美国匹兹堡大学Derek C. Angus团队分析了氢化可的松治疗COVID-19重症患者对死亡率和器官支持的影响。2020年9月2日，该研究发表在《美国医学会杂志》上。
Title: Effect of Hydrocortisone on Mortality and Organ Support in Patients With Severe COVID-19: The REMAP-CAP COVID-19 Corticosteroid Domain Randomized Clinical Trial
Author: The Writing Committee for the REMAP-CAP Investigators, Derek C. Angus, Lennie Derde, Farah Al-Beidh, Djillali Annane, Yaseen Arabi, Abigail Beane, Wilma van Bentum-Puijk, Lindsay Berry, Zahra Bhimani, Marc Bonten, Charlotte Bradbury, Frank Brunkhorst, Meredith Buxton, Adrian Buzgau, Allen C. Cheng, Menno de Jong, Michelle Detry, Lise Estcourt, Mark Fitzgerald, Herman Goossens, Cameron Green, Rashan Haniffa, Alisa M. Higgins, Christopher Horvat, Sebastiaan J. Hullegie, Peter Kruger, Francois Lamontagne, Patrick R. Lawler, Kelsey Linstrum, Edward Litton, Elizabeth Lorenzi, John Marshall, Daniel McAuley, Anna McGlothin, Shay McGuinness, Bryan McVerry, Stephanie Montgomery, Paul Mouncey, Srinivas Murthy, Alistair Nichol, Rachael Parke, Jane Parker, Kathryn Rowan, Ashish Sanil, Marlene Santos, Christina Saunders, Christopher Seymour, Anne Turner, Frank van de Veerdonk, Balasubramanian Venkatesh, Ryan Zarychanski, Scott Berry, Roger J. Lewis, Colin McArthur, Steven A. Webb, Anthony C. Gordon
Importance Evidence regarding corticosteroid use for severe coronavirus disease 2019 (COVID-19) is limited.
Objective To determine whether hydrocortisone improves outcome for patients with severe COVID-19.
Design, Setting, and Participants An ongoing adaptive platform trial testing multiple interventions within multiple therapeutic domains, for example, antiviral agents, corticosteroids, or immunoglobulin. Between March 9 and June 17, 2020, 614 adult patients with suspected or confirmed COVID-19 were enrolled and randomized within at least 1 domain following admission to an intensive care unit (ICU) for respiratory or cardiovascular organ support at 121 sites in 8 countries. Of these, 403 were randomized to open-label interventions within the corticosteroid domain. The domain was halted after results from another trial were released. Follow-up ended August 12, 2020.
Interventions The corticosteroid domain randomized participants to a fixed 7-day course of intravenous hydrocortisone (50 mg or 100 mg every 6 hours) (n=143), a shock-dependent course (50 mg every 6 hours when shock was clinically evident) (n=152), or no hydrocortisone (n=108).
Main Outcomes and Measures The primary end point was organ support–free days (days alive and free of ICU-based respiratory or cardiovascular support) within 21 days, where patients who died were assigned –1 day. The primary analysis was a bayesian cumulative logistic model that included all patients enrolled with severe COVID-19, adjusting for age, sex, site, region, time, assignment to interventions within other domains, and domain and intervention eligibility. Superiority was defined as the posterior probability of an odds ratio greater than 1 (threshold for trial conclusion of superiority >99%).
Results After excluding 19 participants who withdrew consent, there were 384 patients (mean age, 60 years; 29% female) randomized to the fixed-dose (n=137), shock-dependent (n=146), and no (n=101) hydrocortisone groups; 379 (99%) completed the study and were included in the analysis. The mean age for the 3 groups ranged between 59.5 and 60.4 years; most patients were male (range, 70.6%-71.5%); mean body mass index ranged between 29.7 and 30.9; and patients receiving mechanical ventilation ranged between 50.0% and 63.5%. For the fixed-dose, shock-dependent, and no hydrocortisone groups, respectively, the median organ support–free days were 0 (IQR, –1 to 15), 0 (IQR, –1 to 13), and 0 (–1 to 11) days (composed of 30%, 26%, and 33% mortality rates and 11.5, 9.5, and 6 median organ support–free days among survivors). The median adjusted odds ratio and bayesian probability of superiority were 1.43 (95% credible interval, 0.91-2.27) and 93% for fixed-dose hydrocortisone, respectively, and were 1.22 (95% credible interval, 0.76-1.94) and 80% for shock-dependent hydrocortisone compared with no hydrocortisone. Serious adverse events were reported in 4 (3%), 5 (3%), and 1 (1%) patients in the fixed-dose, shock-dependent, and no hydrocortisone groups, respectively.
Conclusions and Relevance Among patients with severe COVID-19, treatment with a 7-day fixed-dose course of hydrocortisone or shock-dependent dosing of hydrocortisone, compared with no hydrocortisone, resulted in 93% and 80% probabilities of superiority with regard to the odds of improvement in organ support–free days within 21 days. However, the trial was stopped early and no treatment strategy met prespecified criteria for statistical superiority, precluding definitive conclusions.