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Development and research of voice disorder diagnostic devices using AI

Research and development of a new voice disorder diagnostic device (AI-GRBAS system)

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCTs042250058
Enrollment
80
Registered
2025-07-09
Start date
2025-07-09
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Patients with voice disorders, including spasmodic dysphonia and suspected patients Dysphonia, Spasmodic Dysphonia

Interventions

Conventional method Five skilled speech-language pathologists evaluate the patient's speech (vowels/a/) on the GRBAS scale. The same voice is evaluated individually by 5 analysts and re-evaluated by t
Speech-Language Pathology
Perceptual analysis, Speech-language pathologists, Acoustic analysis

Sponsors

Sanuki Tetsuji
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1)Patients with a diagnosis of voice disorder: Including patients diagnosed as certain or suspected cases of spasmodic dysphonia based on the Spasmodic Dysphonia Diagnostic Criteria and Severity Classification. 2)Adults 18 years of age or older 3)Patients who have given written consent to participate in the study.

Exclusion criteria

Exclusion criteria: Patients who are judged to be inappropriate as subjects by the investigators, etc.

Design outcomes

Primary

MeasureTime frame
Agreement between the AI-GRBAS results and the results of a conference of five skilled speech-language pathologists on the S (Strained) rating.

Secondary

MeasureTime frame
Agreement between the AI-GRBAS results and the results of a consensus of five skilled speech-language pathologists for G (Grade) R (Rough), B (Breathlessness), and A (Asthenic) ratings.

Contacts

Public ContactNaoki Takemoto

Nagoya City University Hospital

naoki.takemoto.g@gmail.com+81-52-853-8256

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026