Corticosteroids ≥20mg (0,5mg/kg) prednisolone (or equivalent per day for more than 4 weeks
Corticosteroid dose of ≥5mg prednisolone (or equivalent) per day for more than four weeks plus at least one other immunosuppressive medication (e.g. azathioprine, mycophenolate,
ciclosporin) or rituximab within the last 12 months.