An SRT Model for Early Access to ASD Intervention

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

627 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-07-31

Study Completion Date

2019-06-30

Brief Summary

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This project will implement and evaluate an innovative healthcare service delivery model designed to promote earlier access to specialized intervention for toddlers with ASD. The Screen-Refer-Treat (SRT) model provides a coordinated and cost-effective approach to early identification and intervention by involving both medical and EI providers, and represents a practical and sustainable strategy for bridging the gap between ASD concerns and ASD intervention.

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Detailed Description

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Although caregivers often become concerned about their child by 17-19 months of age, children do not typically receive a diagnosis of autism spectrum disorder (ASD) until they are 4½ years old, or older for Hispanic families. It is now well documented that early participation in ASD-specialized intervention can lead to significant improvements in skills and behavior for toddlers with ASD. However, despite the availability of publicly funded Part C early intervention (EI) services, long waits for a formal ASD diagnosis can prevent toddlers from receiving appropriately specialized intervention during the critical birth-to-three years. In addition, caregivers concerned about ASD experience high levels of uncertainty and stress during this waiting period. This project will implement and evaluate an innovative healthcare service delivery model designed to promote earlier access to specialized intervention for toddlers with ASD. The Screen-Refer-Treat (SRT) model provides a coordinated and cost-effective approach to early identification and intervention by involving both medical and EI providers, and represents a practical and sustainable strategy for bridging the gap between ASD concerns and ASD intervention. The SRT model, which builds on the availability of validated ASD screening tools and low-cost behaviorally-based ASD interventions, will be implemented in four diverse communities across Washington State to evaluate changes in service delivery practices for toddlers with Hispanic as well as Non-Hispanic backgrounds. The SRT model comprises three components: (1) universal ASD screening at 16-20 months and prompt referral to EI programs by primary care physicians (PCPs); (2) expedited ASD assessments within EI programs; and (3) use of an inexpensive, evidence-based ASD-specialized intervention by EI providers. An electronic version of the Modified Checklist for Autism (M-CHAT) with automated scoring that incorporates relevant follow-up questions will be provided to PCP practices, and distance coaching via telemedicine will be available to EI providers to support their ASD assessment and intervention activities. A stepped wedge cluster RCT design will be used to evaluate implementation and outcomes of the SRT model. Data on screening, referral, assessment, and intervention practices will be collected from 40 PCPs and 80 EI providers across the state prior to and following SRT implementation to identify practice changes. In addition, separate samples of caregivers of toddlers with ASD concerns (n=245) will be recruited from communities before and after SRT implementation and followed prospectively to measure differences and changes over time in caregiver wellbeing, parenting efficacy, satisfaction with healthcare systems, and toddler's social-communicative behaviors. We predict that implementation of the SRT model will be associated with higher rates of ASD screening by PCPs, earlier referral to EI programs, earlier initiation of ASD-specialized intervention, reduced time between ASD concerns and diagnosis, and improved caregiver and child outcomes.

Conditions

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Autism Spectrum Disorder

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

SEQUENTIAL

Primary Study Purpose

HEALTH_SERVICES_RESEARCH

Blinding Strategy

NONE

Study Groups

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Screen-Refer-Treat Intervention

PCPs and EI Providers receive training workshops on validated, evidence-based practices (i.e., Online M-CHAT-R/F, STAT, and RIT) and then receive TA (i.e., Screen-Refer-Treat Intervention). At the county level, providers are randomized to the order/timing at which they will receive this system intervention

Group Type EXPERIMENTAL

Screen-Refer-Treat Intervention

Intervention Type BEHAVIORAL

This intervention is healthcare system intervention that trains providers on validated screening tools (Online M-CHAT-R/F and STAT) and an evidence-based behavioral intervention (RIT). PCPs receive a 2-hour training workshop on the Online M-CHAT-R/F and EI Providers receive 2 day-long training workshops, one on the STAT/expedited assessment and one RIT.

Control

No intervention received.

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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Screen-Refer-Treat Intervention

This intervention is healthcare system intervention that trains providers on validated screening tools (Online M-CHAT-R/F and STAT) and an evidence-based behavioral intervention (RIT). PCPs receive a 2-hour training workshop on the Online M-CHAT-R/F and EI Providers receive 2 day-long training workshops, one on the STAT/expedited assessment and one RIT.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

PCPs:

-PCPs must work at a participating primary care practice.

EI Providers:

-EI providers must work at a participating early intervention agency.

Caregivers and Toddlers:

To be categorized as part of the ASD Concerns Sample recruited from PCP offices:

* Toddlers must demonstrate ASD risk/concern by meeting at least one of the following criteria: (1) behaviorally-based caregiver concerns about the presence of ASD; (2) behaviorally-based PCP concerns about the presence of ASD; (3) having an older sibling with an ASD diagnosis; or (4) screening positive for ASD on a validated screening tool.
* Toddlers must be between 16-20 months of age

To be categorized as part of the No ASD Concerns Sample recruited from PCP offices:

\- Toddlers must be between 16-20 months of age

To be categorized as part of the ASD Dx/ASD Concerns Sample recruited from EI agencies:

* Toddlers must demonstrate ASD risk/concern by meeting at least one of the following criteria: (1) behaviorally-based caregiver concerns about the presence of ASD; (2) behaviorally-based PCP concerns about the presence of ASD; (3) having an older sibling with an ASD diagnosis; (4) screening positive for ASD on a validated screening tool; or (5) parent-report of an ASD diagnosis.
* Toddlers must be between 16-30 months of age

-reports that the toddler has any severe visual, auditory, or physical impairments, and/or serious medical, genetic, or neurological disorders

Minimum Eligible Age

16 Months

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes