165 patients were recruited from March 27 to April 6, 2020, and 148 patients were randomised (68 patients to the sarilumab group and 80 to the usual care group) and followed up for 90 days. Median age was 61·7 years [IQR 53·0-71·1] in the sarilumab group and 62·8 years [56·0-71·7] in the usual care group..