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Local Field Potential Correlates of Neuropsychiatric Symptoms in Parkinson's Disease (LFP-in-PD)

2. juni 2026 opdateret af: King's College London

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.

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Undersøgelsestype

Observationel

Tilmelding (Anslået)

20

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Studiesteder

  • Det Forenede Kongerige
    • England
      • London, England, Det Forenede Kongerige, WC2R 2LS
        • King's College London
        • Kontakt:
          • Research Governance Office of King's College London
          • Telefonnummer: +4402078365454
          • E-mail: rgo@kcl.ac.uk
  • Kina
      • Shanghai, Kina

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

Adults with Parkinson's disease and co-occurring neuropsychiatric symptoms, including hallucinations, impulse control disorder, or episodic anxiety, who previously underwent bilateral Deep Brain Stimulation implantation with a Medtronic Percept device as part of routine clinical care at King's College Hospital or affiliated services.

Beskrivelse

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

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

Kohorter og interventioner

Gruppe / kohorte
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.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Identification of Local Field Potential Correlates of Neuropsychiatric Symptoms in Parkinson's Disease
Tidsramme: Baseline through Day 120
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.
Baseline through Day 120

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Temporal Dynamics of Neuropsychiatric Symptoms
Tidsramme: Baseline through Day 120
Characterisation of the frequency, timing, and temporal patterns of participant-reported neuropsychiatric symptom events recorded using the Medtronic Percept device event-marking function.
Baseline through Day 120
Association Between LFP Features and Behavioural Task Performance
Tidsramme: Baseline assessment at Day 0
Association between Local Field Potential (LFP) features and performance on reward-processing behavioural tasks, including the Monetary Incentive Delay task and Apple Gathering Task.
Baseline assessment at Day 0
Association Between LFP Features and Clinical Symptom Severity Measures
Tidsramme: Baseline assessment at Day 0
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).
Baseline assessment at Day 0

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

King's College London

Samarbejdspartnere

Ruijin Hospital

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Anslået)

1. juni 2026

Primær færdiggørelse (Anslået)

1. januar 2028

Studieafslutning (Anslået)

1. februar 2028

Datoer for studieregistrering

Først indsendt

28. maj 2026

Først indsendt, der opfyldte QC-kriterier

2. juni 2026

Først opslået (Faktiske)

8. juni 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

8. juni 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

2. juni 2026

Sidst verificeret

1. maj 2026

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • LFP-in-PD-333102

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

JA

IPD-planbeskrivelse

Individual participant data that underlie the results reported in publications may be shared in anonymised form with qualified researchers upon reasonable request and subject to applicable ethical and institutional approvals. Data sharing will comply with participant consent, data protection regulations, and institutional policies.

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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Kliniske forsøg med PARKINSON SYGGE (lidelse)

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Sponsorer og samarbejdspartnere

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Betingelser

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Kosttilskud

Sponsor / samarbejdspartnere

Placeringer

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