Cortical Stimulation to Treat Mood & Behavioral Symptoms in Parkinson's

Status Active, not recruiting

Clinical Trial Summary

This study will investigate cortical stimulation to treat mood and behavioral symptoms in Parkinson's disease patients.

Clinical Trial Description

Depression, anxiety and impulse control disorders are among the most prominent neuropsychiatric symptoms in Parkinson's disease (PD) that greatly impact patients' and caregivers' quality of life. However, the neural correlate underlying these symptoms is still largely unknown preventing the development of comprehensive treatment for these symptoms. The aims of this study are to 1) Determine the neural correlates of non-motor symptoms, 2) Determine how cortical stimulation can reduce these symptoms and normalize the abnormal brain signals, and 3) Teach patients how to voluntarily modulate the abnormal brain signals. Ten PD patients undergoing deep brain surgery (DBS) implantation and diagnosed with mild to moderate mood disorder and/or impulsive behavior will be enrolled in this study. In addition to the standard therapeutic DBS electrode used to treat motor symptoms, a flexible electrode will be placed over the prefrontal cortex. Both electrodes will be attached to the Medtronic Activa PC+S pulse generator (and Medtronic Summit RC+S pulse generator as replacements), investigational devices that allows therapeutic stimulation and chronic brain recordings. At multiple time points, up to 2 years post-implantation, in our clinic or patient's home, brain signals will be recorded while patients are resting or performing emotion/cognition tasks. Symptoms will be assessed using validated questionnaires and tasks to allow identification of neurophysiological correlates of non-motor symptoms. There is also an optional sleep study included for better understanding of the brain's physiology. The investigators will then investigate the effect of cortical stimulation on both symptoms severity and brain signals that may be related to symptom expression. These signals will then be used to implement closed-loop controlled cortical stimulation and neuro-feedback controlled strategies. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT03131817
Study type	Interventional
Source	University of California, San Francisco
Contact
Status	Active, not recruiting
Phase	N/A
Start date	December 16, 2016
Completion date	December 16, 2028

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Cortical Stimulation to Treat Mood and Behavioral Symptoms in Parkinson's Disease Patients — PC+S_PFC

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms