Swallowing study seeks to define 'Normal' for better diagnosis
NCT ID NCT05497219
First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study is creating a set of reference values for videofluoroscopic swallowing tests, which are X-ray videos of people swallowing different liquids. Researchers will compare healthy adults of all ages to people with swallowing difficulties (dysphagia) from conditions like stroke or aging. The goal is to help doctors more accurately diagnose when swallowing is unsafe or inefficient.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If successful, this could provide doctors with clear benchmarks to better diagnose swallowing disorders across different ages.
- What could go wrong
- This is an observational study, not a treatment trial. It may not change current care directly, and results may not apply to all patient groups.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 580 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Nov 2022
- Expected to finish
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Jul 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Healthy Volunteers: no history of swallowing difficulties. 2. Clinical cohorts: physician confirmed diagnosis of the condition of interest plus symptoms of swallowing difficult, defined as a score \>/=200 on the Sydney Swallow Questionnaire. Exclusion Criteria: * cognitive communication difficulties that may hinder comprehension of the study documents * known allergies to latex, due to the possibility that these items will come into contact with the oral mucosa during data collection * current pregnancy
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
5 sites in 2 countries. The list below names each one and where it is.
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The official record
The full official record for this study. This one lists no contact details, but it is the first place any would appear.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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McMaster University
Hamilton, Ontario, Canada
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The Ohio State University
Columbus, Ohio, 43212, United States
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University Health Network
Toronto, Ontario, M5G 2C4, Canada
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University of Cincinnati Medical Center
Cincinnati, Ohio, 45221, United States
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University of Florida
Gainesville, Florida, 32611, United States
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