Effectiveness of the Rhythm Effect for People Who Stutter: Validation Through Intervention for Japanese-Speaking Elementary School Students

Effectiveness of the Rhythm Effect for People Who Stutter: Validation Through Intervention for Japanese-Speaking Elementary School Students - Effectiveness of the Rhythm Effect for People Who Stutter: Validation Through Intervention for Japanese-Speaking Elementary School Students

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000061007

Enrollment

Registered

2026-04-01

Start date

2026-02-13

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

developmental stuttering

Interventions

Rhythm-based treatment

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Diagnosed with developmental stuttering by a physician based on either the ICD-10 or DSM-5 criteria. 2. Enrolled in elementary school at the start of the intervention. 3. Still attending elementary school at the end of the intervention.

Exclusion criteria

Exclusion criteria: 1. Prior experience with an intervention using rhythm effects. 2. Received professional intervention for stuttering within the past six months. 3. Limited proficiency in Japanese, for example, due to being raised by a caregiver with a non-Japanese linguistic background.

Design outcomes

Primary

Measure	Time frame
Results of stuttering assessments at each of the following time points: six weeks prior to the intervention; one, three, and six months post-initiation; and six months post-completion.	—

Secondary

Measure	Time frame
Results of the CAT-J at each of the following time points: six weeks pre-intervention; one, three, and six months post-initiation; and six months post-completion. Results of the OASES-S-J at each of the following time points: six weeks pre-intervention; one, three, and six months post-initiation; and six months post-completion. Speech in daily life situations (speech during a story retelling task evaluated based on stuttering assessment criteria) at each of the following time points: six weeks pre-intervention; one, three, and six months post-initiation; and six months post-completion.	—

Measure

Time frame

Results of the CAT-J at each of the following time points: six weeks pre-intervention; one, three, and six months post-initiation; and six months post-completion. Results of the OASES-S-J at each of the following time points: six weeks pre-intervention; one, three, and six months post-initiation; and six months post-completion. Speech in daily life situations (speech during a story retelling task evaluated based on stuttering assessment criteria) at each of the following time points: six weeks pre-intervention; one, three, and six months post-initiation; and six months post-completion.

—

Countries

Japan

Contacts

Public ContactHideaki Yokoi

Osaka University United Graduate School of Child Development, Kanazawa Campus

u224642i@ecs.osaka-u.ac.jp076-264-5513

Outcome results

None listed

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