SafeTy and Efficacy of Protective COVID-19 Vaccines
Networks
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Datasets
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Variables
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The primary objective of this study is to compare COVID-19 vaccine specific antibody levels at 24 weeks after final vaccine dose in persons 70 years and over relative to younger cohort (aged 30 – 50 years).
The secondary objectives are:
1. To compare COVID-19 vaccine specific antibody levels at baseline, 3 weeks after first vaccine dose, prior to second dose (if second dose delayed more than 28 days) and then at 2, 12, 36 and 48 weeks after the final vaccine dose between those more than 70 years of age and those 30-50 years of age.
2. To compare the safety of COVID-19 vaccines between those 70 years and over to those between 30-50 years of age.
The exploratory objectives are:
1. To determine the relationship between the presence and severity of systemic and local vaccine reactions at 24 hours after each vaccine dose and the ratio-normalized levels of anti-spike and anti-RBD IgG antibodies after each vaccine dose.
2. To determine the number and types of adverse vaccine reactions that persist to 6 months past the second vaccine dose.
3. To determine the number of persons who develop a new COVID infection up to 48 weeks following final vaccine dose.
- Start Year
- 2020
Visit StopCoV
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Design
- Study design
- Cohort
- Follow Up
- Participants are followed for 48 weeks after final vaccine dose for COVID-19 (at 7 days and 3 weeks post-1st vaccine dose, and 2 weeks, 12 weeks, 24 weeks post-2nd vaccine dose), then followed-up monthly. Participants also kept an eDiary for a 7-day period after each vaccine dose or booster throughout the study.
Recruitment
- Recruitment Target
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- Individuals
Number of Participants
- Number of Participants
- 1,300
- Number of Participants with Biological Samples
Access
Availability of data and biosamples
| Possible Access to Data | |
| Possible Access to Biosamples | |
| Other |
Timeline
Populations
The population is composed of individuals between the ages of 30 and 50 years old that will receive or have received a first or second dose of a COVID-19 vaccine at an Ontario vaccine distribution center.
Selection Criteria
- Minimum age
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30
- Maximum age
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50
- Newborns
- Twins
- Countries
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- Canada
- Territory
- Ethnic Origin
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- Health Status
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- Other Criteria
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Inclusion: Individuals who can speak, read and understand English (or have a trusted individual to help with study procedures).
Exclusion:- Individuals who are less than 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 enroll but do not receive any dose of the vaccine.
Recruitment
- Sources of recruitment
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- General population
- General Population
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- Volunteer enrolment
- Supplementary Information
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A random sample of emails of persons registering for vaccination at an Ontario center who provide their email and consent to be contacted for research in the target population age groups will be forwarded by the Ministry of Ontario to the study site. The study site in turn will forward the email blast electronically to the participants on the list directing them to the STOPCoV study website. Pamphlets and posters describing the study and providing the website and contact information will be made available at Toronto vaccine distribution centers, primary care offices, pharmacies and community organizations supporting vaccine uptake.
