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CompletedNCT05614206Updated Mar 14, 2025

Biomarkers Trajectories of Early Intervention in Siblings of Children with Autism Spectrum Disorder

An interventional study of Behavioral intervention based on Applied Behavior Analysis principles in Autism Spectrum Disorder and Early Intervention, sponsored by IRCCS Eugenio Medea. Completed at 1 site in Italy. Open to participants aged 18 Months to 24 Months, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-03-14.

Sponsored by IRCCS Eugenio Medea · Not applicable, Interventional, and Prevention

Phase
Not applicable
Study type
Interventional
Enrollment
80
Allocation
Randomized
Ages
18 Months to 24 Months
Sex
All
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Study summary

This project deals with essential challenges in the context of Autism Spectrum Disorder benefiting from a prospective design in childhood, early intervention and a cutting-edge experimental techniques. The present study tests the potential effect of early intervention on neural and behavioral responses in toddlers at elevated likelihood of developing autism (siblings of children with autism) who show clinical autistic signs. Four comparison groups were included in the study: (1) toddlers at elevated likelihood of developing autism with clinical autistic signs who receive early intervention from 18 to 24 months (2) toddlers at elevated likelihood of developing autism with clinical autistic signs who do not receive early intervention (3) toddlers at elevated likelihood of developing autism without clinical autistic signs who only received assessment and monitoring, and (4) typically developing toddlers who only received assessment and monitoring.

This study focuses on social and nonsocial sensory integration skills (measured by electroencephalographic and eyetracking recordings) to identify reliable biomarkers for early detection and intervention of autism during a critical period of development.

The characterization of biomarkers will guide the detection of the most vulnerable children that will benefit from early intervention, with the long-term aim of reducing the impact of autism on the National Health System.

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Conditions studied

  • Autism Spectrum Disorder
  • Early Intervention

Keywords

  • siblings
  • autism
  • biomarkers
  • early intervention
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In context

Autistic Disorder

1,344 studies on the registry are indexed under Autistic Disorder; 334 are open to participants now.

This study's enrollment of 80 is above the median of 45 across 1,044 interventional studies indexed under Autistic Disorder.

Browse Autistic Disorder studies →

Lead sponsor

IRCCS Eugenio Medea is the lead sponsor of 104 studies on the registry; 52 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Months to 24 Months
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Toddlers aged between 18 and 24 months
  • Toddlers at elevated likelihood of developing autism, because siblings of children with a diagnosis of autism (for group 1, 2, and 3)

Exclusion criteria

Exclusion Criteria:

  • Gestational age \<36 weeks and/or birthweight \< 2000 grams
  • Griffiths general quotient at 18 months \< 70
  • presence of major complications in pregnancy and/or delivery likely to affect brain development
  • presence of neurological deficits, dysmorphic markers, or other medical conditions.
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Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
80 participants (actual)

Study arms

  • Experimental
    Toddlers at elevated likelihood of developing autism with autistic signs, with early intervention

    Toddlers at elevated likelihood of developing autism with clinical autistic signs who receive an early intervention from 18 to 24 months

    Behavioral: Behavioral intervention based on Applied Behavior Analysis principles

  • No intervention
    Toddlers at elevated likelihood of developing autism with autistic signs, without early intervention

    Toddlers at elevated likelihood of developing autism with clinical autistic signs who do not receive an early intervention

  • No intervention
    Toddlers at elevated likelihood of developing autism without autistic signs who received monitoring

    Toddlers at elevated likelihood of developing autism without clinical autistic signs who only received assessment and monitoring

  • No intervention
    Typically developing toddlers who received monitoring

    Typically developing toddlers who only received assessment and monitoring

Interventions

  • BehavioralBehavioral intervention based on Applied Behavior Analysis principles

    Intervention sessions are conducted by licensed therapists with a training in applied behavior analysis or behavior analysts. One-to-one interventions for 3 h/week are carried out over a period of 5 months. The intervention focused on two target symptoms, imitation and joint attention, as two of the pivotal skills in early development. Behavior analytic techniques are used, including discrete trial, shaping for positive reinforcement, systematic prompting and fading procedures, and reinforcement procedures, according to the published manual. Imitation sessions start with imitation recognition and imitation of familiar actions (gestural and object imitation) and end with the imitation of novel actions. Joint attention evolvs from initiating requests (starting with gaze shift with the child looking away from an interesting object to the adult and back) to coordination of gaze shift, vocalization and gestures through reaching, and pointing and showing behaviors.

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What researchers measure

Primary outcomes

  1. Change of electroencephalographic theta power (theta frequency band)

    Electroencephalographic theta power to synchronous/asynchronous social and nonsocial stimuli will be measured as an index of social and sensory processing in the 4 groups at T0 (18 months) and T1 (24 months). High-density 128 channel is recorded continuously throughout the session

    Time frame: once at 18 months of age

  2. Change of electroencephalographic theta power (theta frequency band)

    Electroencephalographic theta power to synchronous/asynchronous social and nonsocial stimuli will be measured as an index of social and sensory processing in the 4 groups at T0 (18 months) and T1 (24 months). High-density 128 channel is recorded continuously throughout the session

    Time frame: once at 24 months of age

  3. Change of looking behavior (time of fixations to Area of Interests) and pupillometry parameters (pupil diameter)

    Time of fixations (milliseconds) in different Areas of Interests (i.e., month and eyes) and pupil diameters (millimeters) will be recorded and analysed in the 4 groups at T0 (18 months) and T1 (24 months)

    Time frame: once at 18 months of age

  4. Change of looking behavior (time of fixations to Area of Interests) and pupillometry parameters (pupil diameter)

    Time of fixations (milliseconds) in different Areas of Interests (i.e., month and eyes) and pupil diameters (millimeters) will be recorded and analysed in the 4 groups at T0 (18 months) and T1 (24 months)

    Time frame: once at 24 months of age

Secondary outcomes

  1. Change of standardized scores of clinical measures

    Standardized scores (i.e., z-scores, T-scores) of clinical tests (Griffiths Scales, Autism Diagnostic Observation Schedule-Second Edition, McArthur Questionnaire Sensory Profile) will be measured and will be correlated with electroencephalographic (theta power) and eyetracking (looking behavior and pupillometry parameters) data

    Time frame: Twice: at 18 and at 24 months of age

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Study locations

1 site
  • Associazione La Nostra Famiglia - IRCCS Eugenio Medea
    Bosisio Parini, Lecco 23842, Italy
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References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 14, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT05614206
Lead sponsor
IRCCS Eugenio Medea
Responsible party
Sponsor
First posted
Nov 14, 2022
Start date
Sep 26, 2022
Primary completion
Sep 26, 2023
Completion
Sep 26, 2024
Last update
Mar 14, 2025

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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