COVID-19 Virus Infection, Vaccine Response
Conditions
Brief summary
The STOPCoV study is a decentralized study comparing COVID-19 vaccine specific antibody levels at 24 weeks after final vaccine dose. We plan to study the safety and immunogenicity of COVID-19 vaccine(s) in community dwelling persons 70 years and over relative to a younger group (aged 30 - 50 years).
Detailed description
This is a prospective observational study of a cohort of individuals aged 30-50 years and a cohort of individuals aged 70 years and over receiving the COVID-19 vaccine. Participants will complete a questionnaire to determine eligibility. Eligible participants will complete and sign an e-consent and then be provided with a participant ID, log in information and password to the database portal, and then be enrolled into the study. Participants will complete the study assessments (baseline questionnaire, post vaccine symptom e-diary monthly, check-in questionnaire and dried blood spot specimens)
Interventions
Participants receiving an approved COVID vaccine
Sponsors
Study design
Eligibility
Inclusion criteria
* Must be a resident of Ontario Arm A: * Individuals aged 70 and over * Speak, read and understand English (or have a trusted individual to help with study procedures) * Will receive a first or second dose of a COVID-19 vaccine at an Ontario vaccine distribution center. Individuals reaching the minimum age requirement by end of the recruitment calendar year are allowed to participate. Arm B: * Individuals between age 30-50 years * Speak, read and understand English (or have a trusted individual to help with study procedures) * Receive a first or second dose of a COVID-19 vaccine at an Ontario vaccine distribution center.
Exclusion criteria
* Not a resident of Ontario * Individuals who are \< 30 years or those 51-69 years. * Those who are unable to complete the study protocols in English either alone or with the assistance of a trusted individual with an electronic device. * Participants who do not receive any dose of the vaccine * Participants who have already received both doses of the vaccine prior to enrolment.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| COviD-19 vaccine specific antibody levels | 24 weeks after the final vaccination. | The ratio-normalized levels of anti-spike and anti-RBD IgG antibodies |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Antibody Levels at different timepoints | 48 Weeks | baseline, 3 weeks after first vaccine dose, prior to second dose and then at 2, 12, 36 and 48 weeks after the final vaccine dose |
| Safety of COVID-19 Vaccines | 48 weeks | determine the proportion, types and severity of adverse events after the booster dose |
Other
| Measure | Time frame | Description |
|---|---|---|
| Breakthrough COVID Infection | 48 Weeks after the final vaccine dose | number of persons who develop COVID post vaccination |
Countries
Canada