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RECRUITING
NCT07903675

Effectiveness of the Autism Pupil Screen (APS) Detect Pupillometer for Identifying Autism Spectrum Disorder (ASD) in Routine Healthcare

Sponsor: Schweitzer Engineering Laboratories

View on ClinicalTrials.gov

Summary

Autism spectrum disorder (ASD) is a developmental condition that can affect communication, social interaction, and behavior. Identifying ASD early helps children and families access support services sooner. Pupillometry is a way of measuring the nervous system and brain function by recording the pupil response to light. It is a non-invasive technology that may support screening practices by providing health care providers with an objective physical measure to bolster behavioral screening tools used to identify children with ASD . This study is evaluating how well the APS Detect™ handheld pupillometer works to help screen for ASD in children 2 to 4 years of age during routine pediatric healthcare visits. This investigational device measures the child's pupil response to light and uses these measurements to estimate the likelihood of ASD. Researchers will compare screening results using the APS Detect with the results of reference standard clinical assessments used to determine whether a child has autism. The study will assess how accurately the device identifies children with autism compared to children with typical development based on the Autism Pupil Screen (APS) score. The study will also evaluate whether the device provides the same results when used by different healthcare professionals. Information collected during this study will be used to evaluate device performance, safety, and suitability for use in pediatric healthcare settings and may support future review by the U.S. Food and Drug Administration (FDA).

Key Details

Gender

All

Age Range

24 Months - 60 Months

Study Type

OBSERVATIONAL

Enrollment

330

Start Date

2026-10-23

Completion Date

2027-04-30

Last Updated

2026-10-29

Healthy Volunteers

Yes

Interventions

DEVICE

Autism Pupil Screen (APS) Detect PLR Assessment #1

The APS Detect™ is an investigational handheld pupillometer that measures pupillary light reflex (PLR) responses using a brief, noninvasive assessment. Measurements obtained by the device are used to generate an Autism Pupil Screening (APS) score that is intended to help identify children who may be at risk for autism spectrum disorder (ASD) during routine pediatric healthcare visits. The APS Detect is investigational and has not been cleared by the U.S. Food and Drug Administration (FDA) for clinical use.

OTHER

Modified Checklist for Autism in Toddlers, Revised with Follow-up (M-CHAT/R-F)

A validated parent- or caregiver-completed screening tool used to identify children who may be at risk for autism spectrum disorder (ASD). The questionnaire is designed for children between 16 and 30 months of age and consists of an initial screening questionnaire followed by a structured follow-up interview for children with positive screening results. The M-CHAT-R/F is intended to identify children who may benefit from further developmental and diagnostic evaluation for ASD.

OTHER

Social Responsiveness Scale, Second Edition (SRS-2)

A standardized questionnaire used to measure the presence and severity of social communication difficulties and restricted or repetitive behaviors associated with autism spectrum disorder (ASD). The SRS-2 is completed by a parent, caregiver, teacher, or other knowledgeable respondent and provides quantitative scores that help assess social functioning and identify characteristics associated with ASD across a range of ages. It is intended to support the screening and evaluation of individuals who may have ASD and to monitor changes in social responsiveness over time.

DIAGNOSTIC_TEST

Autism Diagnostic Observation Schedule, Second Edition (ADOS-2)

A standardized, play-based assessment administered by a trained clinician to evaluate social communication, social interaction, play, and restricted or repetitive behaviors associated with autism spectrum disorder (ASD). The ADOS-2 consists of age- and language-specific assessment modules and is widely used as part of a comprehensive diagnostic evaluation to support the identification and classification of ASD.

OTHER

Mullen Scales of Early Learning (MSEL)

A standardized developmental assessment administered by a trained examiner to evaluate cognitive and developmental functioning in young children from birth through 68 months of age. The assessment measures visual reception, fine motor skills, receptive language, and expressive language and provides information about a child's developmental abilities relative to age-based expectations.

OTHER

Adaptive Behavior Assessment System, Third Edition (ABAS-3)

A standardized assessment completed by a parent, caregiver, teacher, or other knowledgeable respondent to evaluate adaptive functioning in everyday life. The ABAS-3 measures skills across conceptual, social, and practical domains, including communication, self-care, social interaction, community use, and functional academics. Results provide an assessment of an individual's ability to perform age-appropriate daily activities and support the evaluation of developmental, intellectual, and behavioral functioning.

DEVICE

Autism Pupil Screen (APS) Detect PLR Assessment #2

The APS Detect™ is an investigational handheld pupillometer that measures pupillary light reflex (PLR) responses using a brief, noninvasive assessment. Measurements obtained by the device are used to generate an Autism Pupil Screening (APS) score that is intended to help identify children who may be at risk for autism spectrum disorder (ASD) during routine pediatric healthcare visits. The APS Detect is investigational and has not been cleared or approved by the U.S. Food and Drug Administration (FDA) for clinical use. This intervention will be used for the second assessment with the APS Detect™ in Arm B, the precision sub-study to evaluate the reliability and reproducibility of the Autism Pupil Screening (APS) Detect™ investigational device.

DEVICE

Autism Pupil Screen (APS) Detect Assessment #3

The APS Detect™ is an investigational handheld pupillometer that measures pupillary light reflex (PLR) responses using a brief, noninvasive assessment. Measurements obtained by the device are used to generate an Autism Pupil Screening (APS) score that is intended to help identify children who may be at risk for autism spectrum disorder (ASD) during routine pediatric healthcare visits. The APS Detect is investigational and has not been cleared or approved by the U.S. Food and Drug Administration (FDA) for clinical use. This intervention will be used for the third assessment with the APS Detect™ in Arm B, the precision sub-study to evaluate the reliability and reproducibility of the Autism Pupil Screening (APS) Detect™ investigational device.

PROCEDURE

Well-child check

A routine pediatric healthcare visit that includes assessment of growth, development, general health, and age-appropriate preventive care. The visit may include a physical examination, developmental surveillance, review of medical history, and discussion of health concerns with the child's parent or caregiver following the American Academy of Pediatrics (AAP) Bright Futures guidelines.

Locations (4)

SEL Health Clinic - Lewiston

Lewiston, Idaho, United States

Palouse Pediatrics

Moscow, Idaho, United States

Palouse Pediatrics

Pullman, Washington, United States

SEL Health Clinic - Pullman

Pullman, Washington, United States