Number of Participants
- Number of Participants
- 400
- Number of Participants with Biological Samples
Data Collection Events
| # | Name | Description | Start | End |
|---|---|---|---|---|
| 0 |
StopCoV - 30-50 year olds - Baseline
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Information was collected electronically about demographics- age, gender, 3-digit postal code, comorbidity (to include previous COVID-19 infection and testing, diabetes, hypertension, ... | 2020 | |
| 1 |
StopCoV - 30-50 year olds - eDiary
|
Information was collected through an electronic diary to record the date of their vaccination (or any changes) and any booster and to respond to questions about potential adverse events including ... | 2020 | |
| 2 |
StopCoV - 30-50 year olds - 7 days post 1st vaccine dose
|
Dried Blood Spot (DBS) specimens were collected within 7 days of initial vaccine dose (or as soon after the initial vaccine dose as possible and not longer than 7 days). | 2021-03 | |
| 3 |
StopCoV - 30-50 year olds - 3 weeks post 1st vaccine dose
|
Dried Blood Spot (DBS) specimens were collected . | 2021-03 | |
| 4 |
StopCoV - 30-50 year olds - Pre-2nd vaccine dose
|
Dried Blood Spot (DBS) specimens were collected. This is collected only if the interval between the two doses is prolonged beyond 28 days. | 2021-03 | |
| 5 |
StopCoV - 30-50 year olds - 2 weeks post 2nd vaccine dose
|
Dried Blood Spot (DBS) specimens were collected . | 2021-04 | |
| 6 |
StopCoV - 30-50 year olds - 12 weeks post 2nd vaccine dose
|
Dried Blood Spot (DBS) specimens were collected. | 2021-07 | |
| 7 |
StopCoV - 30-50 year olds - 24 weeks post 2nd vaccine dose
|
Dried Blood Spot (DBS) specimens were collected. | 2021-10 | |
| 8 |
StopCoV - 30-50 year olds - 36 weeks post 2nd vaccine dose
|
Dried Blood Spot (DBS) specimens were collected. | 2022-01 | |
| 9 |
StopCoV - 30-50 year olds - 48 weeks post 2nd vaccine dose
|
Dried Blood Spot (DBS) specimens were collected. | 2022-04 | |
| 10 |
StopCoV - 30-50 year olds - Follow-up 1
|
Information was collected on long term vaccine adverse events and breakthrough COVID infection. | 2021-04 | 2021-04 |
| 11 |
StopCoV - 30-50 year olds - Follow-up 2
|
Information was collected on long term vaccine adverse events and breakthrough COVID infection. | 2021-05 | 2021-05 |
| 12 |
StopCoV - 30-50 year olds - Follow-up 3
|
Information was collected on long term vaccine adverse events and breakthrough COVID infection. | 2021-06 | 2021-06 |
| 13 |
StopCoV - 30-50 year olds - Follow-up 4
|
Information was collected on long term vaccine adverse events and breakthrough COVID infection. | 2021-07 | 2021-07 |
| 14 |
StopCoV - 30-50 year olds - Follow-up 5
|
Information was collected on long term vaccine adverse events and breakthrough COVID infection. | 2021-08 | 2021-08 |
| 15 |
StopCoV - 30-50 year olds - Follow-up 6
|
Information was collected on long term vaccine adverse events and breakthrough COVID infection. | 2021-09 | 2021-09 |
| 16 |
StopCoV - 30-50 year olds - Follow-up 7
|
Information was collected on long term vaccine adverse events and breakthrough COVID infection. | 2021-10 | 2021-10 |
| 17 |
StopCoV - 30-50 year olds - Follow-up 8
|
Information was collected on long term vaccine adverse events and breakthrough COVID infection. | 2021-11 | 2021-11 |
| 18 |
StopCoV - 30-50 year olds - Follow-up 9
|
Information was collected on long term vaccine adverse events and breakthrough COVID infection. | 2021-12 | 2021-12 |
| 19 |
StopCoV - 30-50 year olds - Follow-up 10
|
Information was collected on long term vaccine adverse events and breakthrough COVID infection. | 2022-01 | 2022-01 |
| 20 |
StopCoV - 30-50 year olds - Follow-up 11
|
Information was collected on long term vaccine adverse events and breakthrough COVID infection. | 2022-02 | 2022-02 |
| 21 |
StopCoV - 30-50 year olds - Follow-up 12
|
Information was collected on long term vaccine adverse events and breakthrough COVID infection. | 2022-03 | 2022-03 |
| 22 |
StopCoV - 30-50 year olds - Follow-up 13
|
Information was collected on long term vaccine adverse events and breakthrough COVID infection. | 2022-04 | 2022-04 |
The population is composed of individuals that are 70 years and older that will receive or have received a first or second dose of a COVID-19 vaccine at an Ontario vaccine distribution center.
