195779 -
Trial to Evaluate Safety and Immunogenicity of GSK Biologicals' Influenza Vaccine GSK2584786A in Healthy Children
|
Phase 2 | |
| Completed |
NCT03321968 -
Lot-to-lot Consistency of a Plant-Derived Quadrivalent Virus-Like Particles Influenza Vaccine in Healthy Adults
|
Phase 3 | |
| Completed |
NCT00972517 -
Study to Evaluate the Immunogenicity and Safety of an Investigational Influenza Vaccine (H1N1) in Children
|
Phase 3 | |
| Completed |
NCT04570904 -
Broadening Our Understanding of Early Versus Late Influenza Vaccine Effectiveness
|
||
| Recruiting |
NCT03331991 -
Prevention of Influenza and Other Wintertime Respiratory Viruses Among Healthcare Professionals in Israel
|
N/A |