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Genotypiske påvirkninger på netværksprogression ved Parkinsons sygdom

30. oktober 2026 opdateret af: David Eidelberg, Northwell Health

In this longitudinal study, the investigators will follow Parkinson's disease (PD) patients with and without glucocerebrosidase (GBA) mutations. The investigators hypothesize that the rate of increase in brain network activity over time (network progression rate) is faster in patients with GBA gene mutations.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Parkinson's disease (PD) patients with mutations in the glucocerebrosidase gene (GBA) tend to have a more aggressive disease course. GBA may therefore provide a target for disease modifying therapies in mutation carriers. Using positron emission tomography (PET) and magnetic resonance imaging (MRI) brain imaging to measure network progression rates in mutation carriers will allow for the assessment of the potential disease modifying effects of new anti-GBA therapies.

The investigators will also determine whether magnetic resonance imaging (MRI) network methods, which are less invasive and more broadly available than positron emission tomography (PET), produce comparable network progression measurements in individual patients. These determinations will be critical for the design of clinical trials of new disease-modifying drugs.

Undersøgelsestype

Observationel

Tilmelding (Faktiske)

17

Kontakter og lokationer

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

Studiesteder

    • New York
      • Manhasset, New York, Forenede Stater, 11030
        • Feinstein Institutes for Medical Research

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

40 år til 75 år (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

Study population will be recruited through local movement disorders centers in the tri-state area, prior PD studies, The Michael J. Fox Trial Finder, community outreach

Beskrivelse

Inclusion Criteria:

  • Diagnosis of PD made according to United Kingdom (UK) Parkinson's Disease Society Brain Bank Criteria
  • Ability to provide written informed consent
  • Age 40-75
  • Stable dose of antiparkinsonian medication for >1 month prior to study entry

Exclusion Criteria:

  • Subjects with pathogenic mutations in LRRK2 related PD mutations (subjects with variants of uncertain significance (VUS) are eligible
  • History of known causative factors such as encephalitis or neuroleptic treatment
  • Patients with dementia (defined as Mini-Mental Status Exam score <24 or a Telephone Interview for Cognitive Status score <26)
  • Atypical parkinsonian features including oculomotor abnormalities, incontinence, ataxia, sensory loss, or pyramidal signs
  • Known structural brain lesions
  • Patients with history of stroke, head injury, high intracranial pressure or severe headaches
  • Psychiatric disorder, including a history of major depression in the past 36 months
  • Pregnant or breastfeeding women (female subjects of child-bearing potential will be screened for pregnancy before imaging).

Studieplan

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

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Observationsmodeller: CASE_CONTROL
  • Tidsperspektiver: PROSPECTIVE

Kohorter og interventioner

Gruppe / kohorte
Intervention / Behandling
Parkinson's disease (PD) glucocerebrosidase (GBA) carriers

Parkinson's disease subjects with GBA mutation

Subjects will be tested for GBA and LRRK2 mutation status at baseline.

18F-Fluoro-2-deoxy-glucose (FDG) PET scan is a nuclear medicine test that measures glucose metabolism (energy) in your brain at baseline and 18 months later.

Magnetic Resonance Imaging (MRI) is a noninvasive scan which produces detailed pictures of the brain using a magnetic field. In addition, a special type of MRI, called resting state functional MRI (rs-fMRI), will measure and map brain activity. Conducted at baseline and 18 months later.

Investigator will evaluate subjects according to the Movement Disorder Society-Unified Parkinson's Disease Rating Scale (MDS-UPDRS), the standard clinical tool used to measure the severity and progression of PD. Neuropsychological evaluation will assess how one's brain functions (via pencil and paper testing), which indirectly yields information about the structural and functional integrity of the brain. Conducted at baseline and 18 months later.

Parkinson's disease (PD) non glucocerebrosidase (GBA) carriers

Parkinson's disease subjects without GBA mutation

Subjects will be tested for GBA and LRRK2 mutation status at baseline.

18F-Fluoro-2-deoxy-glucose (FDG) PET scan is a nuclear medicine test that measures glucose metabolism (energy) in your brain at baseline and 18 months later.

Magnetic Resonance Imaging (MRI) is a noninvasive scan which produces detailed pictures of the brain using a magnetic field. In addition, a special type of MRI, called resting state functional MRI (rs-fMRI), will measure and map brain activity. Conducted at baseline and 18 months later.

Investigator will evaluate subjects according to the Movement Disorder Society-Unified Parkinson's Disease Rating Scale (MDS-UPDRS), the standard clinical tool used to measure the severity and progression of PD. Neuropsychological evaluation will assess how one's brain functions (via pencil and paper testing), which indirectly yields information about the structural and functional integrity of the brain. Conducted at baseline and 18 months later.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Increase in PD related metabolic pattern expression
Tidsramme: Baseline and 18 months later

Changes in PD related and PD cognition related pattern expression in 18F-2-fluoro-2-deoxy-D-glucose (FDG) PET scans

Baseline and 18 months later
Increase in PD related functional pattern expression
Tidsramme: Baseline and 18 months later

Changes in PD related and PD cognition related pattern expression in resting state functional magnetic resonance imaging (rs-fMRI)

Baseline and 18 months later

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Change in motor function
Tidsramme: Baseline and 18 months later

Change in motor function assessed with Movement Disorder Society Unified Parkinson's Disease Rating Scale (MDS-UPDRS) III (The sum score ranges between 0-132 points. Higher scores indicate more severe impairment)

Baseline and 18 months later
Change in cognitive function
Tidsramme: Baseline and 18 months later

Change in cognitive function assessed with neuropsychological testing

Baseline and 18 months later

Samarbejdspartnere og efterforskere

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

Sponsor

Samarbejdspartnere

Efterforskere

  • Ledende efterforsker: David Eidelberg, MD, Head, Center for Neurosciences

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

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 (Faktiske)

24. februar 2020

Primær færdiggørelse (Faktiske)

7. marts 2026

Studieafslutning (Faktiske)

7. marts 2026

Datoer for studieregistrering

Først indsendt

7. januar 2020

Først indsendt, der opfyldte QC-kriterier

10. januar 2020

Først opslået (Faktiske)

14. januar 2020

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

3. november 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

30. oktober 2026

Sidst verificeret

1. oktober 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • MJFF grant 16325

Plan for individuelle deltagerdata (IPD)

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INGEN

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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