NEFL and neuropathy: This study aimed to determine: (1) whether serum levels of NfL correlate with clinical measures of neuropathy in patients receiving platinum or taxane agents, (2) if sNfL is predictive and might identify early axonal damage prior to the onset of clinical neuropathic symptoms and signs and (3) whether clinical factors other than neuropathy in people receiving chemotherapy are associated with sNfL levels.