Health Care Workers Cohort Study in the EuCARE Project (EuCARE-HCW)
- Conditions
- COVID-19
- Interventions
- Other: Follow up of the first known immunization event
- Registration Number
- NCT05534009
- Lead Sponsor
- Euresist Network GEIE
- Brief Summary
The WP3 healthcare workers cohort in EuCARE is an observational multicentre study including collection of retrospective (historical) and prospective data and sample collection from health care workers with either a vaccination or a confirmed SARS-CoV-2 infection. Samples from HCW are sent to central laboratories for WP2 study were the impact of different variants in humoral and cellular immunity is to be analysed by biostatistical methods and with artificial intelligence in WP5. This analysis will focus on the impact on vaccine escape of viral variants / viral sequences as well as on any escape from any combination of natural and vaccine induced immunity. Eight countries will participate (Portugal, Italy, Germany, Lithuania, Georgia, Russia, Vietnam and Mexico).
- Detailed Description
Background: Protection from SARS-CoV-2 infection is known to occur soon after vaccination or natural disease, fading over time. Although protection from serious illness does occur, protection from infection is insufficient and the impact of each variant and of each vaccine or vaccine schedule is a matter of continuous study. Recruiting participants from countries with different vaccines and vaccine schedules is of upmost importance to analyse these relationships and breakthrough infections. Study objectives: The EuCARE-HCW study contributes with data and samples from
HCW to EuCARE-IMMUNITY study that will analyse the NtAb and CMI to different SARS- CoV-2 variants following any combination of natural infection and vaccination. Specific
objectives include:
* to collect data and biological material from COVID-19 healthcare workers in 9 clinics from 8 countries and 3 continents.
* Enrolment of HCW with an immunogenic event, either vaccination or infection.
* Periodic collection of serum and whole blood every 4 months since enrolment and during 12-24 months (depending on how long immunity persists).
* Sample preparation, storage and shipment to central EuCARE laboratories where WP2 study group will analyse natural and artificial immunity to SARS-CoV-2 variants (EuCARE-IMMUNITY), namely:
* Analyse the magnitude, breadth and duration of immunity following natural infection and/or vaccination.
* Define the cross-immunity among the different viral variants.
* Analyse the immune escape in a comprehensive set of combinations of vaccines and natural infection(s).
* To accomplish the above objectives, WP2 will test:
* Neutralising antibodies
* Cellular immunity
* Viral sequences
Recruitment & Eligibility
- Status
- RECRUITING
- Sex
- All
- Target Recruitment
- 1800
The study subjects will be selected based on the following inclusion criteria:
- Adult (>18 years) HCW with mandatory information on their SARS-CoV-2 infection and vaccination status.
- For those with a history of SARS-CoV-2 infection, diagnosis obtained by detection of SARS-CoV-2 RNA
- Having a signed informed consent when required by ethical approval
NONE
Study & Design
- Study Type
- OBSERVATIONAL
- Study Design
- Not specified
- Arm && Interventions
Group Intervention Description Heath care workers (HCW) Follow up of the first known immunization event Adult (\>18 years) HCW with mandatory information on their SARS-CoV-2 infection and vaccination status. For those with a history of SARS-CoV-2 infection, diagnosis obtained by detection of SARS-CoV-2 RNA
- Primary Outcome Measures
Name Time Method Number of HCW involved in the study through study completion, an average of 3 years To collect the higher possible number of data and biological materials from the HCWs of the participating Units
- Secondary Outcome Measures
Name Time Method
Trial Locations
- Locations (7)
Viesoji Istaiga Vilniaus Uiversiteto Ligoninė Santaros klinikos
🇱🇹Vilnius, Lithuania
Centro Hospitalar de Lisboa Ocidental
🇵🇹Lisbon, Portugal
Bach Mai Hospital
🇻🇳Hanoi, Vietnam
Ieo Istituto Europeo Di Oncologia
🇮🇹Milan, Italy
Heinrich Heine university
🇩🇪Düsseldorf, Germany
Azienda Socio-Sanitaria Territoriale Santi Paolo e Carlo
🇮🇹Milan, Italy
Hospital Juan Ghaham Casasus
🇲🇽Villahermosa, Mexico