NCT07636720 · The University of Texas Health Science Center at San Antonio
Sensing in Sleep Deep Brain Stimulation
What this study is about
Participants in this study have Parkinson's Disease and already have a device, called the Percept RC Deep Brain Stimulation device implanted. People with Parkinson's disease often have issues related to sleep such as bad quality of sleep, waking up often and sleep apnea (breathing stops and starts during sleep).
View original scientific description
Participants in this study have Parkinson's Disease and already have a device, called the Percept RC Deep Brain Stimulation device implanted. People with Parkinson's disease often have issues related to sleep such as bad quality of sleep, waking up often and sleep apnea (breathing stops and starts during sleep). For this study, participants will be sleeping overnight in the study sleep lab for two nights. One night, Deep Brain Stimulation (DBS) device turned on and one night with the DBS off, either in this order or the reverse.
Interventions
DEVICE
Polysomnography ON stimulation then OFF
Patients will undergo a 2-night Polysomnography (PSG). Stimulation will be set to "ON" stimulation for the 1st PSG night, then will cross over the 2nd PSG study night in the opposite stimulation state. Each subject will act as their own control.
DEVICE
Polysomnography OFF stimulation then ON
Patients will undergo a 2-night Polysomnography (PSG). Stimulation will be set to "OFF" stimulation for the 1st PSG night, then will cross over the 2nd PSG study night in the opposite stimulation state. Each subject will act as their own control.
Primary outcome measures
Sensing & Sleep: Parkinson's Disease Sleep Assessment
Time frame: Day 1 to Day 14
A 7 item to rate sleep experience scored 0=unsure, 1=No and 2=Yes. Total range of scores is from 0-14 with a higher score indicating more issues with sleep
Motor severity
Time frame: Baseline to Day 14
Motor severity will be assessed by the Movement Disorders Society - Unified Parkinson's Disease Rating Scale - part III. This scale is the gold standard for measuring the severity and progression of PD. Part III entails motor examination which consists of 18 questions that are scored on a 0-4 scale. Higher scores suggest greater severity and progressing disease.
Epworth Sleepiness Scale (ESS)
Time frame: Baseline to Day 14
The ESS is a short, self-administered survey that asks respondents to rate their likelihood of dozing off in eight different situations on a scale of 0-3. The total score ranges from 0-24, and is used to estimate if the respondent has excessive daytime sleepiness that may require medical attention. A score over 10 is abnormal. Higher scores suggest greater severity of daytime sleepiness.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Ability of subject to understand and the willingness to sign a written informed consent document.
- Males and females; Age 40-80
- Subjects with the diagnosis of idiopathic PD consistent with the United Kingdom Parkinson Disease society brain bank criteria, or documented diagnosis of Parkinson Disease who have a Deep Brain Implant, Percept RC device to subthalamic nucleus (STN) or Globus pallidus internus (GPi).
- Willingness to adhere to the PSG regimen and turn DBS off for one night.
- A score of ≥23 on the Montreal Cognitive Assessment (MoCA)
- Be willing to stop any sleep hypnotics such as benzodiazepines and Ambien, with a 3 day washout period.
Exclusion criteria
- History of severe cardiovascular disease, untreated obstructive sleep apnea (OSA).
- History of other neurological disorders affecting the central nervous system such as stroke, multiple sclerosis, tumors, amyotrophic lateral sclerosis or muscle disease such as muscular dystrophy, myopathy.
- History of Dementia.
- Report dopaminergic medication changes in the past month.
Where
- San Antonio, Texas
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Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Jun 9, 2026 · Source of record for eligibility and locations