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Cerebellar Transcranial Alternating Current Stimulation (tACS) to Modulate Parkinson's Disease Tremor

NCT06993571 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 10

Last updated 2026-05-04

No results posted yet for this study

Summary

Parkinson's disease (PD) is a prevalent neurodegenerative disorder characterized by different motor symptoms, including tremor, which is particularly difficult to manage. Common treatments, such as dopaminergic therapy, can have limitations in efficacy. Recent advancements in non-invasive brain stimulation, specifically phase-adaptive transcranial alternating current stimulation (tACS), offer a promising approach to reduce PD tremor. In the current project, a newly developed closed-loop system delivers precisely synchronized cerebellar tACS by aligning stimulation with the intrinsic hand tremor signal. The study will assess the efficacy of this novel approach to reduce hand tremor in PD patients.

Conditions

  • Parkinson's Disease (PD)
  • Tremor

Interventions

DEVICE

Active-tACS

30 seconds of closed-loop tACS at 2-4 mA, with 6 alternating phase alignments and 1-3 repetitions. Phase alignment is adjusted to the patient's tremor frequency and rhythm in real time. Administered using the neuroConn LOOPIT device and 2 electrodes placed on the cerebellum and jaw, with an area of 5x5 and 5x7 respectively. The stimulation begins with a 3-second ramp-up and ends with a 3-second ramp-down.

DEVICE

Sham-tACS

30 seconds of tACS at 0 mA and 1-3 repetitions. Administered using the neuroConn LOOPIT device and 2 electrodes placed on the cerebellum and jaw, with an area of 5x5 and 5x7 respectively. The sham protocol begins with a 3-second ramp-up and ends with a 3-second ramp-down.

DEVICE

Unlocked-tACS

30 seconds of open-loop tACS at 2-4 mA, with no phase alignments and 1-3 repetitions. Administered using the neuroConn LOOPIT device and 2 electrodes placed on the cerebellum and jaw, with an area of 5x5 and 5x7 respectively. The stimulation begins with a 3-second ramp-up and ends with a 3-second ramp-down.

Sponsors & Collaborators

  • Universitätsklinikum Hamburg-Eppendorf

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
CROSSOVER

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2025-04-16
Primary Completion
2026-09-30
Completion
2026-12-31

Countries

  • Germany

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06993571 on ClinicalTrials.gov