NCT07376356

Brief Summary

The purpose of this randomized controlled study is to develop and evaluate a digital cognitive control intervention that integrates a digital application-based child training program with an online parent coaching program for early school-aged children aged 5-8 with autism spectrum disorder (ASD) and their caregivers in South Korea. This intervention is designed to enhance clinical applicability, sustainability, and generalization to daily life of executive skills through active parental involvement. This study has three primary aims: (1) to examine the feasibility, acceptability, and implementation fidelity of the integrated child-parent digital intervention, (2) to investigate the effects of the intervention on children's cognitive control and executive function using behavioral assessments and neurophysiological measures (e.g., EEG), as well as on parents' use of cognitive control-supportive strategies in daily contexts, and (3) to assess whether intervention related changes generalize to real-world functioning, including children's adaptive behavior, academic readiness, and social functioning, as reported by parents, and whether these effects are maintained over time.

Trial Health

65
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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
15mo left

Started Feb 2026

Status
not yet 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 Progress17%
Feb 2026Aug 2027

First Submitted

Initial submission to the registry

January 21, 2026

Completed
8 days until next milestone

First Posted

Study publicly available on registry

January 29, 2026

Completed
3 days until next milestone

Study Start

First participant enrolled

February 1, 2026

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2026

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2027

Last Updated

January 30, 2026

Status Verified

January 1, 2026

Enrollment Period

6 months

First QC Date

January 21, 2026

Last Update Submit

January 28, 2026

Conditions

Outcome Measures

Primary Outcomes (7)

  • EF Touch

    EF Touch is a child-friendly computerized EF task, administered on a touch-screen tablet. The use of EF Touch will allow us to target fine-grained, multiple EF domains, including inhibitory control ("Spatial Conflict Arrows"), working memory ("Pick the Picture"), and attention shifting ("Something's the Same). The proportion of correct trials for each domain will be used as an outcome.

    baseline, immediately after the intervention, 6-weeks follow-up

  • HTKS

    HTKS is a tool that measures behavioral self-regulation in children and consists of short tasks suitable for children 4-8 years of age. The game consists of up to four behavioral rules, and the examiner elicits a natural response from the child, such as "touch your head" or "touch your knee," and then switches the rules in a "reverse" fashion (e.g., "Now touch your toes when I tell you to touch your head"). This should take about 5 minutes.

    baseline, immediately after the intervention, 6-weeks follow-up

  • Stroop

    The Stroop Color and Word Test Children's Version is a tool for measuring the efficiency of inhibitory control, and the Korean version of the test was standardized for reliability and validity in 2006. During the test, words that do not match in color and letter are presented, and the subject must respond to the color instead of the letter, which is an automatic response. It is a neuropsychological test suitable for ages 5-14 and takes about 5-10 minutes.

    baseline, immediately after the intervention, 6-weeks follow-up

  • ACE

    The ADHD Comprehensive Evaluation (ACE) is a standardized, multi-component assessment tool designed to provide a comprehensive evaluation of ADHD-related functional impairments as well as core components of cognitive control. The ACE includes the Korean Attention Test (KAT), the Korean ADHD Rating Scale-5 (K-ARS-5), a Working Memory Test (WMT), and an Executive Function Test (Computerized Trail Making Test; C-TMT). It is a neuropsychological assessment battery suitable for children aged 5 to 15 years and assesses key domains of attention, working memory, and executive functioning relevant to cognitive control. WMT and C-TMT will be utilized in this study and each component requires approximately 5 to 15 minutes to administer.

    baseline, immediately after the intervention, 6-weeks follow-up

  • BRIEF

    The Korean Behavior Rating Inventory of Executive Function is a standardized parent report to observe children's cognitive control. It assesses behavior in executive functioning and is used to assess children with learning disabilities and attention disorders, as well as neurological, psychiatric, and medical conditions. It includes 86 items measuring various aspects of each executive function, which are categorized into eight clinical scales and two validity scales to provide a balanced view of the child's behavior. The test is intended for children ages 5-18 and takes approximately 15 minutes to complete.

    baseline, immediately after the intervention, 6-weeks follow-up

  • EDI

    The Emotion Dysregulation Inventory is an informant questionnaire that assesses emotion regulation difficulties. It consists of 30 items, and informants (parents/caregivers) rate each item (e.g., "has sudden outbursts of emotion," "doesn't seem to enjoy anything") on a 5-point Likert scale ranging from "not at all" to "very severe" based on their observations of the child's functioning over the past 7 days.

