It is hypothesized that the PEP flute has positive effects on SARS-CoV-2 infected individual's self-reported respiratory symptoms such as dyspnoea, coughing and perceived mucus clearance through beneficial effects on lung function and airway clearance. Furthermore, the investigators expect a lower rate of hospitalization and use of antibiotics in the intervention group as compared to the control group.
Finally, potential subgroup effects by gender, age, comorbidity and BMI at study entry will be explored for all outcomes.
Based upon a sample size estimation the investigators assess that inclusion of 200 participants in each intervention arm will be an adequate number. Based on the present testing strategy and COVID-19 incidence, current expectations are that two months should be enough to recruit 400 patients. The investigators will allow for recruitment to the end of December 2020, but will terminate enrolment at n = 400.
Link to detailed protocol paper will be added once published.