Selection Criteria
- Minimum age
-
70
- Newborns
- Twins
- Countries
-
- Canada
- Territory
- Ethnic Origin
-
- Health Status
-
- Other Criteria
-
Inclusion: Individuals who can speak, read and understand English (or have a trusted individual to help with study procedures).
Exclusion:- Individuals who are less than < 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 will be excluded if they who enrol but do not receive any dose of the vaccine.
Recruitment
- Sources of recruitment
-
- General population
- General Population
-
- Volunteer enrolment
- Supplementary Information
-
A random sample of emails of persons registering for vaccination at an Ontario center who provide their email and consent to be contacted for research in the target population age groups will be forwarded by the Ministry of Ontario to the study site. The study site in turn will forward the email blast electronically to the participants on the list directing them to the STOPCoV study website. Participants were also recruited through three email blasts that were done through ZOOMER media to CARP- Canadian association of retired persons. Pamphlets and posters describing the study and providing the website and contact information will be made available at Toronto vaccine distribution centers, primary care offices, pharmacies and community organizations supporting vaccine uptake.
Number of Participants
- Number of Participants
- 900
- Number of Participants with Biological Samples
Data Collection Events
| # | Name | Description | Start | End |
|---|---|---|---|---|
| 0 |
StopCoV - 70 years and older - Baseline
|
Information was collected electronically about demographics- age, gender, 3-digit postal code, comorbidity (to include previous COVID-19 infection and testing, diabetes, hypertension, ... | 2020 | |
| 1 |
StopCoV - 70 years and older - eDiary
|
Information was collected through an electronic diary to record the date of their vaccination (or any changes) and any booster and to respond to questions about potential adverse events including ... | 2020 | |
| 2 |
StopCoV - 70 years and older - 7 days post 1st vaccine dose
|
Dried Blood Spot (DBS) specimens were collected within 7 days of initial vaccine dose (or as soon after the initial vaccine dose as possible and not longer than 7 days). | 2021-03 | |
| 3 |
StopCoV - 70 years and older - 3 weeks post 1st vaccine dose
|
Dried Blood Spot (DBS) specimens were collected. | 2021-03 | |
| 4 |
StopCoV - 70 years and older - Pre-2nd vaccine dose
|
Dried Blood Spot (DBS) specimens were collected. This is collected only if the interval between the two doses is prolonged beyond 28 days. | 2021-05 | |
| 5 |
StopCoV - 70 years and older - 2 weeks post 2nd vaccine dose
|
Dried Blood Spot (DBS) specimens were collected. | 2021-04 | |
| 6 |
StopCoV - 70 years and older - 12 weeks post 2nd vaccine dose
|
Dried Blood Spot (DBS) specimens were collected. | 2021-07 | |
| 7 |
StopCoV - 70 years and older - 24 weeks post 2nd vaccine dose
|
Dried Blood Spot (DBS) specimens were collected. | 2021-10 | |
| 8 |
StopCoV - 70 years and older - 36 weeks post 2nd vaccine dose
|
Dried Blood Spot (DBS) specimens were collected. | 2022-01 | |
| 9 |
StopCoV - 70 years and older - 48 weeks post 2nd vaccine dose
|
Dried Blood Spot (DBS) specimens were collected. | 2022-04 | |
| 10 |
StopCoV - 70 years and older - Follow-up 1
|
Information was collected on long term vaccine adverse events and breakthrough COVID infection. | 2021-04 | 2021-04 |
| 11 |
StopCoV - 70 years and older - Follow-up 2
|
Information was collected on long term vaccine adverse events and breakthrough COVID infection. | 2021-05 | 2021-05 |
| 12 |
StopCoV - 70 years and older - Follow-up 3
|
Information was collected on long term vaccine adverse events and breakthrough COVID infection. | 2021-06 | 2021-06 |
| 13 |
StopCoV - 70 years and older - Follow-up 4
|
