CnF-DBS for Levodopa-Resistant FOG

This is a multi-site, prospective, randomized, sham-controlled, crossover, double-blinded feasibility clinical trial assessing the extent to which cuneiform nucleus deep brain stimulation (CnF DBS) can ameliorate freezing of gait (FOG) in Parkinson's Disease (PD) patients with severe, Levodopa-resistant gait freezing. The study intends to determine the optimal stimulation parameters (frequency, pulse, amplitude) that maximize gait performance while minimizing any potential side effects and to evaluate the effect of CnF DBS on other PD symptoms (including pain) and quality of life. Participation in the study is expected to last approximately eight months from enrollment through completion of study activities. Study procedures include medical and neurological evaluations, walking and mobility assessments, questionnaires, brain imaging, device programming visits, and collection of information about your symptoms, safety, and quality of life. The most significant risks of participation are those associated with DBS surgery and chronic brain stimulation, including bleeding, infection, stroke, seizure, device-related complications, worsening of neurological symptoms, falls, and stimulation-related side effects.