NCT06399731

Brief Summary

This cross-over pilot study aims to study the acceptability of two methods of non-invasive brain stimulation for the treatment of Parkinson's disease mild cognitive impairment (PD-MCI) - repetitive transcranial magnetic stimulation (rTMS) and transcranial direct current stimulation (tDCS) targeted at the left dorsolateral prefrontal cortex (DLPFC). Twenty participants will undergo both interventions in a cross-over design. They sequentially undergo four consecutive phases (4 weeks each), 1) no-intervention baseline, 2) rTMS ór tDCS, 3) no-intervention, 4) second intervention. The primary outcome measure will be acceptability of the interventions, and secondary outcomes include feasibility, cognitive function, neuropsychiatric symptoms, motor function. We will use MRI to explore personalized targeting.

Trial Health

57
Monitor

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
20

participants targeted

Target at P25-P50 for not_applicable parkinson-disease

Timeline
Completed

Started May 2024

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

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 1, 2024

Completed
5 days until next milestone

First Posted

Study publicly available on registry

May 6, 2024

Completed
25 days until next milestone

Study Start

First participant enrolled

May 31, 2024

Completed
1.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2025

Completed
5 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2026

Completed
Last Updated

July 16, 2024

Status Verified

July 1, 2024

Enrollment Period

1.5 years

First QC Date

May 1, 2024

Last Update Submit

July 12, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Quantative acceptability of the interventions (measured seperately)

    Measured with Theoretical Framework of Acceptability questionnaire ("TFA-PD questionnaire") score, measuring seven domains of acceptability

    Eight weeks and sixteen weeks (after first and second intervention)

Secondary Outcomes (21)

  • Qualitative acceptability assessment of both interventions

    After study termination (i.e., all participants finished)

  • Intervention compliance (feasibility)

    Eight weeks and sixteen weeks (during first and second intervention)

  • Intervention attrition (feasibility)

    After study termination (i.e., all participants finished)

  • Usability of the tDCS device (feasibility)

    Eight weeks or sixteen weeks (after tDCS intervention)

  • Subjective cognitive function

    Four, eight, twelve and sixteen weeks

  • +16 more secondary outcomes

Other Outcomes (17)

  • Structural and functional connectivity

    Baseline

  • Distance to optimal DLPFC stimulation target

    Baseline

  • Age

    Baseline

  • +14 more other outcomes

Study Arms (2)

Intervention arm 1: rTMS followed by tDCS

EXPERIMENTAL

Participants in intervention arm 1 will undergo four phases in the following order: 1) a no-intervention baseline phase, 2) 12 sessions of 20-minute institute-based repetitive transcranial magnetic stimulation (rTMS) (10 Hz) targeting the left DLPFC, 3) a second no-intervention baseline phase, 4) 20 sessions of 20-minute at-home anodal high-definition transcranial direct current stimulation (tDCS) targeting the left DLPFC. All phases have a duration of 4 weeks.

Device: High-frequency (10Hz) rTMSDevice: Anodal tDCS

Intervention arm 2: tDCS followed by rTMS

EXPERIMENTAL

Participants in intervention arm 2 will undergo four phases in the following order: 1) a no-intervention baseline phase, 2) 20 sessions of 20-minute at-home anodal high-definition transcranial direct current stimulation (tDCS) targeting the left DLPFC, 3) a second no-intervention baseline phase, 4) 12 sessions of 20-minute institute-based repetitive transcranial magnetic stimulation (rTMS) (10 Hz) targeting the left DLPFC. All phases have a duration of 4 weeks.

Device: High-frequency (10Hz) rTMSDevice: Anodal tDCS

Interventions

High-frequency (10 Hz) rTMS targeting the left DLPFC, based on fMRI-peak activation during performance of the Tower of London task, at 110% resting motor threshold intensity, corrected for scalp-cortex distance at the target location, for a total of 3000 pulses per session, using 30 trains of 10 seconds with 30-second inter-train intervals (total duration: 20 minutes), using neuronavigation to record the pulse location.

