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rTMS Over the Dorsolateral Prefrontal Cortex for the Treatment of Impulse Control Disorders in Parkinson's Disease

The Effects of High-Frequency Repetitive Transcranial Magnetic Stimulation on Impulse Control Disorders in Parkinson's Disease Patients on Dopamine Replacement Therapy.

Who can join

Ages 18 and older · All sexes

Inclusion Criteria:

* Clinician-confirmed diagnosis of PD
* Ability to provide informed consent, written and verbal
* Clinician-diagnosed impulse control disorder or impulse control behaviors including punding/hobbyism and dopamine dysregulation syndrome
* A Beck Depression Inventory (BDI) (Beck et al., 1961) score of 14 or lower
* A Montreal Cognitive Assessment (MoCA) (Nasreddine et al., 2005) score of 20 or higher
* On dopamine-replacement therapy

Exclusion Criteria:

* History of seizures or epilepsy
* History of brain lesions (such as multiple sclerosis, tumor) reported
* History of vascular issues in the brain, such as stroke
* History of a moderate to severe traumatic brain injury
* Meeting the criteria for a major psychiatric illness such as schizophrenia or depression (BDI score of 14 or higher).
* Having significant cognitive impairment (assessed by MoCA, cutoff score of 20) (Nasreddine, et al., 2005)
* Having had TMS done in the recent past (within a year)
* Pregnancy assessed in female patients
* Intracranial metallic objects (except for dental fillings)
* Current use of substances or medications known to significantly reduce seizure threshold.

About the study

This study's objective is to evaluate the effects of repetitive transcranial magnetic stimulation (rTMS) over the dorsolateral prefrontal cortex (dlPFC) of patients with Parkinson's Disease (PD) who experience impulse control disorders (ICDs) on impulse control symptoms and cognitive behaviors linked to ICDs: reinforcement learning and delay-discounting. This is a randomized sham-controlled cross-over trial. All patients will undergo a session of active rTMS and a session of sham rTMS, with the order of sessions randomized across participants. Following recruitment and eligibility screening, the eligible participants will undergo two sessions of rTMS (active and sham), immediately followed by neurocognitive tasks and questionnaires, no more than 1-2 weeks apart. Each session will have a duration of approximately 1-1.5 hours.

What is being tested

• rTMS Active (device)
• rTMS Sham (device)

Sponsor: West Virginia University · Participants: 20 · Started: May 1, 2024

Contact the study team

• Mariya V Cherkasova, PhD · Phone: 2403673068

Official record on ClinicalTrials.gov — NCT06237868

Locations in the U.S.

Conditions

• Parkinson's Disease

From ClinicalTrials.gov, data retrieved Sep 30, 2026. Each study sets its own eligibility; the study team decides who can join.