NCT03556826

Brief Summary

In the proposed pilot study, ASD+ toddlers will undergo Social Value Training (SVT) using a gaze-contingent eye-tracking paradigm in toddlers with elevated symptoms of ASD (ASD+) (n=48). SVT will be administered over a two-day period and the training effects will be assessed by changes in visual attention to high-value (HV) faces as compared to low-value (LV) faces between baseline, post-baseline, and a follow-up assessment using two tasks: a laboratory selective attention (LSA) task and real-world selective attention (RWSA) task. The investigators will also evaluate acceptability and feasibility of the value training and contribution of sex, nonverbal developmental level, and severity of autism symptoms to response to the training.

Trial Health

57
Monitor

Trial Health Score

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

Enrollment
3

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Dec 2019

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
terminated

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

First Submitted

Initial submission to the registry

June 1, 2018

Completed
13 days until next milestone

First Posted

Study publicly available on registry

June 14, 2018

Completed
1.5 years until next milestone

Study Start

First participant enrolled

December 13, 2019

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 3, 2020

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 3, 2020

Completed
Last Updated

December 19, 2023

Status Verified

December 1, 2023

Enrollment Period

3 months

First QC Date

June 1, 2018

Last Update Submit

December 13, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Proportion of looking at faces during the laboratory and real-world tests

    The proportion of time spent attending to faces assigned HV and LV, standardized by the amount of valid eye-tracking data collected during the trial

    Average trial duration: for laboratory task: 2 seconds, for real-world task: 1 minute

Secondary Outcomes (1)

  • Proportion of looking at the scene during laboratory and real-world tests

    Average trial duration: for laboratory task: 2 seconds, for real-world task: 1 minute

Study Arms (1)

Social Value Learning

EXPERIMENTAL

For each child, two faces, randomly selected from the pool of four faces, will be assigned the high-value (HV) status and the other two the low-value (LV) status. Value status will be randomized between the faces and children and all four faces will have the same probability of being assigned HV or LV across all participants. A gaze fixation on a HV face will always activate a dynamic display and the face will smile brightly. A gaze fixation on a LV face will always result in no change to its display. Effects of training will be tested one day (efficacy) and one month (maintenance) after training. During each of the follow-up assessments, each child will first undergo the Laboratory Selective Attention (LSA) task to assess if they retained value-face associations from the training sessions, followed by the Real-World Selective Attention (RWSA) task to evaluate generalization.

Behavioral: Social Value Learning Training

Interventions

For each child, two faces will be assigned the high-value (HV) status and the other two the low-value (LV) status. Value status will be randomized between the faces and children and all four faces will have the same probability of being assigned HV or LV across all participants. A gaze fixation on a HV face will always activate a dynamic display and the face will smile brightly. A gaze fixation on a LV face will always result in no change to its display.

Social Value Learning

Eligibility Criteria

Age15 Months - 21 Months
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)

You may qualify if:

  • Singleton pregnancy
  • Gestational age of 37-42 weeks
  • Appropriate weight for gestational age
  • Presence of an older full biological sibling with ASD
  • Autism Diagnostic Observation Schedule-2 (ADOS-2) score at 18 months in the clinical range (calibrated severity score \>3)

You may not qualify if:

  • Congenital infections
  • Non-febrile seizure disorder
  • Hearing loss
  • Visual impairment
  • Presence of any known chromosomal abnormality or congenital infection
  • Prenatal exposure to illicit drugs
  • Major psychotic disorder in first degree relatives.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Yale University School of Medicine

New Haven, Connecticut, 06511, United States

Location

MeSH Terms

Conditions

Autism Spectrum Disorder

Condition Hierarchy (Ancestors)

Child Development Disorders, PervasiveNeurodevelopmental DisordersMental Disorders

Study Officials

  • Katarzyna Chawarska, PhD

    Social and Affective Neuroscience of Autism Program, Yale Child Study Center

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 1, 2018

First Posted

June 14, 2018

Study Start

December 13, 2019

Primary Completion

March 3, 2020

Study Completion

March 3, 2020

Last Updated

December 19, 2023

Record last verified: 2023-12

Data Sharing

IPD Sharing
Will not share

Locations