Completed

Diagnostic Accuracy of Rapid Antigen Test Based on Anterior Nasal Swab Compared With RT-PCR for SARS-CoV-2 Detection.

What is being collected

Data Collection

Collected from today forward - Prospective

Who is being recruted

COVID-19+9

+ Coronaviridae Infections

+ Infections

Over 18 Years

+2 Eligibility Criteria

See all eligibility criteria

How is the trial designed

Ecologic or Community

Assessing exposures and health outcomes at the community level in order to identify population-wide health trends.

Observational

Study Start: March 2021

See protocol details

Summary

Principal SponsorChristian von Buchwald

Last updated: January 28, 2026

Sourced from a government-validated database.Claim as a partner

Study start date: March 1, 2021

Actual date on which the first participant was enrolled.

The aim of this study was to determine the accuracy of anterior nasal swab in rapid antigen (Ag)-tests in a low SARS-CoV-2 prevalence and massive screened community.

Official TitleDiagnostic Accuracy of Rapid Antigen Test Based on Anterior Nasal Swab Compared With RT-PCR for SARS-CoV-2 Detection.

NCT05045846

Principal SponsorChristian von Buchwald

Last updated: January 28, 2026

Sourced from a government-validated database.Claim as a partner

Protocol

This section provides details of the study plan, including how the study is designed and what the study is measuring.

Design Details

3461 patients to be enrolled

Total number of participants that the clinical trial aims to recruit.

Ecologic or Community

These studies look at groups or populations rather than individuals. They explore community-wide exposures and health outcomes to understand public health trends and risks at a broader scale.

Eligibility

Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.

Conditions

Criteria

Any sex

Biological sex of participants that are eligible to enroll.

Over 18 Years

Range of ages for which participants are eligible to join.

Conditions

Pathology

COVID-19Coronaviridae InfectionsInfectionsLung DiseasesPneumoniaPneumonia, ViralRespiratory Tract DiseasesRespiratory Tract InfectionsRNA Virus InfectionsVirus DiseasesCoronavirus InfectionsNidovirales Infections

Criteria

1 inclusion criteria required to participate

Citizens, above 18 years of age, who had self-booked an appointment for COVID-19 test at Testcenter Taastrup, Copenhagen, Denmark, in the period of 2nd of March to 22nd of March were offered to participate in the project

1 exclusion criteria prevent from participating

Patients referred to COVID-19 testing by a doctor with symptoms of COVID-19 were tested in a separate section of the test centers and are not included in this study

Study Plan

Find out more about all the medication administered in this study, their detailed description and what they involve.

Study Objectives

Primary Objectives

Study Centers

These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.

This study has 1 location

Suspended

Christian von Buchwald, MD, DMSc, Professor

Copenhagen, DenmarkOpen Christian von Buchwald, MD, DMSc, Professor in Google Maps

CompletedOne Study Center