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CompletedNCT05865106Updated Aug 30, 2024

The Efficacy and Feasibility of Smartphone-Based Speech Therapy for People with Post-Stroke Dysarthria

An interventional study of Smartphone-based speech therapy and Traditional speech therapy in Dysarthria As Late Effect of Stroke, sponsored by Ewha Womans University Seoul Hospital. Completed at 1 site in Korea, Republic of. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-08-30.

Sponsored by Ewha Womans University Seoul Hospital · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
76
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This clinical trial aims to determine if a new smartphone-based speech therapy is effective and feasible for patients with post-stroke dysarthria. Participants in the intervention group will use the speech therapy app for 1 hour per day, 5 days per week, over a 4-week period. The control group will receive the same duration and frequency of traditional speech therapy as the intervention group. The study will help us understand if smartphone-based speech therapy is a viable treatment option for post-stroke dysarthria patients.

Read the detailed description

A total of 76 patients with post-stroke dysarthria will be recruited and stratified by the onset period into acute-subacute (within 6month after index stroke) and chronic (after 6 months after index stroke). Then participants are randomly divided into intervention and control groups.

Patients in the intervention group will be instructed to use smartphone-based speech therapy applications, including oro-motor exercise, phonation, articulation, resonance, syllable repetition, and reading exercises. After the baseline evaluation, treatment goals, and contents will be determined with a speech-language pathologist according to the condition of individual patients. Daily sessions will be provided for 1 hour per day, 5 days per week, over a 4-week period.

Patients in the control group will be instructed to receive traditional speech therapy. Traditional speech therapy can include face-to-face speech therapy, including oro-motor exercises, reading aloud slowly and clearly, and practicing proper breathing and sustained speech. To maintain the same dose and frequency as the intervention group, 60 minutes of treatment will be performed five days a week (e.g., two days of face-to-face speech therapy per week (60 minutes) + three days of self-training through the reading task workbook (60 minutes).

The aim of the study is to establish smartphone-based speech therapy is non-inferior to traditional speech therapy for improving speech intelligibility.

02

Conditions studied

  • Dysarthria As Late Effect of Stroke

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03

In context

Dysarthria

60 studies on the registry are indexed under Dysarthria; 19 are open to participants now.

This study's enrollment of 76 is above the median of 39 across 44 interventional studies indexed under Dysarthria.

Browse Dysarthria studies →

Lead sponsor

Ewha Womans University Seoul Hospital is the lead sponsor of 5 studies on the registry; 3 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Aged 18 or over.
  2. Neurologically stable stroke patients diagnosed by a stroke specialist neurologist.
  3. Diagnosis of dysarthria caused by stroke as confirmed by a stroke specialty neurologist.
  4. First-ever stroke patients without previous stroke history.
  5. Patients with sufficient cognitive abilities to operate the smartphone-based speech therapy application ( score ≥ 26)
  6. As judged by the neurology specialists: patients with sufficient vision, hearing, communication skills, and motor skills to participate in this study
  7. Must have voluntarily understood the trial and signed a consent form agreeing to comply with precautions.

Exclusion criteria

Exclusion Criteria:

  1. Co-existing language disorder (e.g., aphasia). Aphasia will be determined by a stroke specialist.
  2. Co-existing progressive neurological disorders that can affect dysarthria (e.g., dementia, Pick's disease, Huntington's disease, Parkinson's disease, or Parkinsonism).
  3. Diagnosis of severe mental disorders as determined by a clinician (e.g., depression, schizophrenia, alcohol addiction, or drug addiction).
  4. Patients taking concomitant medications that could affect the trial results during the study period (e.g., cognitive dysfunction medications, anticholinergics, anti-epileptic drugs, anti-anxiety drugs, antidepressants, antipsychotics, and hypnotics).
  5. Patients unable to use/access smartphone technology.
  6. Illiterate patients.
  7. Patients unable to communicate in Korean.
  8. Is unsuitable for participation due to other reasons, as determined by the investigator.
  9. Has refused to participate in the study.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

MMSE and MoCA

Short tests of memory and thinking, each scored out of 30. Lower scores suggest more difficulty; criteria give a range, either to include people with memory problems or to leave them out.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
76 participants (actual)

Study arms

  • Experimental
    Smartphone-based speech therapy

    Smartphone-based speech therapy: Participants will be instructed to use smartphone-based speech therapy (application), including oro-motor exercises, phonation, articulation, resonance, syllable repetition, and reading exercises.

