Additional medication
After the first 5 patients had been treated, the protocol was amended to include mandatory premedication with dexamethasone 20 mg (or equivalent) and antihistamines 1 h prior to the first and second infusions of AFM11 in cycle 1 and with dexamethasone 10 mg (or equivalent) and antihistamines 1 h before all subsequent infusions. Any other medication necessary for the patient’s wellbeing was given at the discretion of the investigator.