Intervention arm 1: rTMS followed by tDCSIntervention arm 2: tDCS followed by rTMS

Anodal high-definition tDCS. The anode will be placed at the F3 EEG location, coordinates registered using neuronavigation on the first intervention session on-site, and cathodes at Fp1, Fz, C3 and F7, in a ring surrounding the anode, using π cm2 circular stimulation electrodes, stimulating the left DLPFC at 2 mA intensity for a duration of 20 minutes, 15 s ramp up and 15 s ramp down. After an initial on-site instructional tDCS session, the tDCS intervention will be delivered at home, in part remotely-supervised via MS Teams.

Intervention arm 1: rTMS followed by tDCSIntervention arm 2: tDCS followed by rTMS

Eligibility Criteria

Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Clinical diagnosis of Parkinson's disease, diagnosed by a neurologist;
  • Mild to moderate disease stage (Hoehn \& Yahr disease stage \< 4);
  • Movement Disorders Society level I criteria for PD-MCI (Litvan et al., 2012):
  • Montreal Cognitive Assessment score range \[21-25\] (Dalrymple-Alford et al., 2010), or
  • performance 1-2 SD below appropriate norms on at least 2 neuropsychological tests, or
  • classification of PD-MCI based on recent (\< 6 months previous to participation) neuropsychological assessment taken elsewhere (report will be requested);- In case of (dopaminergic) medication use, participants are on stable medication for at least one month before participation and expect to remain on stable medication during the study

You may not qualify if:

  • Indication for dementia based on the SAGE (cut-off ≤ 14; Scharre et al., 2010);
  • Severe depressive disorder (Beck Depression Inventory - Ib score \> 18);
  • Psychotic disorder (except for benign hallucinations with insight), screened with the Scale for Assessment of Positive Symptoms for Parkinson's disease;
  • Indication of alcohol or drug abuse;
  • Contra-indication for rTMS according to Magstim Rapid2 Manual; rTMS should not be:
  • used on or in the vicinity of patients or users with cardiac demand pacemakers, implanted medication pumps, cochlear devices, implanted defibrillators and/or implanted neurostimulators
  • used on or in the vicinity of patients with implanted metal objects• used on patients where the skin in the area to be contacted is broken
  • used on those with large ischaemic scars
  • used on pregnant women
  • used on infants under the age of 2 years
  • used on epileptic individuals
  • used on those with a family history of convulsions
  • used on individuals with brain lesions that could affect seizure threshold
  • used on individuals suffering from multiple sclerosis
  • used on individuals taking tricyclic antidepressants, neuroleptic agents or any other drug that could lower seizure threshold,
  • +31 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Amsterdam UMC

Amsterdam, North Holland, Netherlands

RECRUITING

MeSH Terms

Conditions

Parkinson DiseaseCognitive Dysfunction

Interventions

Transcranial Magnetic StimulationTranscranial Direct Current Stimulation

Condition Hierarchy (Ancestors)

Parkinsonian DisordersBasal Ganglia DiseasesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesMovement DisordersSynucleinopathiesNeurodegenerative DiseasesCognition DisordersNeurocognitive DisordersMental Disorders

Intervention Hierarchy (Ancestors)

Magnetic Field TherapyTherapeuticsElectric Stimulation TherapyConvulsive TherapyPsychiatric Somatic TherapiesBehavioral Disciplines and ActivitiesElectroshockPsychological Techniques

Central Study Contacts

Tim D van Balkom, PhD

CONTACT

Chris Vriend, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
CROSSOVER
Model Details: Four consecutive phases: 1) a no-intervention baseline phase, 2) rTMS or tDCS, 3) a second no-intervention baseline phase, 4) the second NIBS intervention. All phases have a duration of 4 weeks and the order of the NIBS interventions is counterbalanced.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Post-doctoral researcher

Study Record Dates

First Submitted

May 1, 2024

First Posted

May 6, 2024

Study Start

May 31, 2024

Primary Completion

December 1, 2025

Study Completion

May 1, 2026

Last Updated

July 16, 2024

Record last verified: 2024-07

Data Sharing

IPD Sharing
Will share

We will commit to adhere to the findability, accessibility, interoperability and re-usability (FAIR) of the data collected during this study by publishing and sharing coded data and analysis code on online repositories to the limits of Dutch GDP regulations.

Shared Documents
STUDY PROTOCOL, ANALYTIC CODE
Time Frame
Anonymized data will be made available after full data collection has finished, when first data cleaning has been performed and the primary endpoint analyses have been performed.
Access Criteria
A data sharing agreement or equivalent will be set up.

Locations