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Watching how the throat closes during swallowing

This study uses detailed moving scans to investigate swallowing and protection of the airway in Parkinson's.

Testing a treatment or activity · Study reference: JPRN-UMIN000050721

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

This registry record was last updated over six months ago, or its update date is missing. Recruitment may have changed. Confirm with the team before making plans.

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Results reported

Start (reported date)
2023-03-30
Study finished (reported date)
2026-03-31

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

Read the results reported in the registry

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 20years-old and over · Ask the team who can join

These are starting points, not the full rules. The research team can tell you whether the study is right for your situation.

Read all the rules for taking part

Sex eligibility reported by registry: male and female

Inclusion criteria: Patients with Parkinson's disease who were inpatients or outpatients at our Neurology Department. Patients who have been evaluated for swallowing function, are taking three meals orally. Patients are in stable general condition, and have given informed consent for this study. Exclusion criteria: 1. patients who are not medically stable 2. patients who are unable to perform voluntary movements due to impaired consciousness 3. patients who receive nutrition by tube feeding 4. other patients deemed inappropriate by the principal investigator and study coordinators
Full study name & original research details

Official study title

Motor coordination of Laryngeal closure during swallowing in patients with Parkinson's disease (Four-dimensional evaluation using 320-row Area Detector CT) - Motor coordination of Laryngeal closure during swallowing in patients with Parkinson's disease (Four-dimensional evaluation using 320-row Area Detector CT)

Short title used by the registry

Motor coordination of Laryngeal closure during swallowing in patients with Parkinson's disease (Four-dimensional evaluation using 320-row Area Detector CT)

Original description

Intervention: 320-ADCT imaging of swallowing Primary outcome: Start time of laryngeal closure, duration Laryngeal vestibular volume Secondary outcome: Time of movement of various organs of swallowing other than the larynx Distance of hyoid-laryngeal movement Upper Esophageal sphincter opening area Pharyngeal volume Laryngeal penetration and aspiration during swallowing EAT-10/PILL-5 Correlation between CT swallowing index and severity of motor and non-motor symptoms of Parkinson's disease Correlation with brain MRI and dopamine and serotonin transporter imaging findings

Conditions reported: 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
320-ADCT imaging of swallowing
Phases
Not selected
Sponsor
Fujita Health University
Start date reported by registry
2023-03-30 (reported)

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

Registry records retrieved 2026-10-11 (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.

Seiko Shibata · 0562-93-2167 · sshibata@fujita-hu.ac.jp

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

Japan

Status not reported

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