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Aftereffects of PES Preconditioned with RTMS on the Human Pharyngeal Motor Cortex

StatusUnknown
PhaseNot applicable
Started
View on ClinicalTrials.gov ↗
Record status
This record was last updated March 19, 2025 (before its estimated August 31, 2025 completion). Its status may not reflect the trial's current state.

Record History

  1. Changed Registry marked status Unknown (sponsor has not verified the record since Sep 2024); last known: Recruiting
  2. Study First Submitted
  • Stopped: an ongoing trial was terminated, suspended or withdrawn.
  • Notable: the trial’s plan changed such as a big move in its timeline or size, a new primary endpoint, sponsor or phase, or recruiting opened or resumed.
  • Minor: routine progress and housekeeping, such as sites added or enrollment closed.
The goal of this interventional study is to optimize the excitatory brain effects of combined neuromodulatory therapies on swallowing areas of the brain. The main question it aims to answer is: Does preconditioning with 1 Hertz (Hz) repetitive transcranial magnetic stimulation (rTMS) delivered over hemispheric pharyngeal areas enhance the activating effects of pharyngeal electrical stimulation (PES) on cortical excitability? Participants will: * Visit the department three times, with at least a one-week gap between visits. * Undergo baseline measurements for Pharyngeal motor evoked potential (PMEP) and Thenar motor evoked potential (TMEP), involving an electromyography (EMG) pharyngeal catheter inserted into the pharynx and gel electrodes to detect muscle activity. * Be randomly allocated to one of the three preconditioning-conditioning procedures during each visit : 1Hz rTMS followed by 5Hz PES, sham 1Hz rTMS followed by 5Hz PES, and 1Hz rTMS followed by sham 5Hz PES 1. Real rTMS will involve a figure-of-eight coil flat against the head delivering 1Hz stimulation at 90% of the thenar resting motor threshold. 2. Sham rTMS will involve holding the coil perpendicular to the scalp to prevent brain stimulation. 3. PES will involve a catheter delivering 0.2-ms pulses at 5Hz and 75% of the maximal tolerated intensity for 10 minutes. Sham PES will involve deactivating the current generator. * Complete PMEP and TMEP measurements at baseline before intervention and every 15 minutes from 0 - 60 minutes after the rTMS-PES procedure. * Complete a survey regarding tolerability and safety at the end of each visit.
Trial Details
NCT Number NCT06884488
Lead Sponsor University of Manchester
Conditions
(from sponsor)		 Healthy Subjects (HS)
Enrollment 14 participants
Start Date
Primary Completion (estimated)
Study Completion (estimated)
Updated on ClinicalTrials.gov