Long‐term course of oxaliplatin‐induced polyneuropathy: a prospective 2‐year follow‐up study
This prospective study sought to identify the potential reversibility of oxaliplatin‐induced peripheral neuropathy (OXAIPN) by following‐up its long‐term course 2 years after discontinuation of oxaliplatin (OXA)‐based chemotherapy. Participants were 91 colorectal cancer patients treated with OXA‐based chemotherapy. Neurological assessment, clinical Total Neuropathy Score© (TNSc©) and nerve conduction studies were performed at baseline (T0), the end of chemotherapy (T1) and 2 years (T2) after discontinuation of chemotherapy. A total of 73 of 91 (80%) patients experienced OXAIPN at T1. At a median follow‐up of 25 months, persistence of chronic OXAIPN was present in 61 of 73 patients (84%) and complete resolution was present in 12 patients (17%). Longitudinal comparison of TNSc© values between T1 and T2 revealed that the overall severity of OXAIPN in those 61 patients significantly decreased over time. Median TNSc© values were nine (range: 2–15) at T1 vs. four (range: 2–12) at T2 (P < 0.001). Likewise, sensory nerve conduction measures at T2 significantly improved in all sensory nerves tested, compared with T1. Severity of OXAIPN at T2 was significantly associated (P < 0.001) with high severity of OXAIPN at T1. In conclusion, persistence of OXAIPN beyond 2 years after finishing chemotherapy is common. Clinical and neurophysiological improvement is observed, although recovery is often incomplete.
No Supplementary Data
No Article Media