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Brain stimulation for swallowing difficulties

Researchers are testing electrical stimulation through the scalp alongside usual swallowing treatment in Parkinson's.

Testing a treatment or activity · Study reference: IRCT20190412043248N1

Plain-language introduction written with AI from the registry; not independently checked by a clinician. Read the original details below ↓

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Start (reported date)
2019-05-22

Planned dates can move. A study finishing does not tell us when a paper will be published.

No results summary has been confirmed in the registry records we imported. See connected papers below; we keep checking after recruitment ends.

Changes we have recorded
  • 2026-10-11 — recruiting

These are dates we observed a change, not necessarily the dates it happened.

Papers connected to this study

No connected paper has been found yet. The tracker checks the growing library for study identifiers and registry-linked publications.

Who can join?

Age 18 years and over · Ask the team who can join

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Read all the rules for taking part

Sex eligibility reported by registry: both

Inclusion criteria: Parkinson's disease with swallowing disorder Not having an implants Being patient in the On phase Age over 18 years Not having a history of dysphagia Non-pregnancy of subjects Exclusion criteria: The occurrence of any other neurological disorder (such as stroke, seizure, epilepsy, etc.) during the conduct of the research After the study begins, the implant needs to be used Do not cooperate Getting pregnant
Full study name & original research details

Official study title

The effectiveness of combined transcranial Direct Current Stimulation (tDCS) and conventional swallowing therapy on improvement of the swallowing disorder in persons with Parkinson’s disease

Short title used by the registry

Effect of brain stimulation on the improvement of swallowing disorder in Parkinson's patients

Original description

Intervention: Intervention 1: Combined treatment group: Patients in this group receive anodal stimulation of tDCS with conventional treatment for 30 minutes. The anodal-tDCS with a 1 mA intensity is inserted bilaterally into the pharyngeal motor cortex in the left and right hemisphere. Conventional swallowing treatment is a protocol of rehabilitation and compensatory treatments. This protocol will be obtained according to the clinical evaluation results of swallowing. Rehabilitation treatment includes swallowing maneuvers (Mendelsohn maneuver, supraglottic swallowing maneuver, super-supraglottic swallowing maneuver, and effortful swallow ), oral-motor exercises, and Thermal-tactile stimulation. Compensatory methods will also include adjusting the volume, velocity, and speed of food delivery and postural techniques. Intervention 2: sham treatment group: In the sham-tDCS group, patients first receive tDCS stimulation for 30 seconds with an intensity of 1mA intensity, and after 30 seconds the stimulation stops and the device turns off without informing the patient. The conventional treatment is also provided to the patient simultaneously for 30 minutes. Primary outcome: Dysphagia score in aspiration-penetration scale. Timepoint: At the beginning of the sampling, after the last intervention session and one month after the last intervention session. Method of measurement: Fiberoptic endoscopic evaluation of swallowing (FEES) and aspiration-penetration scale. Secondary outcome: Dysphagia handicap index and swallowing disturbance questionnaire. Timepoint: At the beginning of the sampling, after the last intervention session and one month after the last intervention session. Method of measurement: Swallowing Disturbance Questionnaire.;Dysphagia Handicap Index. Timepoint: At the beginning of the sampling, after the last intervention session and one month after the last intervention session. Method of measurement: Dysphagia Handicap Index.

Conditions reported: Parkinson. Parkinson's disease

Registry records for this study

Records are joined using registration identifiers. Titles alone do not establish that two studies are the same.

Study type
Interventional
Interventions
Intervention 1: Combined treatment group: Patients in this group receive anodal stimulation of tDCS with conventional treatment for 30 minutes. The anodal-tDCS with a 1 mA intensity is inserted bilaterally into the pharyngeal motor cortex in the left and right hemisphere. Conventional swallowing treatment is a protocol of rehabilitation and compensatory treatments. This protocol will be obtained according to the clinical evaluation results of swallowing. Rehabilitation treatment includes swallowing maneuvers (Mendelsohn maneuver, supraglottic swallowing maneuver, super-supraglottic swallowing maneuver, and effortful swallow ), oral-motor exercises, and Thermal-tactile stimulation. Compensatory methods will also include adjusting the volume, velocity, and speed of food delivery and postural techniques. Intervention 2: sham treatment group: In the sham-tDCS group, patients first receive tDCS stimulation for 30 seconds with an intensity of 1mA intensity, and after 30 seconds the stimulation stops and the device turns off without informing the patient. The conventional treatment is also provided to the patient simultaneously for 30 minutes.
Phases
N/A
Sponsor
Tehran University of Medical Sciences
Start date reported by registry
2019-05-22 (reported)

Registry updated: Not reported · Status last verified by the registry submitter: Not reported

Registry records retrieved 2026-10-14 (UTC). Individual records may have older updates. Recruitment and eligibility must be confirmed with the study team.

Contact the research team

Public study contacts supplied to the registry. Ask whether recruitment is still open and what participation involves.

Aliakbar Dashtelei · +98 21 7762 8205 · ali_dashtelei@yahoo.com

Study locations

Site status can differ from overall study status. “Status not reported” means local availability needs confirmation. Remote participation and travel arrangements must be checked with the team.

Facility not reported

Iran (Islamic Republic of)

Status not reported

The original descriptions and participation rules come from the registry. Participation is voluntary and does not guarantee benefit.