Cerebellar Transcranial Direct Current Stimulation in Parkinson's Disease (cTDCSinPD)

April 21, 2026 updated by: Pierre Cabaraux, Université Libre de Bruxelles

Can Cerebellar Transcranial Direct Current Stimulation be Regarded as a Rational Therapeutic Option for Treating Parkinson's Disease ?

Background & Rationale:

Treatment options for Parkinson's Disease (PD) often face challenges due to the variety of clinical subtypes, differing individual responses, and disease progression. Given its portability, affordability, safety, and ease of use, cerebellar transcranial direct current stimulation (ctDCS) presents as a promising option for home-based treatment with medical telemonitoring in the near future.

Study Procedures:

Participants are invited to complete questionnaires regarding quality of life, anxiety and depression, and symptoms related to their PD.

On the first day, they will be assessed using the Movement Disorder Society - Unified Parkinson's Disease Rating Scale (MDS-UPDRS) Part III for motor impairment and the Cerebellar Cognitive Affective Syndrome scale (CCAS) for cognitive impairment. Participants will then undergo an additional 8 days of at-home cTDCS stimulation. On the 10th day, they will be reassessed using the MDS-UPDRS III and CCAS. One month later, they will complete again the questionnaires regarding quality of life, anxiety, depression, and symptoms related to their PD.

Objective:

Consequently, the primary goal is to investigate the effectiveness of ctDCS in addressing both motor and non-motor symptoms of PD

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Enrolling by invitation

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
25

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Belgium
      • Brussels, Belgium, 1070
        • Hopital Erasme

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Patients with mild to moderate PD MDS-UPDRS part 1III or between 1 and 3 on Hoehn and Yahr score
  • Patients > 18 years of agE
  • Patients who have signed written informed consent

Exclusion Criteria:

  • Pregnant women
  • Patients ≤ 18 years of age
  • Presence of intracranial metallic hardware (e.g., vascular clips, orthopedic material)
  • Presence of an implanted electronic device (e.g., pacemaker, cochlear implants, deep brain stimulator)
  • History of epileptic seizures
  • Active or past neurological condition affecting upper limb control (e.g., stroke, degenerative disease, tumor, traumatic sequelae), or any neuromuscular (e.g., upper limb polyneuropathy, myopathy) or orthopedic condition impairing upper limb motor control
  • Subject unable to understand or perform the required motor tasks
  • Psychotropic polypharmacy (regular use of neuroleptics, anti-epileptics, benzodiazepines, etc.)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: anodal cTDCS group
Device: cTDCS
anodal cTDCS
Device: cTDCS
cathodal cTDCS
Active Comparator: cathodal cTDCS group
Device: cTDCS
anodal cTDCS
Device: cTDCS
cathodal cTDCS

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
MDS-UPDRS (Unit on a scale)
Time Frame: day 1 to day 10 (MDS-UPDRS III) day 1 to day 40 (MDS-UPDRS Part I, II and IV)
MDS-UPDRS Part III MDS-UPDRS Part I, II and IV
day 1 to day 10 (MDS-UPDRS III) day 1 to day 40 (MDS-UPDRS Part I, II and IV)
CCAS (Unit on a scale)
Time Frame: day 1 and day 10
CCAS scale
day 1 and day 10

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Feasibility and tolerability of ctDCS (Unit on a scale)
Time Frame: from day 1 to day 10
participant-reported outcomes regarding the ease of self-administration and the presence of side effects are collected through a dedicated questionnaire.
from day 1 to day 10
Scale evaluation anxiety (Unit on a scale)
Time Frame: day 1 and day 40
anxiety as evaluated by Generalized Anxiety Disorder-7 (GAD-7)
day 1 and day 40
Scale evaluating depression (Unit on a scale)
Time Frame: day 1 and day 40
depression as evaluated by Patient Health Questionnaire-9 (PHQ-9 )
day 1 and day 40
Quality of life (Unit on a scale)
Time Frame: day 1 and day 40
quality of life as evaluated by Parkinson's Disease Questionnaire-39 (PDQ-39)
day 1 and day 40
Scale evaluation anxiety (Unit on a scale)
Time Frame: day 1 and day 40
anxiety as evaluated by Beck Anxiety Inventory (BAI)
day 1 and day 40
Scale evaluating depression (Unit on a scale)
Time Frame: day 1 and day 40
depression as evaluated by Beck Depression Inventory (BDI)
day 1 and day 40
Quality of life (Unit on a scale)
Time Frame: day 1 and day 40
quality of life as evaluated by European Quality of Life 5 Dimensions (EQ-5D)
day 1 and day 40

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Université Libre de Bruxelles

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Fonds de la Recherche Scientifique (fnrs)

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
September 24, 2025

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
November 1, 2026

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
November 1, 2026

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
April 1, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 21, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
April 23, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
April 23, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 21, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
April 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • B40620224000258 ; P2024/328

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

anonymous.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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