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

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.

Study Overview

• Status: Recruiting
• Conditions: Autism Spectrum Disorder; Early Intervention
• Intervention / Treatment: Behavioral: Behavioral intervention based on Applied Behavior Analysis principles

• Study Type: Interventional
• Enrollment (Anticipated): 80
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Italy
  • Lecco
    • Bosisio Parini, Lecco, Italy, 23842
      • Recruiting
      • Associazione La Nostra Famiglia - IRCCS Eugenio Medea

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 1 year to 2 years (Child)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

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:

• 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.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Prevention
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

Number of Arms

4

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
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; 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.
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

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
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	once at 18 months of age
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	once at 24 months of age
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)	once at 18 months of age
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)	once at 24 months of age

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
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	Twice: at 18 and at 24 months of age

Collaborators and Investigators

• Sponsor: IRCCS Eugenio Medea

Study record dates

Study Major Dates

• Study Start (Actual): September 26, 2022
• Primary Completion (Anticipated): September 26, 2023
• Study Completion (Anticipated): September 26, 2024

Study Registration Dates

• First Submitted: November 3, 2022
• First Submitted That Met QC Criteria: November 10, 2022
• First Posted (Actual): November 14, 2022

Study Record Updates

• Last Update Posted (Actual): November 14, 2022
• Last Update Submitted That Met QC Criteria: November 10, 2022
• Last Verified: November 1, 2022

More Information

Terms related to this study

• Keywords: biomarkers; autism; early intervention; siblings
• Additional Relevant MeSH Terms: Mental Disorders; Neurodevelopmental Disorders; Autistic Disorder; Autism Spectrum Disorder; Child Development Disorders, Pervasive
• Other Study ID Numbers: 897 (Other Grant/Funding Number: M.S.I. Foundation)

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No