NCT06005285

Brief Summary

This study tests the effectiveness of the Early Start Denver Model (ESDM) in community agencies that serve young autistic children. The feasibility, usability and acceptability of the model will be explored. Understanding effectiveness of new evidence-based models will increase the quality of autism care available to more diverse children and families in more geographic locations.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
600

participants targeted

Target at P75+ for not_applicable

Timeline
25mo left

Started Mar 2024

Longer than P75 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

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress51%
Mar 2024Jun 2028

First Submitted

Initial submission to the registry

August 10, 2023

Completed
12 days until next milestone

First Posted

Study publicly available on registry

August 22, 2023

Completed
6 months until next milestone

Study Start

First participant enrolled

March 1, 2024

Completed
3.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2028

Expected
5 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2028

Last Updated

December 5, 2025

Status Verified

December 1, 2025

Enrollment Period

3.8 years

First QC Date

August 10, 2023

Last Update Submit

December 3, 2025

Conditions

Keywords

early interventioncommunity effectivenessearly start denver model

Outcome Measures

Primary Outcomes (2)

  • Assessment of Phase of Preschool Language (APPL)

    the APPL operationalizes research-based language development stages. Language phases are derived from spoken language or augmentative communication systems and standardized assessments. Language samples will be obtained from transcriptions of child-caregiver interactions recorded at each timepoint and coded by naive observers

    Baseline, 6 months, 12 months

  • Vineland Adaptive Behavior Scales-3rd Edition (VABS-3) Communication Domain

    Standardized parent interview measuring the use of adaptive communication. The Vineland Adaptive Behavior Scales-3rd Edition communication domain provides a standardized score with a mean of 100 and a standard deviation of 15. Higher scores mean better outcomes.

    Baseline, 6 months, 12 months

Secondary Outcomes (7)

  • Vineland Adaptive Behavior Scales-3rd Edition (VABS-3)

    Baseline, 6 months, 12 months

  • Caregiver Quality of Life Instrument (CarerQoL)

    Baseline, 6 months, 12 months

  • Pediatric Quality of Life Inventory (PedsQL)

    Baseline, 6 months, 12 months

  • The Parenting Sense of Competence (PSOC)

    Baseline, 6 months, 12 months

  • Brief Observation of Social Change (BOSCC)

    6 months, 12 months

  • +2 more secondary outcomes

Other Outcomes (6)

  • Implementation Climate Scale (ICS)

    baseline

  • Autism Self-Efficacy Scale for Teachers (ASSET)

    6 months, 12 months

  • Provider Report of Sustainment Scale (PRESS)

    12 months

  • +3 more other outcomes

Study Arms (2)

Early Start Denver Model (ESDM)

EXPERIMENTAL

Early Start Denver Model (ESDM) is a comprehensive model that integrates principles of applied behavior analysis (ABA), relationship-based, developmental, and play-based orientations into an individualized and yet manualized treatment. Core features include the use of naturalistic ABA strategies, sensitivity to typical developmental sequence, caregiver involvement, a focus on interpersonal exchange and positive affect within everyday activities. Providers in the ESDM condition will receive training in caregiver coaching strategies and will be asked to conduct caregiver coaching in the strategies at least monthly.

Behavioral: Early Start Denver Model (ESDM)

Treatment as Usual (TAU)

ACTIVE COMPARATOR

Treatment as usual will vary based on the agency. However, a majority of CBAs use Discrete trial teaching (DTT) based on the Lovaas model.19 DTT involves 10 components described in numerous research publications: capturing child physical and visual attention, adult presentation of the stimuli and instruction (antecedent), child behavior, adult reinforcement, correction procedures, 3-5 second interstimulus interval between trials, behavior-specific praise, and data recording. Most CBAs include caregivers in some way as caregiver involvement is required by most funders. Often, caregivers observe treatment sessions or learn the teaching approach being used with their child. Providers often provide consultation on addressing behavioral concerns.

Behavioral: Early Intensive Behavioral Intervention (EIBI)

Interventions

The Early Start Denver Model focuses on teaching inside children's play and care activities, carried out within a joint activity structure. Adults follow children's leads into activities, embed teaching objectives inside the play, use the play as the reward, and build targeted skills following developmental science and ABA principles.

Also known as: naturalistic developmental behavioral intervention (NDBI)
Early Start Denver Model (ESDM)

Treatment as usual provided by community-based autism agencies

Also known as: Discrete Trial Teaching (DTT)
Treatment as Usual (TAU)

Eligibility Criteria

Age12 Months+
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • employed as a program supervisor at participating region
  • plans to be employed for at least the next 12 months
  • serves children with autism under age 5
  • has not has previous training in ESDM
  • supervises at least two technicians
  • supervised by a participating supervisor
  • plans to be employed for at least the next 12 months
  • serves children with autism under age 5
  • has not had previous ESDM training
  • child age 1-5 years
  • has a current autism spectrum disorder (ASD) diagnosis on record or is being served as at-risk for ASD if under age 3
  • family speaks English or Spanish
  • child expected to be in therapy for at least 7 months

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of California, Davis MIND Institute

Sacramento, California, 95817, United States

RECRUITING

Related Publications (1)

  • Stahmer AC, Dufek S, Rogers SJ, Iosif AM. Study Protocol for a Cluster, Randomized, Controlled Community Effectiveness Trial of the Early Start Denver Model (ESDM) Compared to Community Early Behavioral Intervention (EBI) in Community Programs serving Young Autistic Children: Partnering for Autism: Learning more to improve Services (PALMS). BMC Psychol. 2024 Sep 28;12(1):513. doi: 10.1186/s40359-024-02020-0.

MeSH Terms

Conditions

Autistic Disorder

Condition Hierarchy (Ancestors)

Autism Spectrum DisorderChild Development Disorders, PervasiveNeurodevelopmental DisordersMental Disorders

Study Officials

  • Aubyn C Stahmer, PhD

    UC Davis

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Aubyn Stahmer, PhD

CONTACT

Sarah Dufek, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
Interviewers, assessors and video coders will be naive to group status (ESDM or TAU).
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: The primary aim of the proposed study is to test the effectiveness of ESDM using a hybrid type 1 (effectiveness/implementation) randomized controlled trial in which community based agency (CBA) regions will be randomized to receive training in the Early Start Denver Model (ESDM) or continue treatment as usual (TAU). The investigators decided to randomize by region to address potential contamination across providers and children.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 10, 2023

First Posted

August 22, 2023

Study Start

March 1, 2024

Primary Completion (Estimated)

January 1, 2028

Study Completion (Estimated)

June 1, 2028

Last Updated

December 5, 2025

Record last verified: 2025-12

Data Sharing

IPD Sharing
Will share

The investigators will allow for data sharing via the National Data Archive. Descriptive/raw data will be submitted semi-annually; submission of all other data will be done at the time of publication and /or prior to the end of the grant. The investigators are open to accepting requests for data. If request are within the scope of the research team to support so that appropriate analyses can be conducted, a data sharing agreement will be established between the institutions (and investigators) requesting and holding the research data. No personally identifying information will be shared or combinations of data that would have the potential for identification of individual research participants.

Shared Documents
STUDY PROTOCOL, SAP, ICF, CSR
Time Frame
Subsequent to publication of primary research findings.
Access Criteria
Therefore, the investigators will make the data and associated documentation available to users only under a data-sharing agreement that provides for: (1) a commitment to using the data only for research purposes and not to identify any individual participant; (2) a commitment to securing the data using appropriate computer technology; and (3) a commitment to destroying or returning the data after analyses are completed.

Locations