This is a prospective, randomized, sham-controlled, double-blinded and multiple center trial on electro-acupuncture for preventing and treating symptoms of chemotherapy-induced neurotoxicity in patients with colorectal cancer. A total of 150 candidates will be recruited in this study four weeks before chemotherapy for best preventive effect. They will be assigned randomly into either the electro-acupuncture or the sham-control group with 1:1 ratio. Both groups will receive a total of 24 sessions of interventions (4 weeks before chemotherapy and 8 weeks during chemotherapy, with 2 session per week), and will be followed up regularly for up to 12 weeks after completion of the acupuncture.
