Trial of Center-Based vs. In-Home Pivotal Response Treatment (PRT) in Autism

Purpose

The aim of this clinical trial is to compare the efficacy of a 16-week center-based Pivotal Response Treatment (PRT-C) versus home-based Pivotal Response Treatment (PRT-H) in targeting social communication deficits in young children with autism spectrum disorder (ASD) with significant language delay. The two groups will also be compared to a control group that consists of children who are receiving treatment as usual (TAU).

Conditions

  • Autism
  • Autism Spectrum Disorder
  • ASD

Eligibility

Eligible Ages
Between 2 Years and 5 Years
Eligible Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Diagnosis of Autism Spectrum Disorder (ASD) based on Autism Diagnostic Interview Revised (ADI-R), Autism Diagnostic Observation Schedule, Second Edition (ADOS-2) or Childhood Autism Rating Scale, Second Edition (CARS-2), Diagnostic and Statistical Manual 5th Edition (DSM-5), and expert clinical opinion; - Boys and girls between 2.0 and 5.11 years; - Ability to participate in the testing procedures to the extent that valid standard scores can be obtained; - Language delay as measured by the Preschool Language Scale, 5th Edition (PLS-5): Standard score at least 1 standard deviation below average for expressive language ability for 2 and 3 year olds; 2 standard deviations for 4 year olds, and 3 standard deviations for 5 year olds; - Stable treatment (e.g., Applied Behavior Analysis - ABA), speech therapy, school placement, psychotropic medication(s) or biomedical intervention(s) for at least 1 month prior to baseline measurements; - No anticipated changes on treatment during study participation for Center-Based Pivotal Response Treatment (PRT-C) and In-Home Pivotal Response Treatment (PRT-H); - No more than 60 minutes of individual 1:1 speech therapy per week; - Availability of at least one parent or primary caregiver 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.); - Receiving ABA of 15 hours or more; - Presence of active medical problem (e.g., unstable seizure disorder or heart disease); - Previous adequate Pivotal Response Treatment (PRT) trial; - Participants living more than 30 miles from Stanford University; - Child's primary language other than English.

Study Design

Phase
N/A
Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel Assignment
Primary Purpose
Treatment
Masking
Single (Outcomes Assessor)
Masking Description
Outcome raters and video coding rating are blinded to group.

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
Center-Based Pivotal Response Treatment (PRT) Intervention (PRT-C)
A 16-week center-based PRT intervention (PRT-C) consisting of 12 hours per week including 1 hour of parent training. This intervention targets social communication deficits.
  • Behavioral: Center-Based Pivotal Response Treatment (PRT) Intervention (PRT-C)
    Pivotal Response Treatment in autism center.
Experimental
Home-Based Pivotal Response Treatment (PRT) Intervention (PRT-H)
A 16-week home-based PRT intervention (PRT-H) consisting of 12 hours per week including 1 hour of parent training. This intervention targets social communication deficits.
  • Behavioral: Home-Based Pivotal Response Treatment (PRT Intervention (PRT-H)
    Pivotal Response Treatment in home environment.
No Intervention
Treatment As Usual (TAU)
This is a control group that consists of children who are receiving treatment as usual (TAU) for a 16-week period. These families will be invited to participate in PRT after completing the 16-week TAU phase.

Recruiting Locations

Stanford University School of Medicine
Stanford 5398563, California 5332921 94305
Contact:
Maddy Clark
650-736-1235
mclark11@stanford.edu

More Details

NCT ID
NCT04899544
Status
Recruiting
Sponsor
Stanford University

Study Contact

Maddy Clark
(650)736-1235
mclark11@stanford.edu