NCT06467695

Brief Summary

The goal of this clinical trial is to determine the relative efficacy of fMRI model guided Transcranial Direct Current Stimulation (mgTDCS) in improving the depressive symptoms of patients with Parkinson's Disease (PD). The main questions it aims to answer are: 1) Can the use of mgTDCS significantly improve the self-reported level of depression and apathy in patients with PD from pre-intervention to post-intervention compared to a sham control? 2) Can the use of mgTDCS significantly normalize the cortical eeg alpha asymmetry so commonly seen in depressed patients compared to sham mgTDCS? 3) Can the use of mgTDCS significantly improve scores on neuropsychological tests of working memory?

Trial Health

65
Monitor

Trial Health Score

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

Enrollment
40

participants targeted

Target at P50-P75 for not_applicable parkinson-disease

Timeline
4mo left

Started Aug 2024

Typical duration for not_applicable parkinson-disease

Status
not yet 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

Study Progress82%
Aug 2024Sep 2026

First Submitted

Initial submission to the registry

May 1, 2024

Completed
2 months until next milestone

First Posted

Study publicly available on registry

June 21, 2024

Completed
1 month until next milestone

Study Start

First participant enrolled

August 1, 2024

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2026

Expected
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

September 28, 2026

Last Updated

June 21, 2024

Status Verified

June 1, 2024

Enrollment Period

2 years

First QC Date

May 1, 2024

Last Update Submit

June 14, 2024

Conditions

Keywords

Direct Transcranial Current Stimulation

Outcome Measures

Primary Outcomes (3)

  • Beck Depression Inventory (BDI) Pre-post change score

    The BDI, a self-report measure for assessing depression, has high internal consistency (Cronbach's alpha \> .90) and good test-retest reliability.

    One at Day 1 and one after 15 sessions of training, typically 4 weeks after study start.

  • Alpha band power pre-post change score

    Alpha band power from pre-post eeg records will be assessed for power changes at frontal sites.

    One at Day 1 and one after 15 sessions of training, typically 4 weeks after study start.

  • RBANS Working Memory

    Digit Span and Story Memory subtests will be used to determine changes in working memory.

    One at Day 1 and one after 15 sessions of training, typically 4 weeks after study start.

Secondary Outcomes (1)

  • PDQ-39

    One at Day 1 and one after 15 sessions of training, typically 4 weeks after study start.

Study Arms (2)

Electrical Stimulation (experimental)

EXPERIMENTAL

Transcranial Direct Current Stimulation will be administered in a high definition anodal montage at 2 milliamps with anode over T3 (adjusted for each participant) and cathode in an equidistance ring around it with 4 return electrodes. There will be 13 minutes of active stimulation followed by a twenty minute delay, followed by 13 minutes of stimulation. Participants in the pilot study will be administered 2 mA of current at a steady state with a 30 second ramp-up and ramp-down period at the beginning and end of each 13 minute stimulation interval.

Device: BIOPAC Stimsola

Sham Stimulation

SHAM COMPARATOR

For the sham TDCS condition, 10 participants will receive receive sham tDCS consisting of 30 seconds of ramp-up and then the amperage will be reduced to 0 for the remainder of the session.

Device: BIOPAC Stimsola Sham (zero amps)

Interventions

Transcranial Electrical Stimulator

Electrical Stimulation (experimental)

Transcranial Electrical Stimulator set to 0 amps

Sham Stimulation

Eligibility Criteria

Age19 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • to 65 years in age.
  • Parkinson's Group must have a physician dx of Parkinson's Disease
  • Must meet exhibit elevated levels of depression on the Beck Depression Inventory (scores of 20 or above).
  • Must be willing and able to travel of the Psychology Department for EEG and tDCS sessions.
  • Participants who have undergone surgery for Deep Brain Stimulation implantation may be enrolled if advised to and monitored by their physician.
  • Read and understand spoken English.

You may not qualify if:

  • No history of or being treated for epilepsy or other seizure disorders.
  • No history of penetrating head wounds or TBI greater than mild TBI.
  • No history of atypical Parkinson's

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (5)

  • Del Felice A, Castiglia L, Formaggio E, Cattelan M, Scarpa B, Manganotti P, Tenconi E, Masiero S. Personalized transcranial alternating current stimulation (tACS) and physical therapy to treat motor and cognitive symptoms in Parkinson's disease: A randomized cross-over trial. Neuroimage Clin. 2019;22:101768. doi: 10.1016/j.nicl.2019.101768. Epub 2019 Mar 18.

    PMID: 30921609BACKGROUND
  • Brak IV, Filimonova E, Zakhariya O, Khasanov R, Stepanyan I. Transcranial Current Stimulation as a Tool of Neuromodulation of Cognitive Functions in Parkinson's Disease. Front Neurosci. 2022 Jul 12;16:781488. doi: 10.3389/fnins.2022.781488. eCollection 2022.

    PMID: 35903808BACKGROUND
  • Broeder S, Vandendoorent B, Hermans P, Nackaerts E, Verheyden G, Meesen R, de Xivry JO, Nieuwboer A. Transcranial direct current stimulation enhances motor learning in Parkinson's disease: a randomized controlled trial. J Neurol. 2023 Jul;270(7):3442-3450. doi: 10.1007/s00415-023-11669-3. Epub 2023 Mar 23.

    PMID: 36952012BACKGROUND
  • Broeder S, Nackaerts E, Heremans E, Vervoort G, Meesen R, Verheyden G, Nieuwboer A. Transcranial direct current stimulation in Parkinson's disease: Neurophysiological mechanisms and behavioral effects. Neurosci Biobehav Rev. 2015 Oct;57:105-17. doi: 10.1016/j.neubiorev.2015.08.010. Epub 2015 Aug 20.

    PMID: 26297812BACKGROUND
  • de Oliveira PCA, de Araujo TAB, Machado DGDS, Rodrigues AC, Bikson M, Andrade SM, Okano AH, Simplicio H, Pegado R, Morya E. Transcranial Direct Current Stimulation on Parkinson's Disease: Systematic Review and Meta-Analysis. Front Neurol. 2022 Jan 10;12:794784. doi: 10.3389/fneur.2021.794784. eCollection 2021.

    PMID: 35082749BACKGROUND

MeSH Terms

Conditions

Parkinson DiseaseDepression

Condition Hierarchy (Ancestors)

Parkinsonian DisordersBasal Ganglia DiseasesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesMovement DisordersSynucleinopathiesNeurodegenerative DiseasesBehavioral SymptomsBehavior

Study Officials

  • John Shelley-Tremblay, PhD

    2514606883

    PRINCIPAL INVESTIGATOR

Central Study Contacts

John F Shelley-Tremblay, PhD

CONTACT

Benjamin D Hill, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Masking Details
Participants will not be told whether they are receiving tDCS or SHAM tDCS in order to reduce subject expectancy bias.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Participants (n = 40) will be either in the Parkinson's Group (n = 20) or the No Parkinson's Control (N = 20). All patients will be randomly assigned to receive either tDCS or SHAM tDCS.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 1, 2024

First Posted

June 21, 2024

Study Start

August 1, 2024

Primary Completion (Estimated)

August 1, 2026

Study Completion (Estimated)

September 28, 2026

Last Updated

June 21, 2024

Record last verified: 2024-06

Data Sharing

IPD Sharing
Will not share