Using brain stimulation to reduce tremors in Parkinson's disease

Closed-loop Phase-adaptive Cerebellar Transcranial Alternating Current Stimulation (tACS) to Modulate Activity in the Cerebello-thalamo-cortical Network to Reduce Parkinson's Disease Tremor

NA · Universitätsklinikum Hamburg-Eppendorf · NCT06993571

This study is testing a new brain stimulation technique to see if it can help reduce hand tremors in people with Parkinson's disease.

Quick facts

PhaseNA
Study typeInterventional
Enrollment10 (estimated)
Ages18 Years and up
SexAll
SponsorUniversitätsklinikum Hamburg-Eppendorf (other)
Locations1 site (Hamburg, Free and Hanseatic City of Hamburg)
Trial IDNCT06993571 on ClinicalTrials.gov

What this trial studies

This study investigates the use of cerebellar transcranial alternating current stimulation (tACS) to modulate hand tremors in patients with Parkinson's disease. It employs a closed-loop system that synchronizes stimulation with the patient's intrinsic tremor signal, aiming to reduce tremor severity. The study will compare the effects of active tACS against sham and unlocked tACS treatments to evaluate efficacy. By targeting the cortico-thalamo-cortical network, this approach seeks to address the underlying neurophysiological mechanisms of tremor.

Who should consider this trial

Good fit: Ideal candidates include individuals diagnosed with Parkinson's disease who experience moderate to severe hand tremors.

Not a fit: Patients with other neurological disorders, heart pacemakers, or those who are pregnant may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could provide a non-invasive treatment option for managing hand tremors in Parkinson's disease patients.

How similar studies have performed: While non-invasive brain stimulation techniques have shown promise in other studies, this specific approach using phase-adaptive tACS is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Clinical diagnosis of Parkinson's disease based on UK Brain Bank criteria
* Patient exhibiting moderate to severe hand tremor
* Provision written informed consent by the patient

Exclusion Criteria:

* History of other neurological disorders such as vascular malformations, ischemic or haemorrhagic stroke, cerebral neoplasia, epilepsy, or major psychiatric illness
* Existence of heart pacemaker or metal implants in the body
* Pregnancy

Where this trial is running

Hamburg, Free and Hanseatic City of Hamburg

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Parkinson's Disease, Tremor, Parkinson's disease, Hand tremor, Transcranial alternating current stimulation, Non-invasive brain stimulation, Closed-loop stimulation, Phase-adaptive stimulation

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.