The course of peripheral neuropathy and its association with health-related quality of life among colorectal cancer patients

Purpose To gain more insight into the course of chemotherapy-induced peripheral neuropathy (CIPN) and its impact on health-related quality of life (HRQoL) in a population-based sample of colorectal cancer (CRC) patients up to 2 years after diagnosis. Methods All newly diagnosed CRC patients from four hospitals in the Netherlands were eligible for participation in an ongoing prospective cohort study. Patients (n = 340) completed questions on CIPN (EORTC QLQ-CIPN20) and HRQoL (EORTC QLQ-C30) before initial treatment (baseline) and 1 and 2 years after diagnosis. Results Among chemotherapy-treated patients (n = 105), a high sensory peripheral neuropathy (SPN) level was reported by 57% of patients at 1 year, and 47% at 2-year follow-up, whereas a high motor peripheral neuropathy (MPN) level was reported by 47% and 28%, at years 1 and 2, respectively. Linear mixed model analyses showed that SPN and MPN symptoms significantly increased from baseline to 1-year follow-up and did not return to baseline level after 2 years. Patients with a high SPN or MPN level reported a worse global quality of life and a worse physical, role, emotional, cognitive, and social functioning compared with those with a low SPN or MPN level. Conclusions Future studies should focus on understanding the mechanisms underlying CIPN so targeted interventions can be developed to reduce the impact of CIPN on patient's lives. Implications for cancer survivors Patients need to be informed of both CIPN and the impact on HRQoL.

Automated summary

The study found that among chemotherapy-treated patients, a high level of sensory and motor peripheral neuropathy symptoms significantly increased from baseline to 1-year follow-up, and did not return to baseline level after 2 years. Patients with high levels of sensory or motor peripheral neuropathy reported a worse health-related quality of life, including physical, role, emotional, cognitive, and social aspects. Future studies should focus on developing targeted interventions to reduce the impact of chemotherapy-induced peripheral neuropathy on patients' lives.