Consistent treatment effects
When considered along with previously reported short-term results from the REMAP-CAP trial, the findings indicate that initial in-hospital treatment effects were consistent for most therapies through 6 months.
“We were very relieved to see that treatments with a favorable benefit for patients in the short term also appeared to be beneficial through 180 days,” said Dr. Lawler. “This supports the current clinical practice strategy in providing treatment to critically ill patients with COVID-19.”
In a subgroup analysis of 989 patients, health-related quality of life at day 180 was higher among those treated with IL-6 receptor antagonists and antiplatelet agents. The average quality-of-life score for the lopinavir-ritonavir group was lower than for control patients.
Among 720 survivors, 273 patients (37.9%) had moderate, severe, or complete disability at day 180. IL-6 receptor antagonists had a 92.6% probability of reducing disability, and anakinra (an IL-1 receptor antagonist) had a 90.8% probability of reducing disability. However, lopinavir-ritonavir had a 91.7% probability of worsening disability.
The REMAP-CAP trial investigators will continue to assess treatment domains and long-term outcomes among COVID-19 patients. They will evaluate additional data regarding disability, quality of life, and long-COVID outcomes.
“Reassuring” results
Commenting on the study, Angela Cheung, MD, PhD, a professor of medicine at the University of Toronto and senior scientist at the Toronto General Research Institute, said, “It is important to look at the longer-term effects of these therapies, as sometimes we may improve things in the short term, but that may not translate to longer-term gains. Historically, most trials conducted in this patient population assess only short outcomes, such as organ failure or 28-day mortality.”
Dr. Cheung, who wasn’t involved with this study, serves as the co-lead for the Canadian COVID-19 Prospective Cohort Study (CANCOV) and the Recovering From COVID-19 Lingering Symptoms Adaptive Integrative Medicine Trial (RECLAIM). These studies are also analyzing long-term outcomes among COVID-19 patients.
“It is reassuring to see that the 6-month outcomes are consistent with the short-term outcomes,” she said. “This study will help guide critical care medicine physicians in their treatment of critically ill patients with COVID-19.”
The study was supported by numerous grants and funds, including the Canadian Institute of Health Research COVID-19 Rapid Research Funding. Amgen and Eisai also provided funding. Dr. Lawler received grants from Canadian Institutes for Health Research and the Heart and Stroke Foundation of Canada during the conduct of the study and personal fees from Novartis, CorEvitas, Partners Healthcare, and the American College of Cardiology outside the submitted work. Dr. Cheung has disclosed no relevant financial relationships.
A version of this article first appeared on Medscape.com.