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Single-Center, Double-Blind, Randomized, Placebo-Controlled Study on Efficacy and Safety of rTMS (With Precise Localization) in Relieving Motor Symptoms of TD

NCT07173920 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 62

Last updated 2025-12-05

No results posted yet for this study

Summary

\# Brief Summary (English Version) Tardive Dyskinesia (TD) is a hyperkinetic movement disorder induced by long-term use of dopamine receptor blockers and related drugs. Characterized by involuntary spasms or choreiform movements involving the tongue, lower face, jaw, and limbs (persisting for at least several weeks), TD causes irreversible neurological damage that persists even after discontinuing the causative drugs, significantly impairing patients' functional outcomes.

rTMS is a non-invasive neuromodulation technique: time-varying currents in a coil generate magnetic fields that penetrate the scalp and skull to act on brain neurons, inducing depolarization, neural network activation, neurotransmitter release, metabolic changes, and gene expression, thereby producing physiological effects \[9\]. In recent years, rTMS has gained attention for treating movement disorders (e.g., Parkinson's disease, motor neuron disease, dystonia, essential tremor, Huntington's disease) due to its non-invasiveness, high safety, and repeatability. Studies have reported that rTMS can significantly improve motor symptoms in TD patients \[10, 11\]; however, existing research is limited by small sample sizes, conventional treatment parameters, large inter-individual variability, and unclear long-term efficacy.

rTMS efficacy in TD is strongly influenced by parameters including stimulation targets, localization methods, sequences, and cycles. Optical navigation (using personalized MRI) is the most accurate and yields the best therapeutic effects, compared to manual localization or positioning caps . Regarding stimulation sequences, 1Hz and 20Hz rTMS have shown efficacy but with short-lived effects. Continuous theta-Burst Stimulation (cTBS)-a specialized rTMS mode that delivers rapid pulse trains mimicking endogenous theta-wave bursts-provides higher therapeutic doses in less time, enabling more durable efficacy and effectively reducing motor cortex excitability .

Therefore, this study aims to investigate the effect of cTBS (under precise localization) on improving motor symptoms in patients with TD.

Conditions

  • Tardive Dyskinesia
  • Repetitive Transcranial Magnetic Stimulation

Interventions

DEVICE

repetitive Transcranial Magnetic Stimulation

Patients will receive rTMS treatment for a total of 14 days. Prior to treatment, patients will undergo an MRI scan; the images will be preprocessed to construct a structural network, and precise localization of the pre-SMA (preSupplementary Motor Area) region and the SCAN (Somatosensory-Cognitive-Action Network) will be performed based on coordinates.

Sponsors & Collaborators

  • Peking University Sixth Hospital

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2025-09-08
Primary Completion
2027-12-30
Completion
2028-12-30

Countries

  • China

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 NCT07173920 on ClinicalTrials.gov