The purpose of this study is to assess whether oxygen supplementation during sleep improves working memory and other clinical and patient-reported outcomes among children who have Down Syndrome (DS) with moderate to severe Obstructive Sleep Apnea (OSA).
This will be a randomized, single-blind 6-month Phase-2 clinical trial that compares the impact of oxygen therapy during sleep on measures of cognition, behavior, quality of life, cardiac structure and function, and sleep in children with Down Syndrome(DS) with moderate to severe obstructive sleep apnea. The proposed study will involve participation of children and their caregivers. Children will be recruited from each site's sleep clinics and laboratories, Down syndrome clinics and otolaryngology clinics. Community recruitment will be coordinated with local Down Syndrome Associations. Children who agree to participate in the study will be screened for eligibility based on history, physical examination, and review of medical records including history of congenital heart disease and Pulmonary Hypertension (PHTN), and use of Continuous Positive Airway Pressure (CPAP). Children eligible for the study are those with persistent obstructive apnea after adenotonsillectomy or children with obstructive sleep apnea without adenotonsillar hypertrophy or in situations when parents refuse adenotonsillectomy.. The enrollment PSG eligibility will be determined by central scoring of either a research Polysomnography (PSG). In addition to an oxygen titration PSG, which determines responsiveness to oxygen, participants will be asked to wear a wrist actigraph and undergo neurocognitive testing, echocardiography, physical examination, anthropometry, and venipuncture. Caregivers will complete questionnaires to assess their child's emotional, physical, social, and school functioning, sleep quality; child's behavior and cognitive function, and will complete a sleep diary that is used concurrently with their child's use of a wrist actigraph. The latter includes caregiver completion of the "Behavior Rating Inventory of Executive Function" (BRIEF2), a co-primary outcome. At 3 months, caregivers will complete the BRIEF2. At 6 months, all baseline studies and a PSG will be repeated. At baseline, demographic data will be collected, including information on residential address (for use in geocoding).
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
230
Active nocturnal oxygen concentrator
Children's Hospital of Los Angeles
Los Angeles, California, United States
RECRUITINGUniversity of Michigan, Ann Arbor Hospital
Ann Arbor, Michigan, United States
RECRUITINGCincinnati Children's Hospital Medical Center
Cincinnati, Ohio, United States
Behavior Rating Inventory of Executive Function 2 (BRIEF2) working memory score
Change from baseline in the Behavior Rating Inventory of Executive Function 2 (BRIEF2) working memory score (BRIEF2wm). The score ranges from 35-90. A higher score is a worse outcome.
Time frame: Baseline and 6 months
Differential Ability Scales - 2nd Edition (DAS-II) T-score.
Change from baseline in the Differential Ability Scales - 2nd Edition (DAS-II) recognition of pictures (DAS2RoP) T-score. The score ranges from 10-90. A higher score is a better outcome.
Time frame: Baseline and 6 months
Stanford-Binet Intelligence Scales, 5th edition (SB-5) Working Memory Total raw score
Change from baseline of Stanford-Binet Intelligence Scales, 5th edition (SB-5) Working Memory Total raw score. The score ranges from 0-64. A higher score is a better outcome.
Time frame: Baseline and 6 Months
Stanford-Binet Intelligence Scales, 5th edition (SB-5) Working Memory Verbal raw score
Change from baseline of Stanford-Binet Intelligence Scales, 5th edition (SB-5) Working Memory Verbal raw score. The score ranges from 0-30. A higher score is a better outcome.
Time frame: Baseline and 6 Months
Stanford-Binet Intelligence Scales, 5th edition (SB-5) Working Memory Non Verbal raw score
Change from baseline of Stanford-Binet Intelligence Scales, 5th edition (SB-5) Working Memory Non Verbal raw score. The score ranges from 0-34. A higher score is a better outcome.
Time frame: Baseline and 6 Months
Differential Ability Scales-2 (DAS-II) Recall of Digits Forward raw score
Change from baseline in Differential Ability Scales-2 (DAS-II) Recall of Digits Forward raw score. The score ranges from 0-38. A higher score is a better outcome.
