Speech Production Enhancement Using Augmentative Communication for Kids

This study is looking at whether a strategy called speech supplementation can help children with cerebral palsy (CP) speak more clearly. Speech supplementation involves learning to point to pictures, words, or letters on a communication board while you are speaking. The goal is to see how much this strategy can improve how well listeners understand speech in children aged 7 to 17 years who have CP and difficulty speaking (dysarthria). The study will compare your speech clarity before and after learning this strategy. We are looking for 100 participants who can speak in English and use their hands to point.

Study design: This study will include 100 participants and uses a pre- and post-test design, meaning your speech will be assessed before and after the intervention.
What's involved: You will complete speech and language assessments, a pre-test of your usual speech, training in the speech supplementation strategy, and a post-test using the strategy, all within a single day.
Compensation: Not stated in the trial record.
Follow-up: Your speech intelligibility will be measured before and after the intervention within one session on a single day.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.

Speech Production Enhancement Using Augmentative Communication for Kids

Recruiting

NAAges 7–17InterventionalTreatment

University of Wisconsin, Madison

~100 participants

Updated 2026-08-03 on ClinicalTrials.gov

What's tested:AAC Speech supplementation

At a glance

Recruiting sites

1 of 1 listed site is recruiting right now

RecruitingSuspended, closed, or not yet open

What they're measuring

Change in speech intelligibility scores from pre- to post- intervention as measured by listener transcription of speech samples

Measured over Before and after intervention within one session in a single day 1

Conditions

Cerebral Palsy (CP)

Intelligibility, Speech

Augmentative and Alternative Communication

Where it's being run

1 sites across 1 states

Wisconsin1

Study leadership

Katherine C Hustad, PhD · PRINCIPAL_INVESTIGATOR · University of Wisconsin, Madison

Who to contact

WISC Lab

[email protected]

608-263-5822

Email the study team

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Do you actually qualify for this trial?

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Eligibility criteria

Inclusion

Medical diagnosis of cerebral palsy, or a similar, related condition that affects early motor development and presents as a chronic motor disability

Age between 7 and 17 years

Clinical dysarthria with speech intelligibility between 10-85 percent

Able to produce connected speech in English, with a minimum utterance length of 3 words

Able to use hands to point to items on a communication board

Cognitive/language skills that enable basic picture identification on a communication board

Pass pure tone hearing screening

Vision impairment that precludes being able to see items on a communication board.

Not suitable for participation due to other reasons at the discretion of the investigators.

What this trial measures

Change in speech intelligibility scores from pre- to post- intervention as measured by listener transcription of speech samplesBefore and after intervention within one session in a single day 1
Quantify the change in speech intelligibility associated with the use of speech supplementation strategies by having listeners orthographically transcribe speech samples. Intelligibility scores are percentage calculations of the number of words identified correctly by listeners, ranging from 0 to 100 percent. Higher percentages reflect greater intelligibility, or a better understanding of what the speaker said by naive listeners.

Trialytics