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The Use of Dual-coil Transcranial Magnetic Stimulation to Measure and Modulate Poststroke Interhemispheric Inhibition.

NCT07431749 · Status: NOT_YET_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 20

Last updated 2026-02-25

No results posted yet for this study

Summary

Objectives: This project will (1) establish the test-retest reliability of a novel transcranial magnetic stimulation-electroencephalography (TMS-EEG) interhemispheric inhibition (IHI) measure and (2) validate it against the TMS-EMG-based IHI measure (the gold standard). It will also (3) compare effects of dual-coil cortico-cortical paired associative stimulation (ccPAS) protocols with different interstimulus intervals (ISI) on this TMS-EEG-based IHI marker in poststroke patients. Methods: Study 1: IHI will be conducted in 20 stroke patients and 20 healthy counterparts using TMS-EEG and TMS-EMG; furthermore, both measures will be repeated after one week for test-retest reliability. Study 2: A randomized-crossover trial where 20 stroke patients undergo a single-session ccPAS in three separate visits (ISI: 8ms: LTD-like, 12ms: LTP-like, 100ms: sham) to investigate the differential modulatory effects in IHI.

Conditions

  • Cortico-cortical Paired Associative Stimulation

Interventions

DEVICE

Dual coil transcranial magnetic stimulation

The ccPAS will be applied using a MagPro X100/R30 stimulator and a MagPro R20/R30 extension connected to two vertically oriented figure-of-eight coils designed for bilateral hemispheric stimulation.

Sponsors & Collaborators

  • The Hong Kong Polytechnic University

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
CROSSOVER

Eligibility

Min Age
40 Years
Max Age
80 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2026-03-15
Primary Completion
2028-12-31
Completion
2029-06-01

Countries

  • Hong Kong

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 NCT07431749 on ClinicalTrials.gov