    Device: Smartphone-based speech therapy

  • Other
    Traditional speech therapy

    Traditional speech therapy: Traditional speech therapy methods, such as face-to-face sessions, oro-motor exercises for the tongue, lips, chin, and jaw, reading aloud slowly and clearly, and practicing proper breathing and sustained speech, will be employed.

    Other: Traditional speech therapy

Interventions

  • DeviceSmartphone-based speech therapy

    Participants will be instructed to use the speech therapy app for 1 hour per day (5 days for 1 week) over a 4-week period.

  • OtherTraditional speech therapy

    Participants will receive treatment maintaining the same frequency as the intervention group.

06

What researchers measure

Primary outcomes

  1. Speech intelligibility

    The change in speech intelligibility from baseline to 4 weeks post-intervention will be assessed. Speech intelligibility will be evaluated by having three naive listeners transcribe the participants' recorded speech. These transcriptions will then be compared to the original sentences to calculate a percentage score representing intelligibility. The final intelligibility score will be calculated as the average of the scores from the three naive listeners. A higher percentage indicates greater speech intelligibility.

    Time frame: Baseline, 4 weeks

Secondary outcomes

  1. Maximum phonation Time (MPT)

    The change in maximum phonation time (MPT) from baseline to 4 weeks post-intervention will be assessed. MPT will be used to assess participants' maximum phonation time. The speech evaluator instructs the patient to take a comfortable breath and then produce the sound /a/ for as long as possible. The task is performed twice, and the maximum duration of the two measurements is used.

    Time frame: Baseline, 4 weeks

  2. Oral-diadochokinesis (DDK)

    The Oral-diadochokinesis (DDK) change from baseline to 4 weeks post-intervention will be assessed. DDK will be used to assess articulation rate, regularity, and accuracy. Participants are instructed to repeat the syllables /pa/, /ta/, /ka/, and /pataka/ as quickly and accurately as possible. The number of repetitions is divided by the duration of the task.

    Time frame: Baseline, 4 weeks

  3. Percentage of Consonants Correct (PCC, %)

    The Percentage of Consonants Correct (PCC, %) change from baseline to 4 weeks post-intervention will be assessed. PCC is evaluated as a percentage score calculated from the Urimal Test of Articulation and Phonology 2 (UTAP2).

    Time frame: Baseline, 4 weeks

Other outcomes

  1. Patient Health Questionnaire-9 (PHQ-9)

    PHQ-9 will be used to assess depression. The PHQ-9 is a nine-item self-reported questionnaire for the measurement of depressive symptoms during the last two weeks.

    Time frame: Baseline, 4 weeks

  2. Quality of Life in the Dysarthric Speaker (QOL-Dys)

    QOL-Dys will be used to assess the comprehensive quality of life of individuals with dysarthria. The questionnaire consists of four dimensions: characteristics of speech, situational difficulties, use of compensation strategies, and perception of others. The responses are rated on a 5-point scale from 0 to 4, indicating the extent to which participants agree with each statement.

    Time frame: Baseline, 4 weeks

  3. System Usability Questionnaire (SUS)

    SUS will be used to assess user's subjective views of a system's usability. SUS will only be used in the intervention group at the end of treatment.

    Time frame: 4 weeks

  4. Application usage logs

    The log data will be used to evaluate compliance and acoustic factors. During the 4-week experimental period, the application login time, daily task completion rate, and raw data (.wav) of patients' voices are stored on the server for analysis.

    Time frame: 4 weeks

07

Study locations

1 site
  • Ewha Womans University Medical Center
    Seoul, 07804, Korea, Republic of
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 30, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05865106
Lead sponsor
Ewha Womans University Seoul Hospital
Collaborators
Ewha Womans University Mokdong Hospital, National Rehabilitation Center, Seoul, Korea
Responsible party
Tae-Jin Song, MD, PhD (Principal Investigator, Ewha Womans University Seoul Hospital) — Principal investigator
First posted
May 18, 2023
Start date
Jun 1, 2023
Primary completion
May 20, 2024
Completion
May 20, 2024
Last update
Aug 30, 2024

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Aug 2024. You cannot join it, but the record below documents what was studied.

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