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Inhaled steroids to be tested as a possible treatment for COVID-19


The NIHR-supported PRINCIPLE trial is to start investigating the inhaled corticosteroid budesonide to find out if it can help treat COVID-19 in patients who aren’t in hospital. 

Led by the University of Oxford, the PRINCIPLE is the UK’s national platform trial for COVID-19 treatments that can be taken at home. It is evaluating treatments that can help people aged over 50 recover quickly from COVID-19 illness and prevent the need for hospital admission. The study, funded by NIHR and UK Research and Innovation (UKRI) has so far recruited more than 2100 volunteers from across the UK with support from NIHR’s Clinical Research Network.

Inhaled budesonide is often used to treat asthma and chronic obstructive pulmonary disease, with no serious side-effects associated with short-term use.

In some patients with COVID-19, the body’s immune response to the virus can cause high levels of inflammation that can damage cells in the airways and lungs. Inhaling budesonide into the airways targets anti-inflammatory treatment where it is needed most, and can potentially minimise any lung damage that might otherwise be caused by the virus.

Patients taking part in the study will be randomly assigned to receive an inhaler in the post, alongside the usual care from their clinician. They will be asked to inhale two puffs twice a day for 14 days with each puff providing a 400 microgram dose of budesonide. They will be followed up for 28 days and will be compared with participants who have been assigned to receive the usual standard-of-care only.

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Source: National Institute for Health Research, 27 November 2020

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