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Local Field Potential Correlates of Neuropsychiatric Symptoms in Parkinson's Disease (LFP-in-PD)
Intracranial Local Field Potential (LFP) Correlates of Neuropsychiatric Symptoms in Parkinson's Disease
This prospective observational cohort study aims to investigate whether intracranial Local Field Potentials (LFPs) recorded from implanted Deep Brain Stimulation (DBS) devices are associated with neuropsychiatric symptoms in people with Parkinson's disease (PD). The study will focus on paroxysmal anxiety, impulse control disorders, and hallucinations.
Twenty participants with Parkinson's disease and an implanted Medtronic Percept DBS device will be recruited. Participants will complete behavioural and clinical assessments and will use the event-marking functionality of the DBS device to record symptom episodes over a monitoring period of approximately 120 days. Brain activity will be passively recorded during this period.
The study will evaluate relationships between LFP signals, symptom occurrence, behavioural task performance, and clinical symptom severity measures. Machine learning approaches will be used to identify electrophysiological patterns associated with neuropsychiatric symptom states at an individual level.
The findings may improve understanding of the neural mechanisms underlying neuropsychiatric symptoms in Parkinson's disease and support the future development of personalised adaptive neuromodulation approaches.
Studie Overzicht
Toestand
Conditie
Studietype
Inschrijving (Geschat)
Contacten en locaties
Studiecontact
- Naam: Paul Shotbolt, PhD
- Telefoonnummer: +4402078365454
- E-mail: paul.shotbolt@kcl.ac.uk
Studie Locaties
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Shanghai, China
- Ruijin Hospital
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Contact:
- Li
- Telefoonnummer: 021-64370045
- E-mail: ldy11483@rjh.com.cn
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England
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London, England, Verenigd Koninkrijk, WC2R 2LS
- King's College London
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Contact:
- Research Governance Office of King's College London
- Telefoonnummer: +4402078365454
- E-mail: rgo@kcl.ac.uk
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
- Volwassen
- Oudere volwassene
Accepteert gezonde vrijwilligers
Bemonsteringsmethode
Studie Bevolking
Beschrijving
Inclusion Criteria:
- Age ≥ 18 years
- A diagnosis of Parkinson's Disease
- A diagnosis of hallucinations, impulse control disorder, or panic disorder (episodic anxiety)
- Previous bilateral DBS implantation with a Medtronic Percept device as part of clinical care
Exclusion Criteria:
- Non-English speakers
- <18 years old or >75 years old
- A history of concurrent conditions that could significantly confound the study results, such as other significant neurological condition (e.g., brain injury/infection, substance abuse) or concurrent severe psychiatric condition (e.g., schizophrenia)
- Moderate/severe Intellectual Disability or inability to understand study procedures
- Lack of capacity to consent to the study
- Currently involvement in other studies
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
Cohorten en interventies
Groep / Cohort |
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Parkinson's Disease Participants With Neuropsychiatric Symptoms and DBS
Participants with Parkinson's disease and co-occurring neuropsychiatric symptoms, including hallucinations, impulse control disorder, or episodic anxiety, who have previously undergone bilateral Deep Brain Stimulation implantation with a Medtronic Percept device as part of clinical care.
Participants will undergo clinical and behavioural assessments and longitudinal passive recording of intracranial Local Field Potentials (LFPs) over approximately 120 days.
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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
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Identification of Local Field Potential Correlates of Neuropsychiatric Symptoms in Parkinson's Disease
Tijdsspanne: Baseline through Day 120
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Association between intracranial Local Field Potential (LFP) recordings from the Medtronic Percept Deep Brain Stimulation device and participant-reported neuropsychiatric symptom events, including hallucinations, impulse control symptoms, and episodic anxiety.
Machine learning approaches will be used to identify electrophysiological patterns associated with symptom states.
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Baseline through Day 120
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Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
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Temporal Dynamics of Neuropsychiatric Symptoms
Tijdsspanne: Baseline through Day 120
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Characterisation of the frequency, timing, and temporal patterns of participant-reported neuropsychiatric symptom events recorded using the Medtronic Percept device event-marking function.
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Baseline through Day 120
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Association Between LFP Features and Behavioural Task Performance
Tijdsspanne: Baseline assessment at Day 0
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Association between Local Field Potential (LFP) features and performance on reward-processing behavioural tasks, including the Monetary Incentive Delay task and Apple Gathering Task.
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Baseline assessment at Day 0
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Association Between LFP Features and Clinical Symptom Severity Measures
Tijdsspanne: Baseline assessment at Day 0
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Association between Local Field Potential (LFP) features and validated clinical symptom severity scales, including the Neuropsychiatric Inventory (NPI), Questionnaire for Impulsive-Compulsive Disorders in Parkinson's Disease Rating Scale (QUIP-RS), and Parkinson Anxiety Scale (PAS).
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Baseline assessment at Day 0
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Medewerkers en onderzoekers
Sponsor
Medewerkers
Studie record data
Bestudeer belangrijke data
Studie start (Geschat)
Primaire voltooiing (Geschat)
Studie voltooiing (Geschat)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Werkelijk)
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- LFP-in-PD-333102
Plan Individuele Deelnemersgegevens (IPD)
Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?
Beschrijving IPD-plan
Informatie over medicijnen en apparaten, studiedocumenten
Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel
Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct
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