RecruitingEvaluation of Effectiveness of Closed-loop Spinal Cord Stimulation (CL-SCS) Therapy for Treatment of Chemotherapy Induced Peripheral NeuropathyThe goal of this observational study is to learn about the effectiveness of closed-loop spinal cord stimulation (CL-SCS) therapy for treatment of painful chemotherapy induced peripheral neuropathy. The closed-loop SCS (CL-SCS) system stimulates the nerves in the spinal cord, measures their responses and automatically adjust the stimulation level accordingly in real time for each delivered pulse.