NCT07636720

Brief Summary

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.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
20

participants targeted

Target at below P25 for not_applicable

Timeline
19mo left

Started Feb 2026

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress15%
Feb 2026Feb 2028

Study Start

First participant enrolled

February 27, 2026

Completed
1 month until next milestone

First Submitted

Initial submission to the registry

April 6, 2026

Completed
2 months until next milestone

First Posted

Study publicly available on registry

June 9, 2026

Completed
1.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2028

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 1, 2028

Last Updated

June 9, 2026

Status Verified

June 1, 2026

Enrollment Period

1.9 years

First QC Date

April 6, 2026

Last Update Submit

June 3, 2026

Conditions

Keywords

Deep Brain StimulationPolysomnographySleep Disorders

Outcome Measures

Primary Outcomes (3)

  • Sensing & Sleep: Parkinson's Disease Sleep Assessment

    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

    Day 1 to Day 14

  • Motor severity

    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.

    Baseline to Day 14

  • Epworth Sleepiness Scale (ESS)

    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.

    Baseline to Day 14

Study Arms (2)

STN-DBS Group

EXPERIMENTAL

Participants diagnosed with Parkinson's Disease who have subthalamic nucleus (STN) deep brain stimulation as a primary target for their condition

Device: Polysomnography ON stimulation then OFFDevice: Polysomnography OFF stimulation then ON

GPi-DBS Group

EXPERIMENTAL

Participants diagnosed with Parkinson's Disease who have Globus Pallidus internus (GPi) deep brain stimulation as a primary target for their condition.

Device: Polysomnography ON stimulation then OFFDevice: Polysomnography OFF stimulation then ON

Interventions

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.

Also known as: PSG OFF/ON
GPi-DBS GroupSTN-DBS Group

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.

Also known as: PSG ON/OFF
GPi-DBS GroupSTN-DBS Group

Eligibility Criteria

Age40 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • 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.

You may not qualify if:

  • 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.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

The University of Texas Health Science Center at San Antonio - Brain Health Center

San Antonio, Texas, 78229, United States

RECRUITING

MeSH Terms

Conditions

Parkinson DiseaseParkinsonian DisordersDyssomniasSleep Wake Disorders

Condition Hierarchy (Ancestors)

Basal Ganglia DiseasesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesMovement DisordersSynucleinopathiesNeurodegenerative DiseasesMental DisordersNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Eleni O Vaou, MD

    The University of Texas Health Science Center at San Antonio

    PRINCIPAL INVESTIGATOR
  • Pablo Coss, MD

    The University of Texas Health Science Center at San Antonio

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Eleni O Vaou, MD

CONTACT

Omalys Biggs Rodriguez

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Masking Details
The subject will be randomized after completion of the baseline visit. This study will utilize block randomization with permuted blocks in a 1:1 ratio. Individuals will be assigned to either Group 1 or Group 2 after baseline assessment. The randomization will be predetermined, and the allocation will be concealed to the patient only.
Purpose
BASIC SCIENCE
Intervention Model
CROSSOVER
Model Details: This will be a single center, prospective, randomized cross over (On vs OFF) clinical trial
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

April 6, 2026

First Posted

June 9, 2026

Study Start

February 27, 2026

Primary Completion (Estimated)

February 1, 2028

Study Completion (Estimated)

February 1, 2028

Last Updated

June 9, 2026

Record last verified: 2026-06

Data Sharing

IPD Sharing
Will share

All de-identified individual participant data will be shared with colleagues and in a peer review journal once analyzed and ready for publication. Summary results will be shared on ClinicalTrials.gov.

Shared Documents
STUDY PROTOCOL, SAP
Time Frame
Data will be shared once the study is complete and data has been analyzed.

Locations