Clinical trial NCT04953091: Evaluation of the Sofia SARS Antigen FIA Assay for COVID-19
Official title: Evaluation du Test " Sofia SARS Antigen FIA Assay " Dans le Cadre du dépistage de la COVID-19
Study type: OBSERVATIONAL
Overall status: UNKNOWN
Conditions: SARS-CoV2 Infection
Keywords: SARS-CoV2 Infection
Assessment
EIA
Diagnosis
Lead sponsor: University Hospital, Brest
Sponsor class: OTHER
First posted: 2021-07-07
Enrollment: 300
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Observational model: COHORT
Time perspective: PROSPECTIVE
Sampling method: NON_PROBABILITY_SAMPLE
Study population: Two nasopharyngeal swabs will be taken per included patient. One will be analyzed by RT-PCR in the virology laboratory, the other will be analyzed on site with the Sofia SARS Antigen FIA test. The results of the two tests will then be compared.

These samples will not be collected for further research.

Brief summary: Evaluating the performance of the Sofia SARS Antigen FIA

Detailed description: RT-PCR is the reference technique for the diagnosis of COVID-19, as recommended by WHO, ECDC and the HAS College.

Serological tests to identify antibodies developed by the immune system following infection with SARS-CoV-2 are not currently recommended as a first-line test for the initial diagnosis of COVID-19. However, they can be used in cases of negative RT-PCR and suggestive clinical presentation, or as a salvage test when RT-PCR could not be performed within 7 days of symptom onset.

Antigenic tests for the detection of SARS-CoV-2 can be used as a first-line test on nasopharyngeal swabs up to and including 4 days after the onset of symptoms. From the 5th day, only detection by gene amplification is indicated. Given their excellent specificity and the current pandemic situation, it is not necessary to confirm positives with a gene amplification test.

However, it is recommended to perform a gene amplification test when the antigenic test result is negative or uninterpretable in symptomatic patients older than 65 years or with at least one risk factor for severe COVID-19.

For contact persons detected in isolation or in clusters, it is also possible to use antigenic tests in the following cases

* as soon as possible and then at 7 days for high-risk contacts (within the same household as an infected patient) ;
* 7 days after exposure for other contacts (low risk).

Given the rapidity of antigenic test results (15 to 30 minutes), the good performance of the Sofia SARS Antigen FIA test in target populations and its traceability, it could be used as a first-line test in emergency rooms and screening centers and thus have a positive impact on the management of ambulatory patients and, by corollary, on viral transmission.

Eligibility criteria: Inclusion Criteria:

* Adult patient (\> or = 18 years of age)
* Patient with symptoms of COVID-19 (Rhinitis, throat pain, nasal congestion or other signs of local manifestation of the disease in the upper respiratory tract, including loss of taste, with or without additional systemic symptoms such as fatigue, fever, muscle pain...) whose health condition does not require hospitalization (mild to moderate disease)
* Patient with these symptoms for 5 days or less with a median of 3 to 4 days.
* Patient with consent to participate in the study

Exclusion Criteria:

* Patient with an age below 18 years
* Patient under legal protection (guardianship, curatorship)
* Patient without upper respiratory tract symptoms
* Patients with symptoms for more than 5 days
* Patient with previous COVID-19 diagnosed by RT-PCR
* Patient vaccinated against SARS-CoV-2 (1 or 2 injections)
* Hospitalized patient
* Refusal to participate

Primary outcomes:
measure: assessment Vs gold standard
timeFrame: Up to 35 positive PCR
Secondary outcomes:
Other outcomes:
Locations:
city: Brest
country: France
facility: Centre de dépistage - CHRU BREST
city: Brest
country: France
facility: CHRU de brest
Study officials:
References: