[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100646203":3},{"organization":4,"armGroups":7,"interventions":16,"overallOfficials":31,"centralContacts":35,"locations":42,"responsibleParty":60,"collaborators":22,"id":64,"slug":65,"hasResults":66,"nctId":67,"briefTitle":68,"officialTitle":68,"acronym":22,"eligibilityCriteria":69,"healthyVolunteers":70,"sex":71,"minAge":72,"maxAge":73,"enrollmentInfo":74,"targetDuration":22,"studyType":77,"phases":78,"briefSummary":80,"conditions":81,"keywords":22,"overallStatus":45,"whyStopped":22,"lastUpdateSubmitDate":84,"lastUpdatePostDateStruct":85,"startDateStruct":88,"completionDateStruct":90,"leadSponsor":92,"locationsCount":93},{"fullName":5,"class":6},"University Health Network, Toronto","OTHER",[8],{"label":9,"type":10,"description":11,"interventionNames":12},"Arm 1","ACTIVE_COMPARATOR","All participants will receive excitatory, inhibitory, and sham stimulation to the PPN. The order that they receive it is randomized across Visits 2 - 4. All stimulation within a visit will be the same.",[13,14,15],"Device: Excitatory Stimulation","Device: Inhibitory Stimulation","Device: Sham",[17,23,27],{"type":18,"name":19,"description":20,"armGroupLabels":21,"otherNames":22},"DEVICE","Excitatory Stimulation","Excitatory Stimulation to the PPN",[9],null,{"type":18,"name":24,"description":25,"armGroupLabels":26,"otherNames":22},"Inhibitory Stimulation","Inhibitory Stimulation to the PPN",[9],{"type":18,"name":28,"description":29,"armGroupLabels":30,"otherNames":22},"Sham","Sham stimulation to PPN",[9],[32],{"name":33,"affiliation":5,"role":34},"Robert Chen, MD","PRINCIPAL_INVESTIGATOR",[36],{"name":37,"role":38,"phone":39,"phoneExt":40,"email":41},"Julian Kwok","CONTACT","416-603-5800","2708","julian.kwok@uhn.ca",[43],{"facility":44,"status":45,"city":46,"state":47,"zip":48,"country":49,"countryCode":50,"cosmosGeoPoint":51,"geoPoint":56,"contacts":57},"Toronto Western Hospital","RECRUITING","Toronto","Ontario","M5T 2S8","Canada","CA",{"type":52,"coordinates":53},"Point",[54,55],-79.39864,43.70643,{"lat":55,"lon":54},[58,59],{"name":37,"role":38,"phone":39,"phoneExt":40,"email":41},{"name":33,"role":34,"phone":22,"phoneExt":22,"email":22},{"type":61,"investigatorFullName":62,"investigatorTitle":63,"investigatorAffiliation":5,"oldNameTitle":22,"oldOrganization":22},"SPONSOR_INVESTIGATOR","Robert Chen","Senior Scientist","100646203","pedunculopontine-nucleus-transcranial-ultrasound-stimulation-as-a-treatment-of-freezing-of-gait-in-parkinsons-disease-100646203",false,"NCT07695233","Pedunculopontine Nucleus Transcranial Ultrasound Stimulation as a Treatment of Freezing of Gait in Parkinson's Disease","Inclusion Criteria:\n\n* 18-90 years of age\n* Confirmed diagnosis of a movement disorder with Freezing of Gait\n* Stable dopaminergic medication dose for a minimum of 4 weeks\n\nExclusion Criteria:\n\n* History of stroke or seizure\n* Comorbid dementia\n* Scored below 22 on the Montreal Cognitive Assessment (MoCA)\n* Has intracranial implant(s) or device(s)\n* Has an implanted cardiac pacemaker or implantable cardioverter-defibrillator (ICD)\n* Has a previous surgical intervention to treat the movement disorder such as lesioning or a DBS system in place.\n* Presence of metal implanted in body that is contraindicated in TMS\u002FMRI\n* Pregnancy\n* Major depression\u002Fpsychiatric disorder that in the opinion of the Investigator will affect patient's understanding of study procedures and willingness to abide by all procedures during the course of the study\n* Is on antipsychotics, marijuana, or other recreational drugs that affect the nervous system\n* Major musculoskeletal or neuromuscular disease or disorder of the hands, wrists and limbs\n* Major systemic illness or infection",true,"ALL","18 Years","90 Years",{"count":75,"type":76},50,"ESTIMATED","INTERVENTIONAL",[79],"NA","This study is investigating the use of transcranial ultrasound stimulation (TUS) on the Pedunculopontine nucleus (PPN) in changing freezing of gait in people with Parkinson's disease. The PPN is noted to be involved in voluntary movements, locomotion, and muscle tone. This will be assessed by patient-reported outcomes and analyzing the gait. The study will also investigate the effects of the stimulation on the PPN and surrounding connectivity by using magnetic resonance imaging (MRI).",[82,83],"Parkinson Disease","Freezing of Gait Symptoms in Parkinson Disease","2026-07-05",{"date":86,"type":87},"2026-07-10","ACTUAL",{"date":89,"type":87},"2024-05-17",{"date":91,"type":76},"2028-12",{"name":62,"class":6},1]