Comparison of the Immune Response to Natural COVID-19 Infection and Vaccination
COVID19vac-1
1 other identifier
observational
2,500
1 country
1
Brief Summary
The ongoing Coronavirus Disease 2019 (COVID-19) pandemic has been intensified by no population-based immunity to the severe acute respiratory disease coronavirus 2 (SARS-CoV2) and initially lack of effective treatments or vaccines available to mitigate the pandemic. Currently, two COVID-19 vaccines are available for vaccination in Europe through conditional marketing authorisation granted by the European Medicines Agency and further vaccine will be licensed. These vaccines have shown good vaccine efficacy in phase 3 vaccine trials. We will recruit subjects who will be prioritised for vaccination with the primary aim of comparing the immune responses after COVID-19 vaccination and natural SARS-CoV-2 infection. In Western Norway we have recruited cohorts of health care workers and patients infected with SARS-CoV-2 and will extend to COVID-19 vaccinees. Demographic, clinical data and repeated blood samples will be collected to evaluate the complications and kinetics, duration and breadth of the immune responses comparing natural infection to vaccination.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Jan 2021
Longer than P75 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
January 11, 2021
CompletedFirst Posted
Study publicly available on registry
January 12, 2021
CompletedStudy Start
First participant enrolled
January 12, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 12, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
December 12, 2030
ExpectedApril 19, 2024
April 1, 2024
3.9 years
January 11, 2021
April 18, 2024
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
immune responses
spike antibody response to SARS-CoV-2
2 months to 3 years
Secondary Outcomes (2)
Duration and breadth of B- cell responses
2 months to 3 years
Duration and breadth of T cell responses
2 months to 3 years
Study Arms (2)
Health care workers
500-1000 health care workers prioritized for early vaccination
prioritized patient populations
2000 individuals in patient populations prioritized for vaccinations
Interventions
Eligibility Criteria
Comparator group: patients with natural SARS-CoV-2 infection Vaccine groups: Health care workers and high-risk population groups.
You may qualify if:
- subjects prioritized by national vaccination program
You may not qualify if:
- Children
- unable or unwilling to provide informed consent
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- University of Bergenlead
- Haukeland University Hospitalcollaborator
Study Sites (1)
University of Bergen
Bergen, 5020, Norway
Related Publications (4)
Cox RJ, Brokstad KA, Krammer F, Langeland N; Bergen COVID-19 Research Group. Seroconversion in household members of COVID-19 outpatients. Lancet Infect Dis. 2021 Feb;21(2):168. doi: 10.1016/S1473-3099(20)30466-7. Epub 2020 Jun 15. No abstract available.
PMID: 32553187BACKGROUNDTrieu MC, Bansal A, Madsen A, Zhou F, Saevik M, Vahokoski J, Brokstad KA, Krammer F, Tondel C, Mohn KGI, Blomberg B, Langeland N, Cox RJ; Bergen COVID-19 Research Group. SARS-CoV-2-Specific Neutralizing Antibody Responses in Norwegian Health Care Workers After the First Wave of COVID-19 Pandemic: A Prospective Cohort Study. J Infect Dis. 2021 Feb 24;223(4):589-599. doi: 10.1093/infdis/jiaa737.
PMID: 33247924BACKGROUNDBredholt G, Saevik M, Soyland H, Ueland T, Zhou F, Pathirana R, Madsen A, Vahokoski J, Lartey S, Halvorsen BE, Dahl TB, Trieu MC, Mohn KG, Brokstad KA, Aukrust P, Tondel C, Langeland N, Blomberg B, Cox RJ; Bergen COVID-19 Research Group. Three doses of Sars-CoV-2 mRNA vaccine in older adults result in similar antibody responses but reduced cellular cytokine responses relative to younger adults. Vaccine X. 2024 Sep 25;20:100564. doi: 10.1016/j.jvacx.2024.100564. eCollection 2024 Oct.
PMID: 39403561DERIVEDHansen L, Brokstad KA, Bansal A, Zhou F, Bredholt G, Onyango TB, Sandnes HH, Elyanow R, Madsen A, Trieu MC, Saevik M, Soyland H, Olofsson JS, Vahokoski J, Ertesvag NU, Fjelltveit EB, Shafiani S, Tondel C, Chapman H, Kaplan I, Mohn KGI, Langeland N, Cox RJ. Durable immune responses after BNT162b2 vaccination in home-dwelling old adults. Vaccine X. 2023 Apr;13:100262. doi: 10.1016/j.jvacx.2023.100262. Epub 2023 Jan 10.
PMID: 36643855DERIVED
Biospecimen
Blood collection including cells.
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Rebecca J Cox, PhD
University of Bergen
Central Study Contacts
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor
Study Record Dates
First Submitted
January 11, 2021
First Posted
January 12, 2021
Study Start
January 12, 2021
Primary Completion
December 12, 2024
Study Completion (Estimated)
December 12, 2030
Last Updated
April 19, 2024
Record last verified: 2024-04