TY - JOUR T1 - Autoimmune storm following alemtuzumab JF - BMJ Case Reports JO - BMJ Case Reports DO - 10.1136/bcr-2021-248037 VL - 15 IS - 6 SP - e248037 AU - Chelsea Chan AU - Philippe Beauchemin AU - Ana-Luiza Sayao AU - Mollie Carruthers Y1 - 2022/06/01 UR - http://casereports.bmj.com/content/15/6/e248037.abstract N2 - Alemtuzumab has been associated with the emergence of secondary autoimmune diseases. We report a case of a patient with relapsing–remitting multiple sclerosis who developed a refractory immune thrombocytopaenia associated with vasculitis, myelofibrosis and later Guillain-Barré syndrome following alemtuzumab. The medical community should be aware of unusual and unexpected adverse events that may be associated with alemtuzumab, especially when occurring simultaneously in the same patient. ER -