Parent-Mediated Intervention Targeting Insistence on Sameness for Autistic Children

February 23, 2026 updated by: Jennifer Phillips, Stanford University

A Pilot Telehealth Parent-Mediated Intervention Targeting Insistence on Sameness for Autistic Children

This study will examine the potential effectiveness of a virtually delivered parent-mediated intervention for insistence on sameness behaviors in autism and investigate 1) whether caregivers can learn to deliver the adapted Supportive Parenting for Anxious Childhood emotions (SPACE) intervention for IS via telehealth and 2) whether children will show greater improvement in IS behaviors.

Study Overview

Study Type

Interventional

Enrollment (Estimated)

30

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

    • California
      • Stanford, California, United States, 94305
        • Recruiting
        • Stanford University
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • 6:0 to 10:11 years at the time of consent
  • diagnosed with ASD (based on history, review of available medical records including diagnostic testing completed by psychologist)
  • IQ > or = 75 (based on history, review of available medical records)
  • report three or more family accommodations for insistence on sameness based on screening measures
  • English-speaking parent and youth able to consistently participate in study procedures

Exclusion Criteria:

  • children with significant hearing, language or motor impairment
  • unstable behavioral and pharmacological treatments (e.g., anxiety medication) to treat anxiety or IS behaviors prior to two months to the start of the study and no anticipated changes in treatments during the course of the trial
  • caregivers who have participated in formal SPACE training
  • concurrent psychosocial treatment for anxiety or Insistence on Sameness
  • children who have a history of prominent school refusal, self-harm, or suicidal ideation

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Active treatment
Eligible participants that enroll will received 16 week parent based intervention for insistence on sameness
This study will examine the potential effectiveness of a virtually delivered parent-mediated intervention for insistence on sameness behaviors in autism. This includes a 16 week protocol where caregivers meet weekly for one hour with a study therapist.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change from baseline in parent rated Dimensional Assessment of Restricted Behavior (DARB) Scores during treatment.
Time Frame: Screening, Baseline, Weeks 4, 8, 12, 16 and 2 month follow up
DARB scores measure restricted and repetitive behaviors with higher scores indicating greater intensity.
Screening, Baseline, Weeks 4, 8, 12, 16 and 2 month follow up
Change from baseline in clinician rated clinical global impressions scale scores during treatment.
Time Frame: Weeks 8, 16 and 2 month follow up
Score Range: 1 = normal, not at all ill; 7 = among the most extremely ill patients; 1 = very much informed since the initiation of treatment; 7 = very much worse since the initiation of treatment.
Weeks 8, 16 and 2 month follow up

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change from Baseline in Parent-Rated Anxiety as captured by the Anxiety Scale for Children with Autism Spectrum Disorder (ASC-ASD).
Time Frame: Baseline, Week 16 and 2 month Follow up
ASC-ASD captures anxiety with higher scores indicating greater anxiety severity across the subdomains of separation anxiety, uncertainty, performance anxiety, and anxious arousal. [Score Range: 0-72]
Baseline, Week 16 and 2 month Follow up
Change in Emotion Regulation Checklist scores during treatment
Time Frame: Baseline, 16 week
The Emotion Regulation Checklist (ERC) is a 24-item measure of children's self-regulation completed by a caregiver. Items are rated along a continuum (1=rarely, 4=almost always). Higher scores on the Lability/Negativity sub scale indicate more difficulty managing and coping with emotions, while higher scores on the Emotion Regulation sub scale indicate better ability to self-regulate.
Baseline, 16 week
Change in Daily Living Skills Scale Scores during treatment
Time Frame: Baseline, 16 week, 2 month Follow up
Higher scores indicate better ability on the DLSS. [Score Range: 0-53]
Baseline, 16 week, 2 month Follow up
Change in Open Source - Challenging Behavior scores during treatment
Time Frame: Baseline, 16 weeks, 2 month Follow Up
Higher levels indicate greater levels of challenging behavior and lower levels indicate improvement.
Baseline, 16 weeks, 2 month Follow Up

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Jennifer Phillips, PhD, Stanford University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

January 5, 2025

Primary Completion (Estimated)

October 1, 2027

Study Completion (Estimated)

October 1, 2027

Study Registration Dates

First Submitted

June 17, 2024

First Submitted That Met QC Criteria

June 17, 2024

First Posted (Actual)

June 24, 2024

Study Record Updates

Last Update Posted (Actual)

February 25, 2026

Last Update Submitted That Met QC Criteria

February 23, 2026

Last Verified

February 1, 2026

More Information

Terms related to this study

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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Clinical Trials on Supportive Parenting for Anxious Childhood Emotions (SPACE) for insistence on sameness (IS)

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