    baseline, immediately after the intervention, 6-weeks follow-up

  • Intervention feasibility and acceptability survey

    Intervention feasibility and acceptability survey will be systematically evaluated using multiple indicators relevant to clinical trial implementation. Intervention feasibility will be assessed by tracking enrollment and retention rates across key demographic characteristics, the proportion of participants deemed ineligible based on screening procedures and clinical assessments, and data acquisition rates for cognitive control-related tasks administered before and after the intervention. Intervention acceptability will be evaluated using Likert-scale ratings and open-ended questions to capture participants' experiences and perceptions of the program (e.g., "Please describe the strengths of the intervention program," "Please describe any difficulties you experienced while participating in the intervention").

    immediately after the intervention

Secondary Outcomes (15)

  • Vineland

    baseline, immediately after the intervention, 6-weeks follow-up

  • K-WFA

    baseline, immediately after the intervention, 6-weeks follow-up

  • PIPPS

    baseline, immediately after the intervention, 6-weeks follow-up

  • CBCL

    baseline, immediately after the intervention, 6-weeks follow-up

  • BOSCC

    baseline, immediately after the intervention, 6-weeks follow-up

  • +10 more secondary outcomes

Study Arms (2)

ChuckChuck Step Intervention

EXPERIMENTAL

Children will participate in an executive function training intervention delivered via a digital application provided by Neudive. The intervention consists of daily(Mon-Fri) child-friendly and school-context games that lasts approximately 15 minutes for six weeks. Meanwhile, parents will participate in a parent mediated executive function intervention delivered via telehealth over six weekly 60 minute group sessions. Sessions will include psychoeducation, delivering of executive function related strategies, and interactive activities to promote engagement and skill practice. This program is designed to train children with Autism Spectrum Disorder in executive function and support parents of those children through parent mediated intervention.

Behavioral: ChuckChuck Step

Waitlist Control

ACTIVE COMPARATOR

After collecting data for all timepoints, children in the waitlist control group will participate in the same EF(Executive Function) training intervention delivered via a digital application provided by Neudive. Meanwhile, parents will participate in an abbreviated parent mediated EF intervention delivered via telehealth over three weekly 60 minute group sessions. Sessions will consist of the same contents as the intervention group, including psychoeducation, delivering of EF related strategies, and interactive activities to promote engagement and skill practice.

Behavioral: ChuckChuck Step (Shortened Parent Coaching)

Interventions

ChuckChuck StepBEHAVIORAL

Our intervention will consist of a daily(Mon-Fri), six-week, digital application based intervention (15 minutes per day) for children and six-week telehealth based group intervention (60 minutes per week) to support both children with ASD (5- to 8-year-olds) and their parents regarding executive function hardships. This program provides training for inhibition, working memory, planning and organizing, cognitive flexibility, and emotion regulation. Children will practice these aspects of executive function while playing child-friendly games with the storyline being based on everyday school related themes. Games will consist of go-nogo tasks, following arrows, memory games etc. Parents will learn about these aspects of executive function through real-time telehealth and will be provided with strategies to further promote growth of executive function abilities in their children. The parent mediated intervention curriculum moves beyond didactic instruction by combining psychoeducation with

ChuckChuck Step Intervention

Children in the waitlist control group will receive the same intervention as the intervention group after the waitlist period. Parents in the waitlist control group will receive an abbreviated version(three-week) of the parent mediated intervention with the same contents as the intervention group.

Waitlist Control

Eligibility Criteria

Age5 Years - 8 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)

You may qualify if:

  • Children in South Korea aged 5-8
  • Children with previous medical diagnosis of ASD or children categorized as "Autism" or "Autism Spectrum" after administering ADOS-2
  • Children with language abilities that meet the eligibility for ADOS-2 Module 2 or 3
  • Children with cognitive functioning assessed using the Wechsler Preschool and Primary Scale of Intelligence and a nonverbal IQ of 70 or above

You may not qualify if:

  • Children with significant intellectual disability
  • Children with significant language delay

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Autism Spectrum 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
Model Details: Randomized Waitlist Control Group Design
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

January 21, 2026

First Posted

January 29, 2026

Study Start

February 1, 2026

Primary Completion (Estimated)

August 1, 2026

Study Completion (Estimated)

August 1, 2027

Last Updated

January 30, 2026

Record last verified: 2026-01