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Testing for COVID-19 Infection in Asymptomatic Persons

Testing for COVID-19 Infection in Asymptomatic Persons

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04345510
Enrollment
500
Registered
2020-04-14
Start date
2020-04-20
Completion date
2021-09-30
Last updated
2022-03-29

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

Conditions

COVID-19 Infection

Brief summary

Intensive action has been taken around the globe to fight the corona virus SARS-COV-2 (COVID-19) pandemia. Clinical symptoms of the infection appear to be variable, from basically asymptomatic infections and mild, flu-like symptoms up to severe respiratory insufficiency, requiring mechanical ventilation at the intensive care unit, and death. Broad testing for COVID-19 infection has been proven difficult in clinical practice and hampered by limited resources. Urgently needed epidemiological data on the rate of silent, asymptomatic infections in the population and the percentage of individuals that have already developed immunity are still missing. Within this study we therefore plan to (i) determine the proportion of asymptomatic COVID-19 virus carriers in (a) German Cancer Research Center (DKFZ) employees, who work and are present at the center during the time of extended minimum operation and (b) in all DKFZ employees before onboarding when extended minimum operation has been terminated. We plan to (ii) develop a high-throughput assay for COVID-19 testing as well as (iii) a serum-based COVID-19 antibody assay. Finally, we will (iv) analyze for a possible correlation between oral microbiome and COVID-19 infection status.

Interventions

None listed

Sponsors

German Cancer Research Center
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

DKFZ employee

Exclusion criteria

Non DKFZ employee

Design outcomes

Primary

MeasureTime frame
COVID-19 infection6 weeks

Countries

Germany

Outcome results

None listed

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