Dose Frequency RCT on DTTC in Children With CAS

Childhood apraxia of speech (CAS) is a pediatric motor-based speech sound disorder that requires a specialized approach to intervention (Maas et al., 2014). The extant literature on the treatment of CAS commonly recommends intensive treatment using a motor-based approach, with some of the best evidence supporting the use of Dynamic Temporal and Tactile Cueing (DTTC; Strand, 2020). To date, a rigorous and systematic comparison of high and low dose frequency has not been undertaken for DTTC, resulting in a lack of evidence to guide decisions about the optimal treatment schedule for this intervention. The current study aims to fill this gap in knowledge by comparing treatment outcomes when dose frequency is varied. The goal of this clinical trial is to determine whether the number of treatment sessions per week has an effect on intervention outcomes in 60 children with CAS. The main question this research will address is whether whole word accuracy will differ between two groups of children undergoing DTTC treatment when one group of children receives treatment twice a week for 12 weeks and the other group receives treatment 4 times a week for 6 weeks. Community clinicians will administer all treatment sessions.

NCT Number	NCT05675306
Lead Sponsor	Marquette University Collaborators: Hofstra University, New York University, University of Vermont, University of Sydney, Remarkable Speech and Movement
Conditions	Childhood Apraxia of Speech
Enrollment	60 participants
Start Date	2023-03-01
Primary Completion	2025-11-30 (estimated)
Study Completion	2025-12-31 (estimated)
Updated on ClinicalTrials.gov	2025-05-21