Literature search findings on main research questions
Dr. Landewé observed that the task force concluded that “current literature provides no evidence that patients with RMDs face more risk of contracting SARS-CoV-2 than individuals without RMDs.” They also concluded that patients with RMDs who do contract COVID-19 do not have a worse prognosis either, even though there have been a few studies suggesting a higher rate of hospitalization.
Both findings are reassuring as they fit with the existing recommendation to follow the same preventive and control measures in patients with RMDs as for the general population, but the task force is yet to determine if that recommendation should be amended.
There did not appear to be any hard evidence of any unique demographic feature or comorbidity that puts people with RMDs at more risk for severe COVID-19 than the general population. Think older age, male gender, high bodyweight, cardiovascular disease, diabetes, and chronic lung disease, Dr. Landewé said.
He noted, however, that there were some single-center reports suggesting that moderate or high levels of disease activity could put people with RMDs at greater risk for COVID-related death, “which is an intriguing finding in the context of discontinuing antirheumatic medication.” That is likely something the task force will be discussing when they decide how to update their recommendations.
The type of RMD may also be important, but again only single-center evidence to show that there might be an increased hospitalization risk in patients with autoinflammatory disease or risk for severe COVID-19 in those with certain connective tissue diseases. “These associations were not consistently found in other studies,” so it’s an open question how the task force decides to incorporate this into the updated guidance.
As for antirheumatic medications, conclusions from the literature review suggest that there doesn’t appear to be an increased or decreased risk for severe COVID-19 among users of NSAIDs or antimalarials.
That’s not the case for glucocorticoids. There appears to be an increased risk for hospitalization and COVID-19–related death, notably among those using higher (>10 mg) daily doses. “This is, so to say, the elephant in the room,” Dr. Landewé said. The current recommendation states that chronic users of glucocorticoids should continue their treatment. “The reports of additional risk could be due to glucocorticoids or to biases such as confounding by indication. So, the conclusion that we draw [is] not completely clear.”
In response to a question, he clarified this a little further: “We think ‘glucocorticoid use’ is a determinant of worse health, as is the case in many RMDs. Be aware that finding a positive association between [glucocorticoid] use and bad outcome does not mean that if you reduce [glucocorticoids], your patient will have a better outcome.”
The jury is also out on rituximab, which has been reported to increase the risk of severe COVID-19 and COVID-related death in two studies. There are also equivocal data on whether not using disease-modifying antirheumatic drugs increases the risk for these worse outcomes.
Asked about the absence of a recommendation on the use of the interleukin-6 inhibitor tocilizumab, Dr. Landewé responded: “We are caught up by evolving evidence. That is a generic problem in a dynamic field of COVID-19, I am afraid. What you recommend today is sometimes ‘old history’ tomorrow.”
Dr. Landewé had no relevant disclosures to make.