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Rainbow Babies and Children's Hospital, Case Medical Center
Cleveland, Ohio, United States
RECRUITINGChildren's Hospital of Philadelphia
Philadelphia, Pennsylvania, United States
RECRUITINGEast Virginia Medical Center
Norfolk, Virginia, United States
RECRUITINGSeattle Children's Hospital
Seattle, Washington, United States
RECRUITINGTime frame: Baseline and 6 Months
Cambridge Neuropsychological Test Automated Battery (CANTAB) Paired Associates Learning (PAL) adjusted total errors based on stages completed
Change from baseline in Cambridge Neuropsychological Test Automated Battery (CANTAB) Paired Associates Learning (PAL) adjusted total errors based on stages completed
Time frame: Baseline and 6 Months
Cambridge Neuropsychological Test Automated Battery (CANTAB) Reaction Time (RTI)
Change from baseline in Cambridge Neuropsychological Test Automated Battery (CANTAB) Reaction Time (RTI)
Time frame: Baseline and 6 Months
Developmental Neuropsychological Assessment 2nd Edition (NEPSY-II) verbal fluency test raw score
Change from baseline in Developmental Neuropsychological Assessment 2nd Edition (NEPSY-II) verbal fluency test raw score. Range-N/A
Time frame: Baseline and 6 Months
Observer Memory Questionnaire - Parent Form (OMQ-PF) total T-score
Change from baseline in Observer Memory Questionnaire - Parent Form (OMQ-PF) total T-score. The score ranges from 0-135. A higher score is a better outcome.
Time frame: Baseline and 6 Months
Behavior Rating Inventory of Executive Function 2 (BRIEF2) T-scores for subscales (Inhibit, Self-Monitor, Shift, Emotional Control, Initiate)
Change from baseline in Behavior Rating Inventory of Executive Function 2 (BRIEF2) T-scores for subscales (Inhibit, Self-Monitor, Shift, Emotional Control, Initiate).
Time frame: Baseline and 6 Months
Child Behavior Checklist (CBCL) T-scores for domains (Internalizing, Externalizing, Total Problems).
Change from baseline in Child Behavior Checklist (CBCL) T-scores for domains (Internalizing, Externalizing, Total Problems).
Time frame: Baseline and 6 Months
Child Behavior Checklist (CBCL) T-scores for subscales (Attention Problems, Thought Problems, Rule-Breaking Behaviors, Aggressive Behaviors)
Change from baseline in Child Behavior Checklist (CBCL) T-scores for subscales (Attention Problems, Thought Problems, Rule-Breaking Behaviors, Aggressive Behaviors)
Time frame: Baseline and 6 Months
KIDSCREEN-27 T-score
Change from baseline in KIDSCREEN-27 T-score, including domains of: physical well-being; psychological well-being; autonomy and parent relations; social support and peers; school environment. Range-N/A
Time frame: Baseline and 6 Months
Patient-Reported Outcomes Measurement Information System (PROMIS) sleep disturbance T-score
Change from baseline in Patient-Reported Outcomes Measurement Information System (PROMIS) sleep disturbance T-score. The score ranges from 28.7-85.6. A higher score is a worse outcome.
Time frame: Baseline and 6 Months
Patient-Reported Outcomes Measurement Information System (PROMIS) sleep-related impairment T-score
Change from baseline in Patient-Reported Outcomes Measurement Information System (PROMIS) sleep-related impairment T-score. The score ranges from 37.9-86.6. A higher score is a worse outcome.
Time frame: Baseline and 6 Months
Presence of right ventricular hypertension
Presence of right ventricular hypertension as measured by tricuspid regurgitation continuous wave peak velocity (defined as a ratio of pulmonary artery pressure / systolic arterial pressure (PAP/SAP) \>1/3); interventricular septal flattening as measured by eccentricity index (defined as systolic ratio of \>1.25)
Time frame: Baseline and 6 Months
Wechsler Intelligence Scale (WISC) for Children 5th edition (WISC-5) Cancellation raw score
Change from baseline of Wechsler Intelligence Scale (WISC) for Children 5th edition (WISC-5) Cancellation raw score. The score ranges from 0-128. A higher score is a better outcome.
Time frame: Baseline and 6 Months
Wechsler Preschool and Primary Scale of Intelligence 4th edition (WPPSI-4) Cancellation task raw score
Change from baseline in Wechsler Preschool and Primary Scale of Intelligence 4th edition (WPPSI-4) Cancellation task raw score (if unable to complete Wechsler Intelligence Scale 5th edition Cancellation test). The score ranges from 0-96. A higher score is a better outcome.
Time frame: Baseline and 6 Months
Behavior Rating Inventory of Executive Function 2 (BRIEF2) T-scores for Behavior Regulation Index (BRI) domain.
Change from baseline in Behavior Rating Inventory of Executive Function 2 (BRIEF2) T-scores for Behavior Regulation Index (BRI) domain. The score ranges from 35-90. A higher score is a worse outcome.
