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Monitoring of COVID-19 Seroprevalence Among GHdC Staff Members

Monitoring of COVID-19 Seroprevalence Among GHdC Staff Members: Protocol for an Interventional Cohort Study in 2020-2021

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04813497
Enrollment
4000
Registered
2021-03-24
Start date
2021-02-05
Completion date
2022-04-30
Last updated
2022-06-01

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

Conditions

Covid19

Brief summary

Grand Hôpital de Charleroi (GHdC) had to organize the vaccination of its staff in December 2021 against SARS-CoV-2.On the sidelines of this vaccination campaign, the management committee agreed to document the knowledge of the SARS-CoV-2 serology of all the staff of the establishment before this vaccination campaign, as well as a few weeks after vaccination. In November 2021, the Belgian government decided to offer a third dose of vaccine against SARS-CoV-2 virus. The GHdC managment committee has agreed to continue monitoring SARS-CoV-2 serology for members who receive their third dose of vaccine.

Detailed description

Grand Hôpital de Charleroi (GHdC) staff were exposed to the risk of SARS-CoV-2 infection during the first half of 2020: a seroprevalence survey, conducted in the summer of 2020, after the first wave of the epidemic, and before the second wave, thus revealed a significant seroprevalence because of its exposure. This study, because of its high participation rate, also showed the sustained interest of the agents in knowing their serology, either for personal reasons, or for the purposes of recognition as an occupational disease. The GHdC decided in December 2020 to organize as soon as possible the vaccination of its salaried and self-employed employees who wish to take advantage of this opportunity. On the sidelines of this vaccination campaign, the management committee agreed to document the knowledge of the SARS-Cov-2 serology of all the staff of the establishment before this vaccination campaign, as well as a few weeks after vaccination. This knowledge must better organize the disease prevention strategy, both with regard to the staff themselves and the patients for whom they are called upon to treat. When the Belgian government decided in November 2021 to offer a third dose of vaccine and start it up in hospitals, the GHdC managment committee has agreed to continue monitoring SARS-CoV-2 serology for members who agree to receive their third dose of vaccine.

Interventions

DIAGNOSTIC_TESTSerology to determine SARS-CoV-2 infection

Each participant accept to have two blood tests on a dry tube of maximum 8 ml of whole blood

Sponsors

Grand Hôpital de Charleroi
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Intervention model description

Group 1 : participants who did not agree to receive a SARS-CoV-2 vaccine in the first Belgian campaing but who agreed to perform a serological test against COVID-19. Groups of participants who agree to receive a SARS-CoV-2 vaccine at different specific times determined by the Belgian State for workers at the Grand Hôpital de Charleroi. Parallel study of immunity to SARS-CoV-2 among staff members.

Eligibility

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

Inclusion criteria

* To be an employee or independent collaborator at the GHdC

Exclusion criteria

* Refusal to take a blood test for anti-SARS-CoV-2 antibodies Regarding amendment 1: * Members who did not receive the third dose of PFIZER vaccine (Comirnaty) during the GHdC vaccination campaign and who did not performed a blood test to measure anti-SARS-CoV-2 antibodies.

Design outcomes

Primary

MeasureTime frameDescription
Serological tests to know the level of antibodies against SARS CoV-2up to 14 weeks after the second dose of SARS-CoV-2 vaccine or after the first serological testParticipants accept to undergo 2 serological tests to determine their immunity to the SARS-CoV-2 virus.

Countries

Belgium

Outcome results

None listed

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