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Clinical Trial Details — Status: Active, not recruiting

Administrative data

NCT number NCT05208983
Other study ID # 21-5090
Secondary ID
Status Active, not recruiting
Phase
First received
Last updated
Start date May 6, 2021
Est. completion date April 2024

Study information

Verified date January 2023
Source University Health Network, Toronto
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial 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).


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)


Recruitment information / eligibility

Status Active, not recruiting
Enrollment 1286
Est. completion date April 2024
Est. primary completion date March 2024
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 30 Years and older
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.

Study Design


Related Conditions & MeSH terms


Intervention

Biological:
mRNA Vaccines or Viral vector-based vaccines for COVID
Participants receiving an approved COVID vaccine

Locations

Country Name City State
Canada University Health Network Toronto Ontario

Sponsors (4)

Lead Sponsor Collaborator
University Health Network, Toronto Canadian Institutes of Health Research (CIHR), Public Health Agency of Canada (PHAC), Samuel Lunenfeld Research Institute, Mount Sinai Hospital

Country where clinical trial is conducted

Canada, 

Outcome

Type Measure Description Time frame Safety issue
Other Breakthrough COVID Infection number of persons who develop COVID post vaccination 48 Weeks after the final vaccine dose
Primary COviD-19 vaccine specific antibody levels The ratio-normalized levels of anti-spike and anti-RBD IgG antibodies 24 weeks after the final vaccination.
Secondary Antibody Levels at different timepoints 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 48 Weeks
Secondary Safety of COVID-19 Vaccines determine the proportion, types and severity of adverse events after the booster dose 48 weeks
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