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SafeTy and Efficacy of Preventative CoVID Vaccines

SafeTy and Efficacy of Preventative CoVID Vaccines

Status
UNKNOWN
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT05208983
Acronym
STOPCoV
Enrollment
1286
Registered
2022-01-26
Start date
2021-05-06
Completion date
2024-04-30
Last updated
2023-01-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

COVID-19 Virus Infection, Vaccine Response

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

BIOLOGICALmRNA Vaccines or Viral vector-based vaccines for COVID

Participants receiving an approved COVID vaccine

Sponsors

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

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
30 Years to No maximum
Healthy volunteers
Yes

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

MeasureTime frameDescription
COviD-19 vaccine specific antibody levels24 weeks after the final vaccination.The ratio-normalized levels of anti-spike and anti-RBD IgG antibodies

Secondary

MeasureTime frameDescription
Antibody Levels at different timepoints48 Weeksbaseline, 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 Vaccines48 weeksdetermine the proportion, types and severity of adverse events after the booster dose

Other

MeasureTime frameDescription
Breakthrough COVID Infection48 Weeks after the final vaccine dosenumber of persons who develop COVID post vaccination

Countries

Canada

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026