Parkinson's Disease Trial, Recruiting
Who may be able to join
AI generated eligibility summary. Written by an AI model from the official source data and checked on a sample basis. It can contain mistakes, so confirm anything important against the original source. How we use AI
Who might be able to join this trial:
- People aged 18 years or older
- People who have been diagnosed with idiopathic Parkinson's Disease (Parkinson's with no known external cause)
- People who have previously had a specific brand of deep brain stimulation (DBS) device implanted — the Boston Scientific Vercise™ system
- People who have had this DBS device implanted for at least 3 months before joining the trial
- People who have advanced Parkinson's Disease and had DBS surgery on both sides of the brain, targeting a specific brain region called the subthalamic nucleus, as part of their standard treatment for movement symptoms, with the electrode tips placed in a specific part of that region
Who may not be able to join:
- People who are unable to give their own informed consent to take part in the trial
- People with cognitive (thinking or memory) or physical difficulties that would prevent them from completing cognitive (thinking and memory) tests
- People who score below 15 on a specific cognitive screening test called the Montreal Cognitive Assessment Test-Blind
- People who score above 20 on a specific depression screening questionnaire called the Center for Epidemiologic Studies Depression Scale
- Women who are pregnant, and people who are currently incarcerated
- People who do not speak English, as the cognitive tasks in this trial are conducted in English only
Important: Always verify eligibility with the trial site directly before applying.
Based on publicly available eligibility criteria from ClinicalTrials.gov. Verify directly with the trial site before acting. This is not medical advice.
Contact this trial
Principal Investigator: Kiarash Shahlaie, MD, PhD, University of California, Davis
Phone: 916-703-5505
Contact details sourced from ClinicalTrials.gov. Verify directly with the trial site before attending.
GP referral letter
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Trial details
Where this trial is recruiting
Primary endpoints
Mean Change from Baseline in Depression Scores on the Center for Epidemiologic Studies Depression Scale (CES-D); Mean Change from Baseline in Impulsiveness Scores on the Barratt Impulsiveness Scale (BIS-11); Mean Change from Baseline in Neuropsychiatric Inventory (NPI); Mean Change from Baseline in Movement Scores on Part III of the Unified Parkinson's Disease Rating Scale (MDS-UPDRS); Mean Change from Baseline in Cognitive Performance Scores on the Montreal Cognitive Assessment - Blind (MoCA); Mean Change from Baseline in Depression Scores on the CES-D Short Version (CES-D-R10); Mean Change f...
Can't join this trial?
Data last synced from ClinicalTrials.gov: 28 July 2026. Trial status can change. Always verify current status directly with the trial site before making any decision.