Information was collected on long term vaccine adverse events and breakthrough COVID infection. | 2021-07 | 2021-07 |
| 14 |
StopCoV - 70 years and older - Follow-up 5
|
Information was collected on long term vaccine adverse events and breakthrough COVID infection. | 2021-08 | 2021-08 |
| 15 |
StopCoV - 70 years and older - Follow-up 6
|
Information was collected on long term vaccine adverse events and breakthrough COVID infection. | 2021-09 | 2021-09 |
| 16 |
StopCoV - 70 years and older - Follow-up 7
|
Information was collected on long term vaccine adverse events and breakthrough COVID infection. | 2021-10 | 2021-10 |
| 17 |
StopCoV - 70 years and older - Follow-up 8
|
Information was collected on long term vaccine adverse events and breakthrough COVID infection. | 2021-11 | 2021-11 |
| 18 |
StopCoV - 70 years and older - Follow-up 9
|
Information was collected on long term vaccine adverse events and breakthrough COVID infection. | 2021-12 | 2021-12 |
| 19 |
StopCoV - 70 years and older - Follow-up 10
|
Information was collected on long term vaccine adverse events and breakthrough COVID infection. | 2022-01 | 2022-01 |
| 20 |
StopCoV - 70 years and older - Follow-up 11
|
Information was collected on long term vaccine adverse events and breakthrough COVID infection. | 2022-02 | 2022-02 |
| 21 |
StopCoV - 70 years and older - Follow-up 12
|
Information was collected on long term vaccine adverse events and breakthrough COVID infection. | 2022-03 | 2022-03 |
| 22 |
StopCoV - 70 years and older - Follow-up 13
|
Information was collected on long term vaccine adverse events and breakthrough COVID infection. | 2022-04 | 2022-04 |
Classifications
- Socio-demographic and economic characteristics
- Lifestyle and behaviours
- Birth, pregnancy and reproductive health history
- Perception of health, quality of life, development and functional limitations
- Diseases
- Symptoms and signs
- Medication and supplements
- Non-pharmacological interventions
- Health and community care services utilization
- Death
- Physical measures and assessments
- Laboratory measures
- Cognition, personality and psychological measures and assessments
- Life events, life plans, beliefs and values
- Preschool, school and work life
- Social environment and relationships
- Physical environment
- Administrative information
Socio-demographic and economic characteristics
Age/birthdate
Sex/gender
Education
Ethnicity, race and religion
Lifestyle and behaviours
Tobacco
Diseases
Certain infectious and parasitic diseases (A00-B99)
Neoplasms (C00-D48)
Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89)
Endocrine, nutritional and metabolic diseases (E00-E90)
Diseases of the nervous system (G00-G99)
Diseases of the circulatory system (I00-I99)
Diseases of the respiratory system (J00-J99)
Diseases of the digestive system (K00-K93)
Diseases of the genitourinary system (N00-N99)
Injury, poisoning and certain other consequences of external causes (S00-T98)
Diseases without precise specification or falling into multiple categories
Symptoms and signs
Symptoms and signs involving the digestive system and abdomen (R10-R19)
Symptoms and signs involving the skin and subcutaneous tissue (R20-R23)
Symptoms and signs involving nervous and musculoskeletal systems (R25-R29)
General symptoms and signs (R50-R69)
Symptoms related to multiple categories
Medication and supplements
Medication and supplement intake
Posology and protocol of administration
Non-pharmacological interventions
Surgical interventions
Laboratory diagnosis interventions
Other and unspecified non-pharmacological interventions
Health and community care services utilization
Hospitalizations
Physical measures and assessments
Anthropometry
Other physical measures and assessments
Administrative information
Identifiers
Date and time-related information
Questionnaire and interview-related information
Physical and cognitive measure and biosample-related information
Other administrative information