An observational study in Central Auditory Processing Disorder, Autism Spectrum Disorder and Sleep Disturbance, sponsored by Loma Linda University. Recruiting at 1 site in United States. Open to participants aged 6 Years to 17 Years. Per ClinicalTrials.gov, last updated 2026-02-04.
Sponsored by Loma Linda University · Observational
The proposed study aims to understand poor sleep as a possible cause to CAPD in children and adolescents with ASD (ASD+) compared to ASD youth without CAPD (ASD-), using both caregiver-report and objective clinician administered measures. Additionally, the study will aim to understand the complex relationship between CAPD, sleep, and other associated phenotypic features of ASD such as executive and psychiatric functioning.
Participation will involve one assessment session approximating 4 hours including administration of neurocognitive and socioemotional measures by trained research staff. The research team then will determine which participants meet CAPD diagnostic criteria for both the SCAN-3 and RGDT tests and assign them to the ASD+ group. Participants not meeting these criteria will be assigned to the ASD- group. Following the assessment visit, all participants will then be asked to wear actigraphy monitors (comparable to overnight polysomnography) regularly for 14 days during nighttime sleep to objectively measure sleep quality.
121 studies on the registry are indexed under Language Development Disorders; 49 are open to participants now.
This study's planned enrollment of 100 is below the median of 131 across 15 observational studies indexed under Language Development Disorders.
Browse Language Development Disorders studies →Loma Linda University is the lead sponsor of 306 studies on the registry; 46 are open to participants now.
Of its 29 completed or terminated interventional studies of FDA-regulated products, 23 (79%) have results posted.
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One hundred school-aged children and adolescents with ASD who are between the ages of 6-17 years old.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
This group includes children and adolescence with ASD who also have CAPD. No intervention will be applied to this group.
This group includes children and adolescence with ASD who are not affected by CAPD. No intervention will be applied to this group.
Sensory Processing Patterns in Children Ages 14 and Below
Sensory sensitivity is a composite measurement using the 86 item Sensory Profile 2 (SP-2). SP-2 has 4 quadrants; Seeking (degree child obtains sensory input); Avoiding (degree child is bothered by sensory input); Sensitivity ( degree child detects sensory input); Registration (degree child misses sensory input). SP-2 is completed by parents of subjects using a scale of 5 (almost always = 90% or more), 4 (frequently= 75% of the time), 3 (half of the time = 50%), 2 (occasionally= 25%), 1 (almost never = 10% or less), or does not apply. Seeking quadrant normal limits are 20-47; elevated seeking scores are ≥ 48, reduced seeking behaviors are ≤ 19. Avoiding quadrant normal limits are 21-46; elevated avoiding scores are ≥ 47; reduced avoiding scores are ≤ 20. Sensitivity quadrant normal limits are 18- 42; elevated scores are ≥ 43; reduced scores are ≤ 17 and below. Registration quadrant normal limits are 19-43; elevated scores are ≥ 44; reduced scores are ≤18.
Time frame: Through study completion, an average of one year
Sensory Processing Patterns in Children Ages 15 and Above
Sensory sensitivity is a composite measurement using the 60-item adolescent/ adult sensory profile (AASP). AASP has 4 quadrants: Low Registration, Sensation Seeking, Sensitivity; Avoiding. Subjects will respond using a scale of almost never (5% or less of the time), seldom (25% of the time), occasionally (50% of the time), frequently (75% of the time), and almost always (95% or more of the time). Low Registration normal limits are 27-40; elevated scores are ≥ 41; reduced registration scores are ≤ 26. Sensation seeking normal limits are 42-58; elevated sensation scores are ≥ 59; reduced sensation scores are ≤ 25. Sensitivity normal limits are 26-40; elevated sensitivity scores are ≥ 41; reduced scores are ≤ 25. Avoiding normal limits are 26-40; elevated scores are ≥ 41; reduced scores are ≤ 25.
Time frame: Through study completion, an average of one year
Plan to share: No
No publications or documents are linked to this record.
Started Nov 2023 (actual). Primary completion is estimated for Dec 2026, 37 months after the start.
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Language Development Disorders →