NCT06043440 · Brigham and Women's Hospital
Down Syndrome Obstructive Sleep Apnea
(DOSA)
What this study is about
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).
View original scientific description
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).
Interventions
DRUG
Oxygen
Active nocturnal oxygen concentrator
Primary outcome measures
Behavior Rating Inventory of Executive Function 2 (BRIEF2) working memory score
Time frame: Baseline and 6 months
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.
Differential Ability Scales - 2nd Edition (DAS-II) T-score.
Time frame: Baseline and 6 months
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.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Ages 5.0 to 17.9 years at the time of screening 2. Children with OSA and obstructive apnea hypopnea index (OAHI) ≥5/hour. 3. Absence of clinically significant hypoxia defined as oxygen saturation \<88% for 5 minutes or episodic desaturation to 60% as these levels would otherwise identify children eligible to routinely receive oxygen. 4. Favorable response to oxygen therapy (allowing randomization) will be defined as follows: 1. Oxygen saturation nadir \>92% and 2. Decrease in obstructive index \< 5 / hour or by \> 50% from screening PSG 3. Reaching an optimum oxygen flow which is defined as the flow that achieves the lowest level of AHI with maximum CO2 level less than 65 mmHg observed for 5 consecutive minutes and or an increase in CO2 by less than 15 points above baseline. The above criteria are observed while the patient spends a minimal of 30 minutes in the supine position and at least one cycle of rapid eye movement (REM) sleep. 4. Oxygen flow
Where
- Los Angeles, California
- Ann Arbor, Michigan
- Cincinnati, Ohio
- Cleveland, Ohio
- Philadelphia, Pennsylvania
- Norfolk, Virginia
- Seattle, Washington
Collaborators
Children's Hospital Medical Center, Cincinnati, Children's Hospital of Philadelphia, Rainbow Babies and Children's Hospital, University of Michigan, Children's Hospital Los Angeles, Children's Hospital of The King's Daughters, Seattle Children's Hospital, University of Southern California
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Apr 20, 2025 · Source of record for eligibility and locations