Home-based Transcranial Static Magnetic Field Stimulation (tSMS) of the Supplementary Motor Area in Parkinson's Disease

This study is testing whether a home-based device that applies static (non-moving, non-electrical) magnetic fields to the head can help improve motor symptoms in people with Parkinson's disease. Unlike transcranial magnetic stimulation (TMS), this device uses permanent magnets and does not generate electrical currents. Participants use the device at home over several weeks, making it convenient and potentially accessible to people who cannot travel frequently to a clinic. **You may be eligible if...** - You have been diagnosed with idiopathic Parkinson's disease (the most common form, not caused by other conditions) - Your motor symptoms (like tremor, stiffness, slowness) respond well to your dopamine medication — at least a 30% improvement on a standard assessment scale (MDS-UPDRS-III) **You may NOT be eligible if...** - You have metal implants in your body that are unsafe near magnets, such as a cardiac pacemaker, deep brain stimulator, or cochlear implant - You have involuntary movements (dyskinesias) caused by your Parkinson's medication - You have other major neurological or psychiatric conditions Talk to your doctor to see if this trial is right for you.