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Seroconversion Among Staff at a Large Acute Care Hospital in Denmark During the COVID-19 Pandemic

Seroconversion Among Staff at a Large Acute Care Hospital in Denmark During the COVID-19 Pandemic

Status
UNKNOWN
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04431310
Enrollment
300
Registered
2020-06-16
Start date
2020-03-27
Completion date
2025-08-01
Last updated
2020-06-16

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

Conditions

Covid-19, Health Personnel, Personnel, Hospital

Keywords

healthcare workers, health care workers, hcw, seroconversion

Brief summary

The aim of this study is to apply serology testing methods for SARS-CoV2 antibodies in samples collected from HCWs in an acute hospital. This will enable the identification of those who are protected and non-infectious for SARS-CoV2 and those who are seronegative and therefore potentially susceptible and infectious on patient contact. Prospective testing will provide data on the acquisition of SARS-CoV2 infections among HCWs and associated risk factors for transmission during a pandemic at an acute care hospital facility in the capital region of Denmark. Hypothesis: Serial seroconversion measurements in hospital employees improve the organization of the clinical treatment and care during the COVID-19 pandemic at Nordsjællands Hospital and Nykøbing Falster County Hospital.

Detailed description

The study is a prospective cohort study. Weekly (in the first phase) and bi-weekly (in the second phase) serum samples will be drawn and shipped bi-weekly to laboratory collaborators in United Kingdom for antibody analyses during the course of the local epidemic, expected to last 10-12 weeks or more. After the cease of the epidemic serum will be drawn in 3-monthly intervals in a smaller group of seroconverted volunteers to follow the long-lasting immunity of SARS-CoV-2 infection up to 5 years post-pandemic. Nurses, medical doctors, biomedical laboratory scientists, social health care assistants, and few healthcare administrators (as controls) will be invited for enrolment. In hospitals, all departments with staff that are in physical contact with patients during the pandemic will be invited to participate in the study.

Interventions

OTHERSerial seroconversion measurements in hospital employees during the COVID-19 pandemic

The aim of this study is to apply serology testing methods for SARS-CoV2 antibodies in samples collected from HCWs in an acute hospital.

Sponsors

University of Oxford
CollaboratorOTHER
Nykøbing Falster County Hospital
CollaboratorOTHER
Nordsjaellands Hospital
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

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

Inclusion criteria

hospital employee \-

Exclusion criteria

none

Design outcomes

Primary

MeasureTime frameDescription
Serology testing for specific COVID-19From baseline to follow up at four yearsIgM and IgG (Covid-19 antibodies)

Secondary

MeasureTime frameDescription
SARS-CoV-2 infectionFrom baseline to follow up at three monthsSwab, SARS-CoV-2

Other

MeasureTime frameDescription
Co-variatesAt baselineAge, gender, employment details, smoking, chronic diseases

Countries

Denmark

Contacts

Primary ContactFischer
thea.koelsen.fischer@regionh.dk+45 2440 1718

Outcome results

None listed

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