NCT06221943

Brief Summary

This is a study that investigate the feasibility, acceptability, and preliminary efficacy of NDBIs for autistic preschoolers delivered in a group-setting. The outcome measures assess the improvements in autistic symptoms, social communication, play skills, group behaviors, adaptation, and parent stress.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
40

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jan 2024

Geographic Reach
1 country

1 active site

Status
completed

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 Start

First participant enrolled

January 1, 2024

Completed
14 days until next milestone

First Submitted

Initial submission to the registry

January 15, 2024

Completed
9 days until next milestone

First Posted

Study publicly available on registry

January 24, 2024

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 20, 2025

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 31, 2025

Completed
Last Updated

July 10, 2026

Status Verified

September 1, 2025

Enrollment Period

1.2 years

First QC Date

January 15, 2024

Last Update Submit

July 7, 2026

Conditions

Keywords

AutismNaturalistic Developmental Behavioral InterventionEffectiveness

Outcome Measures

Primary Outcomes (6)

  • Mullen Early Scale Learning

    A comprehensive measure of cognitive functioning for infants and preschool children from birth to 68 months, consisting of five subscales: gross motor, visual reception, fine motor, receptive language, and expressive language. The maximum raw score is 50 and will be transformed into T score based on the child's age, which can then be used to determine the percentile rank and scale age equivalent.

    50 minutes

  • Individual Growth and Development Indicators

    A play-based observational measure assessing communication, motor function, sociability, and problem solving in toddlers. In this study, we will use the subscale sociability (Early social indicator). The ESI lasts for 6-minutes while key communication skills and social skills will be counted as number, the rate of key skills (per-minute) will be generated and used for analysis.

    15 minutes

  • Vineland Adaptive Behavior Scales - Third Edition, Chinese Version (VABS-3)

    It is a widely used and well validated measurement for assessing adaptive behaviors in individuals, rated by caregivers and teachers. It consists of 4 domains: communication, daily living skills, socialization, and motor skills. These domains encompass 11 subdomains, including receptive, expressive, written, personal, domestic, community, interpersonal relationships, play and leisure, coping skills, gross motor, and fine motor. The raw scores will be transformed to standard score ranged from 20 to 140 with a higher number representing better adaptation.

    20 minutes

  • Treatment fidelity

    The treatment fidelity is used to assess the feasibility of the program. A 10-minutes clip of the treatment session will be coded according to NDBI-Fi or adapted NDBI-Fi.

    10 minutes

  • Attendance rate

    The attendance rate is used to evaluate the acceptability of the program for participating families

    5 minutes

  • The completion of the assessment

    The completion of the assessment would be investigated by checking whether all the outcome measures are completed by the assessors or caregivers.

    5 minutes

Secondary Outcomes (4)

  • Child Behavior Checklist

    20 minutes

  • Autism Treatment Evaluation Checklist

    10 minutes

  • Family Empowerment Scale

    5 minutes

  • Autism Parenting Stress Index

    5 minutes

Other Outcomes (5)

  • Structured Play Assessment

    30 minutes

  • Repetitive Behavior Scale-Revised

    10 minutes

  • Assessment of Preschool Children's Participation

    20 minutes

  • +2 more other outcomes

Study Arms (2)

experimental group

EXPERIMENTAL

ASD preschoolers who receive group-based NDBIs intervention (aged 2-6y)

Behavioral: Group-based Naturalistic Developmental Behavioral InterventionBehavioral: ASD Diagnosis

active control group

ACTIVE COMPARATOR

ASD preschoolers who receive one-on-one NDBIs intervention (aged 2-6y)

Behavioral: One-on-one Naturalistic Developmental Behavioral InterventionBehavioral: ASD Diagnosis

Interventions

Naturalistic Developmental Behavioral Intervention (Utilized NDBI-Fi as the fidelity criteria of the intervention) provided in an one-on-one setting

active control group
ASD DiagnosisBEHAVIORAL

Autism Diagnostic Interview-revised (ADI-R) and Autism Diagnostic Observation Scale (ADOS)

active control groupexperimental group

Naturalistic Developmental Behavioral Intervention (Utilized NDBI-Fi as the fidelity criteria of the intervention) provided in a group setting.

experimental group

Eligibility Criteria

Age2 Years - 6 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)

You may qualify if:

  • clinically diagnosed as Autism Spectrum Disorder
  • aged 2-6 years old
  • one of caregivers is able to participate treatment sessions.

You may not qualify if:

  • having other major diseases.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National Taiwan University Hospital Yunlin Branch

Douliu, Taiwan

Location

MeSH Terms

Conditions

Autism Spectrum DisorderAutistic Disorder

Condition Hierarchy (Ancestors)

Child Development Disorders, PervasiveNeurodevelopmental DisordersMental Disorders

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 15, 2024

First Posted

January 24, 2024

Study Start

January 1, 2024

Primary Completion

March 20, 2025

Study Completion

May 31, 2025

Last Updated

July 10, 2026

Record last verified: 2025-09

Locations