Open label, uncontrolled study shows that background use of azathioprine (2mg/kg) in Pegloticase treated refractory gout patients was partly effective - 6/12 completed, 2 still on Rx, 2 PEG ineffective and 2 side effx #EULAR2020 #Gout Abst#THU0410 https://t.co/APZRPCQUFg https://t.co/Nfsq4QjyA5