Speech therapy for kids with rare genetic conditions and childhood apraxia of speech
Official title: A Single Case Experimental Design Study of Motor Speech Treatment for Children With Childhood Apraxia of Speech and Rare Genetic Conditions
Run by Murdoch Childrens Research Institute · NCT07815249 · Data updated 2026-11-12
This study tests whether 4 weeks of targeted speech therapy can improve speech accuracy in children with childhood apraxia of speech and rare genetic conditions, using one treatment approach per child.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 3 Years to 16 Years |
| Sex | All |
| Enrollment | 20 (estimated) |
| Sponsor | Murdoch Childrens Research Institute Academic / other |
| Locations | 1 site (Melbourne, Victoria) |
| Status | Recruiting |
| Started | July 1, 2026 |
| Main results expected | December 2027 |
| Study ends | December 2028 |
| Registry record updated | September 11, 2026 |
| Trial ID | NCT07815249 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Children aged 3 to 16 years with a confirmed genetic condition and a diagnosis of childhood apraxia of speech, who speak English at home and can participate in therapy 3 times per week for 4 weeks.
✕Probably not a fit
Children who cannot participate for 45 minutes, have difficulty sustaining attention, or have conditions that prevent engagement with the therapy may not benefit.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This single-case experimental design study assigns each child to one of two motor speech therapies, DTTC or ReST, based on age and speech abilities. Participants receive baseline probes, a 4-week treatment block with three therapy sessions per week, and follow-up probes at 1, 4, and 8 weeks to track changes in trained speech targets, generalisation to untrained targets, intelligibility, and functional communication. Repeated measures during baseline, treatment, and follow-up assess level, trend, and maintenance of change. The primary goal is to determine whether the chosen therapy improves accuracy for trained targets in children with CAS and a rare genetic condition, with secondary aims exploring untrained targets, overall intelligibility, and everyday communication per parent report.
Why it matters
Potential benefit: If successful, the trial could show that tailored speech therapy improves speech accuracy and everyday communication for children with CAS and genetic conditions.
How similar studies have gone: Prior work supports the use of DTTC and ReST in improving speech in CAS, though research in the context of rare genetic conditions is limited.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Children aged between 3 and 16 years, with a confirmed genetic condition and a diagnosis of childhood apraxia of speech; English as the primary language at home; able to participate in speech therapy 3 times per week for 4 weeks Exclusion Criteria: * Diagnosis of an acquired brain or movement condition likely to affect speech; currently receiving motor speech therapy in the community; diagnosis of a behavioural condition likely to impact engagement (i.e., unable to participate for 45 minutes, unable to focus attention at the speech therapist's face for a few minutes at a time, unable to say any sounds and/or use gesture, unable to try to copy speech therapist; intolerant to touch (if touch cues are needed for DTTC)
Where it's running
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Murdoch Children's Research Institute
Melbourne, Victoria, Australia Recruiting
Study contacts
- Principal investigator: Miya D St John, PhD — Murdoch Childrens Research Institute
- Study coordinator: Miya D St John, PhD
- Email: miya.stjohn@mcri.edu.au
- Phone: +610399366586
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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DTTC-Connect: a new approach to help kids with childhood apraxia of speech communicate in phrases
A two-month, motor-based therapy called DTTC-Connect is being tested to see if it helps children with childhood apraxia of speech say phrases more clearly.
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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.