Steroid found to improve survival of critically ill Covid-19 patients
A new international study has shown that treating critically ill Covid-19 patients with the steroid hydrocortisone improves their chances of recovery.
The study, led in the UK by Professor Anthony Gordon from Imperial College London with collaborators from the Intensive Care National Audit & Research Centre, found that patients receiving intensive care who were treated with a regular fixed dose of the steroid hydrocortisone for seven days had a better chance of recovery, compared with patients who were not treated with the steroid. Patients in the UK were treated at 88 hospitals, including Imperial College Healthcare NHS Trust hospitals.
This research is one of three studies published at the same time in the Journal of the American Medical Association (JAMA), that suggests steroids improve the survival of the sickest Covid-19 patients. As a result, the World Health Organisation will be issuing new guidelines to include the use of steroids to treat critically ill Covid-19 patients.
Professor Gordon, chair in anaesthesia and critical care and a consultant in intensive care medicine at Imperial College Healthcare, said: “At the beginning of the year at times it felt almost hopeless, knowing that we had no specific treatments. It was a very worrying time. Yet less than six months later, we've found clear, reliable evidence in high quality clinical trials of how we can tackle this devastating disease.”
Professor Gordon added: “The studies published today show that we now have more than one choice of treatment for those who need it most. Steroids are not a cure, but they help improve outcomes. Having a choice of different types of steroids, all of which seem to improve patient recovery, is great as it helps ease the problem of drug supply issues.”
NHS chief executive Sir Simon Stevens said: “One of the distinctive benefits of having our NHS is that we've been able to mobilise quickly and at scale to help researchers test and develop proven coronavirus treatments. Just as we did with dexamethasone, the NHS will now take immediate action to ensure that patients who could benefit from treatment with hydrocortisone do so, adding a further weapon in the armoury in the worldwide fight against Covid-19.”
Professor Jonathan Van-Tam, Deputy Chief Medical Officer said: “These findings offer further evidence that corticosteroids can be an important part of Covid-19 treatment for severe patients.
“Both the REMAP-CAP and the Bristol University papers show the important work that has been done here in the UK by researchers in making further major contributions towards the international evidence. It is impressive to see so many UK participants willing to take part in studies, and able to volunteer due to the rapid recruitment response of the NIHR’s Clinical Research Network. Research such as this will make the difference in controlling this virus.”
Steroids are anti-inflammatory drugs, and evidence strongly suggests that they reduce the lung inflammation in patients with Covid-19 who are seriously ill and require oxygen support for their breathing difficulties.
In the hydrocortisone study, 403 patients with suspected or confirmed Covid-19 who required respiratory or cardiovascular organ support (such as mechanical ventilation or drugs to support their blood pressure) were enrolled between March and June 2020. The cohort included patients of mixed ethnicities in the UK, Ireland, Australia, the US, the Netherlands, New Zealand, Canada and France and patients were randomly assigned to different treatment regimes. One group were treated with a fixed dose of 50mg hydrocortisone four times a day for seven days, another group were treated with hydrocortisone only if their blood pressure dropped, and a third group received no hydrocortisone.
The trial showed that using the fixed dose of hydrocortisone led to a 93 per cent chance of a better outcome (greater chance of survival and less need for organ support) than not using hydrocortisone. If the hydrocortisone was given only when the blood pressure was low, the chance of a better outcome was 80 per cent. The work was funded by the National Institute for Health Research and supported by the NIHR Imperial Biomedical Research Centre.
A different study, called the RECOVERY trial, was also investigating whether another type of steroid, called dexamethasone, helped improve recovery of patients with Covid-19. The first results from the study, published in early June, suggested dexamethasone boosted recovery.
The dexamethasone study showed positive results and led the hydrocortisone steroid study to stop recruiting patients on 17 June. These new results add to the previous study and provide additional support that steroids improve recovery in severe COVID-19.
The findings are published in JAMA alongside two further clinical trials which have also evidenced the benefits of steroids as a treatment for the severely ill Covid-19 patients. This journal edition also includes an overall analysis of the three independent studies, plus data from the original RECOVERY trial and three other smaller trials. It concludes that a range of steroids – all safe, cheap and readily available - can improve the outcomes of patients receiving intensive care.
Professor Gordon, from the Department of Surgery and Cancer at Imperial College London, added: “This been an incredible international effort. We were all aware of the other studies and were happy to share our raw data before it was published. Only by collaborating were we going to make real advances and make them fast.”