Oxaliplatin is a chemotherapy drug frequently used in the treatment of colorectal cancers, the third most common type of cancer. However, oxaliplatin is associated with long-term neurotoxicity, the most common dose-limiting side effect. Chemotherapy-induced peripheral neuropathy (CIPN) is a common adverse effect of platinum-based chemotherapy agents, such as oxaliplatin. CIPN limits patients' ability to tolerate treatment and adversely affects long-term quality of life and physical functionality. In individuals undergoing colorectal cancer treatment, the prevalence of CIPN has been reported as 58% at 6 months, 45% at 12 months, 32% at 24 months, and 24% at 36 months post-treatment. Additionally, oxaliplatin exhibits a "coasting phenomenon," in which CIPN symptoms continue to worsen for approximately 3 months after treatment. Although the incidence and sensory symptoms of oxaliplatin-induced CIPN during chemotherapy have been well documented, the chronic-phase motor symptom burden of oxaliplatin-induced CIPN has not been reported. Studies investigating the motor aspects of CIPN are insufficient, and further research is needed to determine its prevalence, progression, and impact on functional outcomes.