Time frame: Baseline and 6 Months
Behavior Rating Inventory of Executive Function 2 (BRIEF2) T-scores for Emotional Recognition Index (ERI) domain.
Change from baseline in Behavior Rating Inventory of Executive Function 2 (BRIEF2) T-scores for Emotional Recognition Index (ERI) domain. The score ranges from 35-90. A higher score is a worse outcome.
Time frame: Baseline and 6 Months
Behavior Rating Inventory of Executive Function 2 (BRIEF2) T-scores for Cognitive Regulation Index (CRI) domain.
Change from baseline in Behavior Rating Inventory of Executive Function 2 (BRIEF2) T-scores for Cognitive Regulation Index (CRI) domain. The score ranges from 35-90. A higher score is a worse outcome.
Time frame: Baseline and 6 Months
7-day actigraphy measurement of sleep efficiency
Change from baseline in 7-day actigraphy measurement of sleep efficiency
Time frame: Baseline and 6 Months
7-day actigraphy measurement of time wake after sleep onset
Change from baseline in 7-day actigraphy measurement of time wake after sleep onset
Time frame: Baseline and 6 Months
7-day actigraphy measurement of sleep fragmentation
Change from baseline in 7-day actigraphy measurement of sleep fragmentation
Time frame: Baseline and 6 Months
7-day actigraphy measurement of total sleep duration
Change from baseline in 7-day actigraphy measurement of total sleep duration
Time frame: Baseline and 6 Months
Polysomnography (PSG) AHI parameter
Change from baseline in Polysomnography (PSG) AHI parameter. The score ranges from 0- \>40. A higher score is a worse outcome.
Time frame: Baseline and 6 Months
Polysomnography (PSG) percentage time of O2 <90 % parameter
Change from baseline in Polysomnography (PSG) percentage time of O2 \<90 % parameter
Time frame: Baseline and 6 Months
Polysomnography (PSG) sleep apnea associated hypoxic burden parameter
Change from baseline in Polysomnography (PSG) sleep apnea associated hypoxic burden, parameter
Time frame: Baseline and 6 Months
Polysomnography (PSG) end-tidal CO2 level, parameter
Change from baseline in Polysomnography (PSG) end-tidal CO2 parameter.
Time frame: Baseline and 6 Months
Polysomnography (PSG) -based measure of sleep stages
Change from baseline in Polysomnography (PSG) -based measure of sleep stages. Range- N/A
Time frame: Baseline and 6 Months
Polysomnography (PSG) -based measure of EEG power bands
Change from baseline in Polysomnography (PSG) -based measure of EEG power bands
Time frame: Baseline and 6 Months
Polysomnography (PSG) -based measure of spindle morphology
Change from baseline in Polysomnography (PSG) -based measure of spindle morphology
Time frame: Baseline and 6 Months
Polysomnography (PSG) -based measure of spindle numbers
Change from baseline in Polysomnography (PSG) -based measure of spindle numbers
Time frame: Baseline and 6 Months
Polysomnography (PSG) -based measure of spindle density
Change from baseline in Polysomnography (PSG) -based measure of spindle density
Time frame: Baseline and 6 Months
Polysomnography (PSG) -based measure of slow wave oscillations
Change from baseline in Polysomnography (PSG) -based measure of slow wave oscillations
Time frame: Baseline and 6 Months
Left ventricular diastolic function as measured by Mitral E and A wave (E:A ratio)
Change from baseline in left ventricular diastolic function as measured by Mitral E and A wave (E:A ratio)
Time frame: Baseline and 6 Months
Left ventricular diastolic function as measured by E wave deceleration time
Change from baseline in left ventricular diastolic function as measured by E wave deceleration time
Time frame: Baseline and 6 Months
Left ventricular diastolic function as measured by Mitral septal and lateral e' and a' (E/e')
Change from baseline in left ventricular diastolic function as measured by Mitral septal and lateral e' and a' (E/e')
Time frame: Baseline and 6 Months
Left ventricular diastolic function as measured by Mitral lateral tissue Doppler isovolumic relaxation time
Change from baseline in left ventricular diastolic function as measured by Mitral lateral tissue Doppler isovolumic relaxation time
Time frame: Baseline and 6 Months
Left ventricular diastolic function as measured by Pulmonary vein A wave reversal duration
Change from baseline in left ventricular diastolic function as measured by Pulmonary vein A wave reversal duration
Time frame: Baseline and 6 Months
Left ventricular diastolic function as measured by Left atrial volume
Change from baseline in left ventricular diastolic function as measured by Left atrial volume
Time frame: Baseline and 6 Months