Building a voice cohort for diagnosing and monitoring swallowing disorders using voice analysis.
Official title: A Study on Building a Voice Cohort for the Development of a Non-face-to-face Machine Learning Diagnostic and Monitoring Platform Using Voice Analysis and Various Sensors in Patients With Dysphagia.
Run by Seoul National University Hospital · NCT05439447 · Data updated 2026-05-14
This study is no longer in our active list. It may have stopped recruiting or finished. The details below are as of 2026-05-14 and are kept for reference. Check ClinicalTrials.gov for its current status, or see similar studies below.
This study is testing if changes in voice can help doctors diagnose and keep track of swallowing problems in patients who are having a special swallowing test.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 19 Years and up |
| Sex | All |
| Enrollment | 200 (estimated) |
| Sponsor | Seoul National University Hospital Academic / other |
| Locations | 1 site (Seongnam-si, Gyeonggi-do) |
| Trial ID | NCT05439447 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are adults aged 19 and older who are scheduled for a VFSS and can vocalize as required.
✕Probably not a fit
Patients who cannot vocalize, have skin allergies to sensors, or have significant comorbidities may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This observational study aims to collect data for real-time analysis and monitoring of dysphagia by measuring voice changes in patients scheduled for a video fluoroscopic swallowing test (VFSS). Participants will undergo voice recordings and sensor measurements before and after the VFSS to assess their swallowing function. The study will utilize voice analysis and various sensor data to develop a predictive voice indicator for swallowing difficulties. The research is conducted in a hospital rehabilitation department, focusing on patients who can vocalize and consent to participate.
Why it matters
Potential benefit: If successful, this study could lead to a non-invasive method for diagnosing and monitoring swallowing disorders, improving patient care.
How similar studies have gone: While similar approaches in voice analysis for medical diagnostics have shown promise, this specific application for dysphagia is relatively novel.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Those who are 19 years of age or older and do not fall under the exclusion criteria * Patients scheduled for VFSS test * Patients who can record voices such as "Ah.", "Ummm\~\~\~", short sentences * Patients who can attach sensor on their throat * Those who voluntarily consent to the clinical trial Exclusion Criteria: * Those who do not agree to participate in this study * Patients who can not follow Step 1 instructions * Patients who can not vocalize or follow to speak * Patients who cannot apply the sensor due to skin allergy or hypersensitivity to sensor attachment * Other who have comorbidities (e.g., maligant tumors, blood clotting abnormalities, etc.) that are inappropriate for clinical trial participation by the judgment of the researcher 6) Other who are judged by the researcher to be unsuitable for this clinical trial.
Where it's running
-
Department of Rehabilitation Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine
Seongnam-si, Gyeonggi-do, Korea, Republic of Recruiting
Study contacts
- Study coordinator: Juseok Ryu, M.D, PhD
- Email: jseok337@snu.ac.kr
- Phone: +82-31-787-7739
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.