Unknown OBSERVATIONAL NCT04431310

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

Sponsor: Nordsjaellands Hospital

Conditions Covid-19 Health Personnel Personnel, Hospital

Interventions Serial seroconversion measurements in hospital employees during the COVID-19 pandemic

Updated 7 times since 2020 Last updated: Jun 12, 2020 Started: Mar 27, 2020 Primary completion: Aug 1, 2025 Completion: Aug 1, 2025

This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

A observational or N/A phase clinical study on Covid-19 and Health Personnel, this trial is ongoing. The trial is conducted by Nordsjaellands Hospital and has accumulated 7 data snapshots since 2020. Infectious disease trials contribute critical data for public health response and treatment development.

Status Flow

Change History

7 versions recorded

Sep 2025 — Present [monthly]

Unknown

Status: Recruiting → Unknown
Sep 2024 — Sep 2025 [monthly]

Recruiting
Jul 2024 — Sep 2024 [monthly]

Recruiting
Dec 2021 — Jul 2024 [monthly]

Recruiting
Jan 2021 — Dec 2021 [monthly]

Recruiting

▶ Show 2 earlier versions

Nov 2020 — Jan 2021 [monthly]

Recruiting
Jul 2020 — Nov 2020 [monthly]

Recruiting

First recorded

Mar 2020

Trial started

Per CT.gov start date — pre-dates our first snapshot

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:

Nordsjaellands Hospital
Nykøbing Falster County Hospital
University of Oxford

Data source: Nordsjaellands Hospital

For direct contact, visit the study record on ClinicalTrials.gov .

Study Locations

• Hillerød, Denmark
• Nykøbing Falster, Denmark