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A Center Based Study of Pivotal Response Treatment for Preschoolers With Autism

A Center Based Randomized Controlled Trial of Pivotal Response Treatment for Preschoolers With Autism

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03778827
Acronym
PRT-C
Enrollment
75
Registered
2018-12-19
Start date
2019-05-13
Completion date
2026-03-28
Last updated
2026-06-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Autism, Autism Spectrum Disorder

Keywords

Pivotal Response Treatment

Brief summary

The purpose of this study is to examine the effectiveness of pivotal response training (PRT) in an intensive center-based environment to treat social communication deficits in children with autism spectrum disorder (ASD).

Detailed description

The purpose of this study is to examine the effectiveness of pivotal response training (PRT) in an intensive center-based preschool environment to treat social communication deficits in children with autism spectrum disorder (ASD). The study will compare Pivotal Response Treatment (PRT) to a delayed treatment group (DTG). PRT is a naturalistic behavioral intervention based on the principles of applied behavior analysis which has shown to be effective in treating the core deficits in children with ASD. The study will compare the combination of parent training with intensive center-based PRT (PRT-C) to a DTG and will include 44 children ages 2 to 3.11 years with ASD and social communication deficits.

Interventions

BEHAVIORALIntensive Center-Based Pivotal Response Treatment (PRT-C)

Intensive Center-Based Pivotal Response Treatment (PRT-C) will consist of a combination of weekly individual parent training sessions and center-based therapy for a total of 13 weekly treatment hours.

Sponsors

Stanford University
Lead SponsorOTHER
John & Marcia Goldman Foundation
CollaboratorUNKNOWN

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
2 Years to 3 Years
Healthy volunteers
No

Inclusion criteria

* Diagnosis of Autism Spectrum Disorder (ASD) based on clinical interview and Diagnostic and Statistical Manual, 5th edition (DSM-5) and confirmed using the Autism Diagnostic Interview Revised (ADI-R) and Autism Diagnostic Observation Schedule, 2nd edition (ADOS-2) or Childhood Autism Rating Scale (CARS-2); Diagnostic and Statistical Manual, 5th edition (DSM-5), and expert clinical opinion * Boys and girls between 2 years and 3 years and 11 months * Ability to participate in the testing procedures to the extent that valid standard scores can be obtained * Stable treatment (e.g., applied behavior analysis (ABA), speech therapy, psychotropic medication(s) or biomedical intervention(s) for at least 1 month prior to baseline measurements with no anticipated changes during study participation * Developmentally delayed with Mullen Scales of Early Learning (MSEL) or Developmental Profile (DP-4) composite score below 85 (1 Standard Deviation below the mean) * Availability of at least one English-speaking parent who can consistently participate in parent training and research measures.

Exclusion criteria

* Current or lifetime diagnosis of severe psychiatric disorder (e.g., bipolar disorder, etc.) * Presence of active medical problem (e.g., unstable seizure disorder or heart disease) * Child primary language other than English * Previous adequate trial of Pivotal Response Treatment * More than 15 hours per week of in-home applied behavior analysis (ABA).

Design outcomes

Primary

MeasureTime frame
Mean Change from baseline on the Social Responsiveness Scale-2 Total Score at 12 WeeksBaseline and Week 12
Mean change from baseline on the Brief Observation of Communication Change (BOSCC) total score at 12 WeeksBaseline and Week 12
Mean change from baseline on the frequency if the child's functional utterances on the structured lab observation at 12 WeeksBaseline and Week 12

Secondary

MeasureTime frame
Mean change from baseline on the Vineland Adaptive Behavior Scales 3rd Edition Socialization subscale at 12 WeeksBaseline and Week 12
Mean change from baseline on the MacArthur-Bates Communication Development Inventory at 12 WeeksBaseline and Week 12

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORAntonio Y. Hardan, MD

Stanford University

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 26, 2026