So @JAMA_current is having a blast of corticosteroid papers for COVID-19 today and I strongly recommend you have a look.
You can start with the WHO metanalysis that summarizes everything up: https://jamanetwork.com/journals/jama/article-abstract/2770279
Then you can move forward and check @ICURevisited and @azevedo_lcp's outstanding effort in using dexamethasone for ventilated COVID-19 patients. Kudos! Great effort. https://jamanetwork.com/journals/jama/article-abstract/2770277
Then you can see the REMAP-CAP results which present results in a lovely Bayesian fashion way. https://jamanetwork.com/journals/jama/article-abstract/2770278
Finally, but not least important, there is another cool paper by Dequin on hydrocortisone (which is far from being "negative") https://jamanetwork.com/journals/jama/article-abstract/2770276
Each paper has its own merit and deserves a deep look and read. I cannot commend @JAMA_current enough for putting this together in a single edition that is of pivotal importance for the community.