NCT06523387

Brief Summary

This is a research study that will assess the effects of a Pivotal Response Treatment Online Training Course (PRT-O) for training parents of children with Autism Spectrum Disorder (ASD). The study will specifically investigate whether participants can learn to deliver PRT effectively following participation in the Online training.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
44

participants targeted

Target at P25-P50 for not_applicable

Timeline
33mo left

Started Jan 2026

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress7%
Jan 2026Dec 2028

First Submitted

Initial submission to the registry

July 15, 2024

Completed
11 days until next milestone

First Posted

Study publicly available on registry

July 26, 2024

Completed
1.5 years until next milestone

Study Start

First participant enrolled

January 30, 2026

Completed
2.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 30, 2028

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 30, 2028

Last Updated

February 3, 2026

Status Verified

January 1, 2026

Enrollment Period

2.9 years

First QC Date

July 15, 2024

Last Update Submit

January 30, 2026

Conditions

Keywords

Pivotal Response TreatmentParent TrainingOnline Course

Outcome Measures

Primary Outcomes (2)

  • Change from Baseline on Parent Fidelity of Pivotal Response Treatment Implementation as measured on the Home Video Observation (HVO)

    Parent Fidelity of Pivotal Response Treatment Implementation will be rated from 10 min HVO by trained coders naïve to treatment assignment and timepoint using established operational definitions from prior PRT studies (e.g., Hardan et al., 2015; Gengoux et al., 2019).

    6 Weeks and 12 Weeks

  • Change from Baseline on Child Functional Verbal Utterances as measures on the Home Video Observation (HVO)

    Child Functional Verbal Utterances will be rated from 10 min HVO by trained coders naïve to treatment assignment and timepoint using established operational definitions from prior PRT studies (e.g., Hardan et al., 2015; Gengoux et al., 2019).

    6 Weeks and 12 Weeks

Secondary Outcomes (3)

  • Change from Baseline on the Clinical Global Impression Scales (CGI)

    6 Weeks and 12 Weeks

  • Change from Baseline on the Vineland Adaptive Behavior Scales -3 (VABS-3) Communication Domain

    12 Weeks

  • Change from Baseline on the MacArthur-Bates Communication Scales (CDI)

    12 Weeks

Other Outcomes (4)

  • Change from Baseline on the Stanford Social Dimension Scale (SSDS)

    12 Weeks

  • Change from Baseline on the Parent Stress Index (PSI)

    12 Weeks

  • Change from Baseline on the Dimensional Assessment of Repetitive Behavior Scale (DARB)

    12 Weeks

  • +1 more other outcomes

Study Arms (2)

Pivotal Response Treatment Online (PRT-O) Course

EXPERIMENTAL

The PRT-O Online Course (PRT-O) will consist of 10 online lessons completed asynchronously through the Stanford LearnMed Online CANVAS Platform. Parents are expected to view the 10 lessons over the course of a 12-week study period, complete worksheets, and to practice PRT at home.

Behavioral: Pivotal Response Treatment Online (PRT-O) Course

Delayed Treatment Group (DTG)

NO INTERVENTION

No intervention.

Interventions

Pivotal Response Treatment - Parent Training

Pivotal Response Treatment Online (PRT-O) Course

Eligibility Criteria

Age2 Years - 5 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • :0 to 5:11 years at the time of consent,
  • diagnosed with ASD (based on history, review of available medical records including diagnostic testing, e.g., Autism Diagnostic Observation Schedule) or suspicion of Autism Spectrum Disorder diagnosis, and confirmed with Autism Diagnostic Interview-Revised (ADI-R),
  • with significant adaptive communication deficits (i.e., either a Vineland-3 Communication subscale 2 Standard Deviations below average for 2 and 3 year olds and 3 Standard Deviations below for 4 and 5 year olds or a Vineland-3 Expressive V-scale Score 2 Standard Deviations below average for 2 and 3 year olds, or 3 Standard Deviations below for 4 and 5 year old, and at least moderate severity on the Clinical Global Impressions Severity (CGI-S) language subscale),
  • an English-speaking parent able to consistently participate in study procedures and conduct treatment in English,
  • stable psychotropic medication(s) or biomedical intervention(s) for at least 1 month prior to baseline measurements with no anticipated changes during study participation,
  • stable treatment (ABA, Floortime, or other interventions), speech therapy, and school placement for at least 1 month prior to baseline measurements with no expected changes during study participation,
  • no more than 60 minutes of 1:1 speech therapy per week

You may not qualify if:

  • Children who have a primary language other than English
  • parent or child diagnosed with severe psychiatric disorder or unstable medical problem
  • previous adequate trial of pivotal response treatment resulting in parent meeting Pivotal Response Treatment fidelity of implementation at baseline
  • Receiving more than 15 hours of in home 1:1 ABA per week

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Stanford University

Stanford, California, 94305-5719, United States

RECRUITING

MeSH Terms

Conditions

Autism Spectrum DisorderAutistic Disorder

Condition Hierarchy (Ancestors)

Child Development Disorders, PervasiveNeurodevelopmental DisordersMental Disorders

Study Officials

  • Grace Gengoux, PhD

    Stanford University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Estefania Millan, MA

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Clinical Professor

Study Record Dates

First Submitted

July 15, 2024

First Posted

July 26, 2024

Study Start

January 30, 2026

Primary Completion (Estimated)

December 30, 2028

Study Completion (Estimated)

December 30, 2028

Last Updated

February 3, 2026

Record last verified: 2026-01

Data Sharing

IPD Sharing
Will not share

Locations