Clinical trial NCT06560242: Tracking Early Emergence of Sound Perception Impairments in FXS With Multimodal fNIRS/EEG- Infant
Official title: Tracking Early Emergence of Sound Perception Impairments in FXS With Multimodal fNIRS/EEG- Infant
Study type: INTERVENTIONAL
Overall status: RECRUITING
Phase: NA
Conditions: Fragile X Syndrome
Lead sponsor: Children's Hospital Medical Center, Cincinnati
Sponsor class: OTHER
First posted: 2024-08-19
Enrollment: 30
Sex: ALL
Minimum age (years): 6
Maximum age (years): 26
Standard ages: CHILD
Accepts healthy volunteers: yes
Allocation: NA
Intervention model: SINGLE_GROUP
Primary purpose: BASIC_SCIENCE

Brief summary: Individuals with Fragile X Syndrome show differences in how they understand and learn language from infancy. They frequently have lifelong delays in speech and language as well. In addition, they experience other auditory symptoms, including being very sensitive to certain sounds as well as being more sensitive than others to loud sounds. The underlying brain activity for sound perception and speech learning in Fragile X is not well understood, especially in the infant and toddler years. This study uses behavioral assessment of speech and language abilities, neuroimaging, and hearing tests to understand how speech and hearing are different in children with Fragile X Syndrome.

Detailed description: Fragile X Syndrome (FXS) is the leading monogenic cause of intellectual disability and autism and is associated with extremely high risk for early delays in speech and language. While infancy is essential for speech and language development, neural mechanisms for language impairments have been studied entirely in older children and adults with FXS. Therefore, markers for speech and language impairments are unavailable in infants and toddlers with FXS to predict severity, test potential mechanisms, and track response to intervention. The investigators have identified a hallmark brain-based phenotype of hyperresponsiveness to sounds in adolescents and adults with FXS. This fundamental alteration in cortical responses to sound could influence early language delays, but this phenotype has not been explored in infants or toddlers with FXS.

Specifically, in this study the investigators will use simultaneous EEG/fNIRS during presentation of simple speech, stories, and nonspeech sounds to quantify and localize auditory hypersensitivity and neural differentiation in 30 infants and toddlers, including 15 with FXS and 15 controls. Infants will complete visits at different ages, with possible visits at 6 months, 12 months, 18 months, and 24 months, so that changes with development can be tracked over time.

Eligibility criteria: Inclusion Criteria:

* Diagnoses of Fragile X Syndrome, Typical Development, or History of Premature Birth
* able to sit independently
* English is spoken at home

Exclusion Criteria:

* For all participants: no seizures in the past 6 months
* For typical development group and Fragile X group: not born prior to 32 weeks gestation

Primary outcomes:
measure: Change in Mullen Scales of Early Learning
timeFrame: at 12 month, 18 month, and 24 month visits
measure: Changes in oxygenated and deoxygenated hemoglobin concentration in response to sounds in language regions of the brain
timeFrame: at 12 month, 18 month, and 24 month visits
measure: Changes in amplitude of mismatch negativity response during sound discrimination
timeFrame: at 12 month, 18 month, and 24 month visits
measure: Changes in hearing thresholds
timeFrame: at 12 month, 18 month, and 24 month visits
measure: Otoacoustic Emissions (OAEs)
timeFrame: at 12 month, 18 month, and 24 month visits
measure: Changes in tympanometric pressure profile in the inner ear
timeFrame: at 12 month, 18 month, and 24 month visits
measure: Changes in LENA vocalizations and conversational turns
timeFrame: at 12 month, 18 month, and 24 month visits
Secondary outcomes:
measure: Sensory profile 2 Auditory Processing subtest
timeFrame: at 6 month, 12 month, 18 month, and 24 month visits
measure: Sensory Profile 2 Attentional subtest
timeFrame: at 6 month, 12 month, 18 month, and 24 month visits
Other outcomes:
Locations:
city: Cincinnati
country: United States
facility: Cincinnati Children's Hospital
state: Ohio
Study officials:
References: