Healthcare professionals are being advised to monitor patients and clinical trial participants who receive treatment for cancer with a chimeric antigen receptor (CAR) T cell therapy for the risk of secondary malignancies. In a commentary in The New England Journal of Medicine on 25 January, Nicole Verdun and Peter Marks write that while secondary cancers from these medicines appear to be relatively rare, they need to be identified. Drs Verdun and Marks are both senior officials at the US Food and Drug Administration.
