Covid19 Clinical Trial
Official title:
Comparison of Detection Rate of SARS-CoV-2 in Saliva, Oropharyngeal and Nasopharyngeal Specimens in a Public COVID-19 Test Setting
The aim of this study is to compare the SARS-CoV-2 detection rate using either a Saliva, oropharyngeal swabs or nasopharyngeal swab method for specimen collection.
The reference test to evaluate patients with suspected respiratory infection caused by virus is a real-time reverse transcription-polymerase chain reaction (RT-PCR) from a nasopharyngeal swab (NPS). However, other specimen collection methods like oropharyngeal swabs (OPS) and a saliva specimen collection have also been accepted by the Centers for Disease Control and Prevention for SARS-CoV-2 testing during the current coronavirus disease 19 (COVID-19) pandemic. It is unclear how much the SARS-CoV-2 detection rate differs when using different sampling methods and the aim of this study is to compare the expected COVID-19 detection rate using saliva, oropharyngeal swabs or nasopharyngeal swab in a public setting. We, therefore, aim to investigate the detection rate of SARS-CoV-2 in Saliva, oropharyngeal swab, and nasopharyngeal swab specimen samples collected in symptomatic and non-symptomatic individuals tested for COVID-19 in a public test center during the COVID-19 pandemic. Individuals referred for outpatient COVID-19 testing center will be invited to participate in a prospective clinical study. They will have saliva, OPS, and NPS specimen collection performed at the same time and analyzed separately for SARS-CoV-2. The rate for SARS-CoV-2 detection in saliva, OPS, and NPS will be compared using a logistic regression mixed-effect analysis. A Sample Size Calculation estimated that a sample of 18,000 participants would be needed for the trial with 80% power at a significance level of 5%. ;
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